fftools/ffmpeg: fix computing video frame duration from repeat_pict

This field contains the number of _field_ durations by which the standard frame duration should be extended.

Anton Khirnov committed 3 years ago

Commit 78e84c01 parent d45a2961 file · +4 −4Browse files

Unified · Split

fftools/ffmpeg.c+4−4

@@ -990,10 +990,10 @@ static int64_t video_duration_estimate(const InputStream ist, const AVFrame fr · 989 unmodified lines
990	return frame->duration;	990	return frame->duration;
991		991
992	if (ist->dec_ctx->framerate.den && ist->dec_ctx->framerate.num) {	992	if (ist->dec_ctx->framerate.den && ist->dec_ctx->framerate.num) {
993	int ticks = frame->repeat_pict >= 0 ?	993	int fields = frame->repeat_pict + 2;
994	frame->repeat_pict + 1 :	994	AVRational field_rate = av_mul_q(ist->dec_ctx->framerate,
995	ist->dec_ctx->ticks_per_frame;	995	(AVRational){ 2, 1 });
996	codec_duration = av_rescale_q(ticks, av_inv_q(ist->dec_ctx->framerate),	996	codec_duration = av_rescale_q(fields, av_inv_q(field_rate),
997	ist->st->time_base);	997	ist->st->time_base);
998	}	998	}
999		999