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Diffstat (limited to 'doc/ffmpeg-resampler.texi')
| -rw-r--r-- | doc/ffmpeg-resampler.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/ffmpeg-resampler.texi b/doc/ffmpeg-resampler.texi index 4fb5771687..e20279525d 100644 --- a/doc/ffmpeg-resampler.texi +++ b/doc/ffmpeg-resampler.texi @@ -172,6 +172,14 @@ may be stretched or squeezed for each second. Default value is 0, thus no compensation is applied to make the samples match the audio timestamps. +@item first_pts +For swr only, assume the first pts should be this value. The time unit is 1 / sample rate. +This allows for padding/trimming at the start of stream. By default, no +assumption is made about the first frame's expected pts, so no padding or +trimming is done. For example, this could be set to 0 to pad the beginning with +silence if an audio stream starts after the video stream or to trim any samples +with a negative pts due to encoder delay. + @item min_comp For swr only, set the minimum difference between timestamps and audio data (in seconds) to trigger stretching/squeezing/filling or trimming of the |