avio_tell(pb) - 20, pts, file, 0, AVINDEX_KEYFRAME);
size -= 4;
} else if (ast && type == MKTAG('A', 'U', 'D', 'F') && size >= 4) {
uint64_t pts = avio_rl32(pb);
avio_tell(pb) - 20, pts, file, 0, AVINDEX_KEYFRAME);
size -= 4;
} else if (ast && type == MKTAG('A', 'U', 'D', 'F') && size >= 4) {
uint64_t pts = avio_rl32(pb);