iqbalrifai
/
Aegisub
mirror of https://github.com/odrling/Aegisub
1
0
Fork 0
Code Issues Releases Wiki Activity

FFmpegSource 1.7 

Originally committed to SVN as r1471.
This commit is contained in:
Fredrik Mellbin 2007-08-06 15:49:57 +00:00
parent 4e48317803
commit acc6e13022
2 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
FFmpegSource/ffmpegsource.cpp
View File

@ -112,6 +112,7 @@ public:
// Fix for mpeg2 and other formats where decoding a frame is necessary to get information about the stream
if (VideoCodecContext->pix_fmt == PIX_FMT_NONE) {
mkv_SetTrackMask(MF, ~(1 << VideoTrack));
int64_t Dummy;
DecodeNextFrame(DecodeFrame, &Dummy, Env);
mkv_Seek(MF, 0, MKVF_SEEK_TO_PREV_KEYFRAME);
@ -245,13 +246,13 @@ public:
if (VideoTrack >= 0) {
mkv_SetTrackMask(MF, ~(1 << VideoTrack));
// Calculate the average framerate
if (FrameToDTS.size() >= 2) {
double DTSDiff = (double)(FrameToDTS.back().DTS - FrameToDTS.front().DTS);
VI.fps_denominator = (unsigned int)(DTSDiff * mkv_TruncFloat(VideoTI->TimecodeScale) / (double)1000 / (double)(VI.num_frames - 1) + 0.5);
VI.fps_numerator = 1000000;
}
if (!SaveTimecodesToFile(ATimecodes, mkv_TruncFloat(VideoTI->TimecodeScale), 1000000))
Env->ThrowError("FFmpegSource: Failed to write timecodes");
}
@ -541,6 +542,7 @@ public:
if (!SaveTimecodesToFile(ATimecodes, FormatContext->streams[VideoTrack]->time_base.num * 1000, FormatContext->streams[VideoTrack]->time_base.den))
Env->ThrowError("FFmpegSource: Failed to write timecodes");
// Adjust framerate to match the duration of the first frame
if (FrameToDTS.size() >= 2) {
int64_t DTSDiff = (double)(FrameToDTS[1].DTS - FrameToDTS[0].DTS);
VI.fps_denominator *= DTSDiff;

5
FFmpegSource/ffmpegsource.html
View File

@ -9,6 +9,11 @@ FFmpegSource Documentation
<h2>Changes</h2>
<ul>
<li>1.7<ul>
<li>Updated FFmpeg</li>
<li>Fixed error with mkv for codecs without codec private data and the first packet doesn't belong to them</li>
</ul></li>
<li>1.6<ul>
<li>Fixed ac3 and other formats stored in mkv</li>
<li>Skip unnecessary seeking when index information already exists (gif file opening only 3/4 broken now)</li>