MPEG4Writer.h revision bc07bcc65e91c7aea9713631ae67760dcf1b0286
120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber/* 220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Copyright (C) 2009 The Android Open Source Project 320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * you may not use this file except in compliance with the License. 620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * You may obtain a copy of the License at 720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * 1020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * Unless required by applicable law or agreed to in writing, software 1120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 1220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * See the License for the specific language governing permissions and 1420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber * limitations under the License. 1520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber */ 1620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#ifndef MPEG4_WRITER_H_ 1820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 1920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#define MPEG4_WRITER_H_ 2020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <stdio.h> 2220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 232dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber#include <media/stagefright/MediaWriter.h> 2420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <utils/List.h> 2520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#include <utils/threads.h> 2620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2720111aa043c5f404472bc63b90bc5aad906b1101Andreas Hubernamespace android { 2820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 2920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MediaBuffer; 3020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MediaSource; 3120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberclass MetaData; 3220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 332dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huberclass MPEG4Writer : public MediaWriter { 3420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberpublic: 3520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer(const char *filename); 3630ab66297501757d745b9ae10da61adcd891f497Andreas Huber MPEG4Writer(int fd); 3720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 382dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual status_t addSource(const sp<MediaSource> &source); 392dec2b5be2056c6d9428897dc672185872d30d17James Dong virtual status_t start(MetaData *param = NULL); 4037187916a486504acaf83bea30147eb5fbf46ae5James Dong virtual status_t stop(); 4137187916a486504acaf83bea30147eb5fbf46ae5James Dong virtual status_t pause(); 422dce41ad26cb3e9e15c9e456a84bcf5309548ca0Andreas Huber virtual bool reachedEOS(); 43dedf414d3fe2e79ee0aad0f1c82ca16ebd886ff6James Dong virtual status_t dump(int fd, const Vector<String16>& args); 4420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 4520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void beginBox(const char *fourcc); 4620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt8(int8_t x); 4720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt16(int16_t x); 4820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt32(int32_t x); 4920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeInt64(int64_t x); 5020111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeCString(const char *s); 5120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void writeFourcc(const char *fourcc); 5220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void write(const void *data, size_t size); 5320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber void endBox(); 5413aec890216948b0c364f8f92792129d0335f506James Dong uint32_t interleaveDuration() const { return mInterleaveDurationUs; } 5513aec890216948b0c364f8f92792129d0335f506James Dong status_t setInterleaveDuration(uint32_t duration); 568f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t getTimeScale() const { return mTimeScale; } 5720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 58693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huberprotected: 59693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber virtual ~MPEG4Writer(); 60693d271e62a3726689ff68f4505ba49228eb94b2Andreas Huber 6120111aa043c5f404472bc63b90bc5aad906b1101Andreas Huberprivate: 6220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber class Track; 6320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 64c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong int mFd; 65674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong status_t mInitCheck; 66b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool mUse4ByteNalLength; 671acfe8649f8169caf2ff098c2dc2de880d9a3760James Dong bool mUse32BitOffset; 68a007e8229fb2be4866c483f9cd6c4af238a2da5eJames Dong bool mIsFileSizeLimitExplicitlyRequested; 69a7d1a2dd776bf356c228785a94ba8e0ff6a2ec7fJames Dong bool mPaused; 70a7d1a2dd776bf356c228785a94ba8e0ff6a2ec7fJames Dong bool mStarted; 71c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mOffset; 7220111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber off_t mMdatOffset; 737837c17063a4c50bc856ba59418516fdab731de7James Dong uint8_t *mMoovBoxBuffer; 74c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mMoovBoxBufferOffset; 757837c17063a4c50bc856ba59418516fdab731de7James Dong bool mWriteMoovBoxToMemory; 76c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mFreeBoxOffset; 777837c17063a4c50bc856ba59418516fdab731de7James Dong bool mStreamableFile; 78c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mEstimatedMoovBoxSize; 7913aec890216948b0c364f8f92792129d0335f506James Dong uint32_t mInterleaveDurationUs; 808f5f2fcee5c12d08df71d17017410c50951fc2e3James Dong int32_t mTimeScale; 813c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong int64_t mStartTimestampUs; 821c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 8320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber Mutex mLock; 8420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 8520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber List<Track *> mTracks; 8620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 87c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong List<off64_t> mBoxes; 8820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 89f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong void setStartTimestampUs(int64_t timeUs); 90f60cafe0e6aad8f9ce54660fa88b651ae4e749e6James Dong int64_t getStartTimestampUs(); // Not const 9193d6b102a13afa23bfa80d74c399d93d542e6ad6James Dong status_t startTracks(MetaData *params); 9258ae9c530247668f8af36e30d228c716c226b3d4James Dong size_t numTracks(); 932dec2b5be2056c6d9428897dc672185872d30d17James Dong int64_t estimateMoovBoxSize(int32_t bitRate); 943c0131f02b6f008321608044c53bccce2ac5f6ddJames Dong 951c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct Chunk { 961c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 971c9747a4653aec1395c2bd6896c9b87cb5447837James Dong int64_t mTimeStampUs; // Timestamp of the 1st sample 981c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<MediaBuffer *> mSamples; // Sample data 991c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1001c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Convenient constructor 101fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong Chunk(): mTrack(NULL), mTimeStampUs(0) {} 102fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong 1031c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples) 1041c9747a4653aec1395c2bd6896c9b87cb5447837James Dong : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) { 1051c9747a4653aec1395c2bd6896c9b87cb5447837James Dong } 1061c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1071c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1081c9747a4653aec1395c2bd6896c9b87cb5447837James Dong struct ChunkInfo { 1091c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Track *mTrack; // Owner 1101c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<Chunk> mChunks; // Remaining chunks to be written 1111c9747a4653aec1395c2bd6896c9b87cb5447837James Dong }; 1121c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1131c9747a4653aec1395c2bd6896c9b87cb5447837James Dong bool mIsFirstChunk; 1141c9747a4653aec1395c2bd6896c9b87cb5447837James Dong volatile bool mDone; // Writer thread is done? 1151c9747a4653aec1395c2bd6896c9b87cb5447837James Dong pthread_t mThread; // Thread id for the writer 1161c9747a4653aec1395c2bd6896c9b87cb5447837James Dong List<ChunkInfo> mChunkInfos; // Chunk infos 1171c9747a4653aec1395c2bd6896c9b87cb5447837James Dong Condition mChunkReadyCondition; // Signal that chunks are available 1181c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1191c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Writer thread handling 1201c9747a4653aec1395c2bd6896c9b87cb5447837James Dong status_t startWriterThread(); 1211c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void stopWriterThread(); 1221c9747a4653aec1395c2bd6896c9b87cb5447837James Dong static void *ThreadWrapper(void *me); 1231c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void threadFunc(); 1241c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1251c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Buffer a single chunk to be written out later. 1261c9747a4653aec1395c2bd6896c9b87cb5447837James Dong void bufferChunk(const Chunk& chunk); 1271c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 1281c9747a4653aec1395c2bd6896c9b87cb5447837James Dong // Write all buffered chunks from all tracks 129fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeAllChunks(); 1301c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 131fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Retrieve the proper chunk to write if there is one 132fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Return true if a chunk is found; otherwise, return false. 133fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong bool findChunkToWrite(Chunk *chunk); 1341c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 135fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong // Actually write the given chunk to the file. 136fcac8fa9421f442f024018628a6042d7a14fbfb0James Dong void writeChunkToFile(Chunk* chunk); 1371c9747a4653aec1395c2bd6896c9b87cb5447837James Dong 138e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // Adjust other track media clock (presumably wall clock) 139e259531ce59ab1f31de5a23124b22536f6a5a767James Dong // based on audio track media clock with the drift time. 140e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t mDriftTimeUs; 141d707fcb3e29707ca4a5935c294ef0b38eb5aba5fJames Dong void setDriftTimeUs(int64_t driftTimeUs); 142e259531ce59ab1f31de5a23124b22536f6a5a767James Dong int64_t getDriftTimeUs(); 143e259531ce59ab1f31de5a23124b22536f6a5a767James Dong 144b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Return whether the nal length is 4 bytes or 2 bytes 145b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong // Only makes sense for H.264/AVC 146b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong bool useNalLengthFour(); 147b4d5320bda29cd9694461c9b61d0211f801ff0afJames Dong 14813aec890216948b0c364f8f92792129d0335f506James Dong void lock(); 14913aec890216948b0c364f8f92792129d0335f506James Dong void unlock(); 15013aec890216948b0c364f8f92792129d0335f506James Dong 15113aec890216948b0c364f8f92792129d0335f506James Dong // Acquire lock before calling these methods 152c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addSample_l(MediaBuffer *buffer); 153c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t addLengthPrefixedSample_l(MediaBuffer *buffer); 15420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 155674ebd0b4e1143e38392a4e3bb38b4679a4577bcJames Dong inline size_t write(const void *ptr, size_t size, size_t nmemb); 156d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileSizeLimit(); 1571f90c4b3fda9dbd2824d67fd679f850572f114dcJames Dong bool use32BitFileOffset() const; 158d599cd4573b5a2d5914c5040e0565ef866749b77James Dong bool exceedsFileDurationLimit(); 15978a1a286f736888ae7af8860b2c424af0d978848James Dong bool isFileStreamable() const; 160bc07bcc65e91c7aea9713631ae67760dcf1b0286James Dong void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK); 16113f6284305e4b27395a23db7882d670bdb1bcae1James Dong void writeCompositionMatrix(int32_t degrees); 1627837c17063a4c50bc856ba59418516fdab731de7James Dong 16320111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer(const MPEG4Writer &); 16420111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber MPEG4Writer &operator=(const MPEG4Writer &); 16520111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber}; 16620111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 16720111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber} // namespace android 16820111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber 16920111aa043c5f404472bc63b90bc5aad906b1101Andreas Huber#endif // MPEG4_WRITER_H_ 170