play: Convert com_ls() to lopsub.
[paraslash.git] / opus_common.h
1 /*
2 * Copyright (C) 2013 Andre Noll <maan@tuebingen.mpg.de>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /**
8 * \file opus_common.h
9 * Common declarations for the opus decoder and audio format handler.
10 */
11
12 /** Various bits stored in the header of an opus stream. */
13 struct opus_header {
14 /** lower 4 bits of the version byte, must be 0. */
15 int version;
16 /** 1..255 */
17 int channels;
18 /** Number of bytes to skip from the beginning. */
19 uint16_t preskip;
20 /** Sample rate of the input stream, used by the audio format handler. */
21 uint32_t input_sample_rate;
22 /** In dB, should be zero whenever possible. */
23 uint16_t gain;
24 /** Number of logical streams (usually 1). */
25 int nb_streams;
26 /** Number of streams to decode as 2 channel streams. */
27 int nb_coupled;
28 /** Mapping from coded channels to output channels. */
29 unsigned char stream_map[255];
30 };
31
32 int opus_parse_header(const char *packet, int len, struct opus_header *h);