return buf;
}
+static int check_fps(int fps)
+{
+ int i;
+ static const int supported_fps[] = {24, 25, 30, 50, 60};
+
+ for (i = 0; i < FF_ARRAY_ELEMS(supported_fps); i++)
+ if (fps == supported_fps[i])
+ return 0;
+ return -1;
+}
+
static int check_timecode(void *log_ctx, AVTimecode *tc)
{
if (tc->fps <= 0) {
av_log(log_ctx, AV_LOG_ERROR, "Drop frame is only allowed with 30000/1001 FPS\n");
return AVERROR(EINVAL);
}
- switch (tc->fps) {
- case 24:
- case 25:
- case 30:
- case 50:
- case 60: return 0;
-
- default:
+ if (check_fps(tc->fps) < 0) {
av_log(log_ctx, AV_LOG_ERROR, "Timecode frame rate %d/%d not supported\n",
tc->rate.num, tc->rate.den);
return AVERROR_PATCHWELCOME;
}
+ return 0;
}
static int fps_from_frame_rate(AVRational rate)
return (rate.num + rate.den/2) / rate.den;
}
+int av_timecode_check_frame_rate(AVRational rate)
+{
+ return check_fps(fps_from_frame_rate(rate));
+}
+
int av_timecode_init(AVTimecode *tc, AVRational rate, int flags, int frame_start, void *log_ctx)
{
memset(tc, 0, sizeof(*tc));