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Code Issues Releases Activity

avutil/timecode: cosmetics on av_timecode_get_smpte

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2020-07-20 22:33:20 +02:00
parent 00117e28c1
commit d0596e0bb0
1 changed files with 4 additions and 7 deletions

11
libavutil/timecode.c

@ -71,31 +71,28 @@ uint32_t av_timecode_get_smpte_from_framenum(const AVTimecode *tc, int framenum)
uint32_t av_timecode_get_smpte(AVRational rate, int drop, int hh, int mm, int ss, int ff)
{
uint32_t tc = 0;
uint32_t frames;
/* For SMPTE 12-M timecodes, frame count is a special case if > 30 FPS.
See SMPTE ST 12-1:2014 Sec 12.1 for more info. */
if (av_cmp_q(rate, (AVRational) {30, 1}) == 1) {
frames = ff / 2;
if (ff % 2 == 1) {
if (av_cmp_q(rate, (AVRational) {50, 1}) == 0)
tc |= (1 << 7);
else
tc |= (1 << 23);
}
} else {
frames = ff;
ff /= 2;
}
tc |= drop << 30;
tc |= (frames / 10) << 28;
tc |= (frames % 10) << 24;
tc |= (ff / 10) << 28;
tc |= (ff % 10) << 24;
tc |= (ss / 10) << 20;
tc |= (ss % 10) << 16;
tc |= (mm / 10) << 12;
tc |= (mm % 10) << 8;
tc |= (hh / 10) << 4;
tc |= (hh % 10);
tc |= (hh % 10);
return tc;
}