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143 lines
3.7 KiB
143 lines
3.7 KiB
/*
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* Copyright (C) 2010 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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#ifndef ES_QUEUE_H_
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#define ES_QUEUE_H_
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#include <media/stagefright/foundation/ABase.h>
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#include <media/stagefright/foundation/AMessage.h>
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#include <utils/Errors.h>
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#include <utils/List.h>
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#include <utils/RefBase.h>
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#include <vector>
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#include "SampleDecryptor.h"
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namespace android {
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struct ABuffer;
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class MetaData;
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struct ElementaryStreamQueue {
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enum Mode {
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INVALID = 0,
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H264,
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AAC,
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AC3,
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EAC3,
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AC4,
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MPEG_AUDIO,
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MPEG_VIDEO,
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MPEG4_VIDEO,
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PCM_AUDIO,
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METADATA,
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};
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enum Flags {
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// Data appended to the queue is always at access unit boundaries.
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kFlag_AlignedData = 1,
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kFlag_ScrambledData = 2,
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kFlag_SampleEncryptedData = 4,
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};
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explicit ElementaryStreamQueue(Mode mode, uint32_t flags = 0);
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status_t appendData(const void *data, size_t size,
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int64_t timeUs, int32_t payloadOffset = 0,
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uint32_t pesScramblingControl = 0);
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void appendScrambledData(
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const void *data, size_t size,
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size_t leadingClearBytes,
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int32_t keyId, bool isSync,
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sp<ABuffer> clearSizes, sp<ABuffer> encSizes);
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void signalEOS();
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void clear(bool clearFormat);
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sp<ABuffer> dequeueAccessUnit();
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sp<MetaData> getFormat();
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bool isScrambled() const;
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void setCasInfo(int32_t systemId, const std::vector<uint8_t> &sessionId);
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void signalNewSampleAesKey(const sp<AMessage> &keyItem);
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private:
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struct RangeInfo {
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int64_t mTimestampUs;
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size_t mLength;
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int32_t mPesOffset;
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uint32_t mPesScramblingControl;
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};
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struct ScrambledRangeInfo {
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size_t mLength;
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size_t mLeadingClearBytes;
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int32_t mKeyId;
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int32_t mIsSync;
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sp<ABuffer> mClearSizes;
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sp<ABuffer> mEncSizes;
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};
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Mode mMode;
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uint32_t mFlags;
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bool mEOSReached;
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sp<ABuffer> mBuffer;
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List<RangeInfo> mRangeInfos;
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sp<ABuffer> mScrambledBuffer;
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List<ScrambledRangeInfo> mScrambledRangeInfos;
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int32_t mCASystemId;
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std::vector<uint8_t> mCasSessionId;
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sp<MetaData> mFormat;
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sp<SampleDecryptor> mSampleDecryptor;
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int mAUIndex;
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bool isSampleEncrypted() const {
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return (mFlags & kFlag_SampleEncryptedData) != 0;
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}
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sp<ABuffer> dequeueAccessUnitH264();
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sp<ABuffer> dequeueAccessUnitAAC();
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sp<ABuffer> dequeueAccessUnitEAC3();
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sp<ABuffer> dequeueAccessUnitAC4();
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sp<ABuffer> dequeueAccessUnitMPEGAudio();
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sp<ABuffer> dequeueAccessUnitMPEGVideo();
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sp<ABuffer> dequeueAccessUnitMPEG4Video();
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sp<ABuffer> dequeueAccessUnitPCMAudio();
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sp<ABuffer> dequeueAccessUnitMetadata();
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// consume a logical (compressed) access unit of size "size",
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// returns its timestamp in us (or -1 if no time information).
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int64_t fetchTimestamp(size_t size,
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int32_t *pesOffset = NULL,
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int32_t *pesScramblingControl = NULL);
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sp<ABuffer> dequeueScrambledAccessUnit();
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DISALLOW_EVIL_CONSTRUCTORS(ElementaryStreamQueue);
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};
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} // namespace android
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#endif // ES_QUEUE_H_
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