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3856 lines
123 KiB
3856 lines
123 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 <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/ColorUtils.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/MediaSource.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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#include "include/avc_utils.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 int64_t kMax32BitFileSize = 0x00ffffffffLL; // 2^32-1 : max FAT32
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// filesystem file size
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// used by most SD cards
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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 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 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<IMediaSource> &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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void writeTrackHeader(bool use32BitOffset = true);
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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 isAudio() const { return mIsAudio; }
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bool isMPEG4() const { return mIsMPEG4; }
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void addChunkOffset(off64_t offset);
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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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private:
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enum {
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kMaxCttsOffsetTimeUs = 1000000LL, // 1 second
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kSampleArraySize = 1000,
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};
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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<IMediaSource> 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 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<uint32_t, 1> *mStcoTableEntries;
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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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int64_t mMinCttsOffsetTimeUs;
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int64_t mMaxCttsOffsetTimeUs;
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// Save the last 10 frames' timestamp for debug.
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std::list<std::pair<int64_t, int64_t>> 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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int64_t mPreviousTrackTimeUs;
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int64_t mTrackEveryTimeDurationUs;
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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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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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int32_t mRotation;
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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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// Duration is time scale based
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void addOneSttsTableEntry(size_t sampleCount, int32_t timescaledDur);
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void addOneCttsTableEntry(size_t sampleCount, int32_t timescaledDur);
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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 writeStcoBox(bool use32BitOffset);
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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(bool use32BitOffset);
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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(fd);
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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) {
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ALOGV("initInternal");
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mFd = dup(fd);
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mNextFd = -1;
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mInitCheck = mFd < 0? NO_INIT: OK;
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mIsRealTimeRecording = true;
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mUse4ByteNalLength = true;
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mUse32BitOffset = true;
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mIsFileSizeLimitExplicitlyRequested = false;
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mPaused = false;
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mStarted = false;
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mWriterThreadStarted = false;
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mSendNotify = false;
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mOffset = 0;
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mMdatOffset = 0;
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mMoovBoxBuffer = NULL;
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mMoovBoxBufferOffset = 0;
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mWriteMoovBoxToMemory = false;
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mFreeBoxOffset = 0;
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mStreamableFile = false;
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mEstimatedMoovBoxSize = 0;
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mMoovExtraSize = 0;
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mInterleaveDurationUs = 1000000;
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mTimeScale = -1;
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mStartTimestampUs = -1ll;
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mLatitudex10000 = 0;
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mLongitudex10000 = 0;
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mAreGeoTagsAvailable = false;
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mStartTimeOffsetMs = -1;
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mSwitchPending = false;
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mMetaKeys = new AMessage();
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addDeviceMeta();
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// Verify mFd is seekable
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off64_t off = lseek64(mFd, 0, SEEK_SET);
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if (off < 0) {
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ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd);
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release();
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}
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for (List<Track *>::iterator it = mTracks.begin();
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it != mTracks.end(); ++it) {
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(*it)->resetInternal();
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}
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}
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|
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status_t MPEG4Writer::dump(
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int fd, const Vector<String16>& args) {
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const size_t SIZE = 256;
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char buffer[SIZE];
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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 {
|
|
ALOGE("Track (%s) other than video/audio/metadata is not supported", mime);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
status_t MPEG4Writer::addSource(const sp<IMediaSource> &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;
|
|
source->getFormat()->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);
|
|
|
|
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::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 int32_t factor = mUse32BitOffset? 1: 2;
|
|
static const int64_t MIN_MOOV_BOX_SIZE = 3 * 1024; // 3 KB
|
|
static const int64_t MAX_MOOV_BOX_SIZE = (180 * 3000000 * 6LL / 8000);
|
|
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 factor * 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 for 32-bit file offset even if
|
|
* user does not ask to set it explicitly.
|
|
*/
|
|
if (mMaxFileSizeLimitBytes != 0) {
|
|
mIsFileSizeLimitExplicitlyRequested = true;
|
|
}
|
|
|
|
int32_t use64BitOffset;
|
|
if (param &&
|
|
param->findInt32(kKey64BitFileOffset, &use64BitOffset) &&
|
|
use64BitOffset) {
|
|
mUse32BitOffset = false;
|
|
}
|
|
|
|
if (mUse32BitOffset) {
|
|
// Implicit 32 bit file size limit
|
|
if (mMaxFileSizeLimitBytes == 0) {
|
|
mMaxFileSizeLimitBytes = kMax32BitFileSize;
|
|
}
|
|
|
|
// If file size is set to be larger than the 32 bit file
|
|
// size limit, treat it as an error.
|
|
if (mMaxFileSizeLimitBytes > kMax32BitFileSize) {
|
|
ALOGW("32-bit file size limit (%" PRId64 " bytes) too big. "
|
|
"It is changed to %" PRId64 " bytes",
|
|
mMaxFileSizeLimitBytes, kMax32BitFileSize);
|
|
mMaxFileSizeLimitBytes = kMax32BitFileSize;
|
|
}
|
|
}
|
|
|
|
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)) {
|
|
mTimeScale = 1000;
|
|
}
|
|
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);
|
|
|
|
/*
|
|
* mWriteMoovBoxToMemory is true if the amount of data in moov box is
|
|
* smaller than the reserved free space at the beginning of a file, AND
|
|
* when the content of moov 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, mWriteMoovBoxToMemory is always
|
|
* false. When reset() is called at the end of a recording session,
|
|
* Moov box needs to be constructed.
|
|
*
|
|
* 1) Right before a moov box is constructed, mWriteMoovBoxToMemory
|
|
* 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 the moov box is written immediately to
|
|
* the end of the file. When the value is set to true, all the
|
|
* content of the moov box is written to an in-memory cache,
|
|
* mMoovBoxBuffer, 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 moov 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 moov
|
|
* 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_ moov data must be written to the end of the file.
|
|
* mWriteMoovBoxToMemory must be set to false to direct the write
|
|
* to the file.
|
|
*
|
|
* 3) If the data size in moov box is smaller than the reserved
|
|
* space after moov box is completely constructed, the in-memory
|
|
* cache copy of the moov box is written to the reserved free
|
|
* space. Thus, immediately after the moov is completedly
|
|
* constructed, mWriteMoovBoxToMemory is always set to false.
|
|
*/
|
|
mWriteMoovBoxToMemory = false;
|
|
mMoovBoxBuffer = NULL;
|
|
mMoovBoxBufferOffset = 0;
|
|
|
|
writeFtypBox(param);
|
|
|
|
mFreeBoxOffset = mOffset;
|
|
|
|
if (mEstimatedMoovBoxSize == 0) {
|
|
int32_t bitRate = -1;
|
|
if (param) {
|
|
param->findInt32(kKeyBitRate, &bitRate);
|
|
}
|
|
mEstimatedMoovBoxSize = estimateMoovBoxSize(bitRate);
|
|
}
|
|
CHECK_GE(mEstimatedMoovBoxSize, 8);
|
|
if (mStreamableFile) {
|
|
// Reserve a 'free' box only for streamable file
|
|
lseek64(mFd, mFreeBoxOffset, SEEK_SET);
|
|
writeInt32(mEstimatedMoovBoxSize);
|
|
write("free", 4);
|
|
mMdatOffset = mFreeBoxOffset + mEstimatedMoovBoxSize;
|
|
} else {
|
|
mMdatOffset = mOffset;
|
|
}
|
|
|
|
mOffset = mMdatOffset;
|
|
lseek64(mFd, mMdatOffset, SEEK_SET);
|
|
if (mUse32BitOffset) {
|
|
write("????mdat", 8);
|
|
} else {
|
|
write("\x00\x00\x00\x01mdat????????", 16);
|
|
}
|
|
|
|
status_t err = startWriterThread();
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
err = startTracks(param);
|
|
if (err != OK) {
|
|
return err;
|
|
}
|
|
|
|
mStarted = true;
|
|
return OK;
|
|
}
|
|
|
|
bool MPEG4Writer::use32BitFileOffset() const {
|
|
return mUse32BitOffset;
|
|
}
|
|
|
|
status_t MPEG4Writer::pause() {
|
|
if (mInitCheck != OK) {
|
|
return OK;
|
|
}
|
|
mPaused = true;
|
|
status_t err = OK;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
status_t status = (*it)->pause();
|
|
if (status != OK) {
|
|
err = status;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
void MPEG4Writer::stopWriterThread() {
|
|
ALOGD("Stopping writer thread");
|
|
if (!mWriterThreadStarted) {
|
|
return;
|
|
}
|
|
|
|
{
|
|
Mutex::Autolock autolock(mLock);
|
|
|
|
mDone = true;
|
|
mChunkReadyCondition.signal();
|
|
}
|
|
|
|
void *dummy;
|
|
pthread_join(mThread, &dummy);
|
|
mWriterThreadStarted = false;
|
|
ALOGD("Writer thread stopped");
|
|
}
|
|
|
|
/*
|
|
* 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() {
|
|
close(mFd);
|
|
mFd = -1;
|
|
mInitCheck = NO_INIT;
|
|
mStarted = false;
|
|
free(mMoovBoxBuffer);
|
|
mMoovBoxBuffer = 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) {
|
|
if (mInitCheck != OK) {
|
|
return OK;
|
|
} else {
|
|
if (!mWriterThreadStarted ||
|
|
!mStarted) {
|
|
if (mWriterThreadStarted) {
|
|
stopWriterThread();
|
|
}
|
|
release();
|
|
return OK;
|
|
}
|
|
}
|
|
|
|
status_t err = OK;
|
|
int64_t maxDurationUs = 0;
|
|
int64_t minDurationUs = 0x7fffffffffffffffLL;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it) {
|
|
status_t status = (*it)->stop(stopSource);
|
|
if (err == OK && status != OK) {
|
|
err = status;
|
|
}
|
|
|
|
int64_t durationUs = (*it)->getDurationUs();
|
|
if (durationUs > maxDurationUs) {
|
|
maxDurationUs = durationUs;
|
|
}
|
|
if (durationUs < minDurationUs) {
|
|
minDurationUs = durationUs;
|
|
}
|
|
}
|
|
|
|
if (mTracks.size() > 1) {
|
|
ALOGD("Duration from tracks range is [%" PRId64 ", %" PRId64 "] us",
|
|
minDurationUs, maxDurationUs);
|
|
}
|
|
|
|
stopWriterThread();
|
|
|
|
// Do not write out movie header on error.
|
|
if (err != OK) {
|
|
release();
|
|
return err;
|
|
}
|
|
|
|
// Fix up the size of the 'mdat' chunk.
|
|
if (mUse32BitOffset) {
|
|
lseek64(mFd, mMdatOffset, SEEK_SET);
|
|
uint32_t size = htonl(static_cast<uint32_t>(mOffset - mMdatOffset));
|
|
::write(mFd, &size, 4);
|
|
} else {
|
|
lseek64(mFd, mMdatOffset + 8, SEEK_SET);
|
|
uint64_t size = mOffset - mMdatOffset;
|
|
size = hton64(size);
|
|
::write(mFd, &size, 8);
|
|
}
|
|
lseek64(mFd, mOffset, SEEK_SET);
|
|
|
|
// Construct moov box now
|
|
mMoovBoxBufferOffset = 0;
|
|
mWriteMoovBoxToMemory = mStreamableFile;
|
|
if (mWriteMoovBoxToMemory) {
|
|
// There is no need to allocate in-memory cache
|
|
// for moov box if the file is not streamable.
|
|
|
|
mMoovBoxBuffer = (uint8_t *) malloc(mEstimatedMoovBoxSize);
|
|
CHECK(mMoovBoxBuffer != NULL);
|
|
}
|
|
writeMoovBox(maxDurationUs);
|
|
|
|
// mWriteMoovBoxToMemory could be set to false in
|
|
// MPEG4Writer::write() method
|
|
if (mWriteMoovBoxToMemory) {
|
|
mWriteMoovBoxToMemory = false;
|
|
// Content of the moov box is saved in the cache, and the in-memory
|
|
// moov box needs to be written to the file in a single shot.
|
|
|
|
CHECK_LE(mMoovBoxBufferOffset + 8, mEstimatedMoovBoxSize);
|
|
|
|
// Moov box
|
|
lseek64(mFd, mFreeBoxOffset, SEEK_SET);
|
|
mOffset = mFreeBoxOffset;
|
|
write(mMoovBoxBuffer, 1, mMoovBoxBufferOffset);
|
|
|
|
// Free box
|
|
lseek64(mFd, mOffset, SEEK_SET);
|
|
writeInt32(mEstimatedMoovBoxSize - mMoovBoxBufferOffset);
|
|
write("free", 4);
|
|
} else {
|
|
ALOGI("The mp4 file will not be streamable.");
|
|
}
|
|
|
|
// Free in-memory cache for moov box
|
|
if (mMoovBoxBuffer != NULL) {
|
|
free(mMoovBoxBuffer);
|
|
mMoovBoxBuffer = NULL;
|
|
mMoovBoxBufferOffset = 0;
|
|
}
|
|
|
|
CHECK(mBoxes.empty());
|
|
|
|
release();
|
|
return err;
|
|
}
|
|
|
|
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();
|
|
}
|
|
writeMetaBox();
|
|
int32_t id = 1;
|
|
for (List<Track *>::iterator it = mTracks.begin();
|
|
it != mTracks.end(); ++it, ++id) {
|
|
(*it)->writeTrackHeader(mUse32BitOffset);
|
|
}
|
|
endBox(); // moov
|
|
}
|
|
|
|
void MPEG4Writer::writeFtypBox(MetaData *param) {
|
|
beginBox("ftyp");
|
|
|
|
int32_t fileType;
|
|
if (param && param->findInt32(kKeyFileType, &fileType) &&
|
|
fileType != OUTPUT_FORMAT_MPEG_4) {
|
|
writeFourcc("3gp4");
|
|
writeInt32(0);
|
|
writeFourcc("isom");
|
|
writeFourcc("3gp4");
|
|
} else {
|
|
writeFourcc("mp42");
|
|
writeInt32(0);
|
|
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) {
|
|
off64_t old_offset = mOffset;
|
|
|
|
::write(mFd,
|
|
(const uint8_t *)buffer->data() + buffer->range_offset(),
|
|
buffer->range_length());
|
|
|
|
mOffset += buffer->range_length();
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
off64_t MPEG4Writer::addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer) {
|
|
off64_t old_offset = mOffset;
|
|
|
|
const size_t kExtensionNALSearchRange = 64; // bytes to look for non-VCL NALUs
|
|
|
|
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() > kExtensionNALSearchRange ?
|
|
kExtensionNALSearchRange : 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);
|
|
|
|
return old_offset;
|
|
}
|
|
|
|
off64_t MPEG4Writer::addLengthPrefixedSample_l(MediaBuffer *buffer) {
|
|
off64_t old_offset = mOffset;
|
|
|
|
size_t length = buffer->range_length();
|
|
|
|
if (mUse4ByteNalLength) {
|
|
uint8_t x = length >> 24;
|
|
::write(mFd, &x, 1);
|
|
x = (length >> 16) & 0xff;
|
|
::write(mFd, &x, 1);
|
|
x = (length >> 8) & 0xff;
|
|
::write(mFd, &x, 1);
|
|
x = length & 0xff;
|
|
::write(mFd, &x, 1);
|
|
|
|
::write(mFd,
|
|
(const uint8_t *)buffer->data() + buffer->range_offset(),
|
|
length);
|
|
|
|
mOffset += length + 4;
|
|
} else {
|
|
CHECK_LT(length, 65536u);
|
|
|
|
uint8_t x = length >> 8;
|
|
::write(mFd, &x, 1);
|
|
x = length & 0xff;
|
|
::write(mFd, &x, 1);
|
|
::write(mFd, (const uint8_t *)buffer->data() + buffer->range_offset(), length);
|
|
mOffset += length + 2;
|
|
}
|
|
|
|
return old_offset;
|
|
}
|
|
|
|
size_t MPEG4Writer::write(
|
|
const void *ptr, size_t size, size_t nmemb) {
|
|
|
|
const size_t bytes = size * nmemb;
|
|
if (mWriteMoovBoxToMemory) {
|
|
|
|
off64_t moovBoxSize = 8 + mMoovBoxBufferOffset + bytes;
|
|
if (moovBoxSize > mEstimatedMoovBoxSize) {
|
|
// The reserved moov box at the beginning of the file
|
|
// is not big enough. Moov box should be written to
|
|
// the end of the file from now on, but not to the
|
|
// in-memory cache.
|
|
|
|
// We write partial moov box that is in the memory to
|
|
// the file first.
|
|
for (List<off64_t>::iterator it = mBoxes.begin();
|
|
it != mBoxes.end(); ++it) {
|
|
(*it) += mOffset;
|
|
}
|
|
lseek64(mFd, mOffset, SEEK_SET);
|
|
::write(mFd, mMoovBoxBuffer, mMoovBoxBufferOffset);
|
|
::write(mFd, ptr, bytes);
|
|
mOffset += (bytes + mMoovBoxBufferOffset);
|
|
|
|
// All subsequent moov box content will be written
|
|
// to the end of the file.
|
|
mWriteMoovBoxToMemory = false;
|
|
} else {
|
|
memcpy(mMoovBoxBuffer + mMoovBoxBufferOffset, ptr, bytes);
|
|
mMoovBoxBufferOffset += bytes;
|
|
}
|
|
} else {
|
|
::write(mFd, ptr, size * nmemb);
|
|
mOffset += bytes;
|
|
}
|
|
return bytes;
|
|
}
|
|
|
|
void MPEG4Writer::beginBox(uint32_t id) {
|
|
mBoxes.push_back(mWriteMoovBoxToMemory?
|
|
mMoovBoxBufferOffset: mOffset);
|
|
|
|
writeInt32(0);
|
|
writeInt32(id);
|
|
}
|
|
|
|
void MPEG4Writer::beginBox(const char *fourcc) {
|
|
CHECK_EQ(strlen(fourcc), 4u);
|
|
|
|
mBoxes.push_back(mWriteMoovBoxToMemory?
|
|
mMoovBoxBufferOffset: mOffset);
|
|
|
|
writeInt32(0);
|
|
writeFourcc(fourcc);
|
|
}
|
|
|
|
void MPEG4Writer::endBox() {
|
|
CHECK(!mBoxes.empty());
|
|
|
|
off64_t offset = *--mBoxes.end();
|
|
mBoxes.erase(--mBoxes.end());
|
|
|
|
if (mWriteMoovBoxToMemory) {
|
|
int32_t x = htonl(mMoovBoxBufferOffset - offset);
|
|
memcpy(mMoovBoxBuffer + offset, &x, 4);
|
|
} else {
|
|
lseek64(mFd, offset, SEEK_SET);
|
|
writeInt32(mOffset - offset);
|
|
mOffset -= 4;
|
|
lseek64(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;
|
|
}
|
|
|
|
mMetaKeys->setFloat(kMetaKey_CaptureFps, captureFps);
|
|
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::exceedsFileSizeLimit() {
|
|
// No limit
|
|
if (mMaxFileSizeLimitBytes == 0) {
|
|
return false;
|
|
}
|
|
int64_t nTotalBytesEstimate = static_cast<int64_t>(mEstimatedMoovBoxSize);
|
|
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>(mEstimatedMoovBoxSize);
|
|
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)->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;
|
|
}
|
|
|
|
size_t MPEG4Writer::numTracks() {
|
|
Mutex::Autolock autolock(mLock);
|
|
return mTracks.size();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
MPEG4Writer::Track::Track(
|
|
MPEG4Writer *owner, const sp<IMediaSource> &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)),
|
|
mStcoTableEntries(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)),
|
|
mCodecSpecificData(NULL),
|
|
mCodecSpecificDataSize(0),
|
|
mGotAllCodecSpecificData(false),
|
|
mReachedEOS(false),
|
|
mRotation(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);
|
|
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);
|
|
}
|
|
}
|
|
|
|
setTimeScale();
|
|
}
|
|
|
|
// 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 = 0;
|
|
if (mStszTableEntries != NULL) {
|
|
delete mStszTableEntries;
|
|
mStszTableEntries = new ListTableEntries<uint32_t, 1>(1000);
|
|
}
|
|
|
|
if (mStcoTableEntries != NULL) {
|
|
delete mStcoTableEntries;
|
|
mStcoTableEntries = 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);
|
|
}
|
|
mReachedEOS = false;
|
|
}
|
|
|
|
void MPEG4Writer::Track::updateTrackSizeEstimate() {
|
|
|
|
uint32_t stcoBoxCount = (mOwner->use32BitFileOffset()
|
|
? mStcoTableEntries->count()
|
|
: mCo64TableEntries->count());
|
|
int64_t stcoBoxSizeBytes = stcoBoxCount * 4;
|
|
int64_t stszBoxSizeBytes = mSamplesHaveSameSize? 4: (mStszTableEntries->count() * 4);
|
|
|
|
mEstimatedTrackSizeBytes = mMdatSizeBytes; // media data size
|
|
if (!mOwner->isFileStreamable()) {
|
|
// Reserved free space is not large enough to hold
|
|
// all meta data and thus wasted.
|
|
mEstimatedTrackSizeBytes += mStscTableEntries->count() * 12 + // stsc box size
|
|
mStssTableEntries->count() * 4 + // stss box size
|
|
mSttsTableEntries->count() * 8 + // stts box size
|
|
mCttsTableEntries->count() * 8 + // ctts box size
|
|
stcoBoxSizeBytes + // stco box size
|
|
stszBoxSizeBytes; // stsz box size
|
|
}
|
|
}
|
|
|
|
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 duration) {
|
|
|
|
if (duration == 0) {
|
|
ALOGW("0-duration samples found: %zu", sampleCount);
|
|
}
|
|
mSttsTableEntries->add(htonl(sampleCount));
|
|
mSttsTableEntries->add(htonl(duration));
|
|
}
|
|
|
|
void MPEG4Writer::Track::addOneCttsTableEntry(
|
|
size_t sampleCount, int32_t duration) {
|
|
|
|
if (!mIsVideo) {
|
|
return;
|
|
}
|
|
mCttsTableEntries->add(htonl(sampleCount));
|
|
mCttsTableEntries->add(htonl(duration));
|
|
}
|
|
|
|
status_t MPEG4Writer::setNextFd(int fd) {
|
|
ALOGV("addNextFd");
|
|
Mutex::Autolock l(mLock);
|
|
if (mLooper == NULL) {
|
|
mReflector = new AHandlerReflector<MPEG4Writer>(this);
|
|
mLooper = new ALooper;
|
|
mLooper->registerHandler(mReflector);
|
|
mLooper->start();
|
|
}
|
|
|
|
if (mNextFd != -1) {
|
|
// No need to set a new FD yet.
|
|
return INVALID_OPERATION;
|
|
}
|
|
mNextFd = fd;
|
|
return OK;
|
|
}
|
|
|
|
void MPEG4Writer::Track::addChunkOffset(off64_t offset) {
|
|
if (mOwner->use32BitFileOffset()) {
|
|
uint32_t value = offset;
|
|
mStcoTableEntries->add(htonl(value));
|
|
} else {
|
|
mCo64TableEntries->add(hton64(offset));
|
|
}
|
|
}
|
|
|
|
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:
|
|
{
|
|
finishCurrentSession();
|
|
mLock.lock();
|
|
int fd = mNextFd;
|
|
mNextFd = -1;
|
|
mLock.unlock();
|
|
initInternal(fd);
|
|
start(mStartMeta.get());
|
|
mSwitchPending = false;
|
|
notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0);
|
|
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)) {
|
|
mMeta->findData(kKeyHVCC, &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;
|
|
size = 0;
|
|
}
|
|
}
|
|
}
|
|
if (data != NULL && copyCodecSpecificData((uint8_t *)data, size) == OK) {
|
|
mGotAllCodecSpecificData = true;
|
|
}
|
|
}
|
|
|
|
MPEG4Writer::Track::~Track() {
|
|
stop();
|
|
|
|
delete mStszTableEntries;
|
|
delete mStcoTableEntries;
|
|
delete mCo64TableEntries;
|
|
delete mStscTableEntries;
|
|
delete mSttsTableEntries;
|
|
delete mStssTableEntries;
|
|
delete mCttsTableEntries;
|
|
|
|
mStszTableEntries = NULL;
|
|
mStcoTableEntries = NULL;
|
|
mCo64TableEntries = NULL;
|
|
mStscTableEntries = NULL;
|
|
mSttsTableEntries = NULL;
|
|
mStssTableEntries = NULL;
|
|
mCttsTableEntries = 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();
|
|
|
|
off64_t offset = (chunk->mTrack->isAvc() || chunk->mTrack->isHevc())
|
|
? addMultipleLengthPrefixedSamples_l(*it)
|
|
: addSample_l(*it);
|
|
|
|
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 && params && params->findInt32(kKeyRotation, &rotationDegrees)) {
|
|
mRotation = rotationDegrees;
|
|
}
|
|
|
|
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");
|
|
return ERROR_END_OF_STREAM;
|
|
}
|
|
|
|
if (mDone) {
|
|
return OK;
|
|
}
|
|
mDone = true;
|
|
if (stopSource) {
|
|
ALOGD("%s track source stopping", getTrackType());
|
|
mSource->stop();
|
|
ALOGD("%s track source stopped", getTrackType());
|
|
}
|
|
|
|
void *dummy;
|
|
pthread_join(mThread, &dummy);
|
|
status_t err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
|
|
|
|
ALOGD("%s track stopped. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
|
|
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() {
|
|
ALOGE("Dumping %s track's last 10 frames timestamp ", getTrackType());
|
|
std::string timeStampString;
|
|
for (std::list<std::pair<int64_t, int64_t>>::iterator num = mTimestampDebugHelper.begin();
|
|
num != mTimestampDebugHelper.end(); ++num) {
|
|
timeStampString += "(" + std::to_string(num->first)+
|
|
"us, " + std::to_string(num->second) + "us) ";
|
|
}
|
|
ALOGE("%s", timeStampString.c_str());
|
|
}
|
|
|
|
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 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;
|
|
|
|
if (mIsAudio) {
|
|
prctl(PR_SET_NAME, (unsigned long)"AudioTrackEncoding", 0, 0, 0);
|
|
} else if (mIsVideo) {
|
|
prctl(PR_SET_NAME, (unsigned long)"VideoTrackEncoding", 0, 0, 0);
|
|
} else {
|
|
prctl(PR_SET_NAME, (unsigned long)"MetadataTrackEncoding", 0, 0, 0);
|
|
}
|
|
|
|
if (mOwner->isRealTimeRecording()) {
|
|
androidSetThreadPriority(0, ANDROID_PRIORITY_AUDIO);
|
|
}
|
|
|
|
sp<MetaData> meta_data;
|
|
|
|
status_t err = OK;
|
|
MediaBuffer *buffer;
|
|
const char *trackName = getTrackType();
|
|
while (!mDone && (err = mSource->read(&buffer)) == OK) {
|
|
if (buffer->range_length() == 0) {
|
|
buffer->release();
|
|
buffer = NULL;
|
|
++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) {
|
|
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 && 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;
|
|
}
|
|
|
|
++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().get());
|
|
buffer->release();
|
|
buffer = NULL;
|
|
|
|
if (mIsAvc || mIsHevc) StripStartcode(copy);
|
|
|
|
size_t sampleSize = copy->range_length();
|
|
if (mIsAvc || mIsHevc) {
|
|
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));
|
|
|
|
// 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 (mStszTableEntries->count() == 0) {
|
|
mFirstSampleTimeRealUs = systemTime() / 1000;
|
|
mStartTimestampUs = timestampUs;
|
|
mOwner->setStartTimestampUs(mStartTimestampUs);
|
|
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;
|
|
}
|
|
std::pair<int64_t, int64_t> timestampPair;
|
|
timestampUs -= previousPausedDurationUs;
|
|
timestampPair.first = 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;
|
|
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) {
|
|
mMinCttsOffsetTimeUs = currCttsOffsetTimeTicks;
|
|
mMaxCttsOffsetTimeUs = currCttsOffsetTimeTicks;
|
|
} else {
|
|
if (currCttsOffsetTimeTicks > mMaxCttsOffsetTimeUs) {
|
|
mMaxCttsOffsetTimeUs = currCttsOffsetTimeTicks;
|
|
} else if (currCttsOffsetTimeTicks < mMinCttsOffsetTimeUs) {
|
|
mMinCttsOffsetTimeUs = currCttsOffsetTimeTicks;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
// 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 (mStszTableEntries->count() == 3 || 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;
|
|
timestampPair.second = timestampUs;
|
|
// Insert the timestamp into the mTimestampDebugHelper
|
|
if (mTimestampDebugHelper.size() >= kTimestampDebugCount) {
|
|
mTimestampDebugHelper.pop_front();
|
|
}
|
|
mTimestampDebugHelper.push_back(timestampPair);
|
|
|
|
if (isSync != 0) {
|
|
addOneStssTableEntry(mStszTableEntries->count());
|
|
}
|
|
|
|
if (mTrackingProgressStatus) {
|
|
if (mPreviousTrackTimeUs <= 0) {
|
|
mPreviousTrackTimeUs = mStartTimestampUs;
|
|
}
|
|
trackProgressStatus(timestampUs);
|
|
}
|
|
if (!hasMultipleTracks) {
|
|
off64_t offset = (mIsAvc || mIsHevc) ? mOwner->addMultipleLengthPrefixedSamples_l(copy)
|
|
: mOwner->addSample_l(copy);
|
|
|
|
uint32_t count = (mOwner->use32BitFileOffset()
|
|
? mStcoTableEntries->count()
|
|
: mCo64TableEntries->count());
|
|
|
|
if (count == 0) {
|
|
addChunkOffset(offset);
|
|
}
|
|
copy->release();
|
|
copy = NULL;
|
|
continue;
|
|
}
|
|
|
|
mChunkSamples.push_back(copy);
|
|
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()) {
|
|
dumpTimeStamps();
|
|
err = ERROR_MALFORMED;
|
|
}
|
|
|
|
mOwner->trackProgressStatus(mTrackId, -1, err);
|
|
|
|
// 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) {
|
|
lastDurationUs = 0; // A single sample's duration
|
|
lastDurationTicks = 0;
|
|
} else {
|
|
++sampleCount; // Count for the last sample
|
|
}
|
|
|
|
if (mStszTableEntries->count() <= 2) {
|
|
addOneSttsTableEntry(1, lastDurationTicks);
|
|
if (sampleCount - 1 > 0) {
|
|
addOneSttsTableEntry(sampleCount - 1, lastDurationTicks);
|
|
}
|
|
} else {
|
|
addOneSttsTableEntry(sampleCount, lastDurationTicks);
|
|
}
|
|
|
|
// The last ctts box may not have been written yet, and this
|
|
// is to make sure that we write out the last ctts box.
|
|
if (currCttsOffsetTimeTicks == lastCttsOffsetTimeTicks) {
|
|
if (cttsSampleCount > 0) {
|
|
addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
int64_t MPEG4Writer::Track::getEstimatedTrackSizeBytes() const {
|
|
return mEstimatedTrackSizeBytes;
|
|
}
|
|
|
|
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)) {
|
|
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" : "Metadata");
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) {
|
|
uint32_t now = getMpeg4Time();
|
|
mOwner->beginBox("trak");
|
|
writeTkhdBox(now);
|
|
mOwner->beginBox("mdia");
|
|
writeMdhdBox(now);
|
|
writeHdlrBox();
|
|
mOwner->beginBox("minf");
|
|
if (mIsAudio) {
|
|
writeSmhdBox();
|
|
} else if (mIsVideo) {
|
|
writeVmhdBox();
|
|
} else {
|
|
writeNmhdBox();
|
|
}
|
|
writeDinfBox();
|
|
writeStblBox(use32BitOffset);
|
|
mOwner->endBox(); // minf
|
|
mOwner->endBox(); // mdia
|
|
mOwner->endBox(); // trak
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeStblBox(bool use32BitOffset) {
|
|
mOwner->beginBox("stbl");
|
|
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();
|
|
writeStcoBox(use32BitOffset);
|
|
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
|
|
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();
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeMp4aEsdsBox() {
|
|
mOwner->beginBox("esds");
|
|
CHECK(mCodecSpecificData);
|
|
CHECK_GT(mCodecSpecificDataSize, 0u);
|
|
|
|
// Make sure all sizes encode to a single byte.
|
|
CHECK_LT(mCodecSpecificDataSize + 23, 128u);
|
|
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
mOwner->writeInt8(0x03); // ES_DescrTag
|
|
mOwner->writeInt8(23 + mCodecSpecificDataSize);
|
|
mOwner->writeInt16(0x0000);// ES_ID
|
|
mOwner->writeInt8(0x00);
|
|
|
|
mOwner->writeInt8(0x04); // DecoderConfigDescrTag
|
|
mOwner->writeInt8(15 + mCodecSpecificDataSize);
|
|
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->writeInt8(mCodecSpecificDataSize);
|
|
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);
|
|
|
|
// Make sure all sizes encode to a single byte.
|
|
CHECK_LT(23 + mCodecSpecificDataSize, 128u);
|
|
|
|
mOwner->beginBox("esds");
|
|
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
|
|
mOwner->writeInt8(0x03); // ES_DescrTag
|
|
mOwner->writeInt8(23 + mCodecSpecificDataSize);
|
|
mOwner->writeInt16(0x0000); // ES_ID
|
|
mOwner->writeInt8(0x1f);
|
|
|
|
mOwner->writeInt8(0x04); // DecoderConfigDescrTag
|
|
mOwner->writeInt8(15 + mCodecSpecificDataSize);
|
|
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->writeInt8(mCodecSpecificDataSize);
|
|
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::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
|
|
}
|
|
|
|
int32_t MPEG4Writer::Track::getStartTimeOffsetScaledTime() const {
|
|
int64_t trackStartTimeOffsetUs = 0;
|
|
int64_t moovStartTimeUs = mOwner->getStartTimestampUs();
|
|
if (mStartTimestampUs != moovStartTimeUs) {
|
|
CHECK_GT(mStartTimestampUs, moovStartTimeUs);
|
|
trackStartTimeOffsetUs = mStartTimestampUs - moovStartTimeUs;
|
|
}
|
|
return (trackStartTimeOffsetUs * mTimeScale + 500000LL) / 1000000LL;
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeSttsBox() {
|
|
mOwner->beginBox("stts");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
uint32_t duration;
|
|
CHECK(mSttsTableEntries->get(duration, 1));
|
|
duration = htonl(duration); // Back to host byte order
|
|
mSttsTableEntries->set(htonl(duration + getStartTimeOffsetScaledTime()), 1);
|
|
mSttsTableEntries->write(mOwner);
|
|
mOwner->endBox(); // stts
|
|
}
|
|
|
|
void MPEG4Writer::Track::writeCttsBox() {
|
|
// There is no B frame at all
|
|
if (mMinCttsOffsetTimeUs == mMaxCttsOffsetTimeUs) {
|
|
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(), mMinCttsOffsetTimeUs, mMaxCttsOffsetTimeUs);
|
|
|
|
mOwner->beginBox("ctts");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
int64_t delta = mMinCttsOffsetTimeUs - getStartTimeOffsetScaledTime();
|
|
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::writeStcoBox(bool use32BitOffset) {
|
|
mOwner->beginBox(use32BitOffset? "stco": "co64");
|
|
mOwner->writeInt32(0); // version=0, flags=0
|
|
if (use32BitOffset) {
|
|
mStcoTableEntries->write(mOwner);
|
|
} else {
|
|
mCo64TableEntries->write(mOwner);
|
|
}
|
|
mOwner->endBox(); // stco or co64
|
|
}
|
|
|
|
void MPEG4Writer::writeUdtaBox() {
|
|
beginBox("udta");
|
|
writeGeoDataBox();
|
|
endBox();
|
|
}
|
|
|
|
void MPEG4Writer::writeHdlr() {
|
|
beginBox("hdlr");
|
|
writeInt32(0); // Version, Flags
|
|
writeInt32(0); // Predefined
|
|
writeFourcc("mdta");
|
|
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::writeMetaBox() {
|
|
size_t count = mMetaKeys->countEntries();
|
|
if (count == 0) {
|
|
return;
|
|
}
|
|
|
|
beginBox("meta");
|
|
writeHdlr();
|
|
writeKeys();
|
|
writeIlst();
|
|
endBox();
|
|
}
|
|
|
|
/*
|
|
* 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
|