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author | Jean-Baptiste Queru <jbq@google.com> | 2012-08-08 13:40:33 -0700 |
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committer | android code review <noreply-gerritcodereview@google.com> | 2012-08-08 13:40:34 -0700 |
commit | e28df5b996af3480b457c7a9908dbb9d52ad8d7c (patch) | |
tree | ab1896ce5aa5df33cce6f0f4101262b299633fe7 /media/libstagefright | |
parent | efee009528f446542d51f1ce50e2189e8a2f71dd (diff) | |
parent | efcdf187baab9ec29e12adcf85e63fe3e6d5aa4d (diff) | |
download | frameworks_av-e28df5b996af3480b457c7a9908dbb9d52ad8d7c.zip frameworks_av-e28df5b996af3480b457c7a9908dbb9d52ad8d7c.tar.gz frameworks_av-e28df5b996af3480b457c7a9908dbb9d52ad8d7c.tar.bz2 |
Merge "Store correct time stamps in recorded mp4 files"
Diffstat (limited to 'media/libstagefright')
-rwxr-xr-x | media/libstagefright/MPEG4Writer.cpp | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp index 755b502..6108298 100755 --- a/media/libstagefright/MPEG4Writer.cpp +++ b/media/libstagefright/MPEG4Writer.cpp @@ -236,11 +236,11 @@ private: void writeDrefBox(); void writeDinfBox(); void writeDamrBox(); - void writeMdhdBox(time_t now); + void writeMdhdBox(uint32_t now); void writeSmhdBox(); void writeVmhdBox(); void writeHdlrBox(); - void writeTkhdBox(time_t now); + void writeTkhdBox(uint32_t now); void writeMp4aEsdsBox(); void writeMp4vEsdsBox(); void writeAudioFourCCBox(); @@ -723,8 +723,17 @@ status_t MPEG4Writer::reset() { return err; } -void MPEG4Writer::writeMvhdBox(int64_t durationUs) { +uint32_t MPEG4Writer::getMpeg4Time() { time_t now = time(NULL); + // MP4 file uses time counting seconds since midnight, Jan. 1, 1904 + // while time function returns Unix epoch values which starts + // at 1970-01-01. Lets add the number of seconds between them + uint32_t mpeg4Time = now + (66 * 365 + 17) * (24 * 60 * 60); + return mpeg4Time; +} + +void MPEG4Writer::writeMvhdBox(int64_t durationUs) { + uint32_t now = getMpeg4Time(); beginBox("mvhd"); writeInt32(0); // version=0, flags=0 writeInt32(now); // creation time @@ -2357,7 +2366,7 @@ void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) { ALOGV("%s track time scale: %d", mIsAudio? "Audio": "Video", mTimeScale); - time_t now = time(NULL); + uint32_t now = getMpeg4Time(); mOwner->beginBox("trak"); writeTkhdBox(now); mOwner->beginBox("mdia"); @@ -2570,7 +2579,7 @@ void MPEG4Writer::Track::writeMp4vEsdsBox() { mOwner->endBox(); // esds } -void MPEG4Writer::Track::writeTkhdBox(time_t now) { +void MPEG4Writer::Track::writeTkhdBox(uint32_t now) { mOwner->beginBox("tkhd"); // Flags = 7 to indicate that the track is enabled, and // part of the presentation @@ -2639,7 +2648,7 @@ void MPEG4Writer::Track::writeHdlrBox() { mOwner->endBox(); } -void MPEG4Writer::Track::writeMdhdBox(time_t now) { +void MPEG4Writer::Track::writeMdhdBox(uint32_t now) { int64_t trakDurationUs = getDurationUs(); mOwner->beginBox("mdhd"); mOwner->writeInt32(0); // version=0, flags=0 |