diff --git a/libavfilter/vf_telecine.c b/libavfilter/vf_telecine.c index a0f28d4f35..c75395a327 100644 --- a/libavfilter/vf_telecine.c +++ b/libavfilter/vf_telecine.c @@ -38,6 +38,7 @@ typedef struct { int first_field; char *pattern; unsigned int pattern_pos; + int64_t start_time; AVRational pts; double ts_unit; @@ -89,6 +90,8 @@ static av_cold int init(AVFilterContext *ctx) s->pts.den += *p - '0'; } + s->start_time = AV_NOPTS_VALUE; + s->out_cnt = (max + 1) / 2; av_log(ctx, AV_LOG_INFO, "Telecine pattern %s yields up to %d frames per frame, pts advance factor: %d/%d\n", s->pattern, s->out_cnt, s->pts.num, s->pts.den); @@ -173,6 +176,9 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) TelecineContext *s = ctx->priv; int i, len, ret = 0, nout = 0; + if (s->start_time == AV_NOPTS_VALUE) + s->start_time = inpicref->pts; + len = s->pattern[s->pattern_pos] - '0'; s->pattern_pos++; @@ -235,7 +241,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref) return AVERROR(ENOMEM); } - frame->pts = outlink->frame_count * s->ts_unit; + frame->pts = ((s->start_time == AV_NOPTS_VALUE) ? 0 : s->start_time) + + outlink->frame_count * s->ts_unit; ret = ff_filter_frame(outlink, frame); } av_frame_free(&inpicref);