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avconv: print a warning when falling back to default 25fps

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This commit is contained in:
Anton Khirnov 2014-01-15 21:32:38 +01:00
parent 33018907bd
commit 2ce8bca51f
1 changed files with 13 additions and 4 deletions
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17
avconv.c
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@ -1691,10 +1691,19 @@ static int transcode_init(void)
(video_sync_method == VSYNC_CFR ||
(video_sync_method == VSYNC_AUTO &&
!(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
ost->frame_rate = ist->framerate.num ? ist->framerate :
ist->st->avg_frame_rate.num ?
ist->st->avg_frame_rate :
(AVRational){25, 1};
if (ist->framerate.num)
ost->frame_rate = ist->framerate;
else if (ist->st->avg_frame_rate.num)
ost->frame_rate = ist->st->avg_frame_rate;
else {
av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
"for the output stream #%d:%d, but no information "
"about the input framerate is available. Falling "
"back to a default value of 25fps. Use the -r option "
"if you want a different framerate.\n",
ost->file_index, ost->index);
ost->frame_rate = (AVRational){ 25, 1 };
}
if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);