outlink->frame_rate = fps;
outlink->time_base = av_mul_q(inlink->time_base, s->pts);
av_log(ctx, AV_LOG_VERBOSE, "TB: %d/%d -> %d/%d\n",
outlink->frame_rate = fps;
outlink->time_base = av_mul_q(inlink->time_base, s->pts);
av_log(ctx, AV_LOG_VERBOSE, "TB: %d/%d -> %d/%d\n",