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5110 lines
173 KiB
5110 lines
173 KiB
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "MPEG4Writer"
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#include <algorithm>
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#include <arpa/inet.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <pthread.h>
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#include <sys/prctl.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <utils/Log.h>
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#include <functional>
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#include <fcntl.h>
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#include <media/stagefright/MediaSource.h>
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#include <media/stagefright/foundation/ADebug.h>
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#include <media/stagefright/foundation/AMessage.h>
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#include <media/stagefright/foundation/AUtils.h>
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#include <media/stagefright/foundation/ByteUtils.h>
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#include <media/stagefright/foundation/ColorUtils.h>
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#include <media/stagefright/foundation/avc_utils.h>
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#include <media/stagefright/MPEG4Writer.h>
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#include <media/stagefright/MediaBuffer.h>
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#include <media/stagefright/MetaData.h>
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#include <media/stagefright/MediaDefs.h>
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#include <media/stagefright/MediaErrors.h>
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#include <media/stagefright/Utils.h>
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#include <media/mediarecorder.h>
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#include <cutils/properties.h>
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#include "include/ESDS.h"
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#include "include/HevcUtils.h"
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#ifndef __predict_false
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#define __predict_false(exp) __builtin_expect((exp) != 0, 0)
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#endif
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#define WARN_UNLESS(condition, message, ...) \
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( (__predict_false(condition)) ? false : ({ \
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ALOGW("Condition %s failed " message, #condition, ##__VA_ARGS__); \
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true; \
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}))
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namespace android {
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static const int64_t kMinStreamableFileSizeInBytes = 5 * 1024 * 1024;
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static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
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static const uint8_t kNalUnitTypePicParamSet = 0x08;
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static const int64_t kInitialDelayTimeUs = 700000LL;
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static const int64_t kMaxMetadataSize = 0x4000000LL; // 64MB max per-frame metadata size
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static const int64_t kMaxCttsOffsetTimeUs = 30 * 60 * 1000000LL; // 30 minutes
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static const size_t kESDSScratchBufferSize = 10; // kMaxAtomSize in Mpeg4Extractor 64MB
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static const char kMetaKey_Version[] = "com.android.version";
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static const char kMetaKey_Manufacturer[] = "com.android.manufacturer";
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static const char kMetaKey_Model[] = "com.android.model";
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#ifdef SHOW_BUILD
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static const char kMetaKey_Build[] = "com.android.build";
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#endif
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static const char kMetaKey_CaptureFps[] = "com.android.capture.fps";
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static const char kMetaKey_TemporalLayerCount[] = "com.android.video.temporal_layers_count";
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static const int kTimestampDebugCount = 10;
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static const int kItemIdBase = 10000;
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static const char kExifHeader[] = {'E', 'x', 'i', 'f', '\0', '\0'};
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static const uint8_t kExifApp1Marker[] = {'E', 'x', 'i', 'f', 0xff, 0xe1};
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static const uint8_t kMandatoryHevcNalUnitTypes[3] = {
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kHevcNalUnitTypeVps,
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kHevcNalUnitTypeSps,
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kHevcNalUnitTypePps,
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};
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static const uint8_t kHevcNalUnitTypes[5] = {
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kHevcNalUnitTypeVps,
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kHevcNalUnitTypeSps,
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kHevcNalUnitTypePps,
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kHevcNalUnitTypePrefixSei,
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kHevcNalUnitTypeSuffixSei,
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};
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/* uncomment to include build in meta */
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//#define SHOW_MODEL_BUILD 1
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class MPEG4Writer::Track {
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public:
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Track(MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId);
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~Track();
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status_t start(MetaData *params);
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status_t stop(bool stopSource = true);
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status_t pause();
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bool reachedEOS();
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int64_t getDurationUs() const;
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int64_t getEstimatedTrackSizeBytes() const;
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int32_t getMetaSizeIncrease(int32_t angle, int32_t trackCount) const;
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void writeTrackHeader();
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int64_t getMinCttsOffsetTimeUs();
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void bufferChunk(int64_t timestampUs);
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bool isAvc() const { return mIsAvc; }
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bool isHevc() const { return mIsHevc; }
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bool isHeic() const { return mIsHeic; }
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bool isAudio() const { return mIsAudio; }
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bool isMPEG4() const { return mIsMPEG4; }
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bool usePrefix() const { return mIsAvc || mIsHevc || mIsHeic; }
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bool isExifData(MediaBufferBase *buffer, uint32_t *tiffHdrOffset) const;
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void addChunkOffset(off64_t offset);
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void addItemOffsetAndSize(off64_t offset, size_t size, bool isExif);
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void flushItemRefs();
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int32_t getTrackId() const { return mTrackId; }
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status_t dump(int fd, const Vector<String16>& args) const;
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static const char *getFourCCForMime(const char *mime);
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const char *getTrackType() const;
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void resetInternal();
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int64_t trackMetaDataSize();
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private:
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// A helper class to handle faster write box with table entries
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template<class TYPE, unsigned ENTRY_SIZE>
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// ENTRY_SIZE: # of values in each entry
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struct ListTableEntries {
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static_assert(ENTRY_SIZE > 0, "ENTRY_SIZE must be positive");
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ListTableEntries(uint32_t elementCapacity)
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: mElementCapacity(elementCapacity),
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mTotalNumTableEntries(0),
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mNumValuesInCurrEntry(0),
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mCurrTableEntriesElement(NULL) {
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CHECK_GT(mElementCapacity, 0u);
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// Ensure no integer overflow on allocation in add().
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CHECK_LT(ENTRY_SIZE, UINT32_MAX / mElementCapacity);
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}
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// Free the allocated memory.
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~ListTableEntries() {
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while (!mTableEntryList.empty()) {
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typename List<TYPE *>::iterator it = mTableEntryList.begin();
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delete[] (*it);
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mTableEntryList.erase(it);
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}
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}
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// Replace the value at the given position by the given value.
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// There must be an existing value at the given position.
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// @arg value must be in network byte order
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// @arg pos location the value must be in.
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void set(const TYPE& value, uint32_t pos) {
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CHECK_LT(pos, mTotalNumTableEntries * ENTRY_SIZE);
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typename List<TYPE *>::iterator it = mTableEntryList.begin();
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uint32_t iterations = (pos / (mElementCapacity * ENTRY_SIZE));
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while (it != mTableEntryList.end() && iterations > 0) {
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++it;
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--iterations;
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}
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CHECK(it != mTableEntryList.end());
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CHECK_EQ(iterations, 0u);
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(*it)[(pos % (mElementCapacity * ENTRY_SIZE))] = value;
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}
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// Get the value at the given position by the given value.
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// @arg value the retrieved value at the position in network byte order.
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// @arg pos location the value must be in.
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// @return true if a value is found.
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bool get(TYPE& value, uint32_t pos) const {
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if (pos >= mTotalNumTableEntries * ENTRY_SIZE) {
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return false;
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}
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typename List<TYPE *>::iterator it = mTableEntryList.begin();
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uint32_t iterations = (pos / (mElementCapacity * ENTRY_SIZE));
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while (it != mTableEntryList.end() && iterations > 0) {
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++it;
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--iterations;
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}
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CHECK(it != mTableEntryList.end());
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CHECK_EQ(iterations, 0u);
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value = (*it)[(pos % (mElementCapacity * ENTRY_SIZE))];
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return true;
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}
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// adjusts all values by |adjust(value)|
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void adjustEntries(
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std::function<void(size_t /* ix */, TYPE(& /* entry */)[ENTRY_SIZE])> update) {
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size_t nEntries = mTotalNumTableEntries + mNumValuesInCurrEntry / ENTRY_SIZE;
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size_t ix = 0;
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for (TYPE *entryArray : mTableEntryList) {
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size_t num = std::min(nEntries, (size_t)mElementCapacity);
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for (size_t i = 0; i < num; ++i) {
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update(ix++, (TYPE(&)[ENTRY_SIZE])(*entryArray));
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entryArray += ENTRY_SIZE;
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}
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nEntries -= num;
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}
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}
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// Store a single value.
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// @arg value must be in network byte order.
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void add(const TYPE& value) {
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CHECK_LT(mNumValuesInCurrEntry, mElementCapacity);
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uint32_t nEntries = mTotalNumTableEntries % mElementCapacity;
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uint32_t nValues = mNumValuesInCurrEntry % ENTRY_SIZE;
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if (nEntries == 0 && nValues == 0) {
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mCurrTableEntriesElement = new TYPE[ENTRY_SIZE * mElementCapacity];
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CHECK(mCurrTableEntriesElement != NULL);
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mTableEntryList.push_back(mCurrTableEntriesElement);
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}
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uint32_t pos = nEntries * ENTRY_SIZE + nValues;
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mCurrTableEntriesElement[pos] = value;
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++mNumValuesInCurrEntry;
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if ((mNumValuesInCurrEntry % ENTRY_SIZE) == 0) {
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++mTotalNumTableEntries;
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mNumValuesInCurrEntry = 0;
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}
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}
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// Write out the table entries:
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// 1. the number of entries goes first
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// 2. followed by the values in the table enties in order
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// @arg writer the writer to actual write to the storage
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void write(MPEG4Writer *writer) const {
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CHECK_EQ(mNumValuesInCurrEntry % ENTRY_SIZE, 0u);
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uint32_t nEntries = mTotalNumTableEntries;
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writer->writeInt32(nEntries);
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for (typename List<TYPE *>::iterator it = mTableEntryList.begin();
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it != mTableEntryList.end(); ++it) {
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CHECK_GT(nEntries, 0u);
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if (nEntries >= mElementCapacity) {
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writer->write(*it, sizeof(TYPE) * ENTRY_SIZE, mElementCapacity);
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nEntries -= mElementCapacity;
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} else {
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writer->write(*it, sizeof(TYPE) * ENTRY_SIZE, nEntries);
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break;
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}
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}
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}
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// Return the number of entries in the table.
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uint32_t count() const { return mTotalNumTableEntries; }
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private:
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uint32_t mElementCapacity; // # entries in an element
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uint32_t mTotalNumTableEntries;
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uint32_t mNumValuesInCurrEntry; // up to ENTRY_SIZE
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TYPE *mCurrTableEntriesElement;
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mutable List<TYPE *> mTableEntryList;
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DISALLOW_EVIL_CONSTRUCTORS(ListTableEntries);
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};
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MPEG4Writer *mOwner;
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sp<MetaData> mMeta;
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sp<MediaSource> mSource;
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volatile bool mDone;
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volatile bool mPaused;
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volatile bool mResumed;
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volatile bool mStarted;
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bool mIsAvc;
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bool mIsHevc;
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bool mIsAudio;
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bool mIsVideo;
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bool mIsHeic;
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bool mIsMPEG4;
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bool mGotStartKeyFrame;
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bool mIsMalformed;
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int32_t mTrackId;
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int64_t mTrackDurationUs;
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int64_t mMaxChunkDurationUs;
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int64_t mLastDecodingTimeUs;
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int64_t mEstimatedTrackSizeBytes;
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int64_t mMdatSizeBytes;
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int32_t mTimeScale;
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pthread_t mThread;
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List<MediaBuffer *> mChunkSamples;
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bool mSamplesHaveSameSize;
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ListTableEntries<uint32_t, 1> *mStszTableEntries;
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ListTableEntries<off64_t, 1> *mCo64TableEntries;
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ListTableEntries<uint32_t, 3> *mStscTableEntries;
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ListTableEntries<uint32_t, 1> *mStssTableEntries;
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ListTableEntries<uint32_t, 2> *mSttsTableEntries;
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ListTableEntries<uint32_t, 2> *mCttsTableEntries;
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ListTableEntries<uint32_t, 3> *mElstTableEntries; // 3columns: segDuration, mediaTime, mediaRate
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int64_t mMinCttsOffsetTimeUs;
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int64_t mMinCttsOffsetTicks;
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int64_t mMaxCttsOffsetTicks;
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// Save the last 10 frames' timestamp and frame type for debug.
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struct TimestampDebugHelperEntry {
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int64_t pts;
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int64_t dts;
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std::string frameType;
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};
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std::list<TimestampDebugHelperEntry> mTimestampDebugHelper;
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// Sequence parameter set or picture parameter set
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struct AVCParamSet {
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AVCParamSet(uint16_t length, const uint8_t *data)
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: mLength(length), mData(data) {}
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uint16_t mLength;
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const uint8_t *mData;
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};
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List<AVCParamSet> mSeqParamSets;
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List<AVCParamSet> mPicParamSets;
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uint8_t mProfileIdc;
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uint8_t mProfileCompatible;
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uint8_t mLevelIdc;
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void *mCodecSpecificData;
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size_t mCodecSpecificDataSize;
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bool mGotAllCodecSpecificData;
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bool mTrackingProgressStatus;
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bool mReachedEOS;
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int64_t mStartTimestampUs;
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int64_t mStartTimeRealUs;
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int64_t mFirstSampleTimeRealUs;
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// Captures negative start offset of a track(track starttime < 0).
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int64_t mFirstSampleStartOffsetUs;
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int64_t mPreviousTrackTimeUs;
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int64_t mTrackEveryTimeDurationUs;
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int32_t mRotation;
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Vector<uint16_t> mProperties;
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ItemRefs mDimgRefs;
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Vector<uint16_t> mExifList;
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uint16_t mImageItemId;
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uint16_t mItemIdBase;
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int32_t mIsPrimary;
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int32_t mWidth, mHeight;
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int32_t mTileWidth, mTileHeight;
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int32_t mGridRows, mGridCols;
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size_t mNumTiles, mTileIndex;
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// Update the audio track's drift information.
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void updateDriftTime(const sp<MetaData>& meta);
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void dumpTimeStamps();
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int64_t getStartTimeOffsetTimeUs() const;
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int32_t getStartTimeOffsetScaledTime() const;
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static void *ThreadWrapper(void *me);
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status_t threadEntry();
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const uint8_t *parseParamSet(
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const uint8_t *data, size_t length, int type, size_t *paramSetLen);
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status_t copyCodecSpecificData(const uint8_t *data, size_t size, size_t minLength = 0);
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status_t makeAVCCodecSpecificData(const uint8_t *data, size_t size);
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status_t copyAVCCodecSpecificData(const uint8_t *data, size_t size);
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status_t parseAVCCodecSpecificData(const uint8_t *data, size_t size);
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status_t makeHEVCCodecSpecificData(const uint8_t *data, size_t size);
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status_t copyHEVCCodecSpecificData(const uint8_t *data, size_t size);
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status_t parseHEVCCodecSpecificData(
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const uint8_t *data, size_t size, HevcParameterSets ¶mSets);
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// Track authoring progress status
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void trackProgressStatus(int64_t timeUs, status_t err = OK);
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void initTrackingProgressStatus(MetaData *params);
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void getCodecSpecificDataFromInputFormatIfPossible();
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// Determine the track time scale
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// If it is an audio track, try to use the sampling rate as
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// the time scale; however, if user chooses the overwrite
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// value, the user-supplied time scale will be used.
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void setTimeScale();
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// Simple validation on the codec specific data
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status_t checkCodecSpecificData() const;
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void updateTrackSizeEstimate();
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void addOneStscTableEntry(size_t chunkId, size_t sampleId);
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void addOneStssTableEntry(size_t sampleId);
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void addOneSttsTableEntry(size_t sampleCount, int32_t delta /* media time scale based */);
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void addOneCttsTableEntry(size_t sampleCount, int32_t sampleOffset);
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void addOneElstTableEntry(uint32_t segmentDuration, int32_t mediaTime,
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int16_t mediaRate, int16_t mediaRateFraction);
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bool isTrackMalFormed() const;
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void sendTrackSummary(bool hasMultipleTracks);
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// Write the boxes
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void writeCo64Box();
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void writeStscBox();
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void writeStszBox();
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void writeStssBox();
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void writeSttsBox();
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void writeCttsBox();
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void writeD263Box();
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void writePaspBox();
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void writeAvccBox();
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void writeHvccBox();
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void writeUrlBox();
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void writeDrefBox();
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void writeDinfBox();
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void writeDamrBox();
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void writeMdhdBox(uint32_t now);
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void writeSmhdBox();
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void writeVmhdBox();
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void writeNmhdBox();
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void writeHdlrBox();
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void writeTkhdBox(uint32_t now);
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void writeColrBox();
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void writeMp4aEsdsBox();
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void writeMp4vEsdsBox();
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void writeAudioFourCCBox();
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void writeVideoFourCCBox();
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void writeMetadataFourCCBox();
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void writeStblBox();
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void writeEdtsBox();
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Track(const Track &);
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Track &operator=(const Track &);
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};
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MPEG4Writer::MPEG4Writer(int fd) {
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initInternal(dup(fd), true /*isFirstSession*/);
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}
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MPEG4Writer::~MPEG4Writer() {
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reset();
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while (!mTracks.empty()) {
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List<Track *>::iterator it = mTracks.begin();
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delete *it;
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(*it) = NULL;
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mTracks.erase(it);
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}
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mTracks.clear();
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if (mNextFd != -1) {
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close(mNextFd);
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}
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}
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void MPEG4Writer::initInternal(int fd, bool isFirstSession) {
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ALOGV("initInternal");
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mFd = fd;
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mNextFd = -1;
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mInitCheck = mFd < 0? NO_INIT: OK;
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mInterleaveDurationUs = 1000000;
|
|
|
|
mStartTimestampUs = -1LL;
|
|
mStartTimeOffsetMs = -1;
|
|
mStartTimeOffsetBFramesUs = 0;
|
|
mPaused = false;
|
|
mStarted = false;
|
|
mWriterThreadStarted = false;
|
|
mSendNotify = false;
|
|
mWriteSeekErr = false;
|
|
mFallocateErr = false;
|
|
|
|
// Reset following variables for all the sessions and they will be
|
|
// initialized in start(MetaData *param).
|
|
mIsRealTimeRecording = true;
|
|
mUse4ByteNalLength = true;
|
|
mOffset = 0;
|
|
mPreAllocateFileEndOffset = 0;
|
|
mMdatOffset = 0;
|
|
mMdatEndOffset = 0;
|
|
mInMemoryCache = NULL;
|
|
mInMemoryCacheOffset = 0;
|
|
mInMemoryCacheSize = 0;
|
|
mWriteBoxToMemory = false;
|
|
mFreeBoxOffset = 0;
|
|
mStreamableFile = false;
|
|
mTimeScale = -1;
|
|
mHasFileLevelMeta = false;
|
|
mFileLevelMetaDataSize = 0;
|
|
mPrimaryItemId = 0;
|
|
mAssociationEntryCount = 0;
|
|
mNumGrids = 0;
|
|
mNextItemId = kItemIdBase;
|
|
mHasRefs = false;
|
|
mPreAllocFirstTime = true;
|
|
mPrevAllTracksTotalMetaDataSizeEstimate = 0;
|
|
|
|
// Following variables only need to be set for the first recording session.
|
|
// And they will stay the same for all the recording sessions.
|
|
if (isFirstSession) {
|
|
mMoovExtraSize = 0;
|
|
mHasMoovBox = false;
|
|
mMetaKeys = new AMessage();
|
|
addDeviceMeta();
|
|
mLatitudex10000 = 0;
|
|
mLongitudex10000 = 0;
|
|
mAreGeoTagsAvailable = false;
|
|
mSwitchPending = false;
|
|
mIsFileSizeLimitExplicitlyRequested = false;
|
|
}
|
|
|
|
// Verify mFd is seekable
|
|
off64_t off = lseek64(mFd, 0, SEEK_SET);
|
|
if (off < 0) {
|
|
ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd);
|
|
release();
|
|
}
|
|
|
|
if (fallocate(mFd, 0, 0, 1) == 0) {
|
|
ALOGD("PreAllocation enabled");
|
|
mPreAllocationEnabled = true;
|
|
} else {
|
|
ALOGD("PreAllocation disabled. fallocate : %s, %d", strerror(errno), errno);
|
|
mPreAllocationEnabled = false;
|
|
}
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
(*it)->resetInternal();
|
|
}
|
|
}
|
|
|
|
status_t MPEG4Writer::dump(
|
|
int fd, const Vector<String16>& args) {
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
snprintf(buffer, SIZE, " MPEG4Writer %p\n", this);
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, " mStarted: %s\n", mStarted? "true": "false");
|
|
result.append(buffer);
|
|
::write(fd, result.string(), result.size());
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
(*it)->dump(fd, args);
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::dump(
|
|
int fd, const Vector<String16>& /* args */) const {
|
|
const size_t SIZE = 256;
|
|
char buffer[SIZE];
|
|
String8 result;
|
|
snprintf(buffer, SIZE, " %s track\n", getTrackType());
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, " reached EOS: %s\n",
|
|
mReachedEOS? "true": "false");
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, " frames encoded : %d\n", mStszTableEntries->count());
|
|
result.append(buffer);
|
|
snprintf(buffer, SIZE, " duration encoded : %" PRId64 " us\n", mTrackDurationUs);
|
|
result.append(buffer);
|
|
::write(fd, result.string(), result.size());
|
|
return OK;
|
|
}
|
|
|
|
// static
|
|
const char *MPEG4Writer::Track::getFourCCForMime(const char *mime) {
|
|
if (mime == NULL) {
|
|
return NULL;
|
|
}
|
|
if (!strncasecmp(mime, "audio/", 6)) {
|
|
if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime)) {
|
|
return "samr";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) {
|
|
return "sawb";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime)) {
|
|
return "mp4a";
|
|
}
|
|
} else if (!strncasecmp(mime, "video/", 6)) {
|
|
if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
|
|
return "mp4v";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
|
|
return "s263";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) {
|
|
return "avc1";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
|
|
return "hvc1";
|
|
}
|
|
} else if (!strncasecmp(mime, "application/", 12)) {
|
|
return "mett";
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, mime)) {
|
|
return "heic";
|
|
} else {
|
|
ALOGE("Track (%s) other than video/audio/metadata is not supported", mime);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
status_t MPEG4Writer::addSource(const sp<MediaSource> &source) {
|
|
Mutex::Autolock l(mLock);
|
|
if (mStarted) {
|
|
ALOGE("Attempt to add source AFTER recording is started");
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
|
|
CHECK(source.get() != NULL);
|
|
|
|
const char *mime = NULL;
|
|
sp<MetaData> meta = source->getFormat();
|
|
meta->findCString(kKeyMIMEType, &mime);
|
|
|
|
if (Track::getFourCCForMime(mime) == NULL) {
|
|
ALOGE("Unsupported mime '%s'", mime);
|
|
return ERROR_UNSUPPORTED;
|
|
}
|
|
|
|
// This is a metadata track or the first track of either audio or video
|
|
// Go ahead to add the track.
|
|
Track *track = new Track(this, source, 1 + mTracks.size());
|
|
mTracks.push_back(track);
|
|
|
|
mHasMoovBox |= !track->isHeic();
|
|
mHasFileLevelMeta |= track->isHeic();
|
|
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::startTracks(MetaData *params) {
|
|
if (mTracks.empty()) {
|
|
ALOGE("No source added");
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
status_t err = (*it)->start(params);
|
|
|
|
if (err != OK) {
|
|
for (List<Track *>::iterator it2 = mTracks.begin();
|
|
it2 != it; ++it2) {
|
|
(*it2)->stop();
|
|
}
|
|
|
|
return err;
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
void MPEG4Writer::addDeviceMeta() {
|
|
// add device info and estimate space in 'moov'
|
|
char val[PROPERTY_VALUE_MAX];
|
|
size_t n;
|
|
// meta size is estimated by adding up the following:
|
|
// - meta header structures, which occur only once (total 66 bytes)
|
|
// - size for each key, which consists of a fixed header (32 bytes),
|
|
// plus key length and data length.
|
|
mMoovExtraSize += 66;
|
|
if (property_get("ro.build.version.release", val, NULL)
|
|
&& (n = strlen(val)) > 0) {
|
|
mMetaKeys->setString(kMetaKey_Version, val, n + 1);
|
|
mMoovExtraSize += sizeof(kMetaKey_Version) + n + 32;
|
|
}
|
|
|
|
if (property_get_bool("media.recorder.show_manufacturer_and_model", false)) {
|
|
if (property_get("ro.product.manufacturer", val, NULL)
|
|
&& (n = strlen(val)) > 0) {
|
|
mMetaKeys->setString(kMetaKey_Manufacturer, val, n + 1);
|
|
mMoovExtraSize += sizeof(kMetaKey_Manufacturer) + n + 32;
|
|
}
|
|
if (property_get("ro.product.model", val, NULL)
|
|
&& (n = strlen(val)) > 0) {
|
|
mMetaKeys->setString(kMetaKey_Model, val, n + 1);
|
|
mMoovExtraSize += sizeof(kMetaKey_Model) + n + 32;
|
|
}
|
|
}
|
|
#ifdef SHOW_MODEL_BUILD
|
|
if (property_get("ro.build.display.id", val, NULL)
|
|
&& (n = strlen(val)) > 0) {
|
|
mMetaKeys->setString(kMetaKey_Build, val, n + 1);
|
|
mMoovExtraSize += sizeof(kMetaKey_Build) + n + 32;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
int64_t MPEG4Writer::estimateFileLevelMetaSize(MetaData *params) {
|
|
int32_t rotation;
|
|
if (!params || !params->findInt32(kKeyRotation, &rotation)) {
|
|
rotation = 0;
|
|
}
|
|
|
|
// base meta size
|
|
int64_t metaSize = 12 // meta fullbox header
|
|
+ 33 // hdlr box
|
|
+ 14 // pitm box
|
|
+ 16 // iloc box (fixed size portion)
|
|
+ 14 // iinf box (fixed size portion)
|
|
+ 32 // iprp box (fixed size protion)
|
|
+ 8 // idat box (when empty)
|
|
+ 12 // iref box (when empty)
|
|
;
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if ((*it)->isHeic()) {
|
|
metaSize += (*it)->getMetaSizeIncrease(rotation, mTracks.size());
|
|
}
|
|
}
|
|
|
|
ALOGV("estimated meta size: %lld", (long long) metaSize);
|
|
|
|
// Need at least 8-byte padding at the end, otherwise the left-over
|
|
// freebox may become malformed
|
|
return metaSize + 8;
|
|
}
|
|
|
|
int64_t MPEG4Writer::estimateMoovBoxSize(int32_t bitRate) {
|
|
// This implementation is highly experimental/heurisitic.
|
|
//
|
|
// Statistical analysis shows that metadata usually accounts
|
|
// for a small portion of the total file size, usually < 0.6%.
|
|
|
|
// The default MIN_MOOV_BOX_SIZE is set to 0.6% x 1MB / 2,
|
|
// where 1MB is the common file size limit for MMS application.
|
|
// The default MAX _MOOV_BOX_SIZE value is based on about 3
|
|
// minute video recording with a bit rate about 3 Mbps, because
|
|
// statistics also show that most of the video captured are going
|
|
// to be less than 3 minutes.
|
|
|
|
// If the estimation is wrong, we will pay the price of wasting
|
|
// some reserved space. This should not happen so often statistically.
|
|
static const int64_t MIN_MOOV_BOX_SIZE = 3 * 1024; // 3 KibiBytes
|
|
static const int64_t MAX_MOOV_BOX_SIZE = (180 * 3000000 * 6LL / 8000); // 395.5 KibiBytes
|
|
int64_t size = MIN_MOOV_BOX_SIZE;
|
|
|
|
// Max file size limit is set
|
|
if (mMaxFileSizeLimitBytes != 0 && mIsFileSizeLimitExplicitlyRequested) {
|
|
size = mMaxFileSizeLimitBytes * 6 / 1000;
|
|
}
|
|
|
|
// Max file duration limit is set
|
|
if (mMaxFileDurationLimitUs != 0) {
|
|
if (bitRate > 0) {
|
|
int64_t size2 =
|
|
((mMaxFileDurationLimitUs / 1000) * bitRate * 6) / 8000000;
|
|
if (mMaxFileSizeLimitBytes != 0 && mIsFileSizeLimitExplicitlyRequested) {
|
|
// When both file size and duration limits are set,
|
|
// we use the smaller limit of the two.
|
|
if (size > size2) {
|
|
size = size2;
|
|
}
|
|
} else {
|
|
// Only max file duration limit is set
|
|
size = size2;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (size < MIN_MOOV_BOX_SIZE) {
|
|
size = MIN_MOOV_BOX_SIZE;
|
|
}
|
|
|
|
// Any long duration recording will be probably end up with
|
|
// non-streamable mp4 file.
|
|
if (size > MAX_MOOV_BOX_SIZE) {
|
|
size = MAX_MOOV_BOX_SIZE;
|
|
}
|
|
|
|
// Account for the extra stuff (Geo, meta keys, etc.)
|
|
size += mMoovExtraSize;
|
|
|
|
ALOGI("limits: %" PRId64 "/%" PRId64 " bytes/us, bit rate: %d bps and the"
|
|
" estimated moov size %" PRId64 " bytes",
|
|
mMaxFileSizeLimitBytes, mMaxFileDurationLimitUs, bitRate, size);
|
|
|
|
return size;
|
|
}
|
|
|
|
status_t MPEG4Writer::start(MetaData *param) {
|
|
if (mInitCheck != OK) {
|
|
return UNKNOWN_ERROR;
|
|
}
|
|
mStartMeta = param;
|
|
|
|
/*
|
|
* Check mMaxFileSizeLimitBytes at the beginning since mMaxFileSizeLimitBytes may be implicitly
|
|
* changed later as per filesizebits of filesystem even if user does not set it explicitly.
|
|
*/
|
|
if (mMaxFileSizeLimitBytes != 0) {
|
|
mIsFileSizeLimitExplicitlyRequested = true;
|
|
}
|
|
|
|
int32_t fileSizeBits = fpathconf(mFd, _PC_FILESIZEBITS);
|
|
ALOGD("fpathconf _PC_FILESIZEBITS:%" PRId32, fileSizeBits);
|
|
fileSizeBits = std::min(fileSizeBits, 52 /* cap it below 4 peta bytes */);
|
|
int64_t maxFileSizeBytes = ((int64_t)1 << fileSizeBits) - 1;
|
|
if (mMaxFileSizeLimitBytes > maxFileSizeBytes) {
|
|
mMaxFileSizeLimitBytes = maxFileSizeBytes;
|
|
ALOGD("File size limit (%" PRId64 " bytes) too big. It is changed to %" PRId64 " bytes",
|
|
mMaxFileSizeLimitBytes, maxFileSizeBytes);
|
|
} else if (mMaxFileSizeLimitBytes == 0) {
|
|
mMaxFileSizeLimitBytes = maxFileSizeBytes;
|
|
ALOGD("File size limit set to %" PRId64 " bytes implicitly", maxFileSizeBytes);
|
|
}
|
|
|
|
int32_t use2ByteNalLength;
|
|
if (param &&
|
|
param->findInt32(kKey2ByteNalLength, &use2ByteNalLength) &&
|
|
use2ByteNalLength) {
|
|
mUse4ByteNalLength = false;
|
|
}
|
|
|
|
int32_t isRealTimeRecording;
|
|
if (param && param->findInt32(kKeyRealTimeRecording, &isRealTimeRecording)) {
|
|
mIsRealTimeRecording = isRealTimeRecording;
|
|
}
|
|
|
|
mStartTimestampUs = -1;
|
|
|
|
if (mStarted) {
|
|
if (mPaused) {
|
|
mPaused = false;
|
|
return startTracks(param);
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
if (!param ||
|
|
!param->findInt32(kKeyTimeScale, &mTimeScale)) {
|
|
// Increased by a factor of 10 to improve precision of segment duration in edit list entry.
|
|
mTimeScale = 10000;
|
|
}
|
|
CHECK_GT(mTimeScale, 0);
|
|
ALOGV("movie time scale: %d", mTimeScale);
|
|
|
|
/*
|
|
* When the requested file size limit is small, the priority
|
|
* is to meet the file size limit requirement, rather than
|
|
* to make the file streamable. mStreamableFile does not tell
|
|
* whether the actual recorded file is streamable or not.
|
|
*/
|
|
mStreamableFile =
|
|
(mMaxFileSizeLimitBytes != 0 &&
|
|
mMaxFileSizeLimitBytes >= kMinStreamableFileSizeInBytes);
|
|
|
|
/*
|
|
* mWriteBoxToMemory is true if the amount of data in a file-level meta or
|
|
* moov box is smaller than the reserved free space at the beginning of a
|
|
* file, AND when the content of the box is constructed. Note that video/
|
|
* audio frame data is always written to the file but not in the memory.
|
|
*
|
|
* Before stop()/reset() is called, mWriteBoxToMemory is always
|
|
* false. When reset() is called at the end of a recording session,
|
|
* file-level meta and/or moov box needs to be constructed.
|
|
*
|
|
* 1) Right before the box is constructed, mWriteBoxToMemory to set to
|
|
* mStreamableFile so that if the file is intended to be streamable, it
|
|
* is set to true; otherwise, it is set to false. When the value is set
|
|
* to false, all the content of that box is written immediately to
|
|
* the end of the file. When the value is set to true, all the
|
|
* content of that box is written to an in-memory cache,
|
|
* mInMemoryCache, util the following condition happens. Note
|
|
* that the size of the in-memory cache is the same as the
|
|
* reserved free space at the beginning of the file.
|
|
*
|
|
* 2) While the data of the box is written to an in-memory
|
|
* cache, the data size is checked against the reserved space.
|
|
* If the data size surpasses the reserved space, subsequent box data
|
|
* could no longer be hold in the in-memory cache. This also
|
|
* indicates that the reserved space was too small. At this point,
|
|
* _all_ subsequent box data must be written to the end of the file.
|
|
* mWriteBoxToMemory must be set to false to direct the write
|
|
* to the file.
|
|
*
|
|
* 3) If the data size in the box is smaller than the reserved
|
|
* space after the box is completely constructed, the in-memory
|
|
* cache copy of the box is written to the reserved free space.
|
|
* mWriteBoxToMemory is always set to false after all boxes that
|
|
* using the in-memory cache have been constructed.
|
|
*/
|
|
mWriteBoxToMemory = false;
|
|
mInMemoryCache = NULL;
|
|
mInMemoryCacheOffset = 0;
|
|
|
|
|
|
ALOGV("muxer starting: mHasMoovBox %d, mHasFileLevelMeta %d",
|
|
mHasMoovBox, mHasFileLevelMeta);
|
|
|
|
writeFtypBox(param);
|
|
|
|
mFreeBoxOffset = mOffset;
|
|
|
|
if (mInMemoryCacheSize == 0) {
|
|
int32_t bitRate = -1;
|
|
if (mHasFileLevelMeta) {
|
|
mFileLevelMetaDataSize = estimateFileLevelMetaSize(param);
|
|
mInMemoryCacheSize += mFileLevelMetaDataSize;
|
|
}
|
|
if (mHasMoovBox) {
|
|
if (param) {
|
|
param->findInt32(kKeyBitRate, &bitRate);
|
|
}
|
|
mInMemoryCacheSize += estimateMoovBoxSize(bitRate);
|
|
}
|
|
}
|
|
if (mStreamableFile) {
|
|
// Reserve a 'free' box only for streamable file
|
|
seekOrPostError(mFd, mFreeBoxOffset, SEEK_SET);
|
|
writeInt32(mInMemoryCacheSize);
|
|
write("free", 4);
|
|
mMdatOffset = mFreeBoxOffset + mInMemoryCacheSize;
|
|
} else {
|
|
mMdatOffset = mOffset;
|
|
}
|
|
|
|
mOffset = mMdatOffset;
|
|
seekOrPostError(mFd, mMdatOffset, SEEK_SET);
|
|
write("\x00\x00\x00\x01mdat????????", 16);
|
|
|
|
status_t err = startWriterThread();
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
setupAndStartLooper();
|
|
|
|
err = startTracks(param);
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
mStarted = true;
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::pause() {
|
|
ALOGW("MPEG4Writer: pause is not supported");
|
|
return ERROR_UNSUPPORTED;
|
|
}
|
|
|
|
status_t MPEG4Writer::stopWriterThread() {
|
|
ALOGV("Stopping writer thread");
|
|
if (!mWriterThreadStarted) {
|
|
return OK;
|
|
}
|
|
{
|
|
Mutex::Autolock autolock(mLock);
|
|
mDone = true;
|
|
mChunkReadyCondition.signal();
|
|
}
|
|
|
|
void *dummy;
|
|
status_t err = pthread_join(mThread, &dummy);
|
|
WARN_UNLESS(err == 0, "stopWriterThread pthread_join err: %d", err);
|
|
|
|
err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
|
|
mWriterThreadStarted = false;
|
|
WARN_UNLESS(err == 0, "stopWriterThread pthread_join retVal: %d, writer thread stopped", err);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* MP4 file standard defines a composition matrix:
|
|
* | a b u |
|
|
* | c d v |
|
|
* | x y w |
|
|
*
|
|
* the element in the matrix is stored in the following
|
|
* order: {a, b, u, c, d, v, x, y, w},
|
|
* where a, b, c, d, x, and y is in 16.16 format, while
|
|
* u, v and w is in 2.30 format.
|
|
*/
|
|
void MPEG4Writer::writeCompositionMatrix(int degrees) {
|
|
ALOGV("writeCompositionMatrix");
|
|
uint32_t a = 0x00010000;
|
|
uint32_t b = 0;
|
|
uint32_t c = 0;
|
|
uint32_t d = 0x00010000;
|
|
switch (degrees) {
|
|
case 0:
|
|
break;
|
|
case 90:
|
|
a = 0;
|
|
b = 0x00010000;
|
|
c = 0xFFFF0000;
|
|
d = 0;
|
|
break;
|
|
case 180:
|
|
a = 0xFFFF0000;
|
|
d = 0xFFFF0000;
|
|
break;
|
|
case 270:
|
|
a = 0;
|
|
b = 0xFFFF0000;
|
|
c = 0x00010000;
|
|
d = 0;
|
|
break;
|
|
default:
|
|
CHECK(!"Should never reach this unknown rotation");
|
|
break;
|
|
}
|
|
|
|
writeInt32(a); // a
|
|
writeInt32(b); // b
|
|
writeInt32(0); // u
|
|
writeInt32(c); // c
|
|
writeInt32(d); // d
|
|
writeInt32(0); // v
|
|
writeInt32(0); // x
|
|
writeInt32(0); // y
|
|
writeInt32(0x40000000); // w
|
|
}
|
|
|
|
void MPEG4Writer::release() {
|
|
ALOGD("release()");
|
|
if (mPreAllocationEnabled) {
|
|
truncatePreAllocation();
|
|
}
|
|
int retVal = fsync(mFd);
|
|
WARN_UNLESS(retVal == 0, "fsync retVal:%d", retVal);
|
|
retVal = close(mFd);
|
|
WARN_UNLESS(retVal == 0, "close mFd retVal :%d", retVal);
|
|
mFd = -1;
|
|
if (mNextFd != -1) {
|
|
retVal = close(mNextFd);
|
|
mNextFd = -1;
|
|
WARN_UNLESS(retVal == 0, "close mNextFd retVal :%d", retVal);
|
|
}
|
|
stopAndReleaseLooper();
|
|
mInitCheck = NO_INIT;
|
|
mStarted = false;
|
|
free(mInMemoryCache);
|
|
mInMemoryCache = NULL;
|
|
}
|
|
|
|
void MPEG4Writer::finishCurrentSession() {
|
|
reset(false /* stopSource */);
|
|
}
|
|
|
|
status_t MPEG4Writer::switchFd() {
|
|
ALOGV("switchFd");
|
|
Mutex::Autolock l(mLock);
|
|
if (mSwitchPending) {
|
|
return OK;
|
|
}
|
|
|
|
if (mNextFd == -1) {
|
|
ALOGW("No FileDescripter for next recording");
|
|
return INVALID_OPERATION;
|
|
}
|
|
|
|
mSwitchPending = true;
|
|
sp<AMessage> msg = new AMessage(kWhatSwitch, mReflector);
|
|
status_t err = msg->post();
|
|
|
|
return err;
|
|
}
|
|
|
|
status_t MPEG4Writer::reset(bool stopSource) {
|
|
ALOGD("reset()");
|
|
std::lock_guard<std::mutex> l(mResetMutex);
|
|
if (mInitCheck != OK) {
|
|
return OK;
|
|
} else {
|
|
if (!mWriterThreadStarted ||
|
|
!mStarted) {
|
|
status_t err = OK;
|
|
if (mWriterThreadStarted) {
|
|
err = stopWriterThread();
|
|
}
|
|
release();
|
|
return err;
|
|
}
|
|
}
|
|
|
|
status_t err = OK;
|
|
int64_t maxDurationUs = 0;
|
|
int64_t minDurationUs = 0x7fffffffffffffffLL;
|
|
int32_t nonImageTrackCount = 0;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
status_t trackErr = (*it)->stop(stopSource);
|
|
if (err == OK && trackErr != OK) {
|
|
ALOGW("%s track stopped with an error", (*it)->getTrackType());
|
|
err = trackErr;
|
|
}
|
|
|
|
// skip image tracks
|
|
if ((*it)->isHeic()) continue;
|
|
nonImageTrackCount++;
|
|
|
|
int64_t durationUs = (*it)->getDurationUs();
|
|
if (durationUs > maxDurationUs) {
|
|
maxDurationUs = durationUs;
|
|
}
|
|
if (durationUs < minDurationUs) {
|
|
minDurationUs = durationUs;
|
|
}
|
|
}
|
|
|
|
|
|
if (nonImageTrackCount > 1) {
|
|
ALOGD("Duration from tracks range is [%" PRId64 ", %" PRId64 "] us",
|
|
minDurationUs, maxDurationUs);
|
|
}
|
|
|
|
status_t writerErr = stopWriterThread();
|
|
|
|
// TODO: which error to propagage, writerErr or trackErr?
|
|
if (err == OK && writerErr != OK) {
|
|
err = writerErr;
|
|
}
|
|
|
|
// Do not write out movie header on error except malformed track.
|
|
if (err != OK && err != ERROR_MALFORMED) {
|
|
release();
|
|
return err;
|
|
}
|
|
|
|
// Fix up the size of the 'mdat' chunk.
|
|
seekOrPostError(mFd, mMdatOffset + 8, SEEK_SET);
|
|
uint64_t size = mOffset - mMdatOffset;
|
|
size = hton64(size);
|
|
writeOrPostError(mFd, &size, 8);
|
|
seekOrPostError(mFd, mOffset, SEEK_SET);
|
|
mMdatEndOffset = mOffset;
|
|
|
|
// Construct file-level meta and moov box now
|
|
mInMemoryCacheOffset = 0;
|
|
mWriteBoxToMemory = mStreamableFile;
|
|
if (mWriteBoxToMemory) {
|
|
// There is no need to allocate in-memory cache
|
|
// if the file is not streamable.
|
|
|
|
mInMemoryCache = (uint8_t *) malloc(mInMemoryCacheSize);
|
|
CHECK(mInMemoryCache != NULL);
|
|
}
|
|
|
|
if (mHasFileLevelMeta) {
|
|
writeFileLevelMetaBox();
|
|
if (mWriteBoxToMemory) {
|
|
writeCachedBoxToFile("meta");
|
|
} else {
|
|
ALOGI("The file meta box is written at the end.");
|
|
}
|
|
}
|
|
|
|
if (mHasMoovBox) {
|
|
writeMoovBox(maxDurationUs);
|
|
// mWriteBoxToMemory could be set to false in
|
|
// MPEG4Writer::write() method
|
|
if (mWriteBoxToMemory) {
|
|
writeCachedBoxToFile("moov");
|
|
} else {
|
|
ALOGI("The mp4 file will not be streamable.");
|
|
}
|
|
}
|
|
mWriteBoxToMemory = false;
|
|
|
|
// Free in-memory cache for box writing
|
|
if (mInMemoryCache != NULL) {
|
|
free(mInMemoryCache);
|
|
mInMemoryCache = NULL;
|
|
mInMemoryCacheOffset = 0;
|
|
}
|
|
|
|
CHECK(mBoxes.empty());
|
|
|
|
release();
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Writes currently cached box into file.
|
|
*
|
|
* Must be called while mWriteBoxToMemory is true, and will not modify
|
|
* mWriteBoxToMemory. After the call, remaining cache size will be
|
|
* reduced and buffer offset will be set to the beginning of the cache.
|
|
*/
|
|
void MPEG4Writer::writeCachedBoxToFile(const char *type) {
|
|
CHECK(mWriteBoxToMemory);
|
|
|
|
mWriteBoxToMemory = false;
|
|
// Content of the box is saved in the cache, and the in-memory
|
|
// box needs to be written to the file in a single shot.
|
|
|
|
CHECK_LE(mInMemoryCacheOffset + 8, mInMemoryCacheSize);
|
|
|
|
// Cached box
|
|
seekOrPostError(mFd, mFreeBoxOffset, SEEK_SET);
|
|
mOffset = mFreeBoxOffset;
|
|
write(mInMemoryCache, 1, mInMemoryCacheOffset);
|
|
|
|
// Free box
|
|
seekOrPostError(mFd, mOffset, SEEK_SET);
|
|
mFreeBoxOffset = mOffset;
|
|
writeInt32(mInMemoryCacheSize - mInMemoryCacheOffset);
|
|
write("free", 4);
|
|
|
|
// Rewind buffering to the beginning, and restore mWriteBoxToMemory flag
|
|
mInMemoryCacheSize -= mInMemoryCacheOffset;
|
|
mInMemoryCacheOffset = 0;
|
|
mWriteBoxToMemory = true;
|
|
|
|
ALOGV("dumped out %s box, estimated size remaining %lld",
|
|
type, (long long)mInMemoryCacheSize);
|
|
}
|
|
|
|
uint32_t MPEG4Writer::getMpeg4Time() {
|
|
time_t now = time(NULL);
|
|
// MP4 file uses time counting seconds since midnight, Jan. 1, 1904
|
|
// while time function returns Unix epoch values which starts
|
|
// at 1970-01-01. Lets add the number of seconds between them
|
|
static const uint32_t delta = (66 * 365 + 17) * (24 * 60 * 60);
|
|
if (now < 0 || uint32_t(now) > UINT32_MAX - delta) {
|
|
return 0;
|
|
}
|
|
uint32_t mpeg4Time = uint32_t(now) + delta;
|
|
return mpeg4Time;
|
|
}
|
|
|
|
void MPEG4Writer::writeMvhdBox(int64_t durationUs) {
|
|
uint32_t now = getMpeg4Time();
|
|
beginBox("mvhd");
|
|
writeInt32(0); // version=0, flags=0
|
|
writeInt32(now); // creation time
|
|
writeInt32(now); // modification time
|
|
writeInt32(mTimeScale); // mvhd timescale
|
|
int32_t duration = (durationUs * mTimeScale + 5E5) / 1E6;
|
|
writeInt32(duration);
|
|
writeInt32(0x10000); // rate: 1.0
|
|
writeInt16(0x100); // volume
|
|
writeInt16(0); // reserved
|
|
writeInt32(0); // reserved
|
|
writeInt32(0); // reserved
|
|
writeCompositionMatrix(0); // matrix
|
|
writeInt32(0); // predefined
|
|
writeInt32(0); // predefined
|
|
writeInt32(0); // predefined
|
|
writeInt32(0); // predefined
|
|
writeInt32(0); // predefined
|
|
writeInt32(0); // predefined
|
|
writeInt32(mTracks.size() + 1); // nextTrackID
|
|
endBox(); // mvhd
|
|
}
|
|
|
|
void MPEG4Writer::writeMoovBox(int64_t durationUs) {
|
|
beginBox("moov");
|
|
writeMvhdBox(durationUs);
|
|
if (mAreGeoTagsAvailable) {
|
|
writeUdtaBox();
|
|
}
|
|
writeMoovLevelMetaBox();
|
|
// Loop through all the tracks to get the global time offset if there is
|
|
// any ctts table appears in a video track.
|
|
int64_t minCttsOffsetTimeUs = kMaxCttsOffsetTimeUs;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if (!(*it)->isHeic()) {
|
|
minCttsOffsetTimeUs =
|
|
std::min(minCttsOffsetTimeUs, (*it)->getMinCttsOffsetTimeUs());
|
|
}
|
|
}
|
|
ALOGI("Adjust the moov start time from %lld us -> %lld us", (long long)mStartTimestampUs,
|
|
(long long)(mStartTimestampUs + minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs));
|
|
// Adjust movie start time.
|
|
mStartTimestampUs += minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs;
|
|
|
|
// Add mStartTimeOffsetBFramesUs(-ve or zero) to the start offset of tracks.
|
|
mStartTimeOffsetBFramesUs = minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs;
|
|
ALOGV("mStartTimeOffsetBFramesUs :%" PRId32, mStartTimeOffsetBFramesUs);
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if (!(*it)->isHeic()) {
|
|
(*it)->writeTrackHeader();
|
|
}
|
|
}
|
|
endBox(); // moov
|
|
}
|
|
|
|
void MPEG4Writer::writeFtypBox(MetaData *param) {
|
|
beginBox("ftyp");
|
|
|
|
int32_t fileType;
|
|
if (!param || !param->findInt32(kKeyFileType, &fileType)) {
|
|
fileType = OUTPUT_FORMAT_MPEG_4;
|
|
}
|
|
if (fileType != OUTPUT_FORMAT_MPEG_4 && fileType != OUTPUT_FORMAT_HEIF) {
|
|
writeFourcc("3gp4");
|
|
writeInt32(0);
|
|
writeFourcc("isom");
|
|
writeFourcc("3gp4");
|
|
} else {
|
|
// Only write "heic" as major brand if the client specified HEIF
|
|
// AND we indeed receive some image heic tracks.
|
|
if (fileType == OUTPUT_FORMAT_HEIF && mHasFileLevelMeta) {
|
|
writeFourcc("heic");
|
|
} else {
|
|
writeFourcc("mp42");
|
|
}
|
|
writeInt32(0);
|
|
if (mHasFileLevelMeta) {
|
|
writeFourcc("mif1");
|
|
writeFourcc("heic");
|
|
}
|
|
if (mHasMoovBox) {
|
|
writeFourcc("isom");
|
|
writeFourcc("mp42");
|
|
}
|
|
}
|
|
|
|
endBox();
|
|
}
|
|
|
|
static bool isTestModeEnabled() {
|
|
#if (PROPERTY_VALUE_MAX < 5)
|
|
#error "PROPERTY_VALUE_MAX must be at least 5"
|
|
#endif
|
|
|
|
// Test mode is enabled only if rw.media.record.test system
|
|
// property is enabled.
|
|
if (property_get_bool("rw.media.record.test", false)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void MPEG4Writer::sendSessionSummary() {
|
|
// Send session summary only if test mode is enabled
|
|
if (!isTestModeEnabled()) {
|
|
return;
|
|
}
|
|
|
|
for (List<ChunkInfo>::iterator it = mChunkInfos.begin();
|
|
it != mChunkInfos.end(); ++it) {
|
|
int trackNum = it->mTrack->getTrackId() << 28;
|
|
notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS,
|
|
it->mMaxInterChunkDurUs);
|
|
}
|
|
}
|
|
|
|
status_t MPEG4Writer::setInterleaveDuration(uint32_t durationUs) {
|
|
mInterleaveDurationUs = durationUs;
|
|
return OK;
|
|
}
|
|
|
|
void MPEG4Writer::lock() {
|
|
mLock.lock();
|
|
}
|
|
|
|
void MPEG4Writer::unlock() {
|
|
mLock.unlock();
|
|
}
|
|
|
|
off64_t MPEG4Writer::addSample_l(
|
|
MediaBuffer *buffer, bool usePrefix,
|
|
uint32_t tiffHdrOffset, size_t *bytesWritten) {
|
|
off64_t old_offset = mOffset;
|
|
|
|
if (usePrefix) {
|
|
addMultipleLengthPrefixedSamples_l(buffer);
|
|
} else {
|
|
if (tiffHdrOffset > 0) {
|
|
tiffHdrOffset = htonl(tiffHdrOffset);
|
|
writeOrPostError(mFd, &tiffHdrOffset, 4); // exif_tiff_header_offset field
|
|
mOffset += 4;
|
|
}
|
|
|
|
writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(),
|
|
buffer->range_length());
|
|
|
|
mOffset += buffer->range_length();
|
|
}
|
|
*bytesWritten = mOffset - old_offset;
|
|
return old_offset;
|
|
}
|
|
|
|
static void StripStartcode(MediaBuffer *buffer) {
|
|
if (buffer->range_length() < 4) {
|
|
return;
|
|
}
|
|
|
|
const uint8_t *ptr =
|
|
(const uint8_t *)buffer->data() + buffer->range_offset();
|
|
|
|
if (!memcmp(ptr, "\x00\x00\x00\x01", 4)) {
|
|
buffer->set_range(
|
|
buffer->range_offset() + 4, buffer->range_length() - 4);
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer) {
|
|
const uint8_t *dataStart = (const uint8_t *)buffer->data() + buffer->range_offset();
|
|
const uint8_t *currentNalStart = dataStart;
|
|
const uint8_t *nextNalStart;
|
|
const uint8_t *data = dataStart;
|
|
size_t nextNalSize;
|
|
size_t searchSize = buffer->range_length();
|
|
|
|
while (getNextNALUnit(&data, &searchSize, &nextNalStart,
|
|
&nextNalSize, true) == OK) {
|
|
size_t currentNalSize = nextNalStart - currentNalStart - 4 /* strip start-code */;
|
|
MediaBuffer *nalBuf = new MediaBuffer((void *)currentNalStart, currentNalSize);
|
|
addLengthPrefixedSample_l(nalBuf);
|
|
nalBuf->release();
|
|
|
|
currentNalStart = nextNalStart;
|
|
}
|
|
|
|
size_t currentNalOffset = currentNalStart - dataStart;
|
|
buffer->set_range(buffer->range_offset() + currentNalOffset,
|
|
buffer->range_length() - currentNalOffset);
|
|
addLengthPrefixedSample_l(buffer);
|
|
}
|
|
|
|
void MPEG4Writer::addLengthPrefixedSample_l(MediaBuffer *buffer) {
|
|
size_t length = buffer->range_length();
|
|
if (mUse4ByteNalLength) {
|
|
uint8_t x = length >> 24;
|
|
writeOrPostError(mFd, &x, 1);
|
|
x = (length >> 16) & 0xff;
|
|
writeOrPostError(mFd, &x, 1);
|
|
x = (length >> 8) & 0xff;
|
|
writeOrPostError(mFd, &x, 1);
|
|
x = length & 0xff;
|
|
writeOrPostError(mFd, &x, 1);
|
|
|
|
writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(), length);
|
|
|
|
mOffset += length + 4;
|
|
} else {
|
|
CHECK_LT(length, 65536u);
|
|
|
|
uint8_t x = length >> 8;
|
|
writeOrPostError(mFd, &x, 1);
|
|
x = length & 0xff;
|
|
writeOrPostError(mFd, &x, 1);
|
|
writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(), length);
|
|
mOffset += length + 2;
|
|
}
|
|
}
|
|
|
|
size_t MPEG4Writer::write(
|
|
const void *ptr, size_t size, size_t nmemb) {
|
|
|
|
const size_t bytes = size * nmemb;
|
|
if (mWriteBoxToMemory) {
|
|
|
|
off64_t boxSize = 8 + mInMemoryCacheOffset + bytes;
|
|
if (boxSize > mInMemoryCacheSize) {
|
|
// The reserved free space at the beginning of the file is not big
|
|
// enough. Boxes should be written to the end of the file from now
|
|
// on, but not to the in-memory cache.
|
|
|
|
// We write partial box that is in the memory to the file first.
|
|
for (List<off64_t>::iterator it = mBoxes.begin();
|
|
it != mBoxes.end(); ++it) {
|
|
(*it) += mOffset;
|
|
}
|
|
seekOrPostError(mFd, mOffset, SEEK_SET);
|
|
writeOrPostError(mFd, mInMemoryCache, mInMemoryCacheOffset);
|
|
writeOrPostError(mFd, ptr, bytes);
|
|
mOffset += (bytes + mInMemoryCacheOffset);
|
|
|
|
// All subsequent boxes will be written to the end of the file.
|
|
mWriteBoxToMemory = false;
|
|
} else {
|
|
memcpy(mInMemoryCache + mInMemoryCacheOffset, ptr, bytes);
|
|
mInMemoryCacheOffset += bytes;
|
|
}
|
|
} else {
|
|
writeOrPostError(mFd, ptr, bytes);
|
|
mOffset += bytes;
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
void MPEG4Writer::writeOrPostError(int fd, const void* buf, size_t count) {
|
|
if (mWriteSeekErr == true)
|
|
return;
|
|
ssize_t bytesWritten = ::write(fd, buf, count);
|
|
/* Write as much as possible during stop() execution when there was an error
|
|
* (mWriteSeekErr == true) in the previous call to write() or lseek64().
|
|
*/
|
|
if (bytesWritten == count)
|
|
return;
|
|
mWriteSeekErr = true;
|
|
// Note that errno is not changed even when bytesWritten < count.
|
|
ALOGE("writeOrPostError bytesWritten:%zd, count:%zu, error:%s(%d)", bytesWritten, count,
|
|
std::strerror(errno), errno);
|
|
|
|
// Can't guarantee that file is usable or write would succeed anymore, hence signal to stop.
|
|
sp<AMessage> msg = new AMessage(kWhatHandleIOError, mReflector);
|
|
status_t err = msg->post();
|
|
ALOGE("writeOrPostError post:%d", err);
|
|
}
|
|
|
|
void MPEG4Writer::seekOrPostError(int fd, off64_t offset, int whence) {
|
|
if (mWriteSeekErr == true)
|
|
return;
|
|
off64_t resOffset = lseek64(fd, offset, whence);
|
|
/* Allow to seek during stop() execution even when there was an error
|
|
* (mWriteSeekErr == true) in the previous call to write() or lseek64().
|
|
*/
|
|
if (resOffset == offset)
|
|
return;
|
|
mWriteSeekErr = true;
|
|
ALOGE("seekOrPostError resOffset:%" PRIu64 ", offset:%" PRIu64 ", error:%s(%d)", resOffset,
|
|
offset, std::strerror(errno), errno);
|
|
|
|
// Can't guarantee that file is usable or seek would succeed anymore, hence signal to stop.
|
|
sp<AMessage> msg = new AMessage(kWhatHandleIOError, mReflector);
|
|
status_t err = msg->post();
|
|
ALOGE("seekOrPostError post:%d", err);
|
|
}
|
|
|
|
void MPEG4Writer::beginBox(uint32_t id) {
|
|
ALOGV("beginBox:%" PRIu32, id);
|
|
|
|
mBoxes.push_back(mWriteBoxToMemory?
|
|
mInMemoryCacheOffset: mOffset);
|
|
|
|
writeInt32(0);
|
|
writeInt32(id);
|
|
}
|
|
|
|
void MPEG4Writer::beginBox(const char *fourcc) {
|
|
ALOGV("beginBox:%s", fourcc);
|
|
CHECK_EQ(strlen(fourcc), 4u);
|
|
|
|
mBoxes.push_back(mWriteBoxToMemory?
|
|
mInMemoryCacheOffset: mOffset);
|
|
|
|
writeInt32(0);
|
|
writeFourcc(fourcc);
|
|
}
|
|
|
|
void MPEG4Writer::endBox() {
|
|
CHECK(!mBoxes.empty());
|
|
|
|
off64_t offset = *--mBoxes.end();
|
|
mBoxes.erase(--mBoxes.end());
|
|
|
|
if (mWriteBoxToMemory) {
|
|
int32_t x = htonl(mInMemoryCacheOffset - offset);
|
|
memcpy(mInMemoryCache + offset, &x, 4);
|
|
} else {
|
|
seekOrPostError(mFd, offset, SEEK_SET);
|
|
writeInt32(mOffset - offset);
|
|
ALOGV("box size:%" PRIu64, mOffset - offset);
|
|
mOffset -= 4;
|
|
seekOrPostError(mFd, mOffset, SEEK_SET);
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::writeInt8(int8_t x) {
|
|
write(&x, 1, 1);
|
|
}
|
|
|
|
void MPEG4Writer::writeInt16(int16_t x) {
|
|
x = htons(x);
|
|
write(&x, 1, 2);
|
|
}
|
|
|
|
void MPEG4Writer::writeInt32(int32_t x) {
|
|
x = htonl(x);
|
|
write(&x, 1, 4);
|
|
}
|
|
|
|
void MPEG4Writer::writeInt64(int64_t x) {
|
|
x = hton64(x);
|
|
write(&x, 1, 8);
|
|
}
|
|
|
|
void MPEG4Writer::writeCString(const char *s) {
|
|
size_t n = strlen(s);
|
|
write(s, 1, n + 1);
|
|
}
|
|
|
|
void MPEG4Writer::writeFourcc(const char *s) {
|
|
CHECK_EQ(strlen(s), 4u);
|
|
write(s, 1, 4);
|
|
}
|
|
|
|
|
|
// Written in +/-DD.DDDD format
|
|
void MPEG4Writer::writeLatitude(int degreex10000) {
|
|
bool isNegative = (degreex10000 < 0);
|
|
char sign = isNegative? '-': '+';
|
|
|
|
// Handle the whole part
|
|
char str[9];
|
|
int wholePart = degreex10000 / 10000;
|
|
if (wholePart == 0) {
|
|
snprintf(str, 5, "%c%.2d.", sign, wholePart);
|
|
} else {
|
|
snprintf(str, 5, "%+.2d.", wholePart);
|
|
}
|
|
|
|
// Handle the fractional part
|
|
int fractionalPart = degreex10000 - (wholePart * 10000);
|
|
if (fractionalPart < 0) {
|
|
fractionalPart = -fractionalPart;
|
|
}
|
|
snprintf(&str[4], 5, "%.4d", fractionalPart);
|
|
|
|
// Do not write the null terminator
|
|
write(str, 1, 8);
|
|
}
|
|
|
|
// Written in +/- DDD.DDDD format
|
|
void MPEG4Writer::writeLongitude(int degreex10000) {
|
|
bool isNegative = (degreex10000 < 0);
|
|
char sign = isNegative? '-': '+';
|
|
|
|
// Handle the whole part
|
|
char str[10];
|
|
int wholePart = degreex10000 / 10000;
|
|
if (wholePart == 0) {
|
|
snprintf(str, 6, "%c%.3d.", sign, wholePart);
|
|
} else {
|
|
snprintf(str, 6, "%+.3d.", wholePart);
|
|
}
|
|
|
|
// Handle the fractional part
|
|
int fractionalPart = degreex10000 - (wholePart * 10000);
|
|
if (fractionalPart < 0) {
|
|
fractionalPart = -fractionalPart;
|
|
}
|
|
snprintf(&str[5], 5, "%.4d", fractionalPart);
|
|
|
|
// Do not write the null terminator
|
|
write(str, 1, 9);
|
|
}
|
|
|
|
/*
|
|
* Geodata is stored according to ISO-6709 standard.
|
|
* latitudex10000 is latitude in degrees times 10000, and
|
|
* longitudex10000 is longitude in degrees times 10000.
|
|
* The range for the latitude is in [-90, +90], and
|
|
* The range for the longitude is in [-180, +180]
|
|
*/
|
|
status_t MPEG4Writer::setGeoData(int latitudex10000, int longitudex10000) {
|
|
// Is latitude or longitude out of range?
|
|
if (latitudex10000 < -900000 || latitudex10000 > 900000 ||
|
|
longitudex10000 < -1800000 || longitudex10000 > 1800000) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
mLatitudex10000 = latitudex10000;
|
|
mLongitudex10000 = longitudex10000;
|
|
mAreGeoTagsAvailable = true;
|
|
mMoovExtraSize += 30;
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::setCaptureRate(float captureFps) {
|
|
if (captureFps <= 0.0f) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
// Increase moovExtraSize once only irrespective of how many times
|
|
// setCaptureRate is called.
|
|
bool containsCaptureFps = mMetaKeys->contains(kMetaKey_CaptureFps);
|
|
mMetaKeys->setFloat(kMetaKey_CaptureFps, captureFps);
|
|
if (!containsCaptureFps) {
|
|
mMoovExtraSize += sizeof(kMetaKey_CaptureFps) + 4 + 32;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::setTemporalLayerCount(uint32_t layerCount) {
|
|
if (layerCount > 9) {
|
|
return BAD_VALUE;
|
|
}
|
|
|
|
if (layerCount > 0) {
|
|
mMetaKeys->setInt32(kMetaKey_TemporalLayerCount, layerCount);
|
|
mMoovExtraSize += sizeof(kMetaKey_TemporalLayerCount) + 4 + 32;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
void MPEG4Writer::notifyApproachingLimit() {
|
|
Mutex::Autolock autolock(mLock);
|
|
// Only notify once.
|
|
if (mSendNotify) {
|
|
return;
|
|
}
|
|
ALOGW("Recorded file size is approaching limit %" PRId64 "bytes",
|
|
mMaxFileSizeLimitBytes);
|
|
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING, 0);
|
|
mSendNotify = true;
|
|
}
|
|
|
|
void MPEG4Writer::write(const void *data, size_t size) {
|
|
write(data, 1, size);
|
|
}
|
|
|
|
bool MPEG4Writer::isFileStreamable() const {
|
|
return mStreamableFile;
|
|
}
|
|
|
|
bool MPEG4Writer::preAllocate(uint64_t wantSize) {
|
|
if (!mPreAllocationEnabled)
|
|
return true;
|
|
|
|
std::lock_guard<std::mutex> l(mFallocMutex);
|
|
|
|
if (mFallocateErr == true)
|
|
return false;
|
|
|
|
// approxMOOVHeadersSize has to be changed whenever its needed in the future.
|
|
uint64_t approxMOOVHeadersSize = 500;
|
|
// approxTrackHeadersSize has to be changed whenever its needed in the future.
|
|
const uint64_t approxTrackHeadersSize = 800;
|
|
|
|
uint64_t approxMOOVBoxSize = 0;
|
|
if (mPreAllocFirstTime) {
|
|
mPreAllocFirstTime = false;
|
|
approxMOOVBoxSize = approxMOOVHeadersSize + mFileLevelMetaDataSize + mMoovExtraSize +
|
|
(approxTrackHeadersSize * numTracks());
|
|
ALOGV("firstTimeAllocation approxMOOVBoxSize:%" PRIu64, approxMOOVBoxSize);
|
|
}
|
|
|
|
uint64_t allTracksTotalMetaDataSizeEstimate = 0;
|
|
for (List<Track *>::iterator it = mTracks.begin(); it != mTracks.end(); ++it) {
|
|
allTracksTotalMetaDataSizeEstimate += ((*it)->trackMetaDataSize());
|
|
}
|
|
ALOGV(" allTracksTotalMetaDataSizeEstimate:%" PRIu64, allTracksTotalMetaDataSizeEstimate);
|
|
|
|
/* MOOVBoxSize will increase whenever a sample gets written to the file. Enough to allocate
|
|
* the delta increase for each sample after the very first allocation.
|
|
*/
|
|
uint64_t approxMetaDataSizeIncrease =
|
|
allTracksTotalMetaDataSizeEstimate - mPrevAllTracksTotalMetaDataSizeEstimate;
|
|
ALOGV("approxMetaDataSizeIncrease:%" PRIu64 " wantSize:%" PRIu64, approxMetaDataSizeIncrease,
|
|
wantSize);
|
|
mPrevAllTracksTotalMetaDataSizeEstimate = allTracksTotalMetaDataSizeEstimate;
|
|
ALOGV("mPreAllocateFileEndOffset:%" PRIu64 " mOffset:%" PRIu64, mPreAllocateFileEndOffset,
|
|
mOffset);
|
|
off64_t lastFileEndOffset = std::max(mPreAllocateFileEndOffset, mOffset);
|
|
uint64_t preAllocateSize = wantSize + approxMOOVBoxSize + approxMetaDataSizeIncrease;
|
|
ALOGV("preAllocateSize :%" PRIu64 " lastFileEndOffset:%" PRIu64, preAllocateSize,
|
|
lastFileEndOffset);
|
|
|
|
int res = fallocate(mFd, 0, lastFileEndOffset, preAllocateSize);
|
|
if (res == -1) {
|
|
ALOGE("fallocate err:%s, %d, fd:%d", strerror(errno), errno, mFd);
|
|
sp<AMessage> msg = new AMessage(kWhatHandleFallocateError, mReflector);
|
|
status_t err = msg->post();
|
|
mFallocateErr = true;
|
|
ALOGD("preAllocation post:%d", err);
|
|
} else {
|
|
mPreAllocateFileEndOffset = lastFileEndOffset + preAllocateSize;
|
|
ALOGV("mPreAllocateFileEndOffset:%" PRIu64, mPreAllocateFileEndOffset);
|
|
}
|
|
return (res == -1) ? false : true;
|
|
}
|
|
|
|
bool MPEG4Writer::truncatePreAllocation() {
|
|
bool status = true;
|
|
off64_t endOffset = std::max(mMdatEndOffset, mOffset);
|
|
/* if mPreAllocateFileEndOffset >= endOffset, then preallocation logic works good. (diff >= 0).
|
|
* Otherwise, the logic needs to be modified.
|
|
*/
|
|
ALOGD("ftruncate mPreAllocateFileEndOffset:%" PRId64 " mOffset:%" PRIu64
|
|
" mMdatEndOffset:%" PRIu64 " diff:%" PRId64, mPreAllocateFileEndOffset, mOffset,
|
|
mMdatEndOffset, mPreAllocateFileEndOffset - endOffset);
|
|
if(ftruncate(mFd, endOffset) == -1) {
|
|
ALOGE("ftruncate err:%s, %d, fd:%d", strerror(errno), errno, mFd);
|
|
status = false;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
bool MPEG4Writer::exceedsFileSizeLimit() {
|
|
// No limit
|
|
if (mMaxFileSizeLimitBytes == 0) {
|
|
return false;
|
|
}
|
|
int64_t nTotalBytesEstimate = static_cast<int64_t>(mInMemoryCacheSize);
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes();
|
|
}
|
|
|
|
if (!mStreamableFile) {
|
|
// Add 1024 bytes as error tolerance
|
|
return nTotalBytesEstimate + 1024 >= mMaxFileSizeLimitBytes;
|
|
}
|
|
|
|
// Be conservative in the estimate: do not exceed 95% of
|
|
// the target file limit. For small target file size limit, though,
|
|
// this will not help.
|
|
return (nTotalBytesEstimate >= (95 * mMaxFileSizeLimitBytes) / 100);
|
|
}
|
|
|
|
bool MPEG4Writer::approachingFileSizeLimit() {
|
|
// No limit
|
|
if (mMaxFileSizeLimitBytes == 0) {
|
|
return false;
|
|
}
|
|
|
|
int64_t nTotalBytesEstimate = static_cast<int64_t>(mInMemoryCacheSize);
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes();
|
|
}
|
|
|
|
if (!mStreamableFile) {
|
|
// Add 1024 bytes as error tolerance
|
|
return nTotalBytesEstimate + 1024 >= (90 * mMaxFileSizeLimitBytes) / 100;
|
|
}
|
|
|
|
return (nTotalBytesEstimate >= (90 * mMaxFileSizeLimitBytes) / 100);
|
|
}
|
|
|
|
bool MPEG4Writer::exceedsFileDurationLimit() {
|
|
// No limit
|
|
if (mMaxFileDurationLimitUs == 0) {
|
|
return false;
|
|
}
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if (!(*it)->isHeic() && (*it)->getDurationUs() >= mMaxFileDurationLimitUs) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool MPEG4Writer::reachedEOS() {
|
|
bool allDone = true;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if (!(*it)->reachedEOS()) {
|
|
allDone = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return allDone;
|
|
}
|
|
|
|
void MPEG4Writer::setStartTimestampUs(int64_t timeUs) {
|
|
ALOGI("setStartTimestampUs: %" PRId64, timeUs);
|
|
CHECK_GE(timeUs, 0LL);
|
|
Mutex::Autolock autoLock(mLock);
|
|
if (mStartTimestampUs < 0 || mStartTimestampUs > timeUs) {
|
|
mStartTimestampUs = timeUs;
|
|
ALOGI("Earliest track starting time: %" PRId64, mStartTimestampUs);
|
|
}
|
|
}
|
|
|
|
int64_t MPEG4Writer::getStartTimestampUs() {
|
|
Mutex::Autolock autoLock(mLock);
|
|
return mStartTimestampUs;
|
|
}
|
|
|
|
/* Returns negative when reordering is needed because of BFrames or zero otherwise.
|
|
* CTTS values for tracks with BFrames offsets this negative value.
|
|
*/
|
|
int32_t MPEG4Writer::getStartTimeOffsetBFramesUs() {
|
|
Mutex::Autolock autoLock(mLock);
|
|
return mStartTimeOffsetBFramesUs;
|
|
}
|
|
|
|
size_t MPEG4Writer::numTracks() {
|
|
Mutex::Autolock autolock(mLock);
|
|
return mTracks.size();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
MPEG4Writer::Track::Track(
|
|
MPEG4Writer *owner, const sp<MediaSource> &source, size_t trackId)
|
|
: mOwner(owner),
|
|
mMeta(source->getFormat()),
|
|
mSource(source),
|
|
mDone(false),
|
|
mPaused(false),
|
|
mResumed(false),
|
|
mStarted(false),
|
|
mGotStartKeyFrame(false),
|
|
mIsMalformed(false),
|
|
mTrackId(trackId),
|
|
mTrackDurationUs(0),
|
|
mEstimatedTrackSizeBytes(0),
|
|
mSamplesHaveSameSize(true),
|
|
mStszTableEntries(new ListTableEntries<uint32_t, 1>(1000)),
|
|
mCo64TableEntries(new ListTableEntries<off64_t, 1>(1000)),
|
|
mStscTableEntries(new ListTableEntries<uint32_t, 3>(1000)),
|
|
mStssTableEntries(new ListTableEntries<uint32_t, 1>(1000)),
|
|
mSttsTableEntries(new ListTableEntries<uint32_t, 2>(1000)),
|
|
mCttsTableEntries(new ListTableEntries<uint32_t, 2>(1000)),
|
|
mElstTableEntries(new ListTableEntries<uint32_t, 3>(3)), // Reserve 3 rows, a row has 3 items
|
|
mMinCttsOffsetTimeUs(0),
|
|
mMinCttsOffsetTicks(0),
|
|
mMaxCttsOffsetTicks(0),
|
|
mCodecSpecificData(NULL),
|
|
mCodecSpecificDataSize(0),
|
|
mGotAllCodecSpecificData(false),
|
|
mReachedEOS(false),
|
|
mStartTimestampUs(-1),
|
|
mFirstSampleTimeRealUs(0),
|
|
mFirstSampleStartOffsetUs(0),
|
|
mRotation(0),
|
|
mDimgRefs("dimg"),
|
|
mImageItemId(0),
|
|
mItemIdBase(0),
|
|
mIsPrimary(0),
|
|
mWidth(0),
|
|
mHeight(0),
|
|
mTileWidth(0),
|
|
mTileHeight(0),
|
|
mGridRows(0),
|
|
mGridCols(0),
|
|
mNumTiles(1),
|
|
mTileIndex(0) {
|
|
getCodecSpecificDataFromInputFormatIfPossible();
|
|
|
|
const char *mime;
|
|
mMeta->findCString(kKeyMIMEType, &mime);
|
|
mIsAvc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
|
|
mIsHevc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC);
|
|
mIsAudio = !strncasecmp(mime, "audio/", 6);
|
|
mIsVideo = !strncasecmp(mime, "video/", 6);
|
|
mIsHeic = !strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC);
|
|
mIsMPEG4 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) ||
|
|
!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC);
|
|
|
|
// store temporal layer count
|
|
if (mIsVideo) {
|
|
int32_t count;
|
|
if (mMeta->findInt32(kKeyTemporalLayerCount, &count) && count > 1) {
|
|
mOwner->setTemporalLayerCount(count);
|
|
}
|
|
}
|
|
|
|
if (!mIsHeic) {
|
|
setTimeScale();
|
|
} else {
|
|
CHECK(mMeta->findInt32(kKeyWidth, &mWidth) && (mWidth > 0));
|
|
CHECK(mMeta->findInt32(kKeyHeight, &mHeight) && (mHeight > 0));
|
|
|
|
int32_t tileWidth, tileHeight, gridRows, gridCols;
|
|
if (mMeta->findInt32(kKeyTileWidth, &tileWidth) && (tileWidth > 0) &&
|
|
mMeta->findInt32(kKeyTileHeight, &tileHeight) && (tileHeight > 0) &&
|
|
mMeta->findInt32(kKeyGridRows, &gridRows) && (gridRows > 0) &&
|
|
mMeta->findInt32(kKeyGridCols, &gridCols) && (gridCols > 0)) {
|
|
mTileWidth = tileWidth;
|
|
mTileHeight = tileHeight;
|
|
mGridRows = gridRows;
|
|
mGridCols = gridCols;
|
|
mNumTiles = gridRows * gridCols;
|
|
}
|
|
if (!mMeta->findInt32(kKeyTrackIsDefault, &mIsPrimary)) {
|
|
mIsPrimary = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Clear all the internal states except the CSD data.
|
|
void MPEG4Writer::Track::resetInternal() {
|
|
mDone = false;
|
|
mPaused = false;
|
|
mResumed = false;
|
|
mStarted = false;
|
|
mGotStartKeyFrame = false;
|
|
mIsMalformed = false;
|
|
mTrackDurationUs = 0;
|
|
mEstimatedTrackSizeBytes = 0;
|
|
mSamplesHaveSameSize = false;
|
|
if (mStszTableEntries != NULL) {
|
|
delete mStszTableEntries;
|
|
mStszTableEntries = new ListTableEntries<uint32_t, 1>(1000);
|
|
}
|
|
if (mCo64TableEntries != NULL) {
|
|
delete mCo64TableEntries;
|
|
mCo64TableEntries = new ListTableEntries<off64_t, 1>(1000);
|
|
}
|
|
if (mStscTableEntries != NULL) {
|
|
delete mStscTableEntries;
|
|
mStscTableEntries = new ListTableEntries<uint32_t, 3>(1000);
|
|
}
|
|
if (mStssTableEntries != NULL) {
|
|
delete mStssTableEntries;
|
|
mStssTableEntries = new ListTableEntries<uint32_t, 1>(1000);
|
|
}
|
|
if (mSttsTableEntries != NULL) {
|
|
delete mSttsTableEntries;
|
|
mSttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
|
|
}
|
|
if (mCttsTableEntries != NULL) {
|
|
delete mCttsTableEntries;
|
|
mCttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
|
|
}
|
|
if (mElstTableEntries != NULL) {
|
|
delete mElstTableEntries;
|
|
mElstTableEntries = new ListTableEntries<uint32_t, 3>(3);
|
|
}
|
|
mReachedEOS = false;
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::trackMetaDataSize() {
|
|
int64_t co64BoxSizeBytes = mCo64TableEntries->count() * 8;
|
|
int64_t stszBoxSizeBytes = mStszTableEntries->count() * 4;
|
|
int64_t trackMetaDataSize = mStscTableEntries->count() * 12 + // stsc box size
|
|
mStssTableEntries->count() * 4 + // stss box size
|
|
mSttsTableEntries->count() * 8 + // stts box size
|
|
mCttsTableEntries->count() * 8 + // ctts box size
|
|
mElstTableEntries->count() * 12 + // elst box size
|
|
co64BoxSizeBytes + // stco box size
|
|
stszBoxSizeBytes; // stsz box size
|
|
return trackMetaDataSize;
|
|
}
|
|
|
|
|
|
void MPEG4Writer::Track::updateTrackSizeEstimate() {
|
|
mEstimatedTrackSizeBytes = mMdatSizeBytes; // media data size
|
|
if (!isHeic() && !mOwner->isFileStreamable()) {
|
|
mEstimatedTrackSizeBytes += trackMetaDataSize();
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneStscTableEntry(
|
|
size_t chunkId, size_t sampleId) {
|
|
mStscTableEntries->add(htonl(chunkId));
|
|
mStscTableEntries->add(htonl(sampleId));
|
|
mStscTableEntries->add(htonl(1));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneStssTableEntry(size_t sampleId) {
|
|
mStssTableEntries->add(htonl(sampleId));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneSttsTableEntry(size_t sampleCount, int32_t delta) {
|
|
if (delta == 0) {
|
|
ALOGW("0-duration samples found: %zu", sampleCount);
|
|
}
|
|
mSttsTableEntries->add(htonl(sampleCount));
|
|
mSttsTableEntries->add(htonl(delta));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneCttsTableEntry(size_t sampleCount, int32_t sampleOffset) {
|
|
if (!mIsVideo) {
|
|
return;
|
|
}
|
|
mCttsTableEntries->add(htonl(sampleCount));
|
|
mCttsTableEntries->add(htonl(sampleOffset));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneElstTableEntry(
|
|
uint32_t segmentDuration, int32_t mediaTime, int16_t mediaRate, int16_t mediaRateFraction) {
|
|
ALOGV("segmentDuration:%u, mediaTime:%d", segmentDuration, mediaTime);
|
|
ALOGV("mediaRate :%" PRId16 ", mediaRateFraction :%" PRId16 ", Ored %u", mediaRate,
|
|
mediaRateFraction, ((((uint32_t)mediaRate) << 16) | ((uint32_t)mediaRateFraction)));
|
|
mElstTableEntries->add(htonl(segmentDuration));
|
|
mElstTableEntries->add(htonl(mediaTime));
|
|
mElstTableEntries->add(htonl((((uint32_t)mediaRate) << 16) | (uint32_t)mediaRateFraction));
|
|
}
|
|
|
|
void MPEG4Writer::setupAndStartLooper() {
|
|
if (mLooper == nullptr) {
|
|
mLooper = new ALooper;
|
|
mLooper->setName("MP4WriterLooper");
|
|
mLooper->start();
|
|
mReflector = new AHandlerReflector<MPEG4Writer>(this);
|
|
mLooper->registerHandler(mReflector);
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::stopAndReleaseLooper() {
|
|
if (mLooper != nullptr) {
|
|
if (mReflector != nullptr) {
|
|
ALOGD("unregisterHandler");
|
|
mLooper->unregisterHandler(mReflector->id());
|
|
mReflector.clear();
|
|
}
|
|
mLooper->stop();
|
|
mLooper.clear();
|
|
}
|
|
}
|
|
|
|
status_t MPEG4Writer::setNextFd(int fd) {
|
|
Mutex::Autolock l(mLock);
|
|
if (mNextFd != -1) {
|
|
// No need to set a new FD yet.
|
|
return INVALID_OPERATION;
|
|
}
|
|
mNextFd = dup(fd);
|
|
return OK;
|
|
}
|
|
|
|
bool MPEG4Writer::Track::isExifData(
|
|
MediaBufferBase *buffer, uint32_t *tiffHdrOffset) const {
|
|
if (!mIsHeic) {
|
|
return false;
|
|
}
|
|
|
|
// Exif block starting with 'Exif\0\0'
|
|
size_t length = buffer->range_length();
|
|
uint8_t *data = (uint8_t *)buffer->data() + buffer->range_offset();
|
|
if ((length > sizeof(kExifHeader))
|
|
&& !memcmp(data, kExifHeader, sizeof(kExifHeader))) {
|
|
*tiffHdrOffset = sizeof(kExifHeader);
|
|
return true;
|
|
}
|
|
|
|
// Exif block starting with fourcc 'Exif' followed by APP1 marker
|
|
if ((length > sizeof(kExifApp1Marker) + 2 + sizeof(kExifHeader))
|
|
&& !memcmp(data, kExifApp1Marker, sizeof(kExifApp1Marker))
|
|
&& !memcmp(data + sizeof(kExifApp1Marker) + 2, kExifHeader, sizeof(kExifHeader))) {
|
|
// skip 'Exif' fourcc
|
|
buffer->set_range(4, buffer->range_length() - 4);
|
|
|
|
// 2-byte APP1 + 2-byte size followed by kExifHeader
|
|
*tiffHdrOffset = 2 + 2 + sizeof(kExifHeader);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void MPEG4Writer::Track::addChunkOffset(off64_t offset) {
|
|
CHECK(!mIsHeic);
|
|
mCo64TableEntries->add(hton64(offset));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addItemOffsetAndSize(off64_t offset, size_t size, bool isExif) {
|
|
CHECK(mIsHeic);
|
|
|
|
if (offset > UINT32_MAX || size > UINT32_MAX) {
|
|
ALOGE("offset or size is out of range: %lld, %lld",
|
|
(long long) offset, (long long) size);
|
|
mIsMalformed = true;
|
|
}
|
|
if (mIsMalformed) {
|
|
return;
|
|
}
|
|
|
|
if (isExif) {
|
|
uint16_t exifItemId;
|
|
if (mOwner->reserveItemId_l(1, &exifItemId) != OK) {
|
|
return;
|
|
}
|
|
|
|
mExifList.push_back(mOwner->addItem_l({
|
|
.itemType = "Exif",
|
|
.itemId = exifItemId,
|
|
.isPrimary = false,
|
|
.isHidden = false,
|
|
.offset = (uint32_t)offset,
|
|
.size = (uint32_t)size,
|
|
}));
|
|
return;
|
|
}
|
|
|
|
if (mTileIndex >= mNumTiles) {
|
|
ALOGW("Ignoring excess tiles!");
|
|
return;
|
|
}
|
|
|
|
// Rotation angle in HEIF is CCW, framework angle is CW.
|
|
int32_t heifRotation = 0;
|
|
switch(mRotation) {
|
|
case 90: heifRotation = 3; break;
|
|
case 180: heifRotation = 2; break;
|
|
case 270: heifRotation = 1; break;
|
|
default: break; // don't set if invalid
|
|
}
|
|
|
|
bool hasGrid = (mTileWidth > 0);
|
|
|
|
if (mProperties.empty()) {
|
|
mProperties.push_back(mOwner->addProperty_l({
|
|
.type = FOURCC('h', 'v', 'c', 'C'),
|
|
.hvcc = ABuffer::CreateAsCopy(mCodecSpecificData, mCodecSpecificDataSize)
|
|
}));
|
|
|
|
mProperties.push_back(mOwner->addProperty_l({
|
|
.type = FOURCC('i', 's', 'p', 'e'),
|
|
.width = hasGrid ? mTileWidth : mWidth,
|
|
.height = hasGrid ? mTileHeight : mHeight,
|
|
}));
|
|
|
|
if (!hasGrid && heifRotation > 0) {
|
|
mProperties.push_back(mOwner->addProperty_l({
|
|
.type = FOURCC('i', 'r', 'o', 't'),
|
|
.rotation = heifRotation,
|
|
}));
|
|
}
|
|
}
|
|
|
|
mTileIndex++;
|
|
if (hasGrid) {
|
|
mDimgRefs.value.push_back(mOwner->addItem_l({
|
|
.itemType = "hvc1",
|
|
.itemId = mItemIdBase++,
|
|
.isPrimary = false,
|
|
.isHidden = true,
|
|
.offset = (uint32_t)offset,
|
|
.size = (uint32_t)size,
|
|
.properties = mProperties,
|
|
}));
|
|
|
|
if (mTileIndex == mNumTiles) {
|
|
mProperties.clear();
|
|
mProperties.push_back(mOwner->addProperty_l({
|
|
.type = FOURCC('i', 's', 'p', 'e'),
|
|
.width = mWidth,
|
|
.height = mHeight,
|
|
}));
|
|
if (heifRotation > 0) {
|
|
mProperties.push_back(mOwner->addProperty_l({
|
|
.type = FOURCC('i', 'r', 'o', 't'),
|
|
.rotation = heifRotation,
|
|
}));
|
|
}
|
|
mImageItemId = mOwner->addItem_l({
|
|
.itemType = "grid",
|
|
.itemId = mItemIdBase++,
|
|
.isPrimary = (mIsPrimary != 0),
|
|
.isHidden = false,
|
|
.rows = (uint32_t)mGridRows,
|
|
.cols = (uint32_t)mGridCols,
|
|
.width = (uint32_t)mWidth,
|
|
.height = (uint32_t)mHeight,
|
|
.properties = mProperties,
|
|
});
|
|
}
|
|
} else {
|
|
mImageItemId = mOwner->addItem_l({
|
|
.itemType = "hvc1",
|
|
.itemId = mItemIdBase++,
|
|
.isPrimary = (mIsPrimary != 0),
|
|
.isHidden = false,
|
|
.offset = (uint32_t)offset,
|
|
.size = (uint32_t)size,
|
|
.properties = mProperties,
|
|
});
|
|
}
|
|
}
|
|
|
|
// Flush out the item refs for this track. Note that it must be called after the
|
|
// writer thread has stopped, because there might be pending items in the last
|
|
// few chunks written by the writer thread (as opposed to the track). In particular,
|
|
// it affects the 'dimg' refs for tiled image, as we only have the refs after the
|
|
// last tile sample is written.
|
|
void MPEG4Writer::Track::flushItemRefs() {
|
|
CHECK(mIsHeic);
|
|
|
|
if (mImageItemId > 0) {
|
|
mOwner->addRefs_l(mImageItemId, mDimgRefs);
|
|
|
|
if (!mExifList.empty()) {
|
|
// The "cdsc" ref is from the metadata/exif item to the image item.
|
|
// So the refs all contain the image item.
|
|
ItemRefs cdscRefs("cdsc");
|
|
cdscRefs.value.push_back(mImageItemId);
|
|
for (uint16_t exifItem : mExifList) {
|
|
mOwner->addRefs_l(exifItem, cdscRefs);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::setTimeScale() {
|
|
ALOGV("setTimeScale");
|
|
// Default time scale
|
|
mTimeScale = 90000;
|
|
|
|
if (mIsAudio) {
|
|
// Use the sampling rate as the default time scale for audio track.
|
|
int32_t sampleRate;
|
|
bool success = mMeta->findInt32(kKeySampleRate, &sampleRate);
|
|
CHECK(success);
|
|
mTimeScale = sampleRate;
|
|
}
|
|
|
|
// If someone would like to overwrite the timescale, use user-supplied value.
|
|
int32_t timeScale;
|
|
if (mMeta->findInt32(kKeyTimeScale, &timeScale)) {
|
|
mTimeScale = timeScale;
|
|
}
|
|
|
|
CHECK_GT(mTimeScale, 0);
|
|
}
|
|
|
|
void MPEG4Writer::onMessageReceived(const sp<AMessage> &msg) {
|
|
switch (msg->what()) {
|
|
case kWhatSwitch:
|
|
{
|
|
mLock.lock();
|
|
int fd = mNextFd;
|
|
mNextFd = -1;
|
|
mLock.unlock();
|
|
finishCurrentSession();
|
|
initInternal(fd, false /*isFirstSession*/);
|
|
start(mStartMeta.get());
|
|
mSwitchPending = false;
|
|
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0);
|
|
break;
|
|
}
|
|
// ::write() or lseek64() wasn't a success, file could be malformed
|
|
case kWhatHandleIOError: {
|
|
ALOGE("kWhatHandleIOError");
|
|
// Stop tracks' threads and main writer thread.
|
|
notify(MEDIA_RECORDER_EVENT_ERROR, MEDIA_RECORDER_ERROR_UNKNOWN, ERROR_MALFORMED);
|
|
stop();
|
|
break;
|
|
}
|
|
// fallocate() failed, hence notify app about it and stop().
|
|
case kWhatHandleFallocateError: {
|
|
ALOGE("kWhatHandleFallocateError");
|
|
//TODO: introduce new MEDIA_RECORDER_INFO_STOPPED instead MEDIA_RECORDER_INFO_UNKNOWN?
|
|
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_UNKNOWN, ERROR_IO);
|
|
stop();
|
|
break;
|
|
}
|
|
default:
|
|
TRESPASS();
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::getCodecSpecificDataFromInputFormatIfPossible() {
|
|
const char *mime;
|
|
|
|
CHECK(mMeta->findCString(kKeyMIMEType, &mime));
|
|
|
|
uint32_t type;
|
|
const void *data = NULL;
|
|
size_t size = 0;
|
|
if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
|
|
mMeta->findData(kKeyAVCC, &type, &data, &size);
|
|
} else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC) ||
|
|
!strcasecmp(mime, MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC)) {
|
|
mMeta->findData(kKeyHVCC, &type, &data, &size);
|
|
} else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_DOLBY_VISION)) {
|
|
mMeta->findData(kKeyDVCC, &type, &data, &size);
|
|
} else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) ||
|
|
!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) {
|
|
if (mMeta->findData(kKeyESDS, &type, &data, &size)) {
|
|
ESDS esds(data, size);
|
|
if (esds.getCodecSpecificInfo(&data, &size) == OK &&
|
|
data != NULL &&
|
|
copyCodecSpecificData((uint8_t*)data, size) == OK) {
|
|
mGotAllCodecSpecificData = true;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
if (data != NULL && copyCodecSpecificData((uint8_t *)data, size) == OK) {
|
|
mGotAllCodecSpecificData = true;
|
|
}
|
|
}
|
|
|
|
MPEG4Writer::Track::~Track() {
|
|
stop();
|
|
|
|
delete mStszTableEntries;
|
|
delete mCo64TableEntries;
|
|
delete mStscTableEntries;
|
|
delete mSttsTableEntries;
|
|
delete mStssTableEntries;
|
|
delete mCttsTableEntries;
|
|
delete mElstTableEntries;
|
|
|
|
mStszTableEntries = NULL;
|
|
mCo64TableEntries = NULL;
|
|
mStscTableEntries = NULL;
|
|
mSttsTableEntries = NULL;
|
|
mStssTableEntries = NULL;
|
|
mCttsTableEntries = NULL;
|
|
mElstTableEntries = NULL;
|
|
|
|
if (mCodecSpecificData != NULL) {
|
|
free(mCodecSpecificData);
|
|
mCodecSpecificData = NULL;
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::initTrackingProgressStatus(MetaData *params) {
|
|
ALOGV("initTrackingProgressStatus");
|
|
mPreviousTrackTimeUs = -1;
|
|
mTrackingProgressStatus = false;
|
|
mTrackEveryTimeDurationUs = 0;
|
|
{
|
|
int64_t timeUs;
|
|
if (params && params->findInt64(kKeyTrackTimeStatus, &timeUs)) {
|
|
ALOGV("Receive request to track progress status for every %" PRId64 " us", timeUs);
|
|
mTrackEveryTimeDurationUs = timeUs;
|
|
mTrackingProgressStatus = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
void *MPEG4Writer::ThreadWrapper(void *me) {
|
|
ALOGV("ThreadWrapper: %p", me);
|
|
MPEG4Writer *writer = static_cast<MPEG4Writer *>(me);
|
|
writer->threadFunc();
|
|
return NULL;
|
|
}
|
|
|
|
void MPEG4Writer::bufferChunk(const Chunk& chunk) {
|
|
ALOGV("bufferChunk: %p", chunk.mTrack);
|
|
Mutex::Autolock autolock(mLock);
|
|
CHECK_EQ(mDone, false);
|
|
|
|
for (List<ChunkInfo>::iterator it = mChunkInfos.begin();
|
|
it != mChunkInfos.end(); ++it) {
|
|
|
|
if (chunk.mTrack == it->mTrack) { // Found owner
|
|
it->mChunks.push_back(chunk);
|
|
mChunkReadyCondition.signal();
|
|
return;
|
|
}
|
|
}
|
|
|
|
CHECK(!"Received a chunk for a unknown track");
|
|
}
|
|
|
|
void MPEG4Writer::writeChunkToFile(Chunk* chunk) {
|
|
ALOGV("writeChunkToFile: %" PRId64 " from %s track",
|
|
chunk->mTimeStampUs, chunk->mTrack->getTrackType());
|
|
|
|
int32_t isFirstSample = true;
|
|
while (!chunk->mSamples.empty()) {
|
|
List<MediaBuffer *>::iterator it = chunk->mSamples.begin();
|
|
|
|
uint32_t tiffHdrOffset;
|
|
if (!(*it)->meta_data().findInt32(
|
|
kKeyExifTiffOffset, (int32_t*)&tiffHdrOffset)) {
|
|
tiffHdrOffset = 0;
|
|
}
|
|
bool isExif = (tiffHdrOffset > 0);
|
|
bool usePrefix = chunk->mTrack->usePrefix() && !isExif;
|
|
|
|
size_t bytesWritten;
|
|
off64_t offset = addSample_l(*it, usePrefix, tiffHdrOffset, &bytesWritten);
|
|
|
|
if (chunk->mTrack->isHeic()) {
|
|
chunk->mTrack->addItemOffsetAndSize(offset, bytesWritten, isExif);
|
|
} else if (isFirstSample) {
|
|
chunk->mTrack->addChunkOffset(offset);
|
|
isFirstSample = false;
|
|
}
|
|
|
|
(*it)->release();
|
|
(*it) = NULL;
|
|
chunk->mSamples.erase(it);
|
|
}
|
|
chunk->mSamples.clear();
|
|
}
|
|
|
|
void MPEG4Writer::writeAllChunks() {
|
|
ALOGV("writeAllChunks");
|
|
size_t outstandingChunks = 0;
|
|
Chunk chunk;
|
|
while (findChunkToWrite(&chunk)) {
|
|
writeChunkToFile(&chunk);
|
|
++outstandingChunks;
|
|
}
|
|
|
|
sendSessionSummary();
|
|
|
|
mChunkInfos.clear();
|
|
ALOGD("%zu chunks are written in the last batch", outstandingChunks);
|
|
}
|
|
|
|
bool MPEG4Writer::findChunkToWrite(Chunk *chunk) {
|
|
ALOGV("findChunkToWrite");
|
|
|
|
int64_t minTimestampUs = 0x7FFFFFFFFFFFFFFFLL;
|
|
Track *track = NULL;
|
|
for (List<ChunkInfo>::iterator it = mChunkInfos.begin();
|
|
it != mChunkInfos.end(); ++it) {
|
|
if (!it->mChunks.empty()) {
|
|
List<Chunk>::iterator chunkIt = it->mChunks.begin();
|
|
if (chunkIt->mTimeStampUs < minTimestampUs) {
|
|
minTimestampUs = chunkIt->mTimeStampUs;
|
|
track = it->mTrack;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (track == NULL) {
|
|
ALOGV("Nothing to be written after all");
|
|
return false;
|
|
}
|
|
|
|
if (mIsFirstChunk) {
|
|
mIsFirstChunk = false;
|
|
}
|
|
|
|
for (List<ChunkInfo>::iterator it = mChunkInfos.begin();
|
|
it != mChunkInfos.end(); ++it) {
|
|
if (it->mTrack == track) {
|
|
*chunk = *(it->mChunks.begin());
|
|
it->mChunks.erase(it->mChunks.begin());
|
|
CHECK_EQ(chunk->mTrack, track);
|
|
|
|
int64_t interChunkTimeUs =
|
|
chunk->mTimeStampUs - it->mPrevChunkTimestampUs;
|
|
if (interChunkTimeUs > it->mPrevChunkTimestampUs) {
|
|
it->mMaxInterChunkDurUs = interChunkTimeUs;
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void MPEG4Writer::threadFunc() {
|
|
ALOGV("threadFunc");
|
|
|
|
prctl(PR_SET_NAME, (unsigned long)"MPEG4Writer", 0, 0, 0);
|
|
|
|
Mutex::Autolock autoLock(mLock);
|
|
while (!mDone) {
|
|
Chunk chunk;
|
|
bool chunkFound = false;
|
|
|
|
while (!mDone && !(chunkFound = findChunkToWrite(&chunk))) {
|
|
mChunkReadyCondition.wait(mLock);
|
|
}
|
|
|
|
// In real time recording mode, write without holding the lock in order
|
|
// to reduce the blocking time for media track threads.
|
|
// Otherwise, hold the lock until the existing chunks get written to the
|
|
// file.
|
|
if (chunkFound) {
|
|
if (mIsRealTimeRecording) {
|
|
mLock.unlock();
|
|
}
|
|
writeChunkToFile(&chunk);
|
|
if (mIsRealTimeRecording) {
|
|
mLock.lock();
|
|
}
|
|
}
|
|
}
|
|
|
|
writeAllChunks();
|
|
}
|
|
|
|
status_t MPEG4Writer::startWriterThread() {
|
|
ALOGV("startWriterThread");
|
|
|
|
mDone = false;
|
|
mIsFirstChunk = true;
|
|
mDriftTimeUs = 0;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
ChunkInfo info;
|
|
info.mTrack = *it;
|
|
info.mPrevChunkTimestampUs = 0;
|
|
info.mMaxInterChunkDurUs = 0;
|
|
mChunkInfos.push_back(info);
|
|
}
|
|
|
|
pthread_attr_t attr;
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
|
|
pthread_create(&mThread, &attr, ThreadWrapper, this);
|
|
pthread_attr_destroy(&attr);
|
|
mWriterThreadStarted = true;
|
|
return OK;
|
|
}
|
|
|
|
|
|
status_t MPEG4Writer::Track::start(MetaData *params) {
|
|
if (!mDone && mPaused) {
|
|
mPaused = false;
|
|
mResumed = true;
|
|
return OK;
|
|
}
|
|
|
|
int64_t startTimeUs;
|
|
if (params == NULL || !params->findInt64(kKeyTime, &startTimeUs)) {
|
|
startTimeUs = 0;
|
|
}
|
|
mStartTimeRealUs = startTimeUs;
|
|
|
|
int32_t rotationDegrees;
|
|
if ((mIsVideo || mIsHeic) && params &&
|
|
params->findInt32(kKeyRotation, &rotationDegrees)) {
|
|
mRotation = rotationDegrees;
|
|
}
|
|
if (mIsHeic) {
|
|
// Reserve the item ids, so that the item ids are ordered in the same
|
|
// order that the image tracks are added.
|
|
// If we leave the item ids to be assigned when the sample is written out,
|
|
// the original track order may not be preserved, if two image tracks
|
|
// have data around the same time. (This could happen especially when
|
|
// we're encoding with single tile.) The reordering may be undesirable,
|
|
// even if the file is well-formed and the primary picture is correct.
|
|
|
|
// Reserve item ids for samples + grid
|
|
size_t numItemsToReserve = mNumTiles + (mNumTiles > 1);
|
|
status_t err = mOwner->reserveItemId_l(numItemsToReserve, &mItemIdBase);
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
}
|
|
|
|
initTrackingProgressStatus(params);
|
|
|
|
sp<MetaData> meta = new MetaData;
|
|
if (mOwner->isRealTimeRecording() && mOwner->numTracks() > 1) {
|
|
/*
|
|
* This extra delay of accepting incoming audio/video signals
|
|
* helps to align a/v start time at the beginning of a recording
|
|
* session, and it also helps eliminate the "recording" sound for
|
|
* camcorder applications.
|
|
*
|
|
* If client does not set the start time offset, we fall back to
|
|
* use the default initial delay value.
|
|
*/
|
|
int64_t startTimeOffsetUs = mOwner->getStartTimeOffsetMs() * 1000LL;
|
|
if (startTimeOffsetUs < 0) { // Start time offset was not set
|
|
startTimeOffsetUs = kInitialDelayTimeUs;
|
|
}
|
|
startTimeUs += startTimeOffsetUs;
|
|
ALOGI("Start time offset: %" PRId64 " us", startTimeOffsetUs);
|
|
}
|
|
|
|
meta->setInt64(kKeyTime, startTimeUs);
|
|
|
|
status_t err = mSource->start(meta.get());
|
|
if (err != OK) {
|
|
mDone = mReachedEOS = true;
|
|
return err;
|
|
}
|
|
|
|
pthread_attr_t attr;
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
|
|
|
|
mDone = false;
|
|
mStarted = true;
|
|
mTrackDurationUs = 0;
|
|
mReachedEOS = false;
|
|
mEstimatedTrackSizeBytes = 0;
|
|
mMdatSizeBytes = 0;
|
|
mMaxChunkDurationUs = 0;
|
|
mLastDecodingTimeUs = -1;
|
|
|
|
pthread_create(&mThread, &attr, ThreadWrapper, this);
|
|
pthread_attr_destroy(&attr);
|
|
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::pause() {
|
|
mPaused = true;
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::stop(bool stopSource) {
|
|
ALOGD("%s track stopping. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
|
|
if (!mStarted) {
|
|
ALOGE("Stop() called but track is not started or stopped");
|
|
return ERROR_END_OF_STREAM;
|
|
}
|
|
|
|
if (mDone) {
|
|
return OK;
|
|
}
|
|
|
|
if (stopSource) {
|
|
ALOGD("%s track source stopping", getTrackType());
|
|
mSource->stop();
|
|
ALOGD("%s track source stopped", getTrackType());
|
|
}
|
|
|
|
// Set mDone to be true after sucessfully stop mSource as mSource may be still outputting
|
|
// buffers to the writer.
|
|
mDone = true;
|
|
|
|
void *dummy;
|
|
status_t err = pthread_join(mThread, &dummy);
|
|
WARN_UNLESS(err == 0, "track::stop: pthread_join status:%d", err);
|
|
err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
|
|
WARN_UNLESS(err == 0, "%s track stopped. Status :%d. %s source", getTrackType(), err,
|
|
stopSource ? "Stop" : "Not Stop");
|
|
mStarted = false;
|
|
return err;
|
|
}
|
|
|
|
bool MPEG4Writer::Track::reachedEOS() {
|
|
return mReachedEOS;
|
|
}
|
|
|
|
// static
|
|
void *MPEG4Writer::Track::ThreadWrapper(void *me) {
|
|
Track *track = static_cast<Track *>(me);
|
|
|
|
status_t err = track->threadEntry();
|
|
return (void *)(uintptr_t)err;
|
|
}
|
|
|
|
static void getNalUnitType(uint8_t byte, uint8_t* type) {
|
|
ALOGV("getNalUnitType: %d", byte);
|
|
|
|
// nal_unit_type: 5-bit unsigned integer
|
|
*type = (byte & 0x1F);
|
|
}
|
|
|
|
const uint8_t *MPEG4Writer::Track::parseParamSet(
|
|
const uint8_t *data, size_t length, int type, size_t *paramSetLen) {
|
|
|
|
ALOGV("parseParamSet");
|
|
CHECK(type == kNalUnitTypeSeqParamSet ||
|
|
type == kNalUnitTypePicParamSet);
|
|
|
|
const uint8_t *nextStartCode = findNextNalStartCode(data, length);
|
|
*paramSetLen = nextStartCode - data;
|
|
if (*paramSetLen == 0) {
|
|
ALOGE("Param set is malformed, since its length is 0");
|
|
return NULL;
|
|
}
|
|
|
|
AVCParamSet paramSet(*paramSetLen, data);
|
|
if (type == kNalUnitTypeSeqParamSet) {
|
|
if (*paramSetLen < 4) {
|
|
ALOGE("Seq parameter set malformed");
|
|
return NULL;
|
|
}
|
|
if (mSeqParamSets.empty()) {
|
|
mProfileIdc = data[1];
|
|
mProfileCompatible = data[2];
|
|
mLevelIdc = data[3];
|
|
} else {
|
|
if (mProfileIdc != data[1] ||
|
|
mProfileCompatible != data[2] ||
|
|
mLevelIdc != data[3]) {
|
|
// COULD DO: set profile/level to the lowest required to support all SPSs
|
|
ALOGE("Inconsistent profile/level found in seq parameter sets");
|
|
return NULL;
|
|
}
|
|
}
|
|
mSeqParamSets.push_back(paramSet);
|
|
} else {
|
|
mPicParamSets.push_back(paramSet);
|
|
}
|
|
return nextStartCode;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::copyAVCCodecSpecificData(
|
|
const uint8_t *data, size_t size) {
|
|
ALOGV("copyAVCCodecSpecificData");
|
|
|
|
// 2 bytes for each of the parameter set length field
|
|
// plus the 7 bytes for the header
|
|
return copyCodecSpecificData(data, size, 4 + 7);
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::copyHEVCCodecSpecificData(
|
|
const uint8_t *data, size_t size) {
|
|
ALOGV("copyHEVCCodecSpecificData");
|
|
|
|
// Min length of HEVC CSD is 23. (ISO/IEC 14496-15:2014 Chapter 8.3.3.1.2)
|
|
return copyCodecSpecificData(data, size, 23);
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::copyCodecSpecificData(
|
|
const uint8_t *data, size_t size, size_t minLength) {
|
|
if (size < minLength) {
|
|
ALOGE("Codec specific data length too short: %zu", size);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
mCodecSpecificData = malloc(size);
|
|
if (mCodecSpecificData == NULL) {
|
|
ALOGE("Failed allocating codec specific data");
|
|
return NO_MEMORY;
|
|
}
|
|
mCodecSpecificDataSize = size;
|
|
memcpy(mCodecSpecificData, data, size);
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::parseAVCCodecSpecificData(
|
|
const uint8_t *data, size_t size) {
|
|
|
|
ALOGV("parseAVCCodecSpecificData");
|
|
// Data starts with a start code.
|
|
// SPS and PPS are separated with start codes.
|
|
// Also, SPS must come before PPS
|
|
uint8_t type = kNalUnitTypeSeqParamSet;
|
|
bool gotSps = false;
|
|
bool gotPps = false;
|
|
const uint8_t *tmp = data;
|
|
const uint8_t *nextStartCode = data;
|
|
size_t bytesLeft = size;
|
|
size_t paramSetLen = 0;
|
|
mCodecSpecificDataSize = 0;
|
|
while (bytesLeft > 4 && !memcmp("\x00\x00\x00\x01", tmp, 4)) {
|
|
getNalUnitType(*(tmp + 4), &type);
|
|
if (type == kNalUnitTypeSeqParamSet) {
|
|
if (gotPps) {
|
|
ALOGE("SPS must come before PPS");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
if (!gotSps) {
|
|
gotSps = true;
|
|
}
|
|
nextStartCode = parseParamSet(tmp + 4, bytesLeft - 4, type, ¶mSetLen);
|
|
} else if (type == kNalUnitTypePicParamSet) {
|
|
if (!gotSps) {
|
|
ALOGE("SPS must come before PPS");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
if (!gotPps) {
|
|
gotPps = true;
|
|
}
|
|
nextStartCode = parseParamSet(tmp + 4, bytesLeft - 4, type, ¶mSetLen);
|
|
} else {
|
|
ALOGE("Only SPS and PPS Nal units are expected");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
if (nextStartCode == NULL) {
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
// Move on to find the next parameter set
|
|
bytesLeft -= nextStartCode - tmp;
|
|
tmp = nextStartCode;
|
|
mCodecSpecificDataSize += (2 + paramSetLen);
|
|
}
|
|
|
|
{
|
|
// Check on the number of seq parameter sets
|
|
size_t nSeqParamSets = mSeqParamSets.size();
|
|
if (nSeqParamSets == 0) {
|
|
ALOGE("Cound not find sequence parameter set");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
if (nSeqParamSets > 0x1F) {
|
|
ALOGE("Too many seq parameter sets (%zu) found", nSeqParamSets);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
}
|
|
|
|
{
|
|
// Check on the number of pic parameter sets
|
|
size_t nPicParamSets = mPicParamSets.size();
|
|
if (nPicParamSets == 0) {
|
|
ALOGE("Cound not find picture parameter set");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
if (nPicParamSets > 0xFF) {
|
|
ALOGE("Too many pic parameter sets (%zd) found", nPicParamSets);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
}
|
|
// FIXME:
|
|
// Add chromat_format_idc, bit depth values, etc for AVC/h264 high profile and above
|
|
// and remove #if 0
|
|
#if 0
|
|
{
|
|
// Check on the profiles
|
|
// These profiles requires additional parameter set extensions
|
|
if (mProfileIdc == 100 || mProfileIdc == 110 ||
|
|
mProfileIdc == 122 || mProfileIdc == 144) {
|
|
ALOGE("Sorry, no support for profile_idc: %d!", mProfileIdc);
|
|
return BAD_VALUE;
|
|
}
|
|
}
|
|
#endif
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::makeAVCCodecSpecificData(
|
|
const uint8_t *data, size_t size) {
|
|
|
|
if (mCodecSpecificData != NULL) {
|
|
ALOGE("Already have codec specific data");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
if (size < 4) {
|
|
ALOGE("Codec specific data length too short: %zu", size);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
// Data is in the form of AVCCodecSpecificData
|
|
if (memcmp("\x00\x00\x00\x01", data, 4)) {
|
|
return copyAVCCodecSpecificData(data, size);
|
|
}
|
|
|
|
if (parseAVCCodecSpecificData(data, size) != OK) {
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
// ISO 14496-15: AVC file format
|
|
mCodecSpecificDataSize += 7; // 7 more bytes in the header
|
|
mCodecSpecificData = malloc(mCodecSpecificDataSize);
|
|
if (mCodecSpecificData == NULL) {
|
|
mCodecSpecificDataSize = 0;
|
|
ALOGE("Failed allocating codec specific data");
|
|
return NO_MEMORY;
|
|
}
|
|
uint8_t *header = (uint8_t *)mCodecSpecificData;
|
|
header[0] = 1; // version
|
|
header[1] = mProfileIdc; // profile indication
|
|
header[2] = mProfileCompatible; // profile compatibility
|
|
header[3] = mLevelIdc;
|
|
|
|
// 6-bit '111111' followed by 2-bit to lengthSizeMinuusOne
|
|
if (mOwner->useNalLengthFour()) {
|
|
header[4] = 0xfc | 3; // length size == 4 bytes
|
|
} else {
|
|
header[4] = 0xfc | 1; // length size == 2 bytes
|
|
}
|
|
|
|
// 3-bit '111' followed by 5-bit numSequenceParameterSets
|
|
int nSequenceParamSets = mSeqParamSets.size();
|
|
header[5] = 0xe0 | nSequenceParamSets;
|
|
header += 6;
|
|
for (List<AVCParamSet>::iterator it = mSeqParamSets.begin();
|
|
it != mSeqParamSets.end(); ++it) {
|
|
// 16-bit sequence parameter set length
|
|
uint16_t seqParamSetLength = it->mLength;
|
|
header[0] = seqParamSetLength >> 8;
|
|
header[1] = seqParamSetLength & 0xff;
|
|
|
|
// SPS NAL unit (sequence parameter length bytes)
|
|
memcpy(&header[2], it->mData, seqParamSetLength);
|
|
header += (2 + seqParamSetLength);
|
|
}
|
|
|
|
// 8-bit nPictureParameterSets
|
|
int nPictureParamSets = mPicParamSets.size();
|
|
header[0] = nPictureParamSets;
|
|
header += 1;
|
|
for (List<AVCParamSet>::iterator it = mPicParamSets.begin();
|
|
it != mPicParamSets.end(); ++it) {
|
|
// 16-bit picture parameter set length
|
|
uint16_t picParamSetLength = it->mLength;
|
|
header[0] = picParamSetLength >> 8;
|
|
header[1] = picParamSetLength & 0xff;
|
|
|
|
// PPS Nal unit (picture parameter set length bytes)
|
|
memcpy(&header[2], it->mData, picParamSetLength);
|
|
header += (2 + picParamSetLength);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
status_t MPEG4Writer::Track::parseHEVCCodecSpecificData(
|
|
const uint8_t *data, size_t size, HevcParameterSets ¶mSets) {
|
|
|
|
ALOGV("parseHEVCCodecSpecificData");
|
|
const uint8_t *tmp = data;
|
|
const uint8_t *nextStartCode = data;
|
|
size_t bytesLeft = size;
|
|
while (bytesLeft > 4 && !memcmp("\x00\x00\x00\x01", tmp, 4)) {
|
|
nextStartCode = findNextNalStartCode(tmp + 4, bytesLeft - 4);
|
|
status_t err = paramSets.addNalUnit(tmp + 4, (nextStartCode - tmp) - 4);
|
|
if (err != OK) {
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
// Move on to find the next parameter set
|
|
bytesLeft -= nextStartCode - tmp;
|
|
tmp = nextStartCode;
|
|
}
|
|
|
|
size_t csdSize = 23;
|
|
const size_t numNalUnits = paramSets.getNumNalUnits();
|
|
for (size_t i = 0; i < ARRAY_SIZE(kMandatoryHevcNalUnitTypes); ++i) {
|
|
int type = kMandatoryHevcNalUnitTypes[i];
|
|
size_t numParamSets = paramSets.getNumNalUnitsOfType(type);
|
|
if (numParamSets == 0) {
|
|
ALOGE("Cound not find NAL unit of type %d", type);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
}
|
|
for (size_t i = 0; i < ARRAY_SIZE(kHevcNalUnitTypes); ++i) {
|
|
int type = kHevcNalUnitTypes[i];
|
|
size_t numParamSets = paramSets.getNumNalUnitsOfType(type);
|
|
if (numParamSets > 0xffff) {
|
|
ALOGE("Too many seq parameter sets (%zu) found", numParamSets);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
csdSize += 3;
|
|
for (size_t j = 0; j < numNalUnits; ++j) {
|
|
if (paramSets.getType(j) != type) {
|
|
continue;
|
|
}
|
|
csdSize += 2 + paramSets.getSize(j);
|
|
}
|
|
}
|
|
mCodecSpecificDataSize = csdSize;
|
|
return OK;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::makeHEVCCodecSpecificData(
|
|
const uint8_t *data, size_t size) {
|
|
|
|
if (mCodecSpecificData != NULL) {
|
|
ALOGE("Already have codec specific data");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
if (size < 4) {
|
|
ALOGE("Codec specific data length too short: %zu", size);
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
// Data is in the form of HEVCCodecSpecificData
|
|
if (memcmp("\x00\x00\x00\x01", data, 4)) {
|
|
return copyHEVCCodecSpecificData(data, size);
|
|
}
|
|
|
|
HevcParameterSets paramSets;
|
|
if (parseHEVCCodecSpecificData(data, size, paramSets) != OK) {
|
|
ALOGE("failed parsing codec specific data");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
|
|
mCodecSpecificData = malloc(mCodecSpecificDataSize);
|
|
if (mCodecSpecificData == NULL) {
|
|
mCodecSpecificDataSize = 0;
|
|
ALOGE("Failed allocating codec specific data");
|
|
return NO_MEMORY;
|
|
}
|
|
status_t err = paramSets.makeHvcc((uint8_t *)mCodecSpecificData,
|
|
&mCodecSpecificDataSize, mOwner->useNalLengthFour() ? 4 : 2);
|
|
if (err != OK) {
|
|
ALOGE("failed constructing HVCC atom");
|
|
return err;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* Updates the drift time from the audio track so that
|
|
* the video track can get the updated drift time information
|
|
* from the file writer. The fluctuation of the drift time of the audio
|
|
* encoding path is smoothed out with a simple filter by giving a larger
|
|
* weight to more recently drift time. The filter coefficients, 0.5 and 0.5,
|
|
* are heuristically determined.
|
|
*/
|
|
void MPEG4Writer::Track::updateDriftTime(const sp<MetaData>& meta) {
|
|
int64_t driftTimeUs = 0;
|
|
if (meta->findInt64(kKeyDriftTime, &driftTimeUs)) {
|
|
int64_t prevDriftTimeUs = mOwner->getDriftTimeUs();
|
|
int64_t timeUs = (driftTimeUs + prevDriftTimeUs) >> 1;
|
|
mOwner->setDriftTimeUs(timeUs);
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::dumpTimeStamps() {
|
|
if (!mTimestampDebugHelper.empty()) {
|
|
std::string timeStampString = "Dumping " + std::string(getTrackType()) + " track's last " +
|
|
std::to_string(mTimestampDebugHelper.size()) +
|
|
" frames' timestamps(pts, dts) and frame type : ";
|
|
for (const TimestampDebugHelperEntry& entry : mTimestampDebugHelper) {
|
|
timeStampString += "\n(" + std::to_string(entry.pts) + "us, " +
|
|
std::to_string(entry.dts) + "us " + entry.frameType + ") ";
|
|
}
|
|
ALOGE("%s", timeStampString.c_str());
|
|
} else {
|
|
ALOGE("0 frames to dump timeStamps in %s track ", getTrackType());
|
|
}
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::threadEntry() {
|
|
int32_t count = 0;
|
|
const int64_t interleaveDurationUs = mOwner->interleaveDuration();
|
|
const bool hasMultipleTracks = (mOwner->numTracks() > 1);
|
|
int64_t chunkTimestampUs = 0;
|
|
int32_t nChunks = 0;
|
|
int32_t nActualFrames = 0; // frames containing non-CSD data (non-0 length)
|
|
int32_t nZeroLengthFrames = 0;
|
|
int64_t lastTimestampUs = 0; // Previous sample time stamp
|
|
int64_t previousSampleTimestampWithoutFudgeUs = 0; // Timestamp received/without fudge for STTS
|
|
int64_t lastDurationUs = 0; // Between the previous two samples
|
|
int64_t currDurationTicks = 0; // Timescale based ticks
|
|
int64_t lastDurationTicks = 0; // Timescale based ticks
|
|
int32_t sampleCount = 1; // Sample count in the current stts table entry
|
|
uint32_t previousSampleSize = 0; // Size of the previous sample
|
|
int64_t previousPausedDurationUs = 0;
|
|
int64_t timestampUs = 0;
|
|
int64_t cttsOffsetTimeUs = 0;
|
|
int64_t currCttsOffsetTimeTicks = 0; // Timescale based ticks
|
|
int64_t lastCttsOffsetTimeTicks = -1; // Timescale based ticks
|
|
int32_t cttsSampleCount = 0; // Sample count in the current ctts table entry
|
|
uint32_t lastSamplesPerChunk = 0;
|
|
int64_t lastSampleDurationUs = -1; // Duration calculated from EOS buffer and its timestamp
|
|
int64_t lastSampleDurationTicks = -1; // Timescale based ticks
|
|
|
|
if (mIsAudio) {
|
|
prctl(PR_SET_NAME, (unsigned long)"AudioTrackWriterThread", 0, 0, 0);
|
|
} else if (mIsVideo) {
|
|
prctl(PR_SET_NAME, (unsigned long)"VideoTrackWriterThread", 0, 0, 0);
|
|
} else {
|
|
prctl(PR_SET_NAME, (unsigned long)"MetadataTrackWriterThread", 0, 0, 0);
|
|
}
|
|
|
|
if (mOwner->isRealTimeRecording()) {
|
|
androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
|
|
}
|
|
|
|
sp<MetaData> meta_data;
|
|
|
|
status_t err = OK;
|
|
MediaBufferBase *buffer;
|
|
const char *trackName = getTrackType();
|
|
while (!mDone && (err = mSource->read(&buffer)) == OK) {
|
|
int32_t isEOS = false;
|
|
if (buffer->range_length() == 0) {
|
|
if (buffer->meta_data().findInt32(kKeyIsEndOfStream, &isEOS) && isEOS) {
|
|
int64_t eosSampleTimestampUs = -1;
|
|
CHECK(buffer->meta_data().findInt64(kKeyTime, &eosSampleTimestampUs));
|
|
if (eosSampleTimestampUs > 0) {
|
|
lastSampleDurationUs = eosSampleTimestampUs -
|
|
previousSampleTimestampWithoutFudgeUs -
|
|
previousPausedDurationUs;
|
|
if (lastSampleDurationUs >= 0) {
|
|
lastSampleDurationTicks = (lastSampleDurationUs * mTimeScale + 500000LL) /
|
|
1000000LL;
|
|
} else {
|
|
ALOGW("lastSampleDurationUs %" PRId64 " is negative", lastSampleDurationUs);
|
|
}
|
|
}
|
|
buffer->release();
|
|
buffer = nullptr;
|
|
mSource->stop();
|
|
break;
|
|
} else {
|
|
buffer->release();
|
|
buffer = nullptr;
|
|
++nZeroLengthFrames;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// If the codec specific data has not been received yet, delay pause.
|
|
// After the codec specific data is received, discard what we received
|
|
// when the track is to be paused.
|
|
if (mPaused && !mResumed) {
|
|
buffer->release();
|
|
buffer = NULL;
|
|
continue;
|
|
}
|
|
|
|
++count;
|
|
int32_t isCodecConfig;
|
|
if (buffer->meta_data().findInt32(kKeyIsCodecConfig, &isCodecConfig)
|
|
&& isCodecConfig) {
|
|
// if config format (at track addition) already had CSD, keep that
|
|
// UNLESS we have not received any frames yet.
|
|
// TODO: for now the entire CSD has to come in one frame for encoders, even though
|
|
// they need to be spread out for decoders.
|
|
if (mGotAllCodecSpecificData && nActualFrames > 0) {
|
|
ALOGI("ignoring additional CSD for video track after first frame");
|
|
} else {
|
|
mMeta = mSource->getFormat(); // get output format after format change
|
|
status_t err;
|
|
if (mIsAvc) {
|
|
err = makeAVCCodecSpecificData(
|
|
(const uint8_t *)buffer->data()
|
|
+ buffer->range_offset(),
|
|
buffer->range_length());
|
|
} else if (mIsHevc || mIsHeic) {
|
|
err = makeHEVCCodecSpecificData(
|
|
(const uint8_t *)buffer->data()
|
|
+ buffer->range_offset(),
|
|
buffer->range_length());
|
|
} else if (mIsMPEG4) {
|
|
copyCodecSpecificData((const uint8_t *)buffer->data() + buffer->range_offset(),
|
|
buffer->range_length());
|
|
}
|
|
}
|
|
|
|
buffer->release();
|
|
buffer = NULL;
|
|
if (OK != err) {
|
|
mSource->stop();
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_ERROR,
|
|
mTrackId | MEDIA_RECORDER_TRACK_ERROR_GENERAL, err);
|
|
break;
|
|
}
|
|
|
|
mGotAllCodecSpecificData = true;
|
|
continue;
|
|
}
|
|
|
|
// Per-frame metadata sample's size must be smaller than max allowed.
|
|
if (!mIsVideo && !mIsAudio && !mIsHeic &&
|
|
buffer->range_length() >= kMaxMetadataSize) {
|
|
ALOGW("Buffer size is %zu. Maximum metadata buffer size is %lld for %s track",
|
|
buffer->range_length(), (long long)kMaxMetadataSize, trackName);
|
|
buffer->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
bool isExif = false;
|
|
uint32_t tiffHdrOffset = 0;
|
|
int32_t isMuxerData;
|
|
if (buffer->meta_data().findInt32(kKeyIsMuxerData, &isMuxerData) && isMuxerData) {
|
|
// We only support one type of muxer data, which is Exif data block.
|
|
isExif = isExifData(buffer, &tiffHdrOffset);
|
|
if (!isExif) {
|
|
ALOGW("Ignoring bad Exif data block");
|
|
buffer->release();
|
|
buffer = NULL;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Reserve space in the file for the current sample + to be written MOOV box. If reservation
|
|
* for a new sample fails, preAllocate(...) stops muxing session completely. Stop() could
|
|
* write MOOV box successfully as space for the same was reserved in the prior call.
|
|
* Release the current buffer/sample only here.
|
|
*/
|
|
if (!mOwner->preAllocate(buffer->range_length())) {
|
|
buffer->release();
|
|
buffer = nullptr;
|
|
break;
|
|
}
|
|
|
|
++nActualFrames;
|
|
|
|
// Make a deep copy of the MediaBuffer and Metadata and release
|
|
// the original as soon as we can
|
|
MediaBuffer *copy = new MediaBuffer(buffer->range_length());
|
|
memcpy(copy->data(), (uint8_t *)buffer->data() + buffer->range_offset(),
|
|
buffer->range_length());
|
|
copy->set_range(0, buffer->range_length());
|
|
meta_data = new MetaData(buffer->meta_data());
|
|
buffer->release();
|
|
buffer = NULL;
|
|
if (isExif) {
|
|
copy->meta_data().setInt32(kKeyExifTiffOffset, tiffHdrOffset);
|
|
}
|
|
bool usePrefix = this->usePrefix() && !isExif;
|
|
|
|
if (usePrefix) StripStartcode(copy);
|
|
|
|
size_t sampleSize = copy->range_length();
|
|
if (usePrefix) {
|
|
if (mOwner->useNalLengthFour()) {
|
|
sampleSize += 4;
|
|
} else {
|
|
sampleSize += 2;
|
|
}
|
|
}
|
|
|
|
// Max file size or duration handling
|
|
mMdatSizeBytes += sampleSize;
|
|
updateTrackSizeEstimate();
|
|
|
|
if (mOwner->exceedsFileSizeLimit()) {
|
|
if (mOwner->switchFd() != OK) {
|
|
ALOGW("Recorded file size exceeds limit %" PRId64 "bytes",
|
|
mOwner->mMaxFileSizeLimitBytes);
|
|
mSource->stop();
|
|
mOwner->notify(
|
|
MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
|
|
} else {
|
|
ALOGV("%s Current recorded file size exceeds limit %" PRId64 "bytes. Switching output",
|
|
getTrackType(), mOwner->mMaxFileSizeLimitBytes);
|
|
}
|
|
copy->release();
|
|
break;
|
|
}
|
|
|
|
if (mOwner->exceedsFileDurationLimit()) {
|
|
ALOGW("Recorded file duration exceeds limit %" PRId64 "microseconds",
|
|
mOwner->mMaxFileDurationLimitUs);
|
|
mOwner->notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_DURATION_REACHED, 0);
|
|
copy->release();
|
|
mSource->stop();
|
|
break;
|
|
}
|
|
|
|
if (mOwner->approachingFileSizeLimit()) {
|
|
mOwner->notifyApproachingLimit();
|
|
}
|
|
int32_t isSync = false;
|
|
meta_data->findInt32(kKeyIsSyncFrame, &isSync);
|
|
CHECK(meta_data->findInt64(kKeyTime, ×tampUs));
|
|
timestampUs += mFirstSampleStartOffsetUs;
|
|
|
|
// For video, skip the first several non-key frames until getting the first key frame.
|
|
if (mIsVideo && !mGotStartKeyFrame && !isSync) {
|
|
ALOGD("Video skip non-key frame");
|
|
copy->release();
|
|
continue;
|
|
}
|
|
if (mIsVideo && isSync) {
|
|
mGotStartKeyFrame = true;
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
if (!mIsHeic) {
|
|
if (mStszTableEntries->count() == 0) {
|
|
mFirstSampleTimeRealUs = systemTime() / 1000;
|
|
if (timestampUs < 0 && mFirstSampleStartOffsetUs == 0) {
|
|
mFirstSampleStartOffsetUs = -timestampUs;
|
|
timestampUs = 0;
|
|
}
|
|
mOwner->setStartTimestampUs(timestampUs);
|
|
mStartTimestampUs = timestampUs;
|
|
previousPausedDurationUs = mStartTimestampUs;
|
|
}
|
|
|
|
if (mResumed) {
|
|
int64_t durExcludingEarlierPausesUs = timestampUs - previousPausedDurationUs;
|
|
if (WARN_UNLESS(durExcludingEarlierPausesUs >= 0LL, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
int64_t pausedDurationUs = durExcludingEarlierPausesUs - mTrackDurationUs;
|
|
if (WARN_UNLESS(pausedDurationUs >= lastDurationUs, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
previousPausedDurationUs += pausedDurationUs - lastDurationUs;
|
|
mResumed = false;
|
|
}
|
|
TimestampDebugHelperEntry timestampDebugEntry;
|
|
timestampUs -= previousPausedDurationUs;
|
|
timestampDebugEntry.pts = timestampUs;
|
|
if (WARN_UNLESS(timestampUs >= 0LL, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
if (mIsVideo) {
|
|
/*
|
|
* Composition time: timestampUs
|
|
* Decoding time: decodingTimeUs
|
|
* Composition time offset = composition time - decoding time
|
|
*/
|
|
int64_t decodingTimeUs;
|
|
CHECK(meta_data->findInt64(kKeyDecodingTime, &decodingTimeUs));
|
|
decodingTimeUs -= previousPausedDurationUs;
|
|
|
|
// ensure non-negative, monotonic decoding time
|
|
if (mLastDecodingTimeUs < 0) {
|
|
decodingTimeUs = std::max((int64_t)0, decodingTimeUs);
|
|
} else {
|
|
// increase decoding time by at least the larger vaule of 1 tick and
|
|
// 0.1 milliseconds. This needs to take into account the possible
|
|
// delta adjustment in DurationTicks in below.
|
|
decodingTimeUs = std::max(mLastDecodingTimeUs +
|
|
std::max(100, divUp(1000000, mTimeScale)), decodingTimeUs);
|
|
}
|
|
|
|
mLastDecodingTimeUs = decodingTimeUs;
|
|
timestampDebugEntry.dts = decodingTimeUs;
|
|
timestampDebugEntry.frameType = isSync ? "Key frame" : "Non-Key frame";
|
|
// Insert the timestamp into the mTimestampDebugHelper
|
|
if (mTimestampDebugHelper.size() >= kTimestampDebugCount) {
|
|
mTimestampDebugHelper.pop_front();
|
|
}
|
|
mTimestampDebugHelper.push_back(timestampDebugEntry);
|
|
|
|
cttsOffsetTimeUs =
|
|
timestampUs + kMaxCttsOffsetTimeUs - decodingTimeUs;
|
|
if (WARN_UNLESS(cttsOffsetTimeUs >= 0LL, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
timestampUs = decodingTimeUs;
|
|
ALOGV("decoding time: %" PRId64 " and ctts offset time: %" PRId64,
|
|
timestampUs, cttsOffsetTimeUs);
|
|
|
|
// Update ctts box table if necessary
|
|
currCttsOffsetTimeTicks =
|
|
(cttsOffsetTimeUs * mTimeScale + 500000LL) / 1000000LL;
|
|
if (WARN_UNLESS(currCttsOffsetTimeTicks <= 0x0FFFFFFFFLL, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
if (mStszTableEntries->count() == 0) {
|
|
// Force the first ctts table entry to have one single entry
|
|
// so that we can do adjustment for the initial track start
|
|
// time offset easily in writeCttsBox().
|
|
lastCttsOffsetTimeTicks = currCttsOffsetTimeTicks;
|
|
addOneCttsTableEntry(1, currCttsOffsetTimeTicks);
|
|
cttsSampleCount = 0; // No sample in ctts box is pending
|
|
} else {
|
|
if (currCttsOffsetTimeTicks != lastCttsOffsetTimeTicks) {
|
|
addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks);
|
|
lastCttsOffsetTimeTicks = currCttsOffsetTimeTicks;
|
|
cttsSampleCount = 1; // One sample in ctts box is pending
|
|
} else {
|
|
++cttsSampleCount;
|
|
}
|
|
}
|
|
|
|
// Update ctts time offset range
|
|
if (mStszTableEntries->count() == 0) {
|
|
mMinCttsOffsetTicks = currCttsOffsetTimeTicks;
|
|
mMaxCttsOffsetTicks = currCttsOffsetTimeTicks;
|
|
} else {
|
|
if (currCttsOffsetTimeTicks > mMaxCttsOffsetTicks) {
|
|
mMaxCttsOffsetTicks = currCttsOffsetTimeTicks;
|
|
} else if (currCttsOffsetTimeTicks < mMinCttsOffsetTicks) {
|
|
mMinCttsOffsetTicks = currCttsOffsetTimeTicks;
|
|
mMinCttsOffsetTimeUs = cttsOffsetTimeUs;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mOwner->isRealTimeRecording()) {
|
|
if (mIsAudio) {
|
|
updateDriftTime(meta_data);
|
|
}
|
|
}
|
|
|
|
if (WARN_UNLESS(timestampUs >= 0LL, "for %s track", trackName)) {
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
ALOGV("%s media time stamp: %" PRId64 " and previous paused duration %" PRId64,
|
|
trackName, timestampUs, previousPausedDurationUs);
|
|
if (timestampUs > mTrackDurationUs) {
|
|
mTrackDurationUs = timestampUs;
|
|
}
|
|
|
|
// We need to use the time scale based ticks, rather than the
|
|
// timestamp itself to determine whether we have to use a new
|
|
// stts entry, since we may have rounding errors.
|
|
// The calculation is intended to reduce the accumulated
|
|
// rounding errors.
|
|
currDurationTicks =
|
|
((timestampUs * mTimeScale + 500000LL) / 1000000LL -
|
|
(lastTimestampUs * mTimeScale + 500000LL) / 1000000LL);
|
|
if (currDurationTicks < 0LL) {
|
|
ALOGE("do not support out of order frames (timestamp: %lld < last: %lld for %s track",
|
|
(long long)timestampUs, (long long)lastTimestampUs, trackName);
|
|
copy->release();
|
|
mSource->stop();
|
|
mIsMalformed = true;
|
|
break;
|
|
}
|
|
|
|
previousSampleTimestampWithoutFudgeUs = timestampUs;
|
|
|
|
// if the duration is different for this sample, see if it is close enough to the previous
|
|
// duration that we can fudge it and use the same value, to avoid filling the stts table
|
|
// with lots of near-identical entries.
|
|
// "close enough" here means that the current duration needs to be adjusted by less
|
|
// than 0.1 milliseconds
|
|
if (lastDurationTicks && (currDurationTicks != lastDurationTicks)) {
|
|
int64_t deltaUs = ((lastDurationTicks - currDurationTicks) * 1000000LL
|
|
+ (mTimeScale / 2)) / mTimeScale;
|
|
if (deltaUs > -100 && deltaUs < 100) {
|
|
// use previous ticks, and adjust timestamp as if it was actually that number
|
|
// of ticks
|
|
currDurationTicks = lastDurationTicks;
|
|
timestampUs += deltaUs;
|
|
}
|
|
}
|
|
mStszTableEntries->add(htonl(sampleSize));
|
|
|
|
if (mStszTableEntries->count() > 2) {
|
|
|
|
// Force the first sample to have its own stts entry so that
|
|
// we can adjust its value later to maintain the A/V sync.
|
|
if (lastDurationTicks && currDurationTicks != lastDurationTicks) {
|
|
addOneSttsTableEntry(sampleCount, lastDurationTicks);
|
|
sampleCount = 1;
|
|
} else {
|
|
++sampleCount;
|
|
}
|
|
}
|
|
if (mSamplesHaveSameSize) {
|
|
if (mStszTableEntries->count() >= 2 && previousSampleSize != sampleSize) {
|
|
mSamplesHaveSameSize = false;
|
|
}
|
|
previousSampleSize = sampleSize;
|
|
}
|
|
ALOGV("%s timestampUs/lastTimestampUs: %" PRId64 "/%" PRId64,
|
|
trackName, timestampUs, lastTimestampUs);
|
|
lastDurationUs = timestampUs - lastTimestampUs;
|
|
lastDurationTicks = currDurationTicks;
|
|
lastTimestampUs = timestampUs;
|
|
|
|
if (isSync != 0) {
|
|
addOneStssTableEntry(mStszTableEntries->count());
|
|
}
|
|
|
|
if (mTrackingProgressStatus) {
|
|
if (mPreviousTrackTimeUs <= 0) {
|
|
mPreviousTrackTimeUs = mStartTimestampUs;
|
|
}
|
|
trackProgressStatus(timestampUs);
|
|
}
|
|
}
|
|
if (!hasMultipleTracks) {
|
|
size_t bytesWritten;
|
|
off64_t offset = mOwner->addSample_l(
|
|
copy, usePrefix, tiffHdrOffset, &bytesWritten);
|
|
|
|
if (mIsHeic) {
|
|
addItemOffsetAndSize(offset, bytesWritten, isExif);
|
|
} else {
|
|
if (mCo64TableEntries->count() == 0) {
|
|
addChunkOffset(offset);
|
|
}
|
|
}
|
|
copy->release();
|
|
copy = NULL;
|
|
continue;
|
|
}
|
|
|
|
mChunkSamples.push_back(copy);
|
|
if (mIsHeic) {
|
|
bufferChunk(0 /*timestampUs*/);
|
|
++nChunks;
|
|
} else if (interleaveDurationUs == 0) {
|
|
addOneStscTableEntry(++nChunks, 1);
|
|
bufferChunk(timestampUs);
|
|
} else {
|
|
if (chunkTimestampUs == 0) {
|
|
chunkTimestampUs = timestampUs;
|
|
} else {
|
|
int64_t chunkDurationUs = timestampUs - chunkTimestampUs;
|
|
if (chunkDurationUs > interleaveDurationUs) {
|
|
if (chunkDurationUs > mMaxChunkDurationUs) {
|
|
mMaxChunkDurationUs = chunkDurationUs;
|
|
}
|
|
++nChunks;
|
|
if (nChunks == 1 || // First chunk
|
|
lastSamplesPerChunk != mChunkSamples.size()) {
|
|
lastSamplesPerChunk = mChunkSamples.size();
|
|
addOneStscTableEntry(nChunks, lastSamplesPerChunk);
|
|
}
|
|
bufferChunk(timestampUs);
|
|
chunkTimestampUs = timestampUs;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (isTrackMalFormed()) {
|
|
mIsMalformed = true;
|
|
dumpTimeStamps();
|
|
err = ERROR_MALFORMED;
|
|
}
|
|
|
|
mOwner->trackProgressStatus(mTrackId, -1, err);
|
|
|
|
// Add final entries only for non-empty tracks.
|
|
if (mStszTableEntries->count() > 0) {
|
|
if (mIsHeic) {
|
|
if (!mChunkSamples.empty()) {
|
|
bufferChunk(0);
|
|
++nChunks;
|
|
}
|
|
} else {
|
|
// Last chunk
|
|
if (!hasMultipleTracks) {
|
|
addOneStscTableEntry(1, mStszTableEntries->count());
|
|
} else if (!mChunkSamples.empty()) {
|
|
addOneStscTableEntry(++nChunks, mChunkSamples.size());
|
|
bufferChunk(timestampUs);
|
|
}
|
|
|
|
// We don't really know how long the last frame lasts, since
|
|
// there is no frame time after it, just repeat the previous
|
|
// frame's duration.
|
|
if (mStszTableEntries->count() == 1) {
|
|
if (lastSampleDurationUs >= 0) {
|
|
addOneSttsTableEntry(sampleCount, lastSampleDurationTicks);
|
|
} else {
|
|
lastDurationUs = 0; // A single sample's duration
|
|
lastDurationTicks = 0;
|
|
addOneSttsTableEntry(sampleCount, lastDurationTicks);
|
|
}
|
|
} else if (lastSampleDurationUs >= 0) {
|
|
addOneSttsTableEntry(sampleCount, lastDurationTicks);
|
|
addOneSttsTableEntry(1, lastSampleDurationTicks);
|
|
} else {
|
|
++sampleCount; // Count for the last sample
|
|
addOneSttsTableEntry(sampleCount, lastDurationTicks);
|
|
}
|
|
|
|
// The last ctts box entry may not have been written yet, and this
|
|
// is to make sure that we write out the last ctts box entry.
|
|
if (currCttsOffsetTimeTicks == lastCttsOffsetTimeTicks) {
|
|
if (cttsSampleCount > 0) {
|
|
addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks);
|
|
}
|
|
}
|
|
if (lastSampleDurationUs >= 0) {
|
|
mTrackDurationUs += lastSampleDurationUs;
|
|
} else {
|
|
mTrackDurationUs += lastDurationUs;
|
|
}
|
|
}
|
|
}
|
|
mReachedEOS = true;
|
|
|
|
sendTrackSummary(hasMultipleTracks);
|
|
|
|
ALOGI("Received total/0-length (%d/%d) buffers and encoded %d frames. - %s",
|
|
count, nZeroLengthFrames, mStszTableEntries->count(), trackName);
|
|
if (mIsAudio) {
|
|
ALOGI("Audio track drift time: %" PRId64 " us", mOwner->getDriftTimeUs());
|
|
}
|
|
|
|
if (err == ERROR_END_OF_STREAM) {
|
|
return OK;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
bool MPEG4Writer::Track::isTrackMalFormed() const {
|
|
if (mIsMalformed) {
|
|
return true;
|
|
}
|
|
|
|
int32_t emptyTrackMalformed = false;
|
|
if (mOwner->mStartMeta &&
|
|
mOwner->mStartMeta->findInt32(kKeyEmptyTrackMalFormed, &emptyTrackMalformed) &&
|
|
emptyTrackMalformed) {
|
|
if (!mIsHeic && mStszTableEntries->count() == 0) { // no samples written
|
|
ALOGE("The number of recorded samples is 0");
|
|
return true;
|
|
}
|
|
if (mIsVideo && mStssTableEntries->count() == 0) { // no sync frames for video
|
|
ALOGE("There are no sync frames for video track");
|
|
return true;
|
|
}
|
|
} else {
|
|
// No sync frames for video.
|
|
if (mIsVideo && mStszTableEntries->count() > 0 && mStssTableEntries->count() == 0) {
|
|
ALOGE("There are no sync frames for video track");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (OK != checkCodecSpecificData()) { // no codec specific data
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void MPEG4Writer::Track::sendTrackSummary(bool hasMultipleTracks) {
|
|
|
|
// Send track summary only if test mode is enabled.
|
|
if (!isTestModeEnabled()) {
|
|
return;
|
|
}
|
|
|
|
int trackNum = (mTrackId << 28);
|
|
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_TYPE,
|
|
mIsAudio ? 0: 1);
|
|
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_DURATION_MS,
|
|
mTrackDurationUs / 1000);
|
|
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES,
|
|
mStszTableEntries->count());
|
|
|
|
{
|
|
// The system delay time excluding the requested initial delay that
|
|
// is used to eliminate the recording sound.
|
|
int64_t startTimeOffsetUs = mOwner->getStartTimeOffsetMs() * 1000LL;
|
|
if (startTimeOffsetUs < 0) { // Start time offset was not set
|
|
startTimeOffsetUs = kInitialDelayTimeUs;
|
|
}
|
|
int64_t initialDelayUs =
|
|
mFirstSampleTimeRealUs - mStartTimeRealUs - startTimeOffsetUs;
|
|
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS,
|
|
(initialDelayUs) / 1000);
|
|
}
|
|
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES,
|
|
mMdatSizeBytes / 1024);
|
|
|
|
if (hasMultipleTracks) {
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS,
|
|
mMaxChunkDurationUs / 1000);
|
|
|
|
int64_t moovStartTimeUs = mOwner->getStartTimestampUs();
|
|
if (mStartTimestampUs != moovStartTimeUs) {
|
|
int64_t startTimeOffsetUs = mStartTimestampUs - moovStartTimeUs;
|
|
mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS,
|
|
startTimeOffsetUs / 1000);
|
|
}
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::trackProgressStatus(int64_t timeUs, status_t err) {
|
|
ALOGV("trackProgressStatus: %" PRId64 " us", timeUs);
|
|
|
|
if (mTrackEveryTimeDurationUs > 0 &&
|
|
timeUs - mPreviousTrackTimeUs >= mTrackEveryTimeDurationUs) {
|
|
ALOGV("Fire time tracking progress status at %" PRId64 " us", timeUs);
|
|
mOwner->trackProgressStatus(mTrackId, timeUs - mPreviousTrackTimeUs, err);
|
|
mPreviousTrackTimeUs = timeUs;
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::trackProgressStatus(
|
|
size_t trackId, int64_t timeUs, status_t err) {
|
|
Mutex::Autolock lock(mLock);
|
|
int32_t trackNum = (trackId << 28);
|
|
|
|
// Error notification
|
|
// Do not consider ERROR_END_OF_STREAM an error
|
|
if (err != OK && err != ERROR_END_OF_STREAM) {
|
|
notify(MEDIA_RECORDER_TRACK_EVENT_ERROR,
|
|
trackNum | MEDIA_RECORDER_TRACK_ERROR_GENERAL,
|
|
err);
|
|
return;
|
|
}
|
|
|
|
if (timeUs == -1) {
|
|
// Send completion notification
|
|
notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS,
|
|
err);
|
|
} else {
|
|
// Send progress status
|
|
notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
|
|
trackNum | MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME,
|
|
timeUs / 1000);
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::setDriftTimeUs(int64_t driftTimeUs) {
|
|
ALOGV("setDriftTimeUs: %" PRId64 " us", driftTimeUs);
|
|
Mutex::Autolock autolock(mLock);
|
|
mDriftTimeUs = driftTimeUs;
|
|
}
|
|
|
|
int64_t MPEG4Writer::getDriftTimeUs() {
|
|
ALOGV("getDriftTimeUs: %" PRId64 " us", mDriftTimeUs);
|
|
Mutex::Autolock autolock(mLock);
|
|
return mDriftTimeUs;
|
|
}
|
|
|
|
bool MPEG4Writer::isRealTimeRecording() const {
|
|
return mIsRealTimeRecording;
|
|
}
|
|
|
|
bool MPEG4Writer::useNalLengthFour() {
|
|
return mUse4ByteNalLength;
|
|
}
|
|
|
|
void MPEG4Writer::Track::bufferChunk(int64_t timestampUs) {
|
|
ALOGV("bufferChunk");
|
|
|
|
Chunk chunk(this, timestampUs, mChunkSamples);
|
|
mOwner->bufferChunk(chunk);
|
|
mChunkSamples.clear();
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::getDurationUs() const {
|
|
return mTrackDurationUs + getStartTimeOffsetTimeUs() + mOwner->getStartTimeOffsetBFramesUs();
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::getEstimatedTrackSizeBytes() const {
|
|
return mEstimatedTrackSizeBytes;
|
|
}
|
|
|
|
int32_t MPEG4Writer::Track::getMetaSizeIncrease(
|
|
int32_t angle, int32_t trackCount) const {
|
|
CHECK(mIsHeic);
|
|
|
|
int32_t grid = (mTileWidth > 0);
|
|
int32_t rotate = (angle > 0);
|
|
|
|
// Note that the rotation angle is in the file meta, and we don't have
|
|
// it until start, so here the calculation has to assume rotation.
|
|
|
|
// increase to ipco
|
|
int32_t increase = 20 * (grid + 1) // 'ispe' property
|
|
+ (8 + mCodecSpecificDataSize) // 'hvcC' property
|
|
;
|
|
|
|
if (rotate) {
|
|
increase += 9; // 'irot' property (worst case)
|
|
}
|
|
|
|
// increase to iref and idat
|
|
if (grid) {
|
|
increase += (12 + mNumTiles * 2) // 'dimg' in iref
|
|
+ 12; // ImageGrid in 'idat' (worst case)
|
|
}
|
|
|
|
increase += (12 + 2); // 'cdsc' in iref
|
|
|
|
// increase to iloc, iinf
|
|
increase += (16 // increase to 'iloc'
|
|
+ 21) // increase to 'iinf'
|
|
* (mNumTiles + grid + 1); // "+1" is for 'Exif'
|
|
|
|
// When total # of properties is > 127, the properties id becomes 2-byte.
|
|
// We write 4 properties at most for each image (2x'ispe', 1x'hvcC', 1x'irot').
|
|
// Set the threshold to be 30.
|
|
int32_t propBytes = trackCount > 30 ? 2 : 1;
|
|
|
|
// increase to ipma
|
|
increase += (3 + 2 * propBytes) * mNumTiles // 'ispe' + 'hvcC'
|
|
+ grid * (3 + propBytes) // 'ispe' for grid
|
|
+ rotate * propBytes; // 'irot' (either on grid or tile)
|
|
|
|
return increase;
|
|
}
|
|
|
|
status_t MPEG4Writer::Track::checkCodecSpecificData() const {
|
|
const char *mime;
|
|
CHECK(mMeta->findCString(kKeyMIMEType, &mime));
|
|
if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime) ||
|
|
!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime) ||
|
|
!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime) ||
|
|
!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime) ||
|
|
!strcasecmp(MEDIA_MIMETYPE_IMAGE_ANDROID_HEIC, mime)) {
|
|
if (!mCodecSpecificData ||
|
|
mCodecSpecificDataSize <= 0) {
|
|
ALOGE("Missing codec specific data");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
} else {
|
|
if (mCodecSpecificData ||
|
|
mCodecSpecificDataSize > 0) {
|
|
ALOGE("Unexepected codec specific data found");
|
|
return ERROR_MALFORMED;
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
const char *MPEG4Writer::Track::getTrackType() const {
|
|
return mIsAudio ? "Audio" :
|
|
mIsVideo ? "Video" :
|
|
mIsHeic ? "Image" :
|
|
"Metadata";
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeTrackHeader() {
|
|
uint32_t now = getMpeg4Time();
|
|
mOwner->beginBox("trak");
|
|
writeTkhdBox(now);
|
|
writeEdtsBox();
|
|
mOwner->beginBox("mdia");
|
|
writeMdhdBox(now);
|
|
writeHdlrBox();
|
|
mOwner->beginBox("minf");
|
|
if (mIsAudio) {
|
|
writeSmhdBox();
|
|
} else if (mIsVideo) {
|
|
writeVmhdBox();
|
|
} else {
|
|
writeNmhdBox();
|
|
}
|
|
writeDinfBox();
|
|
writeStblBox();
|
|
mOwner->endBox(); // minf
|
|
mOwner->endBox(); // mdia
|
|
mOwner->endBox(); // trak
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::getMinCttsOffsetTimeUs() {
|
|
// For video tracks with ctts table, this should return the minimum ctts
|
|
// offset in the table. For non-video tracks or video tracks without ctts
|
|
// table, this will return kMaxCttsOffsetTimeUs.
|
|
if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
|
|
return kMaxCttsOffsetTimeUs;
|
|
}
|
|
return mMinCttsOffsetTimeUs;
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeStblBox() {
|
|
mOwner->beginBox("stbl");
|
|
// Add subboxes only for non-empty tracks.
|
|
if (mStszTableEntries->count() > 0) {
|
|
mOwner->beginBox("stsd");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt32(1); // entry count
|
|
if (mIsAudio) {
|
|
writeAudioFourCCBox();
|
|
} else if (mIsVideo) {
|
|
writeVideoFourCCBox();
|
|
} else {
|
|
writeMetadataFourCCBox();
|
|
}
|
|
mOwner->endBox(); // stsd
|
|
writeSttsBox();
|
|
if (mIsVideo) {
|
|
writeCttsBox();
|
|
writeStssBox();
|
|
}
|
|
writeStszBox();
|
|
writeStscBox();
|
|
writeCo64Box();
|
|
}
|
|
mOwner->endBox(); // stbl
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeMetadataFourCCBox() {
|
|
const char *mime;
|
|
bool success = mMeta->findCString(kKeyMIMEType, &mime);
|
|
CHECK(success);
|
|
const char *fourcc = getFourCCForMime(mime);
|
|
if (fourcc == NULL) {
|
|
ALOGE("Unknown mime type '%s'.", mime);
|
|
TRESPASS();
|
|
}
|
|
mOwner->beginBox(fourcc); // TextMetaDataSampleEntry
|
|
|
|
// HACK to make the metadata track compliant with the ISO standard.
|
|
//
|
|
// Metadata track is added from API 26 and the original implementation does not
|
|
// fully followed the TextMetaDataSampleEntry specified in ISO/IEC 14496-12-2015
|
|
// in that only the mime_format is written out. content_encoding and
|
|
// data_reference_index have not been written out. This leads to the failure
|
|
// when some MP4 parser tries to parse the metadata track according to the
|
|
// standard. The hack here will make the metadata track compliant with the
|
|
// standard while still maintaining backwards compatibility. This would enable
|
|
// Android versions before API 29 to be able to read out the standard compliant
|
|
// Metadata track generated with Android API 29 and upward. The trick is based
|
|
// on the fact that the Metadata track must start with prefix “application/” and
|
|
// those missing fields are not used in Android's Metadata track. By writting
|
|
// out the mime_format twice, the first mime_format will be used to fill out the
|
|
// missing reserved, data_reference_index and content encoding fields. On the
|
|
// parser side, the extracter before API 29 will read out the first mime_format
|
|
// correctly and drop the second mime_format. The extractor from API 29 will
|
|
// check if the reserved, data_reference_index and content encoding are filled
|
|
// with “application” to detect if this is a standard compliant metadata track
|
|
// and read out the data accordingly.
|
|
mOwner->writeCString(mime);
|
|
|
|
mOwner->writeCString(mime); // metadata mime_format
|
|
mOwner->endBox(); // mett
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeVideoFourCCBox() {
|
|
const char *mime;
|
|
bool success = mMeta->findCString(kKeyMIMEType, &mime);
|
|
CHECK(success);
|
|
const char *fourcc = getFourCCForMime(mime);
|
|
if (fourcc == NULL) {
|
|
ALOGE("Unknown mime type '%s'.", mime);
|
|
TRESPASS();
|
|
}
|
|
|
|
mOwner->beginBox(fourcc); // video format
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt16(0); // reserved
|
|
mOwner->writeInt16(1); // data ref index
|
|
mOwner->writeInt16(0); // predefined
|
|
mOwner->writeInt16(0); // reserved
|
|
mOwner->writeInt32(0); // predefined
|
|
mOwner->writeInt32(0); // predefined
|
|
mOwner->writeInt32(0); // predefined
|
|
|
|
int32_t width, height;
|
|
success = mMeta->findInt32(kKeyWidth, &width);
|
|
success = success && mMeta->findInt32(kKeyHeight, &height);
|
|
CHECK(success);
|
|
|
|
mOwner->writeInt16(width);
|
|
mOwner->writeInt16(height);
|
|
mOwner->writeInt32(0x480000); // horiz resolution
|
|
mOwner->writeInt32(0x480000); // vert resolution
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt16(1); // frame count
|
|
mOwner->writeInt8(0); // compressor string length
|
|
mOwner->write(" ", 31);
|
|
mOwner->writeInt16(0x18); // depth
|
|
mOwner->writeInt16(-1); // predefined
|
|
|
|
if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
|
|
writeMp4vEsdsBox();
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
|
|
writeD263Box();
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) {
|
|
writeAvccBox();
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
|
|
writeHvccBox();
|
|
}
|
|
|
|
writePaspBox();
|
|
writeColrBox();
|
|
mOwner->endBox(); // mp4v, s263 or avc1
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeColrBox() {
|
|
ColorAspects aspects;
|
|
memset(&aspects, 0, sizeof(aspects));
|
|
// TRICKY: using | instead of || because we want to execute all findInt32-s
|
|
if (mMeta->findInt32(kKeyColorPrimaries, (int32_t*)&aspects.mPrimaries)
|
|
| mMeta->findInt32(kKeyTransferFunction, (int32_t*)&aspects.mTransfer)
|
|
| mMeta->findInt32(kKeyColorMatrix, (int32_t*)&aspects.mMatrixCoeffs)
|
|
| mMeta->findInt32(kKeyColorRange, (int32_t*)&aspects.mRange)) {
|
|
int32_t primaries, transfer, coeffs;
|
|
bool fullRange;
|
|
ColorUtils::convertCodecColorAspectsToIsoAspects(
|
|
aspects, &primaries, &transfer, &coeffs, &fullRange);
|
|
mOwner->beginBox("colr");
|
|
mOwner->writeFourcc("nclx");
|
|
mOwner->writeInt16(primaries);
|
|
mOwner->writeInt16(transfer);
|
|
mOwner->writeInt16(coeffs);
|
|
mOwner->writeInt8(int8_t(fullRange ? 0x80 : 0x0));
|
|
mOwner->endBox(); // colr
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeAudioFourCCBox() {
|
|
const char *mime;
|
|
bool success = mMeta->findCString(kKeyMIMEType, &mime);
|
|
CHECK(success);
|
|
const char *fourcc = getFourCCForMime(mime);
|
|
if (fourcc == NULL) {
|
|
ALOGE("Unknown mime type '%s'.", mime);
|
|
TRESPASS();
|
|
}
|
|
|
|
mOwner->beginBox(fourcc); // audio format
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt16(0); // reserved
|
|
mOwner->writeInt16(0x1); // data ref index
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt32(0); // reserved
|
|
int32_t nChannels;
|
|
CHECK_EQ(true, mMeta->findInt32(kKeyChannelCount, &nChannels));
|
|
mOwner->writeInt16(nChannels); // channel count
|
|
mOwner->writeInt16(16); // sample size
|
|
mOwner->writeInt16(0); // predefined
|
|
mOwner->writeInt16(0); // reserved
|
|
|
|
int32_t samplerate;
|
|
success = mMeta->findInt32(kKeySampleRate, &samplerate);
|
|
CHECK(success);
|
|
mOwner->writeInt32(samplerate << 16);
|
|
if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AAC, mime)) {
|
|
writeMp4aEsdsBox();
|
|
} else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, mime) ||
|
|
!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, mime)) {
|
|
writeDamrBox();
|
|
}
|
|
mOwner->endBox();
|
|
}
|
|
|
|
static void generateEsdsSize(size_t dataLength, size_t* sizeGenerated, uint8_t* buffer) {
|
|
size_t offset = 0, cur = 0;
|
|
size_t more = 0x00;
|
|
*sizeGenerated = 0;
|
|
/* Start with the LSB(7 bits) of dataLength and build the byte sequence upto MSB.
|
|
* Continuation flag(most significant bit) will be set on the first N-1 bytes.
|
|
*/
|
|
do {
|
|
buffer[cur++] = (dataLength & 0x7f) | more;
|
|
dataLength >>= 7;
|
|
more = 0x80;
|
|
++(*sizeGenerated);
|
|
} while (dataLength > 0u);
|
|
--cur;
|
|
// Reverse the newly formed byte sequence.
|
|
while (cur > offset) {
|
|
uint8_t tmp = buffer[cur];
|
|
buffer[cur--] = buffer[offset];
|
|
buffer[offset++] = tmp;
|
|
}
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeMp4aEsdsBox() {
|
|
CHECK(mCodecSpecificData);
|
|
CHECK_GT(mCodecSpecificDataSize, 0u);
|
|
|
|
uint8_t sizeESDBuffer[kESDSScratchBufferSize];
|
|
uint8_t sizeDCDBuffer[kESDSScratchBufferSize];
|
|
uint8_t sizeDSIBuffer[kESDSScratchBufferSize];
|
|
size_t sizeESD = 0;
|
|
size_t sizeDCD = 0;
|
|
size_t sizeDSI = 0;
|
|
generateEsdsSize(mCodecSpecificDataSize, &sizeDSI, sizeDSIBuffer);
|
|
generateEsdsSize(mCodecSpecificDataSize + sizeDSI + 14, &sizeDCD, sizeDCDBuffer);
|
|
generateEsdsSize(mCodecSpecificDataSize + sizeDSI + sizeDCD + 21, &sizeESD, sizeESDBuffer);
|
|
|
|
mOwner->beginBox("esds");
|
|
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt8(0x03); // ES_DescrTag
|
|
mOwner->write(sizeESDBuffer, sizeESD);
|
|
mOwner->writeInt16(0x0000);// ES_ID
|
|
mOwner->writeInt8(0x00);
|
|
|
|
mOwner->writeInt8(0x04); // DecoderConfigDescrTag
|
|
mOwner->write(sizeDCDBuffer, sizeDCD);
|
|
mOwner->writeInt8(0x40); // objectTypeIndication ISO/IEC 14492-2
|
|
mOwner->writeInt8(0x15); // streamType AudioStream
|
|
|
|
mOwner->writeInt16(0x03); // XXX
|
|
mOwner->writeInt8(0x00); // buffer size 24-bit (0x300)
|
|
|
|
int32_t avgBitrate = 0;
|
|
(void)mMeta->findInt32(kKeyBitRate, &avgBitrate);
|
|
int32_t maxBitrate = 0;
|
|
(void)mMeta->findInt32(kKeyMaxBitRate, &maxBitrate);
|
|
mOwner->writeInt32(maxBitrate);
|
|
mOwner->writeInt32(avgBitrate);
|
|
|
|
mOwner->writeInt8(0x05); // DecoderSpecificInfoTag
|
|
mOwner->write(sizeDSIBuffer, sizeDSI);
|
|
mOwner->write(mCodecSpecificData, mCodecSpecificDataSize);
|
|
|
|
static const uint8_t kData2[] = {
|
|
0x06, // SLConfigDescriptorTag
|
|
0x01,
|
|
0x02
|
|
};
|
|
mOwner->write(kData2, sizeof(kData2));
|
|
|
|
mOwner->endBox(); // esds
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeMp4vEsdsBox() {
|
|
CHECK(mCodecSpecificData);
|
|
CHECK_GT(mCodecSpecificDataSize, 0u);
|
|
|
|
uint8_t sizeESDBuffer[kESDSScratchBufferSize];
|
|
uint8_t sizeDCDBuffer[kESDSScratchBufferSize];
|
|
uint8_t sizeDSIBuffer[kESDSScratchBufferSize];
|
|
size_t sizeESD = 0;
|
|
size_t sizeDCD = 0;
|
|
size_t sizeDSI = 0;
|
|
generateEsdsSize(mCodecSpecificDataSize, &sizeDSI, sizeDSIBuffer);
|
|
generateEsdsSize(mCodecSpecificDataSize + sizeDSI + 14, &sizeDCD, sizeDCDBuffer);
|
|
generateEsdsSize(mCodecSpecificDataSize + sizeDSI + sizeDCD + 21, &sizeESD, sizeESDBuffer);
|
|
|
|
mOwner->beginBox("esds");
|
|
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
|
|
mOwner->writeInt8(0x03); // ES_DescrTag
|
|
mOwner->write(sizeESDBuffer, sizeESD);
|
|
mOwner->writeInt16(0x0000); // ES_ID
|
|
mOwner->writeInt8(0x1f);
|
|
|
|
mOwner->writeInt8(0x04); // DecoderConfigDescrTag
|
|
mOwner->write(sizeDCDBuffer, sizeDCD);
|
|
mOwner->writeInt8(0x20); // objectTypeIndication ISO/IEC 14492-2
|
|
mOwner->writeInt8(0x11); // streamType VisualStream
|
|
|
|
static const uint8_t kData[] = {
|
|
0x01, 0x77, 0x00, // buffer size 96000 bytes
|
|
};
|
|
mOwner->write(kData, sizeof(kData));
|
|
|
|
int32_t avgBitrate = 0;
|
|
(void)mMeta->findInt32(kKeyBitRate, &avgBitrate);
|
|
int32_t maxBitrate = 0;
|
|
(void)mMeta->findInt32(kKeyMaxBitRate, &maxBitrate);
|
|
mOwner->writeInt32(maxBitrate);
|
|
mOwner->writeInt32(avgBitrate);
|
|
|
|
mOwner->writeInt8(0x05); // DecoderSpecificInfoTag
|
|
|
|
mOwner->write(sizeDSIBuffer, sizeDSI);
|
|
mOwner->write(mCodecSpecificData, mCodecSpecificDataSize);
|
|
|
|
static const uint8_t kData2[] = {
|
|
0x06, // SLConfigDescriptorTag
|
|
0x01,
|
|
0x02
|
|
};
|
|
mOwner->write(kData2, sizeof(kData2));
|
|
|
|
mOwner->endBox(); // esds
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeTkhdBox(uint32_t now) {
|
|
mOwner->beginBox("tkhd");
|
|
// Flags = 7 to indicate that the track is enabled, and
|
|
// part of the presentation
|
|
mOwner->writeInt32(0x07); // version=0, flags=7
|
|
mOwner->writeInt32(now); // creation time
|
|
mOwner->writeInt32(now); // modification time
|
|
mOwner->writeInt32(mTrackId); // track id starts with 1
|
|
mOwner->writeInt32(0); // reserved
|
|
int64_t trakDurationUs = getDurationUs();
|
|
int32_t mvhdTimeScale = mOwner->getTimeScale();
|
|
int32_t tkhdDuration =
|
|
(trakDurationUs * mvhdTimeScale + 5E5) / 1E6;
|
|
mOwner->writeInt32(tkhdDuration); // in mvhd timescale
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt16(0); // layer
|
|
mOwner->writeInt16(0); // alternate group
|
|
mOwner->writeInt16(mIsAudio ? 0x100 : 0); // volume
|
|
mOwner->writeInt16(0); // reserved
|
|
|
|
mOwner->writeCompositionMatrix(mRotation); // matrix
|
|
|
|
if (!mIsVideo) {
|
|
mOwner->writeInt32(0);
|
|
mOwner->writeInt32(0);
|
|
} else {
|
|
int32_t width, height;
|
|
bool success = mMeta->findInt32(kKeyDisplayWidth, &width);
|
|
success = success && mMeta->findInt32(kKeyDisplayHeight, &height);
|
|
|
|
// Use width/height if display width/height are not present.
|
|
if (!success) {
|
|
success = mMeta->findInt32(kKeyWidth, &width);
|
|
success = success && mMeta->findInt32(kKeyHeight, &height);
|
|
}
|
|
CHECK(success);
|
|
|
|
mOwner->writeInt32(width << 16); // 32-bit fixed-point value
|
|
mOwner->writeInt32(height << 16); // 32-bit fixed-point value
|
|
}
|
|
mOwner->endBox(); // tkhd
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeVmhdBox() {
|
|
mOwner->beginBox("vmhd");
|
|
mOwner->writeInt32(0x01); // version=0, flags=1
|
|
mOwner->writeInt16(0); // graphics mode
|
|
mOwner->writeInt16(0); // opcolor
|
|
mOwner->writeInt16(0);
|
|
mOwner->writeInt16(0);
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeSmhdBox() {
|
|
mOwner->beginBox("smhd");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt16(0); // balance
|
|
mOwner->writeInt16(0); // reserved
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeNmhdBox() {
|
|
mOwner->beginBox("nmhd");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeHdlrBox() {
|
|
mOwner->beginBox("hdlr");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt32(0); // component type: should be mhlr
|
|
mOwner->writeFourcc(mIsAudio ? "soun" : (mIsVideo ? "vide" : "meta")); // component subtype
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt32(0); // reserved
|
|
mOwner->writeInt32(0); // reserved
|
|
// Removing "r" for the name string just makes the string 4 byte aligned
|
|
mOwner->writeCString(mIsAudio ? "SoundHandle": (mIsVideo ? "VideoHandle" : "MetadHandle"));
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeEdtsBox() {
|
|
ALOGV("%s : getStartTimeOffsetTimeUs of track:%" PRId64 " us", getTrackType(),
|
|
getStartTimeOffsetTimeUs());
|
|
|
|
int32_t mvhdTimeScale = mOwner->getTimeScale();
|
|
ALOGV("mvhdTimeScale:%" PRId32, mvhdTimeScale);
|
|
/* trackStartOffsetUs of this track is the sum of longest offset needed by a track among all
|
|
* tracks with B frames in this movie and the start offset of this track.
|
|
*/
|
|
int64_t trackStartOffsetUs = getStartTimeOffsetTimeUs();
|
|
ALOGV("trackStartOffsetUs:%" PRIu64, trackStartOffsetUs);
|
|
|
|
// Longest offset needed by a track among all tracks with B frames.
|
|
int32_t movieStartOffsetBFramesUs = mOwner->getStartTimeOffsetBFramesUs();
|
|
ALOGV("movieStartOffsetBFramesUs:%" PRId32, movieStartOffsetBFramesUs);
|
|
|
|
// This media/track's real duration (sum of duration of all samples in this track).
|
|
uint32_t tkhdDurationTicks = (mTrackDurationUs * mvhdTimeScale + 5E5) / 1E6;
|
|
ALOGV("mTrackDurationUs:%" PRId64 "us", mTrackDurationUs);
|
|
|
|
int64_t movieStartTimeUs = mOwner->getStartTimestampUs();
|
|
ALOGV("movieStartTimeUs:%" PRId64, movieStartTimeUs);
|
|
|
|
int64_t trackStartTimeUs = movieStartTimeUs + trackStartOffsetUs;
|
|
ALOGV("trackStartTimeUs:%" PRId64, trackStartTimeUs);
|
|
|
|
if (movieStartOffsetBFramesUs == 0) {
|
|
// No B frames in any tracks.
|
|
if (trackStartOffsetUs > 0) {
|
|
// Track with positive start offset.
|
|
uint32_t segDuration = (trackStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
|
|
ALOGV("segDuration:%" PRIu64 "us", trackStartOffsetUs);
|
|
/* The first entry is an empty edit (indicated by media_time equal to -1), and its
|
|
* duration (segment_duration) is equal to the difference of the presentation times of
|
|
* the earliest media sample among all tracks and the earliest media sample of the track.
|
|
*/
|
|
ALOGV("Empty edit list entry");
|
|
addOneElstTableEntry(segDuration, -1, 1, 0);
|
|
addOneElstTableEntry(tkhdDurationTicks, 0, 1, 0);
|
|
} else if (mFirstSampleStartOffsetUs > 0) {
|
|
// Track with start time < 0 / negative start offset.
|
|
ALOGV("Normal edit list entry");
|
|
int32_t mediaTime = (mFirstSampleStartOffsetUs * mTimeScale + 5E5) / 1E6;
|
|
int32_t firstSampleOffsetTicks =
|
|
(mFirstSampleStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
|
|
// samples before 0 don't count in for duration, hence subtract firstSampleOffsetTicks.
|
|
addOneElstTableEntry(tkhdDurationTicks - firstSampleOffsetTicks, mediaTime, 1, 0);
|
|
} else {
|
|
// Track starting at zero.
|
|
ALOGV("No edit list entry required for this track");
|
|
}
|
|
} else if (movieStartOffsetBFramesUs < 0) {
|
|
// B frames present in at least one of the tracks.
|
|
ALOGV("writeEdtsBox - Reordered frames(B frames) present");
|
|
if (trackStartOffsetUs == std::abs(movieStartOffsetBFramesUs)) {
|
|
// Track starting at 0, no start offset.
|
|
// TODO : need to take care of mFirstSampleStartOffsetUs > 0 and trackStartOffsetUs > 0
|
|
// separately
|
|
if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
|
|
// Video with no B frame or non-video track.
|
|
if (mFirstSampleStartOffsetUs > 0) {
|
|
// Track with start time < 0 / negative start offset.
|
|
ALOGV("Normal edit list entry");
|
|
ALOGV("mFirstSampleStartOffsetUs:%" PRId64 "us", mFirstSampleStartOffsetUs);
|
|
int32_t mediaTimeTicks = (mFirstSampleStartOffsetUs * mTimeScale + 5E5) / 1E6;
|
|
int32_t firstSampleOffsetTicks =
|
|
(mFirstSampleStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
|
|
// Samples before 0 don't count for duration, subtract firstSampleOffsetTicks.
|
|
addOneElstTableEntry(tkhdDurationTicks - firstSampleOffsetTicks, mediaTimeTicks,
|
|
1, 0);
|
|
}
|
|
} else {
|
|
// Track with B Frames.
|
|
int32_t mediaTimeTicks = (trackStartOffsetUs * mTimeScale + 5E5) / 1E6;
|
|
ALOGV("mediaTime:%" PRId64 "us", trackStartOffsetUs);
|
|
ALOGV("Normal edit list entry to negate start offset by B Frames in others tracks");
|
|
addOneElstTableEntry(tkhdDurationTicks, mediaTimeTicks, 1, 0);
|
|
}
|
|
} else if (trackStartOffsetUs > std::abs(movieStartOffsetBFramesUs)) {
|
|
// Track with start offset.
|
|
ALOGV("Tracks starting > 0");
|
|
int32_t editDurationTicks = 0;
|
|
if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
|
|
// Video with no B frame or non-video track.
|
|
editDurationTicks =
|
|
((trackStartOffsetUs + movieStartOffsetBFramesUs) * mvhdTimeScale + 5E5) /
|
|
1E6;
|
|
ALOGV("editDuration:%" PRId64 "us", (trackStartOffsetUs + movieStartOffsetBFramesUs));
|
|
} else {
|
|
// Track with B frame.
|
|
int32_t trackStartOffsetBFramesUs = getMinCttsOffsetTimeUs() - kMaxCttsOffsetTimeUs;
|
|
ALOGV("trackStartOffsetBFramesUs:%" PRId32, trackStartOffsetBFramesUs);
|
|
editDurationTicks =
|
|
((trackStartOffsetUs + movieStartOffsetBFramesUs +
|
|
trackStartOffsetBFramesUs) * mvhdTimeScale + 5E5) / 1E6;
|
|
ALOGV("editDuration:%" PRId64 "us", (trackStartOffsetUs + movieStartOffsetBFramesUs + trackStartOffsetBFramesUs));
|
|
}
|
|
ALOGV("editDurationTicks:%" PRIu32, editDurationTicks);
|
|
if (editDurationTicks > 0) {
|
|
ALOGV("Empty edit list entry");
|
|
addOneElstTableEntry(editDurationTicks, -1, 1, 0);
|
|
addOneElstTableEntry(tkhdDurationTicks, 0, 1, 0);
|
|
} else if (editDurationTicks < 0) {
|
|
// Only video tracks with B Frames would hit this case.
|
|
ALOGV("Edit list entry to negate start offset by B frames in other tracks");
|
|
addOneElstTableEntry(tkhdDurationTicks, std::abs(editDurationTicks), 1, 0);
|
|
} else {
|
|
ALOGV("No edit list entry needed for this track");
|
|
}
|
|
} else {
|
|
// Not expecting this case as we adjust negative start timestamps to zero.
|
|
ALOGW("trackStartOffsetUs < std::abs(movieStartOffsetBFramesUs)");
|
|
}
|
|
} else {
|
|
// Neither B frames present nor absent! or any other case?.
|
|
ALOGW("movieStartOffsetBFramesUs > 0");
|
|
}
|
|
|
|
if (mElstTableEntries->count() == 0) {
|
|
return;
|
|
}
|
|
|
|
mOwner->beginBox("edts");
|
|
mOwner->beginBox("elst");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mElstTableEntries->write(mOwner);
|
|
mOwner->endBox(); // elst;
|
|
mOwner->endBox(); // edts
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeMdhdBox(uint32_t now) {
|
|
int64_t trakDurationUs = getDurationUs();
|
|
int64_t mdhdDuration = (trakDurationUs * mTimeScale + 5E5) / 1E6;
|
|
mOwner->beginBox("mdhd");
|
|
|
|
if (mdhdDuration > UINT32_MAX) {
|
|
mOwner->writeInt32((1 << 24)); // version=1, flags=0
|
|
mOwner->writeInt64((int64_t)now); // creation time
|
|
mOwner->writeInt64((int64_t)now); // modification time
|
|
mOwner->writeInt32(mTimeScale); // media timescale
|
|
mOwner->writeInt64(mdhdDuration); // media timescale
|
|
} else {
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt32(now); // creation time
|
|
mOwner->writeInt32(now); // modification time
|
|
mOwner->writeInt32(mTimeScale); // media timescale
|
|
mOwner->writeInt32((int32_t)mdhdDuration); // use media timescale
|
|
}
|
|
// Language follows the three letter standard ISO-639-2/T
|
|
// 'e', 'n', 'g' for "English", for instance.
|
|
// Each character is packed as the difference between its ASCII value and 0x60.
|
|
// For "English", these are 00101, 01110, 00111.
|
|
// XXX: Where is the padding bit located: 0x15C7?
|
|
const char *lang = NULL;
|
|
int16_t langCode = 0;
|
|
if (mMeta->findCString(kKeyMediaLanguage, &lang) && lang && strnlen(lang, 3) > 2) {
|
|
langCode = ((lang[0] & 0x1f) << 10) | ((lang[1] & 0x1f) << 5) | (lang[2] & 0x1f);
|
|
}
|
|
mOwner->writeInt16(langCode); // language code
|
|
mOwner->writeInt16(0); // predefined
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeDamrBox() {
|
|
// 3gpp2 Spec AMRSampleEntry fields
|
|
mOwner->beginBox("damr");
|
|
mOwner->writeCString(" "); // vendor: 4 bytes
|
|
mOwner->writeInt8(0); // decoder version
|
|
mOwner->writeInt16(0x83FF); // mode set: all enabled
|
|
mOwner->writeInt8(0); // mode change period
|
|
mOwner->writeInt8(1); // frames per sample
|
|
mOwner->endBox();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeUrlBox() {
|
|
// The table index here refers to the sample description index
|
|
// in the sample table entries.
|
|
mOwner->beginBox("url ");
|
|
mOwner->writeInt32(1); // version=0, flags=1 (self-contained)
|
|
mOwner->endBox(); // url
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeDrefBox() {
|
|
mOwner->beginBox("dref");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt32(1); // entry count (either url or urn)
|
|
writeUrlBox();
|
|
mOwner->endBox(); // dref
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeDinfBox() {
|
|
mOwner->beginBox("dinf");
|
|
writeDrefBox();
|
|
mOwner->endBox(); // dinf
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeAvccBox() {
|
|
CHECK(mCodecSpecificData);
|
|
CHECK_GE(mCodecSpecificDataSize, 5u);
|
|
|
|
// Patch avcc's lengthSize field to match the number
|
|
// of bytes we use to indicate the size of a nal unit.
|
|
uint8_t *ptr = (uint8_t *)mCodecSpecificData;
|
|
ptr[4] = (ptr[4] & 0xfc) | (mOwner->useNalLengthFour() ? 3 : 1);
|
|
mOwner->beginBox("avcC");
|
|
mOwner->write(mCodecSpecificData, mCodecSpecificDataSize);
|
|
mOwner->endBox(); // avcC
|
|
}
|
|
|
|
|
|
void MPEG4Writer::Track::writeHvccBox() {
|
|
CHECK(mCodecSpecificData);
|
|
CHECK_GE(mCodecSpecificDataSize, 5u);
|
|
|
|
// Patch avcc's lengthSize field to match the number
|
|
// of bytes we use to indicate the size of a nal unit.
|
|
uint8_t *ptr = (uint8_t *)mCodecSpecificData;
|
|
ptr[21] = (ptr[21] & 0xfc) | (mOwner->useNalLengthFour() ? 3 : 1);
|
|
mOwner->beginBox("hvcC");
|
|
mOwner->write(mCodecSpecificData, mCodecSpecificDataSize);
|
|
mOwner->endBox(); // hvcC
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeD263Box() {
|
|
mOwner->beginBox("d263");
|
|
mOwner->writeInt32(0); // vendor
|
|
mOwner->writeInt8(0); // decoder version
|
|
mOwner->writeInt8(10); // level: 10
|
|
mOwner->writeInt8(0); // profile: 0
|
|
mOwner->endBox(); // d263
|
|
}
|
|
|
|
// This is useful if the pixel is not square
|
|
void MPEG4Writer::Track::writePaspBox() {
|
|
mOwner->beginBox("pasp");
|
|
mOwner->writeInt32(1 << 16); // hspacing
|
|
mOwner->writeInt32(1 << 16); // vspacing
|
|
mOwner->endBox(); // pasp
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::getStartTimeOffsetTimeUs() const {
|
|
int64_t trackStartTimeOffsetUs = 0;
|
|
int64_t moovStartTimeUs = mOwner->getStartTimestampUs();
|
|
if (mStartTimestampUs != -1 && mStartTimestampUs != moovStartTimeUs) {
|
|
CHECK_GT(mStartTimestampUs, moovStartTimeUs);
|
|
trackStartTimeOffsetUs = mStartTimestampUs - moovStartTimeUs;
|
|
}
|
|
return trackStartTimeOffsetUs;
|
|
}
|
|
|
|
int32_t MPEG4Writer::Track::getStartTimeOffsetScaledTime() const {
|
|
return (getStartTimeOffsetTimeUs() * mTimeScale + 500000LL) / 1000000LL;
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeSttsBox() {
|
|
mOwner->beginBox("stts");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mSttsTableEntries->write(mOwner);
|
|
mOwner->endBox(); // stts
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeCttsBox() {
|
|
// There is no B frame at all
|
|
if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
|
|
return;
|
|
}
|
|
|
|
// Do not write ctts box when there is no need to have it.
|
|
if (mCttsTableEntries->count() == 0) {
|
|
return;
|
|
}
|
|
|
|
ALOGV("ctts box has %d entries with range [%" PRId64 ", %" PRId64 "]",
|
|
mCttsTableEntries->count(), mMinCttsOffsetTicks, mMaxCttsOffsetTicks);
|
|
|
|
mOwner->beginBox("ctts");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
// Adjust ctts entries to have only offset needed for reordering frames.
|
|
int64_t deltaTimeUs = mMinCttsOffsetTimeUs;
|
|
ALOGV("ctts deltaTimeUs:%" PRId64, deltaTimeUs);
|
|
int64_t delta = (deltaTimeUs * mTimeScale + 500000LL) / 1000000LL;
|
|
mCttsTableEntries->adjustEntries([delta](size_t /* ix */, uint32_t (&value)[2]) {
|
|
// entries are <count, ctts> pairs; adjust only ctts
|
|
uint32_t duration = htonl(value[1]); // back to host byte order
|
|
// Prevent overflow and underflow
|
|
if (delta > duration) {
|
|
duration = 0;
|
|
} else if (delta < 0 && UINT32_MAX + delta < duration) {
|
|
duration = UINT32_MAX;
|
|
} else {
|
|
duration -= delta;
|
|
}
|
|
value[1] = htonl(duration);
|
|
});
|
|
mCttsTableEntries->write(mOwner);
|
|
mOwner->endBox(); // ctts
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeStssBox() {
|
|
mOwner->beginBox("stss");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mStssTableEntries->write(mOwner);
|
|
mOwner->endBox(); // stss
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeStszBox() {
|
|
mOwner->beginBox("stsz");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt32(0);
|
|
mStszTableEntries->write(mOwner);
|
|
mOwner->endBox(); // stsz
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeStscBox() {
|
|
mOwner->beginBox("stsc");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mStscTableEntries->write(mOwner);
|
|
mOwner->endBox(); // stsc
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeCo64Box() {
|
|
mOwner->beginBox("co64");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mCo64TableEntries->write(mOwner);
|
|
mOwner->endBox(); // stco or co64
|
|
}
|
|
|
|
void MPEG4Writer::writeUdtaBox() {
|
|
beginBox("udta");
|
|
writeGeoDataBox();
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeHdlr(const char *handlerType) {
|
|
beginBox("hdlr");
|
|
writeInt32(0); // Version, Flags
|
|
writeInt32(0); // Predefined
|
|
writeFourcc(handlerType);
|
|
writeInt32(0); // Reserved[0]
|
|
writeInt32(0); // Reserved[1]
|
|
writeInt32(0); // Reserved[2]
|
|
writeInt8(0); // Name (empty)
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeKeys() {
|
|
size_t count = mMetaKeys->countEntries();
|
|
|
|
beginBox("keys");
|
|
writeInt32(0); // Version, Flags
|
|
writeInt32(count); // Entry_count
|
|
for (size_t i = 0; i < count; i++) {
|
|
AMessage::Type type;
|
|
const char *key = mMetaKeys->getEntryNameAt(i, &type);
|
|
size_t n = strlen(key);
|
|
writeInt32(n + 8);
|
|
writeFourcc("mdta");
|
|
write(key, n); // write without the \0
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIlst() {
|
|
size_t count = mMetaKeys->countEntries();
|
|
|
|
beginBox("ilst");
|
|
for (size_t i = 0; i < count; i++) {
|
|
beginBox(i + 1); // key id (1-based)
|
|
beginBox("data");
|
|
AMessage::Type type;
|
|
const char *key = mMetaKeys->getEntryNameAt(i, &type);
|
|
switch (type) {
|
|
case AMessage::kTypeString:
|
|
{
|
|
AString val;
|
|
CHECK(mMetaKeys->findString(key, &val));
|
|
writeInt32(1); // type = UTF8
|
|
writeInt32(0); // default country/language
|
|
write(val.c_str(), strlen(val.c_str())); // write without \0
|
|
break;
|
|
}
|
|
|
|
case AMessage::kTypeFloat:
|
|
{
|
|
float val;
|
|
CHECK(mMetaKeys->findFloat(key, &val));
|
|
writeInt32(23); // type = float32
|
|
writeInt32(0); // default country/language
|
|
writeInt32(*reinterpret_cast<int32_t *>(&val));
|
|
break;
|
|
}
|
|
|
|
case AMessage::kTypeInt32:
|
|
{
|
|
int32_t val;
|
|
CHECK(mMetaKeys->findInt32(key, &val));
|
|
writeInt32(67); // type = signed int32
|
|
writeInt32(0); // default country/language
|
|
writeInt32(val);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
ALOGW("Unsupported key type, writing 0 instead");
|
|
writeInt32(77); // type = unsigned int32
|
|
writeInt32(0); // default country/language
|
|
writeInt32(0);
|
|
break;
|
|
}
|
|
}
|
|
endBox(); // data
|
|
endBox(); // key id
|
|
}
|
|
endBox(); // ilst
|
|
}
|
|
|
|
void MPEG4Writer::writeMoovLevelMetaBox() {
|
|
size_t count = mMetaKeys->countEntries();
|
|
if (count == 0) {
|
|
return;
|
|
}
|
|
|
|
beginBox("meta");
|
|
writeHdlr("mdta");
|
|
writeKeys();
|
|
writeIlst();
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIlocBox() {
|
|
beginBox("iloc");
|
|
// Use version 1 to allow construction method 1 that refers to
|
|
// data in idat box inside meta box.
|
|
writeInt32(0x01000000); // Version = 1, Flags = 0
|
|
writeInt16(0x4400); // offset_size = length_size = 4
|
|
// base_offset_size = index_size = 0
|
|
|
|
// 16-bit item_count
|
|
size_t itemCount = mItems.size();
|
|
if (itemCount > 65535) {
|
|
ALOGW("Dropping excess items: itemCount %zu", itemCount);
|
|
itemCount = 65535;
|
|
}
|
|
writeInt16((uint16_t)itemCount);
|
|
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
writeInt16(item.itemId);
|
|
bool isGrid = item.isGrid();
|
|
|
|
writeInt16(isGrid ? 1 : 0); // construction_method
|
|
writeInt16(0); // data_reference_index = 0
|
|
writeInt16(1); // extent_count = 1
|
|
|
|
if (isGrid) {
|
|
// offset into the 'idat' box
|
|
writeInt32(mNumGrids++ * 8);
|
|
writeInt32(8);
|
|
} else {
|
|
writeInt32(item.offset);
|
|
writeInt32(item.size);
|
|
}
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeInfeBox(
|
|
uint16_t itemId, const char *itemType, uint32_t flags) {
|
|
beginBox("infe");
|
|
writeInt32(0x02000000 | flags); // Version = 2, Flags = 0
|
|
writeInt16(itemId);
|
|
writeInt16(0); //item_protection_index = 0
|
|
writeFourcc(itemType);
|
|
writeCString(""); // item_name
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIinfBox() {
|
|
beginBox("iinf");
|
|
writeInt32(0); // Version = 0, Flags = 0
|
|
|
|
// 16-bit item_count
|
|
size_t itemCount = mItems.size();
|
|
if (itemCount > 65535) {
|
|
ALOGW("Dropping excess items: itemCount %zu", itemCount);
|
|
itemCount = 65535;
|
|
}
|
|
|
|
writeInt16((uint16_t)itemCount);
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
writeInfeBox(item.itemId, item.itemType,
|
|
(item.isImage() && item.isHidden) ? 1 : 0);
|
|
}
|
|
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIdatBox() {
|
|
beginBox("idat");
|
|
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
if (item.isGrid()) {
|
|
writeInt8(0); // version
|
|
// flags == 1 means 32-bit width,height
|
|
int8_t flags = (item.width > 65535 || item.height > 65535);
|
|
writeInt8(flags);
|
|
writeInt8(item.rows - 1);
|
|
writeInt8(item.cols - 1);
|
|
if (flags) {
|
|
writeInt32(item.width);
|
|
writeInt32(item.height);
|
|
} else {
|
|
writeInt16((uint16_t)item.width);
|
|
writeInt16((uint16_t)item.height);
|
|
}
|
|
}
|
|
}
|
|
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIrefBox() {
|
|
beginBox("iref");
|
|
writeInt32(0); // Version = 0, Flags = 0
|
|
{
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
for (size_t r = 0; r < item.refsList.size(); r++) {
|
|
const ItemRefs &refs = item.refsList[r];
|
|
beginBox(refs.key);
|
|
writeInt16(item.itemId);
|
|
size_t refCount = refs.value.size();
|
|
if (refCount > 65535) {
|
|
ALOGW("too many entries in %s", refs.key);
|
|
refCount = 65535;
|
|
}
|
|
writeInt16((uint16_t)refCount);
|
|
for (size_t refIndex = 0; refIndex < refCount; refIndex++) {
|
|
writeInt16(refs.value[refIndex]);
|
|
}
|
|
endBox();
|
|
}
|
|
}
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writePitmBox() {
|
|
beginBox("pitm");
|
|
writeInt32(0); // Version = 0, Flags = 0
|
|
writeInt16(mPrimaryItemId);
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIpcoBox() {
|
|
beginBox("ipco");
|
|
size_t numProperties = mProperties.size();
|
|
if (numProperties > 32767) {
|
|
ALOGW("Dropping excess properties: numProperties %zu", numProperties);
|
|
numProperties = 32767;
|
|
}
|
|
for (size_t propIndex = 0; propIndex < numProperties; propIndex++) {
|
|
switch (mProperties[propIndex].type) {
|
|
case FOURCC('h', 'v', 'c', 'C'):
|
|
{
|
|
beginBox("hvcC");
|
|
sp<ABuffer> hvcc = mProperties[propIndex].hvcc;
|
|
// Patch avcc's lengthSize field to match the number
|
|
// of bytes we use to indicate the size of a nal unit.
|
|
uint8_t *ptr = (uint8_t *)hvcc->data();
|
|
ptr[21] = (ptr[21] & 0xfc) | (useNalLengthFour() ? 3 : 1);
|
|
write(hvcc->data(), hvcc->size());
|
|
endBox();
|
|
break;
|
|
}
|
|
case FOURCC('i', 's', 'p', 'e'):
|
|
{
|
|
beginBox("ispe");
|
|
writeInt32(0); // Version = 0, Flags = 0
|
|
writeInt32(mProperties[propIndex].width);
|
|
writeInt32(mProperties[propIndex].height);
|
|
endBox();
|
|
break;
|
|
}
|
|
case FOURCC('i', 'r', 'o', 't'):
|
|
{
|
|
beginBox("irot");
|
|
writeInt8(mProperties[propIndex].rotation);
|
|
endBox();
|
|
break;
|
|
}
|
|
default:
|
|
ALOGW("Skipping unrecognized property: type 0x%08x",
|
|
mProperties[propIndex].type);
|
|
}
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIpmaBox() {
|
|
beginBox("ipma");
|
|
uint32_t flags = (mProperties.size() > 127) ? 1 : 0;
|
|
writeInt32(flags); // Version = 0
|
|
|
|
writeInt32(mAssociationEntryCount);
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
const Vector<uint16_t> &properties = item.properties;
|
|
if (properties.empty()) {
|
|
continue;
|
|
}
|
|
writeInt16(item.itemId);
|
|
|
|
size_t entryCount = properties.size();
|
|
if (entryCount > 255) {
|
|
ALOGW("Dropping excess associations: entryCount %zu", entryCount);
|
|
entryCount = 255;
|
|
}
|
|
writeInt8((uint8_t)entryCount);
|
|
for (size_t propIndex = 0; propIndex < entryCount; propIndex++) {
|
|
if (flags & 1) {
|
|
writeInt16((1 << 15) | properties[propIndex]);
|
|
} else {
|
|
writeInt8((1 << 7) | properties[propIndex]);
|
|
}
|
|
}
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeIprpBox() {
|
|
beginBox("iprp");
|
|
writeIpcoBox();
|
|
writeIpmaBox();
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeFileLevelMetaBox() {
|
|
// patch up the mPrimaryItemId and count items with prop associations
|
|
uint16_t firstVisibleItemId = 0;
|
|
uint16_t firstImageItemId = 0;
|
|
for (auto it = mItems.begin(); it != mItems.end(); it++) {
|
|
ItemInfo &item = it->second;
|
|
|
|
if (!item.isImage()) continue;
|
|
|
|
if (item.isPrimary) {
|
|
mPrimaryItemId = item.itemId;
|
|
}
|
|
if (!firstImageItemId) {
|
|
firstImageItemId = item.itemId;
|
|
}
|
|
if (!firstVisibleItemId && !item.isHidden) {
|
|
firstVisibleItemId = item.itemId;
|
|
}
|
|
if (!item.properties.empty()) {
|
|
mAssociationEntryCount++;
|
|
}
|
|
}
|
|
|
|
if (!firstImageItemId) {
|
|
ALOGE("no valid image was found");
|
|
return;
|
|
}
|
|
|
|
if (mPrimaryItemId == 0) {
|
|
if (firstVisibleItemId > 0) {
|
|
ALOGW("didn't find primary, using first visible image");
|
|
mPrimaryItemId = firstVisibleItemId;
|
|
} else {
|
|
ALOGW("no primary and no visible item, using first image");
|
|
mPrimaryItemId = firstImageItemId;
|
|
}
|
|
}
|
|
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
if ((*it)->isHeic()) {
|
|
(*it)->flushItemRefs();
|
|
}
|
|
}
|
|
|
|
beginBox("meta");
|
|
writeInt32(0); // Version = 0, Flags = 0
|
|
writeHdlr("pict");
|
|
writeIlocBox();
|
|
writeIinfBox();
|
|
writePitmBox();
|
|
writeIprpBox();
|
|
if (mNumGrids > 0) {
|
|
writeIdatBox();
|
|
}
|
|
if (mHasRefs) {
|
|
writeIrefBox();
|
|
}
|
|
endBox();
|
|
}
|
|
|
|
uint16_t MPEG4Writer::addProperty_l(const ItemProperty &prop) {
|
|
char typeStr[5];
|
|
MakeFourCCString(prop.type, typeStr);
|
|
ALOGV("addProperty_l: %s", typeStr);
|
|
|
|
mProperties.push_back(prop);
|
|
|
|
// returning 1-based property index
|
|
return mProperties.size();
|
|
}
|
|
|
|
status_t MPEG4Writer::reserveItemId_l(size_t numItems, uint16_t *itemIdBase) {
|
|
if (numItems > UINT16_MAX - mNextItemId) {
|
|
ALOGE("couldn't reserve item ids for %zu items", numItems);
|
|
return ERROR_OUT_OF_RANGE;
|
|
}
|
|
*itemIdBase = mNextItemId;
|
|
mNextItemId += numItems;
|
|
return OK;
|
|
}
|
|
|
|
uint16_t MPEG4Writer::addItem_l(const ItemInfo &info) {
|
|
ALOGV("addItem_l: type %s, offset %u, size %u",
|
|
info.itemType, info.offset, info.size);
|
|
|
|
if (info.itemId < kItemIdBase || info.itemId >= mNextItemId) {
|
|
ALOGW("Item id %u is used without reservation!", info.itemId);
|
|
}
|
|
|
|
mItems[info.itemId] = info;
|
|
|
|
#if (LOG_NDEBUG==0)
|
|
if (!info.properties.empty()) {
|
|
AString str;
|
|
for (size_t i = 0; i < info.properties.size(); i++) {
|
|
if (i > 0) {
|
|
str.append(", ");
|
|
}
|
|
str.append(info.properties[i]);
|
|
}
|
|
ALOGV("addItem_l: id %d, properties: %s", info.itemId, str.c_str());
|
|
}
|
|
#endif // (LOG_NDEBUG==0)
|
|
|
|
return info.itemId;
|
|
}
|
|
|
|
void MPEG4Writer::addRefs_l(uint16_t itemId, const ItemRefs &refs) {
|
|
if (refs.value.empty()) {
|
|
return;
|
|
}
|
|
if (itemId < kItemIdBase || itemId >= mNextItemId) {
|
|
ALOGW("itemId %u for ref is invalid!", itemId);
|
|
return;
|
|
}
|
|
|
|
auto it = mItems.find(itemId);
|
|
if (it == mItems.end()) {
|
|
ALOGW("itemId %u was not added yet", itemId);
|
|
return;
|
|
}
|
|
it->second.refsList.push_back(refs);
|
|
mHasRefs = true;
|
|
}
|
|
|
|
/*
|
|
* Geodata is stored according to ISO-6709 standard.
|
|
*/
|
|
void MPEG4Writer::writeGeoDataBox() {
|
|
beginBox("\xA9xyz");
|
|
/*
|
|
* For historical reasons, any user data start
|
|
* with "\0xA9", must be followed by its assoicated
|
|
* language code.
|
|
* 0x0012: text string length
|
|
* 0x15c7: lang (locale) code: en
|
|
*/
|
|
writeInt32(0x001215c7);
|
|
writeLatitude(mLatitudex10000);
|
|
writeLongitude(mLongitudex10000);
|
|
writeInt8(0x2F);
|
|
endBox();
|
|
}
|
|
|
|
} // namespace android
|