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avformat/movenc: factor out find_fps() 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-10-07 17:35:13 +02:00
parent 2dce4abe50
commit 8c0f565ee3
1 changed files with 14 additions and 8 deletions
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22
libavformat/movenc.c
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@ -884,6 +884,19 @@ static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
return tag;
}
static AVRational find_fps(AVFormatContext *s, AVStream *st)
{
AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
/* if the codec time base makes no sense, try to fallback on stream frame rate */
if (av_timecode_check_frame_rate(rate) < 0) {
av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
rate = st->avg_frame_rate;
}
return rate;
}
static const struct {
enum AVPixelFormat pix_fmt;
uint32_t tag;
@ -3490,14 +3503,7 @@ static int mov_create_timecode_track(AVFormatContext *s, int index, int src_inde
AVStream *src_st = s->streams[src_index];
AVTimecode tc;
AVPacket pkt = {.stream_index = index, .flags = AV_PKT_FLAG_KEY, .size = 4};
AVRational rate = {src_st->codec->time_base.den, src_st->codec->time_base.num};
/* if the codec time base makes no sense, try to fallback on stream frame rate */
if (av_timecode_check_frame_rate(rate) < 0) {
av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
rate.num, rate.den, src_st->avg_frame_rate.num, src_st->avg_frame_rate.den);
rate = src_st->avg_frame_rate;
}
AVRational rate = find_fps(s, src_st);
/* compute the frame number */
ret = av_timecode_init_from_string(&tc, rate, tcstr, s);