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ffmpeg: print warning if encoding would duplicate massive amounts of frames

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-06-20 20:13:26 +02:00
parent 54dd50d14d
commit cfbaeb311d
1 changed files with 5 additions and 0 deletions
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5
ffmpeg.c
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@ -2326,6 +2326,11 @@ static int transcode(AVFormatContext **output_files,
ost->frame_rate = ost->enc->supported_framerates[idx];
}
codec->time_base = (AVRational){ost->frame_rate.den, ost->frame_rate.num};
if( av_q2d(codec->time_base) < 0.001 && video_sync_method
&& (video_sync_method==1 || (video_sync_method<0 && !(os->oformat->flags & AVFMT_VARIABLE_FPS)))){
av_log(os, AV_LOG_WARNING, "Frame rate very high for a muxer not effciciently supporting it.\n"
"Please consider specifiying a lower framerate, a different muxer or -vsync 2\n");
}
#if CONFIG_AVFILTER
if (configure_video_filters(ist, ost)) {