s->print(ctx, "frame:%-4"PRId64" pts:%-7s pts_time:%-7s\n",
inlink->frame_count, av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base));
s->print(ctx, "%s=%s\n", e->key, e->value);
s->print(ctx, "frame:%-4"PRId64" pts:%-7s pts_time:%-7s\n",
inlink->frame_count, av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base));
s->print(ctx, "%s=%s\n", e->key, e->value);