MatroskaExtractor.cpp revision 0644f95a8976470e84c6c0a6d96585ae6437ecd2
1093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber/* 2093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * Copyright (C) 2010 The Android Open Source Project 3093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * 4093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * you may not use this file except in compliance with the License. 6093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * You may obtain a copy of the License at 7093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * 8093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * 10093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * Unless required by applicable law or agreed to in writing, software 11093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * See the License for the specific language governing permissions and 14093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber * limitations under the License. 15093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber */ 16093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 17093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber//#define LOG_NDEBUG 0 18093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#define LOG_TAG "MatroskaExtractor" 19093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <utils/Log.h> 20093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 21093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include "MatroskaExtractor.h" 22093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 23b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber#include <media/stagefright/foundation/ADebug.h> 24b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber#include <media/stagefright/foundation/hexdump.h> 25093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/DataSource.h> 26093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/MediaBuffer.h> 27093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/MediaDefs.h> 28093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/MediaErrors.h> 29093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/MediaSource.h> 30093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <media/stagefright/MetaData.h> 31b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber#include <media/stagefright/Utils.h> 32093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber#include <utils/String8.h> 33093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 34b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross#include <inttypes.h> 35b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross 36093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubernamespace android { 37093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 38093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberstruct DataSourceReader : public mkvparser::IMkvReader { 39093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber DataSourceReader(const sp<DataSource> &source) 40093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber : mSource(source) { 41093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 42093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 43093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual int Read(long long position, long length, unsigned char* buffer) { 44093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber CHECK(position >= 0); 45093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber CHECK(length >= 0); 46093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 47093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (length == 0) { 48093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return 0; 49093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 50093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 51093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber ssize_t n = mSource->readAt(position, buffer, length); 52093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 53093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (n <= 0) { 54093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return -1; 55093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 56093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 57093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return 0; 58093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 59093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 60093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual int Length(long long* total, long long* available) { 61c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t size; 62093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (mSource->getSize(&size) != OK) { 63d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber *total = -1; 64d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber *available = (long long)((1ull << 63) - 1); 65d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 66d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber return 0; 67093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 68093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 69093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (total) { 70093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber *total = size; 71093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 72093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 73093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (available) { 74093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber *available = size; 75093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 76093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 77093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return 0; 78093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 79093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 80093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberprivate: 81093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber sp<DataSource> mSource; 82093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 83093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber DataSourceReader(const DataSourceReader &); 84093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber DataSourceReader &operator=(const DataSourceReader &); 85093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber}; 86093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 87093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber//////////////////////////////////////////////////////////////////////////////// 88093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 895279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huberstruct BlockIterator { 902f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih BlockIterator(MatroskaExtractor *extractor, unsigned long trackNum, unsigned long index); 915279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 925279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber bool eos() const; 935279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 945279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber void advance(); 955279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber void reset(); 965ec58d925520e6913fba3fc54413881af751c610Andreas Huber 975ec58d925520e6913fba3fc54413881af751c610Andreas Huber void seek( 98f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann int64_t seekTimeUs, bool isAudio, 995ec58d925520e6913fba3fc54413881af751c610Andreas Huber int64_t *actualFrameTimeUs); 1005279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 1015279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber const mkvparser::Block *block() const; 1025279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber int64_t blockTimeUs() const; 1035279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 1045279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huberprivate: 105d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber MatroskaExtractor *mExtractor; 106b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross long long mTrackNum; 1072f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih unsigned long mIndex; 1085279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 109d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber const mkvparser::Cluster *mCluster; 1105279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber const mkvparser::BlockEntry *mBlockEntry; 111d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber long mBlockEntryIndex; 112d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 113d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber void advance_l(); 1145279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 1155279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber BlockIterator(const BlockIterator &); 1165279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber BlockIterator &operator=(const BlockIterator &); 1175279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber}; 1185279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 119093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberstruct MatroskaSource : public MediaSource { 120093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber MatroskaSource( 121093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const sp<MatroskaExtractor> &extractor, size_t index); 122093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 123093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual status_t start(MetaData *params); 124093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual status_t stop(); 125093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 126093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual sp<MetaData> getFormat(); 127093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 128093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber virtual status_t read( 129093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber MediaBuffer **buffer, const ReadOptions *options); 130093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 13150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huberprotected: 13250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber virtual ~MatroskaSource(); 13350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 134093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberprivate: 135093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber enum Type { 136093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber AVC, 137093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber AAC, 138093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber OTHER 139093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber }; 140093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 141093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber sp<MatroskaExtractor> mExtractor; 142093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber size_t mTrackIndex; 143093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber Type mType; 14474a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber bool mIsAudio; 1455279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber BlockIterator mBlockIter; 146b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber size_t mNALSizeLen; // for type AVC 147093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 14850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber List<MediaBuffer *> mPendingFrames; 14950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 150093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber status_t advance(); 151093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 15250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber status_t readBlock(); 15350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber void clearPendingFrames(); 15450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 155093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber MatroskaSource(const MatroskaSource &); 156093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber MatroskaSource &operator=(const MatroskaSource &); 157093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber}; 158093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1592f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shihconst mkvparser::Track* MatroskaExtractor::TrackInfo::getTrack() const { 1602f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return mExtractor->mSegment->GetTracks()->GetTrackByNumber(mTrackNum); 1612f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih} 1622f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 1632f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih// This function does exactly the same as mkvparser::Cues::Find, except that it 1642f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih// searches in our own track based vectors. We should not need this once mkvparser 1652f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih// adds the same functionality. 1662f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shihconst mkvparser::CuePoint::TrackPosition *MatroskaExtractor::TrackInfo::find( 1672f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih long long timeNs) const { 1682f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih ALOGV("mCuePoints.size %zu", mCuePoints.size()); 1692f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (mCuePoints.empty()) { 1702f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return NULL; 1712f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 1722f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 1732f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const mkvparser::CuePoint* cp = mCuePoints.itemAt(0); 1742f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const mkvparser::Track* track = getTrack(); 1752f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (timeNs <= cp->GetTime(mExtractor->mSegment)) { 1762f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return cp->Find(track); 1772f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 1782f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 1792f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih // Binary searches through relevant cues; assumes cues are ordered by timecode. 1802f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih // If we do detect out-of-order cues, return NULL. 1812f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih size_t lo = 0; 1822f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih size_t hi = mCuePoints.size(); 1832f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih while (lo < hi) { 1842f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const size_t mid = lo + (hi - lo) / 2; 1852f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const mkvparser::CuePoint* const midCp = mCuePoints.itemAt(mid); 1862f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const long long cueTimeNs = midCp->GetTime(mExtractor->mSegment); 1872f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (cueTimeNs <= timeNs) { 1882f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih lo = mid + 1; 1892f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } else { 1902f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih hi = mid; 1912f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 1922f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 1932f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 1942f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (lo == 0) { 1952f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return NULL; 1962f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 1972f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 1982f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih cp = mCuePoints.itemAt(lo - 1); 1992f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (cp->GetTime(mExtractor->mSegment) > timeNs) { 2002f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return NULL; 2012f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 2022f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 2032f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih return cp->Find(track); 2042f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih} 2052f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 206093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas HuberMatroskaSource::MatroskaSource( 207093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const sp<MatroskaExtractor> &extractor, size_t index) 208093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber : mExtractor(extractor), 209093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mTrackIndex(index), 210093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mType(OTHER), 21174a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber mIsAudio(false), 212d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockIter(mExtractor.get(), 2132f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih mExtractor->mTracks.itemAt(index).mTrackNum, 2142f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih index), 215b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber mNALSizeLen(0) { 216b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber sp<MetaData> meta = mExtractor->mTracks.itemAt(index).mMeta; 217b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 218093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const char *mime; 219b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber CHECK(meta->findCString(kKeyMIMEType, &mime)); 220093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 22174a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber mIsAudio = !strncasecmp("audio/", mime, 6); 22274a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber 223093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) { 224093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mType = AVC; 225b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 226b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber uint32_t dummy; 227b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber const uint8_t *avcc; 228b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber size_t avccSize; 229b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber CHECK(meta->findData( 230b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber kKeyAVCC, &dummy, (const void **)&avcc, &avccSize)); 231b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 232b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber CHECK_GE(avccSize, 5u); 233b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 234b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber mNALSizeLen = 1 + (avcc[4] & 3); 235b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross ALOGV("mNALSizeLen = %zu", mNALSizeLen); 236093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) { 237093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mType = AAC; 238093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 239093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 240093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 24150c8bea8fba2fcafb14696399028bdbc094dc995Andreas HuberMatroskaSource::~MatroskaSource() { 24250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber clearPendingFrames(); 24350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber} 24450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 24584333e0475bc911adc16417f4ca327c975cf6c36Andreas Huberstatus_t MatroskaSource::start(MetaData * /* params */) { 2465279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber mBlockIter.reset(); 247093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 248093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return OK; 249093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 250093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 251093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberstatus_t MatroskaSource::stop() { 25250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber clearPendingFrames(); 25350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 254093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return OK; 255093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 256093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 257093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubersp<MetaData> MatroskaSource::getFormat() { 258093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return mExtractor->mTracks.itemAt(mTrackIndex).mMeta; 259093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 260093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 2615279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber//////////////////////////////////////////////////////////////////////////////// 2625279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 2635279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas HuberBlockIterator::BlockIterator( 2642f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih MatroskaExtractor *extractor, unsigned long trackNum, unsigned long index) 265d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber : mExtractor(extractor), 2665279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber mTrackNum(trackNum), 2672f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih mIndex(index), 2685279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber mCluster(NULL), 269d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockEntry(NULL), 270d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockEntryIndex(0) { 2715279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber reset(); 2725279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 2735279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 2745279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huberbool BlockIterator::eos() const { 2755279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber return mCluster == NULL || mCluster->EOS(); 2765279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 2775279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 2785279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Hubervoid BlockIterator::advance() { 279d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber Mutex::Autolock autoLock(mExtractor->mLock); 280d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber advance_l(); 281d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber} 282d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 283d42573cace9db2b5948e540c32beaef80f04153cAndreas Hubervoid BlockIterator::advance_l() { 284d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber for (;;) { 285d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber long res = mCluster->GetEntry(mBlockEntryIndex, mBlockEntry); 2863856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("GetEntry returned %ld", res); 287d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 288d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber long long pos; 289d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber long len; 290d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (res < 0) { 291d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber // Need to parse this cluster some more 292d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 293d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK_EQ(res, mkvparser::E_BUFFER_NOT_FULL); 294d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 295d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber res = mCluster->Parse(pos, len); 2963856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Parse returned %ld", res); 297d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 298d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (res < 0) { 299d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber // I/O error 300d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 30129357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Cluster::Parse returned result %ld", res); 3025279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 303d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mCluster = NULL; 3045279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber break; 305093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 3065279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 307d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber continue; 308d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber } else if (res == 0) { 309d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber // We're done with this cluster 310d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 311d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber const mkvparser::Cluster *nextCluster; 312d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber res = mExtractor->mSegment->ParseNext( 313d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mCluster, nextCluster, pos, len); 3143856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("ParseNext returned %ld", res); 315d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 316e467ef084b75b074d0081616080b54212a7024c8Lajos Molnar if (res != 0) { 317e467ef084b75b074d0081616080b54212a7024c8Lajos Molnar // EOF or error 318d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 319d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mCluster = NULL; 320d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber break; 321d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber } 322d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 323d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK_EQ(res, 0); 324d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK(nextCluster != NULL); 325d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK(!nextCluster->EOS()); 326d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 327d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mCluster = nextCluster; 328d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 329d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber res = mCluster->Parse(pos, len); 3303856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("Parse (2) returned %ld", res); 331d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK_GE(res, 0); 332d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 333d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockEntryIndex = 0; 334d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber continue; 335093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 336093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 337d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK(mBlockEntry != NULL); 338d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber CHECK(mBlockEntry->GetBlock() != NULL); 339d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber ++mBlockEntryIndex; 340d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 341d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (mBlockEntry->GetBlock()->GetTrackNumber() == mTrackNum) { 3425279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber break; 343093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 3445279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 3455279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 3465279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 3475279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Hubervoid BlockIterator::reset() { 348d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber Mutex::Autolock autoLock(mExtractor->mLock); 349093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 350d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mCluster = mExtractor->mSegment->GetFirst(); 3512ba7ce928b0fa8917ee202836b0963ca58613453Andreas Huber mBlockEntry = NULL; 352d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockEntryIndex = 0; 353d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 354d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber do { 355d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber advance_l(); 356d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber } while (!eos() && block()->GetTrackNumber() != mTrackNum); 3575279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 358093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 3595ec58d925520e6913fba3fc54413881af751c610Andreas Hubervoid BlockIterator::seek( 360f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann int64_t seekTimeUs, bool isAudio, 3615ec58d925520e6913fba3fc54413881af751c610Andreas Huber int64_t *actualFrameTimeUs) { 362d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber Mutex::Autolock autoLock(mExtractor->mLock); 363d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 3645ec58d925520e6913fba3fc54413881af751c610Andreas Huber *actualFrameTimeUs = -1ll; 3655ec58d925520e6913fba3fc54413881af751c610Andreas Huber 366bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian const int64_t seekTimeNs = seekTimeUs * 1000ll - mExtractor->mSeekPreRollNs; 36710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 36810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann mkvparser::Segment* const pSegment = mExtractor->mSegment; 36910f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 37010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann // Special case the 0 seek to avoid loading Cues when the application 37110f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann // extraneously seeks to 0 before playing. 37210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann if (seekTimeNs <= 0) { 373b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross ALOGV("Seek to beginning: %" PRId64, seekTimeUs); 37410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann mCluster = pSegment->GetFirst(); 37510f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann mBlockEntryIndex = 0; 37610f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann do { 37710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann advance_l(); 37810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } while (!eos() && block()->GetTrackNumber() != mTrackNum); 37910f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann return; 38010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 3815ec58d925520e6913fba3fc54413881af751c610Andreas Huber 382b4a7a2df4c28c3f32b5d877b54831d2cc5d78f81Colin Cross ALOGV("Seeking to: %" PRId64, seekTimeUs); 38310f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 38410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann // If the Cues have not been located then find them. 38510f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann const mkvparser::Cues* pCues = pSegment->GetCues(); 38610f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann const mkvparser::SeekHead* pSH = pSegment->GetSeekHead(); 38710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann if (!pCues && pSH) { 38810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann const size_t count = pSH->GetCount(); 38910f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann const mkvparser::SeekHead::Entry* pEntry; 39010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann ALOGV("No Cues yet"); 39110f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 39210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann for (size_t index = 0; index < count; index++) { 39310f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann pEntry = pSH->GetEntry(index); 39410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 39510f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann if (pEntry->id == 0x0C53BB6B) { // Cues ID 39610f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann long len; long long pos; 39710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann pSegment->ParseCues(pEntry->pos, pos, len); 39810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann pCues = pSegment->GetCues(); 399be7ac3d682729048af27871311808a76c618abdbJohann ALOGV("Cues found"); 40010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann break; 40110f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 40210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 40310f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 40410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann if (!pCues) { 40510f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann ALOGE("No Cues in file"); 40610f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann return; 40710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 40810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 40910f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann else if (!pSH) { 41010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann ALOGE("No SeekHead"); 41110f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann return; 41210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 41310f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 41410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann const mkvparser::CuePoint* pCP; 4152f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih mkvparser::Tracks const *pTracks = pSegment->GetTracks(); 41610f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann while (!pCues->DoneParsing()) { 417be7ac3d682729048af27871311808a76c618abdbJohann pCues->LoadCuePoint(); 41810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann pCP = pCues->GetLast(); 4192f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih CHECK(pCP); 4202f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 4210644f95a8976470e84c6c0a6d96585ae6437ecd2Robert Shih size_t trackCount = mExtractor->mTracks.size(); 4222f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih for (size_t index = 0; index < trackCount; ++index) { 4230644f95a8976470e84c6c0a6d96585ae6437ecd2Robert Shih MatroskaExtractor::TrackInfo& track = mExtractor->mTracks.editItemAt(index); 4240644f95a8976470e84c6c0a6d96585ae6437ecd2Robert Shih const mkvparser::Track *pTrack = pTracks->GetTrackByNumber(track.mTrackNum); 4252f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (pTrack && pTrack->GetType() == 1 && pCP->Find(pTrack)) { // VIDEO_TRACK 4262f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih track.mCuePoints.push_back(pCP); 4272f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 4282f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 429be7ac3d682729048af27871311808a76c618abdbJohann 43010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann if (pCP->GetTime(pSegment) >= seekTimeNs) { 431be7ac3d682729048af27871311808a76c618abdbJohann ALOGV("Parsed past relevant Cue"); 43210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann break; 43310f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 43410f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 43510f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 4362f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const mkvparser::CuePoint::TrackPosition *pTP = NULL; 4370644f95a8976470e84c6c0a6d96585ae6437ecd2Robert Shih const mkvparser::Track *thisTrack = pTracks->GetTrackByNumber(mTrackNum); 4382f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (thisTrack->GetType() == 1) { // video 4392f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih MatroskaExtractor::TrackInfo& track = mExtractor->mTracks.editItemAt(mIndex); 4402f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih pTP = track.find(seekTimeNs); 4412f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } else { 4422f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih // The Cue index is built around video keyframes 4430644f95a8976470e84c6c0a6d96585ae6437ecd2Robert Shih unsigned long int trackCount = pTracks->GetTracksCount(); 4442f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih for (size_t index = 0; index < trackCount; ++index) { 4452f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih const mkvparser::Track *pTrack = pTracks->GetTrackByIndex(index); 4462f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (pTrack && pTrack->GetType() == 1 && pCues->Find(seekTimeNs, pTrack, pCP, pTP)) { 4472f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih ALOGV("Video track located at %zu", index); 4482f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih break; 4492f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 45010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 45110f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 45210f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 4532f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih 454f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // Always *search* based on the video track, but finalize based on mTrackNum 4552f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (!pTP) { 456f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann ALOGE("Did not locate the video track for seeking"); 45710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann return; 45810f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann } 45910f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann 46010f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann mCluster = pSegment->FindOrPreloadCluster(pTP->m_pos); 4615279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 462f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann CHECK(mCluster); 463f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann CHECK(!mCluster->EOS()); 464f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann 465f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // mBlockEntryIndex starts at 0 but m_block starts at 1 466f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann CHECK_GT(pTP->m_block, 0); 467f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann mBlockEntryIndex = pTP->m_block - 1; 4685ec58d925520e6913fba3fc54413881af751c610Andreas Huber 4695ec58d925520e6913fba3fc54413881af751c610Andreas Huber for (;;) { 470d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber advance_l(); 4715279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 472f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann if (eos()) break; 4735ec58d925520e6913fba3fc54413881af751c610Andreas Huber 474f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann if (isAudio || block()->IsKey()) { 475f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // Accept the first key frame 4762f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih int64_t frameTimeUs = (block()->GetTime(mCluster) + 500LL) / 1000LL; 4772f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih if (thisTrack->GetType() == 1 || frameTimeUs >= seekTimeUs) { 4782f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih *actualFrameTimeUs = frameTimeUs; 4792f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih ALOGV("Requested seek point: %" PRId64 " actual: %" PRId64, 4802f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih seekTimeUs, *actualFrameTimeUs); 4812f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih break; 4822f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih } 48374a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber } 4845279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 485093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 486093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 4875279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huberconst mkvparser::Block *BlockIterator::block() const { 4885279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber CHECK(!eos()); 4895279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 4905279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber return mBlockEntry->GetBlock(); 4915279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 4925279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 4935279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huberint64_t BlockIterator::blockTimeUs() const { 4945279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber return (mBlockEntry->GetBlock()->GetTime(mCluster) + 500ll) / 1000ll; 4955279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 4965279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 4975279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber//////////////////////////////////////////////////////////////////////////////// 4985279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 499b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huberstatic unsigned U24_AT(const uint8_t *ptr) { 500b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber return ptr[0] << 16 | ptr[1] << 8 | ptr[2]; 501b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber} 502b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 50350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huberstatic size_t clz(uint8_t x) { 50450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber size_t numLeadingZeroes = 0; 505093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 50650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber while (!(x & 0x80)) { 50750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber ++numLeadingZeroes; 50850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber x = x << 1; 509093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 510093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 51150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber return numLeadingZeroes; 51250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber} 51350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 51450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Hubervoid MatroskaSource::clearPendingFrames() { 51550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber while (!mPendingFrames.empty()) { 51650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber MediaBuffer *frame = *mPendingFrames.begin(); 51750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber mPendingFrames.erase(mPendingFrames.begin()); 51850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 51950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber frame->release(); 52050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber frame = NULL; 52150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 52250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber} 52350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 52450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huberstatus_t MatroskaSource::readBlock() { 52550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber CHECK(mPendingFrames.empty()); 52650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 5275279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber if (mBlockIter.eos()) { 528093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return ERROR_END_OF_STREAM; 529093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 530093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 5315279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber const mkvparser::Block *block = mBlockIter.block(); 53250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 5335279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber int64_t timeUs = mBlockIter.blockTimeUs(); 534093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 535d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber for (int i = 0; i < block->GetFrameCount(); ++i) { 536d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber const mkvparser::Block::Frame &frame = block->GetFrame(i); 537b10f3669a9b73cd024662c2b70f5155bc0c2cd21Andreas Huber 538d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber MediaBuffer *mbuf = new MediaBuffer(frame.len); 539d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mbuf->meta_data()->setInt64(kKeyTime, timeUs); 540d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mbuf->meta_data()->setInt32(kKeyIsSyncFrame, block->IsKey()); 541093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 542d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber long n = frame.Read(mExtractor->mReader, (unsigned char *)mbuf->data()); 543d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (n != 0) { 544d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mPendingFrames.clear(); 54550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 546d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockIter.advance(); 547d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber return ERROR_IO; 54850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 54950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 55050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber mPendingFrames.push_back(mbuf); 55150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 55250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 553d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mBlockIter.advance(); 55450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 55550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber return OK; 55650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber} 55750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 55850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huberstatus_t MatroskaSource::read( 55950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber MediaBuffer **out, const ReadOptions *options) { 56050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber *out = NULL; 56150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 5625ec58d925520e6913fba3fc54413881af751c610Andreas Huber int64_t targetSampleTimeUs = -1ll; 5635ec58d925520e6913fba3fc54413881af751c610Andreas Huber 56450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber int64_t seekTimeUs; 56550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber ReadOptions::SeekMode mode; 566d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (options && options->getSeekTo(&seekTimeUs, &mode) 567d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber && !mExtractor->isLiveStreaming()) { 56850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber clearPendingFrames(); 56974a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber 570f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // The audio we want is located by using the Cues to seek the video 571f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // stream to find the target Cluster then iterating to finalize for 572f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann // audio. 5735ec58d925520e6913fba3fc54413881af751c610Andreas Huber int64_t actualFrameTimeUs; 574f02a7f5c42db707d20e59ff28f32d1eaebcc5429Johann mBlockIter.seek(seekTimeUs, mIsAudio, &actualFrameTimeUs); 5755ec58d925520e6913fba3fc54413881af751c610Andreas Huber 5765ec58d925520e6913fba3fc54413881af751c610Andreas Huber if (mode == ReadOptions::SEEK_CLOSEST) { 5775ec58d925520e6913fba3fc54413881af751c610Andreas Huber targetSampleTimeUs = actualFrameTimeUs; 5785ec58d925520e6913fba3fc54413881af751c610Andreas Huber } 57950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 58050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 58150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber while (mPendingFrames.empty()) { 58250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber status_t err = readBlock(); 58350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 58450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber if (err != OK) { 58550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber clearPendingFrames(); 58650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 58750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber return err; 58850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 58950c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 59050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 59150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber MediaBuffer *frame = *mPendingFrames.begin(); 59250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber mPendingFrames.erase(mPendingFrames.begin()); 59350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 59450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber if (mType != AVC) { 5955ec58d925520e6913fba3fc54413881af751c610Andreas Huber if (targetSampleTimeUs >= 0ll) { 5965ec58d925520e6913fba3fc54413881af751c610Andreas Huber frame->meta_data()->setInt64( 5975ec58d925520e6913fba3fc54413881af751c610Andreas Huber kKeyTargetTime, targetSampleTimeUs); 5985ec58d925520e6913fba3fc54413881af751c610Andreas Huber } 5995ec58d925520e6913fba3fc54413881af751c610Andreas Huber 60050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber *out = frame; 60150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 60250c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber return OK; 60350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 60450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 605792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // Each input frame contains one or more NAL fragments, each fragment 606792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // is prefixed by mNALSizeLen bytes giving the fragment length, 607792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // followed by a corresponding number of bytes containing the fragment. 608792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // We output all these fragments into a single large buffer separated 609792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // by startcodes (0x00 0x00 0x00 0x01). 610792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber 611792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber const uint8_t *srcPtr = 612792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber (const uint8_t *)frame->data() + frame->range_offset(); 613792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber 614792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber size_t srcSize = frame->range_length(); 615792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber 616792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber size_t dstSize = 0; 617792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber MediaBuffer *buffer = NULL; 618792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber uint8_t *dstPtr = NULL; 619792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber 620792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber for (int32_t pass = 0; pass < 2; ++pass) { 621792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber size_t srcOffset = 0; 622792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber size_t dstOffset = 0; 623792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber while (srcOffset + mNALSizeLen <= srcSize) { 624792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber size_t NALsize; 625792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber switch (mNALSizeLen) { 626792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber case 1: NALsize = srcPtr[srcOffset]; break; 627792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber case 2: NALsize = U16_AT(srcPtr + srcOffset); break; 628792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber case 3: NALsize = U24_AT(srcPtr + srcOffset); break; 629792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber case 4: NALsize = U32_AT(srcPtr + srcOffset); break; 630792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber default: 631792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber TRESPASS(); 632792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 63350c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 634792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber if (srcOffset + mNALSizeLen + NALsize > srcSize) { 635792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber break; 636792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 63750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 638792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber if (pass == 1) { 639792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber memcpy(&dstPtr[dstOffset], "\x00\x00\x00\x01", 4); 64050c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 641792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber memcpy(&dstPtr[dstOffset + 4], 642792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber &srcPtr[srcOffset + mNALSizeLen], 643792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber NALsize); 644792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 64550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 646792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber dstOffset += 4; // 0x00 00 00 01 647792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber dstOffset += NALsize; 64850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 649792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber srcOffset += mNALSizeLen + NALsize; 650792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 65150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 652792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber if (srcOffset < srcSize) { 653792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // There were trailing bytes or not enough data to complete 654792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber // a fragment. 65550c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 656792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber frame->release(); 657792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber frame = NULL; 65850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 659792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber return ERROR_MALFORMED; 660792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 66150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 662792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber if (pass == 0) { 663792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber dstSize = dstOffset; 66450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 665792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber buffer = new MediaBuffer(dstSize); 66650c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 667792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber int64_t timeUs; 668792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber CHECK(frame->meta_data()->findInt64(kKeyTime, &timeUs)); 669792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber int32_t isSync; 670792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber CHECK(frame->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)); 67150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 672792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber buffer->meta_data()->setInt64(kKeyTime, timeUs); 673792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber buffer->meta_data()->setInt32(kKeyIsSyncFrame, isSync); 67450c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 675792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber dstPtr = (uint8_t *)buffer->data(); 676792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber } 67750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber } 67850c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 679792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber frame->release(); 680792e33fd19e57e0d615d401a54ab567d04f16251Andreas Huber frame = NULL; 68150c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber 6825ec58d925520e6913fba3fc54413881af751c610Andreas Huber if (targetSampleTimeUs >= 0ll) { 6835ec58d925520e6913fba3fc54413881af751c610Andreas Huber buffer->meta_data()->setInt64( 6845ec58d925520e6913fba3fc54413881af751c610Andreas Huber kKeyTargetTime, targetSampleTimeUs); 6855ec58d925520e6913fba3fc54413881af751c610Andreas Huber } 6865ec58d925520e6913fba3fc54413881af751c610Andreas Huber 68750c8bea8fba2fcafb14696399028bdbc094dc995Andreas Huber *out = buffer; 688093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 689093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return OK; 690093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 691093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 692093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber//////////////////////////////////////////////////////////////////////////////// 693093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 694093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas HuberMatroskaExtractor::MatroskaExtractor(const sp<DataSource> &source) 695093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber : mDataSource(source), 696093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mReader(new DataSourceReader(mDataSource)), 6975279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber mSegment(NULL), 6988c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber mExtractedThumbnails(false), 699bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian mIsWebm(false), 700bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian mSeekPreRollNs(0) { 701d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber off64_t size; 702d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber mIsLiveStreaming = 703d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber (mDataSource->flags() 704d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber & (DataSource::kWantsPrefetching 705d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber | DataSource::kIsCachingDataSource)) 706d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber && mDataSource->getSize(&size) != OK; 707d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 708093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mkvparser::EBMLHeader ebmlHeader; 709093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber long long pos; 710093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (ebmlHeader.Parse(mReader, pos) < 0) { 711093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return; 712093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 713093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 7148c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber if (ebmlHeader.m_docType && !strcmp("webm", ebmlHeader.m_docType)) { 7158c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber mIsWebm = true; 7168c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber } 7178c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber 718093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber long long ret = 719093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mkvparser::Segment::CreateInstance(mReader, pos, mSegment); 720093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 721093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (ret) { 722093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber CHECK(mSegment == NULL); 723093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return; 724093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 725093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 726c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar // from mkvparser::Segment::Load(), but stop at first cluster 72710f0fe7bcd60bdb0eceb905e84ac11555e8c1b9dJohann ret = mSegment->ParseHeaders(); 728c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar if (ret == 0) { 729c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar long len; 730c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar ret = mSegment->LoadCluster(pos, len); 731c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar if (ret >= 1) { 732c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar // no more clusters 733c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar ret = 0; 734c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar } 735c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar } else if (ret > 0) { 736c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar ret = mkvparser::E_BUFFER_NOT_FULL; 737c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar } 738093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 739093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (ret < 0) { 740c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar ALOGW("Corrupt %s source: %s", mIsWebm ? "webm" : "matroska", 741c51db0a6bfb71ea9c934fb7971cb5ae1f1cf03a0Lajos Molnar uriDebugString(mDataSource->getUri()).c_str()); 742093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber delete mSegment; 743093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mSegment = NULL; 744093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return; 745093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 746093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 74774a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber#if 0 74874a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber const mkvparser::SegmentInfo *info = mSegment->GetInfo(); 749df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("muxing app: %s, writing app: %s", 75074a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber info->GetMuxingAppAsUTF8(), 75174a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber info->GetWritingAppAsUTF8()); 75274a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber#endif 75374a0a0d7f766d63330a00c3fa8f133c44c1d5be6Andreas Huber 754093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber addTracks(); 755093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 756093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 757093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas HuberMatroskaExtractor::~MatroskaExtractor() { 758093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber delete mSegment; 759093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mSegment = NULL; 760093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 761093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber delete mReader; 762093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mReader = NULL; 763093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 764093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 765093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubersize_t MatroskaExtractor::countTracks() { 766093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return mTracks.size(); 767093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 768093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 769093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubersp<MediaSource> MatroskaExtractor::getTrack(size_t index) { 770093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (index >= mTracks.size()) { 771093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return NULL; 772093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 773093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 774093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return new MatroskaSource(this, index); 775093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 776093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 777093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubersp<MetaData> MatroskaExtractor::getTrackMetaData( 778093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber size_t index, uint32_t flags) { 779093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (index >= mTracks.size()) { 780093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return NULL; 781093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 782093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 783d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if ((flags & kIncludeExtensiveMetaData) && !mExtractedThumbnails 784d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber && !isLiveStreaming()) { 7855279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber findThumbnails(); 7865279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber mExtractedThumbnails = true; 7875279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 7885279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 789093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return mTracks.itemAt(index).mMeta; 790093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 791093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 792d42573cace9db2b5948e540c32beaef80f04153cAndreas Huberbool MatroskaExtractor::isLiveStreaming() const { 793d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber return mIsLiveStreaming; 794d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber} 795d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 796403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissenstatic int bytesForSize(size_t size) { 797403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen // use at most 28 bits (4 times 7) 798403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen CHECK(size <= 0xfffffff); 799403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen 800403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen if (size > 0x1fffff) { 801403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen return 4; 802403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen } else if (size > 0x3fff) { 803403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen return 3; 804403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen } else if (size > 0x7f) { 805403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen return 2; 806403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen } 807403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen return 1; 808403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen} 809403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen 810403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissenstatic void storeSize(uint8_t *data, size_t &idx, size_t size) { 811403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int numBytes = bytesForSize(size); 812403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen idx += numBytes; 813403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen 814403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen data += idx; 815403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen size_t next = 0; 816403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen while (numBytes--) { 817403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen *--data = (size & 0x7f) | next; 818403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen size >>= 7; 819403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen next = 0x80; 820403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen } 821403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen} 822403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen 823132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kangstatic void addESDSFromCodecPrivate( 824132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang const sp<MetaData> &meta, 825132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang bool isAudio, const void *priv, size_t privSize) { 826093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 827403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int privSizeBytesRequired = bytesForSize(privSize); 828403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int esdsSize2 = 14 + privSizeBytesRequired + privSize; 829403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int esdsSize2BytesRequired = bytesForSize(esdsSize2); 830403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int esdsSize1 = 4 + esdsSize2BytesRequired + esdsSize2; 831403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen int esdsSize1BytesRequired = bytesForSize(esdsSize1); 832403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen size_t esdsSize = 1 + esdsSize1BytesRequired + esdsSize1; 833093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber uint8_t *esds = new uint8_t[esdsSize]; 834403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen 835403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen size_t idx = 0; 836403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x03; 837403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen storeSize(esds, idx, esdsSize1); 838403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x00; // ES_ID 839403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x00; // ES_ID 840403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x00; // streamDependenceFlag, URL_Flag, OCRstreamFlag 841403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x04; 842403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen storeSize(esds, idx, esdsSize2); 843403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = isAudio ? 0x40 // Audio ISO/IEC 14496-3 844403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen : 0x20; // Visual ISO/IEC 14496-2 845403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen for (int i = 0; i < 12; i++) { 846403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x00; 847403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen } 848403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen esds[idx++] = 0x05; 849403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen storeSize(esds, idx, privSize); 850403484d6d76ede31fc71c88495b69108a4df8319Marco Nelissen memcpy(esds + idx, priv, privSize); 85182ac8bf2da940c4439786c346f739f4a496864adAndreas Huber 852093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setData(kKeyESDS, 0, esds, esdsSize); 853093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 854093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber delete[] esds; 855093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber esds = NULL; 856093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 857093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8585ce181568da90c78ba7fad3e084c8479041545dfAndreas Huberstatus_t addVorbisCodecInfo( 859093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const sp<MetaData> &meta, 860093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const void *_codecPrivate, size_t codecPrivateSize) { 861093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber // hexdump(_codecPrivate, codecPrivateSize); 862093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8635ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivateSize < 1) { 8645ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 8655ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 866093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 867093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const uint8_t *codecPrivate = (const uint8_t *)_codecPrivate; 868093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8695ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivate[0] != 0x02) { 8705ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 8715ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 872093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8735ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber // codecInfo starts with two lengths, len1 and len2, that are 8745ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber // "Xiph-style-lacing encoded"... 875093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8765ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber size_t offset = 1; 8775ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber size_t len1 = 0; 8785ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber while (offset < codecPrivateSize && codecPrivate[offset] == 0xff) { 8795ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber len1 += 0xff; 8805ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber ++offset; 8815ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 8825ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (offset >= codecPrivateSize) { 8835ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 8845ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 8855ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber len1 += codecPrivate[offset++]; 886093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 8875ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber size_t len2 = 0; 8885ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber while (offset < codecPrivateSize && codecPrivate[offset] == 0xff) { 8895ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber len2 += 0xff; 8905ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber ++offset; 8915ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 8925ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (offset >= codecPrivateSize) { 8935ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 8945ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 8955ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber len2 += codecPrivate[offset++]; 8965ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 8975ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivateSize < offset + len1 + len2) { 8985ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 8995ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 9005ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 9015ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivate[offset] != 0x01) { 9025ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 9035ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 9045ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber meta->setData(kKeyVorbisInfo, 0, &codecPrivate[offset], len1); 9055ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 9065ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber offset += len1; 9075ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivate[offset] != 0x03) { 9085ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 9095ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 9105ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 9115ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber offset += len2; 9125ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (codecPrivate[offset] != 0x05) { 9135ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return ERROR_MALFORMED; 9145ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 915093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 916093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setData( 9175ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber kKeyVorbisBooks, 0, &codecPrivate[offset], 9185ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber codecPrivateSize - offset); 9195ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 9205ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber return OK; 921093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 922093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 923093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubervoid MatroskaExtractor::addTracks() { 924093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const mkvparser::Tracks *tracks = mSegment->GetTracks(); 925093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 926093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber for (size_t index = 0; index < tracks->GetTracksCount(); ++index) { 927093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const mkvparser::Track *track = tracks->GetTrackByIndex(index); 928093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 92930ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber if (track == NULL) { 93030ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber // Apparently this is currently valid (if unexpected) behaviour 93130ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber // of the mkv parser lib. 93230ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber continue; 93330ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber } 93430ae68bccd8de6f0ab2acd22a6d661ace514343eAndreas Huber 935093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const char *const codecID = track->GetCodecId(); 9363856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("codec id = %s", codecID); 9373856b090cd04ba5dd4a59a12430ed724d5995909Steve Block ALOGV("codec name = %s", track->GetCodecNameAsUTF8()); 938093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 939093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber size_t codecPrivateSize; 940093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const unsigned char *codecPrivate = 941ff1df9951d09f1a1a8ae2dbc42b82b0f9c164e5eAndreas Huber track->GetCodecPrivate(codecPrivateSize); 942093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 943093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber enum { VIDEO_TRACK = 1, AUDIO_TRACK = 2 }; 944093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 945093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber sp<MetaData> meta = new MetaData; 946093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 9475ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber status_t err = OK; 9485ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 949093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber switch (track->GetType()) { 950093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber case VIDEO_TRACK: 951093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber { 952093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const mkvparser::VideoTrack *vtrack = 953093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber static_cast<const mkvparser::VideoTrack *>(track); 954093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 955093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (!strcmp("V_MPEG4/ISO/AVC", codecID)) { 956093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC); 957093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setData(kKeyAVCC, 0, codecPrivate, codecPrivateSize); 958132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang } else if (!strcmp("V_MPEG4/ISO/ASP", codecID)) { 959132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang if (codecPrivateSize > 0) { 960132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang meta->setCString( 961132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG4); 962132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang addESDSFromCodecPrivate( 963132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang meta, false, codecPrivate, codecPrivateSize); 964132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang } else { 965132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang ALOGW("%s is detected, but does not have configuration.", 966132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang codecID); 967132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang continue; 968132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang } 969093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } else if (!strcmp("V_VP8", codecID)) { 97094705aff3c9eef58cbb72ec6fe5d2dcfd9481646hkuang meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP8); 97194705aff3c9eef58cbb72ec6fe5d2dcfd9481646hkuang } else if (!strcmp("V_VP9", codecID)) { 97294705aff3c9eef58cbb72ec6fe5d2dcfd9481646hkuang meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_VP9); 973093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } else { 974132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang ALOGW("%s is not supported.", codecID); 975093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber continue; 976093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 977093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 978093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setInt32(kKeyWidth, vtrack->GetWidth()); 979093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setInt32(kKeyHeight, vtrack->GetHeight()); 980093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber break; 981093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 982093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 983093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber case AUDIO_TRACK: 984093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber { 985093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber const mkvparser::AudioTrack *atrack = 986093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber static_cast<const mkvparser::AudioTrack *>(track); 987093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 988093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (!strcmp("A_AAC", codecID)) { 989093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC); 990093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber CHECK(codecPrivateSize >= 2); 991093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 992132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang addESDSFromCodecPrivate( 993132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang meta, true, codecPrivate, codecPrivateSize); 994093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } else if (!strcmp("A_VORBIS", codecID)) { 995093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_VORBIS); 996093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 9975ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber err = addVorbisCodecInfo( 9985ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber meta, codecPrivate, codecPrivateSize); 999bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian } else if (!strcmp("A_OPUS", codecID)) { 1000bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_OPUS); 1001bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian meta->setData(kKeyOpusHeader, 0, codecPrivate, codecPrivateSize); 1002bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian meta->setInt64(kKeyOpusCodecDelay, track->GetCodecDelay()); 1003bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian meta->setInt64(kKeyOpusSeekPreRoll, track->GetSeekPreRoll()); 1004bf927f8ec7979f2b64331c2b2f12a6a5dba05bcaVignesh Venkatasubramanian mSeekPreRollNs = track->GetSeekPreRoll(); 1005132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang } else if (!strcmp("A_MPEG/L3", codecID)) { 1006132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_MPEG); 1007093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } else { 1008132e88ee86e4f11d1b649c336cd2d6eb5980c3fcDongwon Kang ALOGW("%s is not supported.", codecID); 1009093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber continue; 1010093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 1011093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1012093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setInt32(kKeySampleRate, atrack->GetSamplingRate()); 1013093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setInt32(kKeyChannelCount, atrack->GetChannels()); 1014093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber break; 1015093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 1016093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1017093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber default: 1018093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber continue; 1019093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 1020093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 10215ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber if (err != OK) { 10225ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber ALOGE("skipping track, codec specific data was malformed."); 10235ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber continue; 10245ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber } 10255ce181568da90c78ba7fad3e084c8479041545dfAndreas Huber 1026093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber long long durationNs = mSegment->GetDuration(); 1027093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber meta->setInt64(kKeyDuration, (durationNs + 500) / 1000); 1028093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1029093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mTracks.push(); 1030093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber TrackInfo *trackInfo = &mTracks.editItemAt(mTracks.size() - 1); 1031093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber trackInfo->mTrackNum = track->GetNumber(); 1032093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber trackInfo->mMeta = meta; 10332f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih trackInfo->mExtractor = this; 1034093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 1035093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 1036093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 10375279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Hubervoid MatroskaExtractor::findThumbnails() { 10385279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber for (size_t i = 0; i < mTracks.size(); ++i) { 10395279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber TrackInfo *info = &mTracks.editItemAt(i); 10405279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 10415279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber const char *mime; 10425279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber CHECK(info->mMeta->findCString(kKeyMIMEType, &mime)); 10435279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 10445279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber if (strncasecmp(mime, "video/", 6)) { 10455279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber continue; 10465279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 10475279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 10482f46e8152fb881d3a1d7afd223f1ed51f6e358b8Robert Shih BlockIterator iter(this, info->mTrackNum, i); 10494719fa8ae1259d6a94ba5b5ecdaa01e69f553996Bernhard Rosenkraenzer int32_t j = 0; 10505279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber int64_t thumbnailTimeUs = 0; 10515279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber size_t maxBlockSize = 0; 10524719fa8ae1259d6a94ba5b5ecdaa01e69f553996Bernhard Rosenkraenzer while (!iter.eos() && j < 20) { 10535279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber if (iter.block()->IsKey()) { 10544719fa8ae1259d6a94ba5b5ecdaa01e69f553996Bernhard Rosenkraenzer ++j; 10555279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 1056d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber size_t blockSize = 0; 1057cba4ed0039c8b8fac01b3193d19fc2364f934506Tareq A. Siraj for (int k = 0; k < iter.block()->GetFrameCount(); ++k) { 1058cba4ed0039c8b8fac01b3193d19fc2364f934506Tareq A. Siraj blockSize += iter.block()->GetFrame(k).len; 1059d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber } 1060d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 10615279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber if (blockSize > maxBlockSize) { 10625279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber maxBlockSize = blockSize; 10635279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber thumbnailTimeUs = iter.blockTimeUs(); 10645279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 10655279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 10665279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber iter.advance(); 10675279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 10685279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber info->mMeta->setInt64(kKeyThumbnailTime, thumbnailTimeUs); 10695279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber } 10705279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber} 10715279d1d8c19e5fdbb177805db0da8e8aadac3079Andreas Huber 1072093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Hubersp<MetaData> MatroskaExtractor::getMetaData() { 1073093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber sp<MetaData> meta = new MetaData; 10748c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber 10758c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber meta->setCString( 10768c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber kKeyMIMEType, 10778c32b164d00d3e4d73764d06956331f09693ef43Andreas Huber mIsWebm ? "video/webm" : MEDIA_MIMETYPE_CONTAINER_MATROSKA); 1078093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1079093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return meta; 1080093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 1081093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1082d42573cace9db2b5948e540c32beaef80f04153cAndreas Huberuint32_t MatroskaExtractor::flags() const { 1083d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber uint32_t x = CAN_PAUSE; 1084d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber if (!isLiveStreaming()) { 1085d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber x |= CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK; 1086d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber } 1087d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 1088d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber return x; 1089d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber} 1090d42573cace9db2b5948e540c32beaef80f04153cAndreas Huber 1091093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huberbool SniffMatroska( 10925a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence, 10935a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber sp<AMessage> *) { 1094093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber DataSourceReader reader(source); 1095093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mkvparser::EBMLHeader ebmlHeader; 1096093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber long long pos; 1097093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber if (ebmlHeader.Parse(&reader, pos) < 0) { 1098093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return false; 1099093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber } 1100093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1101093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber mimeType->setTo(MEDIA_MIMETYPE_CONTAINER_MATROSKA); 1102093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber *confidence = 0.6; 1103093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1104093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber return true; 1105093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} 1106093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber 1107093437c388e5dff6903a3d43f2ca9f8a1ba4744aAndreas Huber} // namespace android 1108