memcpy(pkt->data, ty->chunk + ty->cur_chunk_pos, rec_size);
ty->cur_chunk_pos += rec_size;
pkt->stream_index = 1;
pkt->pts = ty->last_audio_pts;
} else if (subrec_type == 0x09) {
memcpy(pkt->data, ty->chunk + ty->cur_chunk_pos, rec_size);
ty->cur_chunk_pos += rec_size;
pkt->stream_index = 1;
pkt->pts = ty->last_audio_pts;
} else if (subrec_type == 0x09) {