+ int width, height, frame_rate_nom, frame_rate_den, extra_lines_top, extra_lines_bottom;
+ bool interlaced;
+
+ decode_video_format(video_format, &width, &height, &extra_lines_top, &extra_lines_bottom,
+ &frame_rate_nom, &frame_rate_den, &interlaced); // Ignore return value for now.
+ int64_t frame_length = TIMEBASE * frame_rate_den / frame_rate_nom;
+
+ size_t num_samples = (audio_frame.len >= audio_offset) ? (audio_frame.len - audio_offset) / 8 / 3 : 0;
+ if (num_samples > OUTPUT_FREQUENCY / 10) {