diff options
| author | Marton Balint <cus@passwd.hu> | 2012-05-07 20:27:08 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-05-14 23:40:46 +0200 |
| commit | 94a9ac127703eb6af25dd474b0f6ce5e2b54bdee (patch) | |
| tree | 5ae694935d3c12ad39a833196c460a8b07a4ddee /doc | |
| parent | 9cf5bcded074cf3294ee1bd4800ec54f1a09a979 (diff) | |
lavf: add av_guess_frame_sample_aspect_ratio function
Guesses the sample aspect ratio of a frame, based on both the stream and the
frame aspect ratio.
Since the frame aspect ratio is set by the codec but the stream aspect ratio
is set by the demuxer, these two may not be equal. This function tries to
return the value that you should use if you would like to display the frame.
Basic logic is to use the stream aspect ratio if it is set to something sane
otherwise use the frame aspect ratio. This way a container setting, which is
usually easy to modify can override the coded value in the frames.
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/APIchanges | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/APIchanges b/doc/APIchanges index 57537228b1..2d25d49114 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2011-04-18 API changes, most recent first: +2012-05-07 - xxxxxxx - lavf 54.5.100 + Add av_guess_sample_aspect_ratio() function. + 2012-04-20 - xxxxxxx - lavfi 2.70.100 Add avfilter_unref_bufferp() to avfilter.h. |