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-rw-r--r--apps/codecs/libcook/rm2wav.h74
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2009 Mohamed Tarek
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include <stdio.h>
22#include <stdint.h>
23
24typedef struct rm_packet
25{
26 uint8_t data[30000]; /* Reordered data. No malloc, hence the size */
27 uint16_t version;
28 uint16_t length;
29 uint32_t timestamp;
30 uint16_t stream_number;
31 uint8_t flags;
32}RMPacket;
33
34typedef struct rm_context
35{
36 /* Demux Context */
37 int old_format;
38 int current_stream;
39 int remaining_len;
40 int audio_stream_num; /*< Stream number for audio packets*/
41 int audio_pkt_cnt; /* Output packet counter*/
42
43 /* Stream Variables */
44 uint32_t audiotimestamp; /* Audio packet timestamp*/
45 uint16_t sub_packet_cnt; /* Subpacket counter, used while reading */
46 uint16_t sub_packet_size, sub_packet_h, coded_framesize; /* Descrambling parameters from container */
47 uint16_t audio_framesize; /* Audio frame size from container */
48 uint16_t sub_packet_lengths[16]; /* Length of each subpacket */
49
50 /* Codec Context */
51 uint16_t block_align;
52 uint32_t nb_packets;
53 int frame_number;
54 uint32_t extradata_size;
55 uint16_t sample_rate;
56 uint16_t nb_channels;
57 uint32_t bit_rate;
58 uint16_t flags;
59
60 /*cook extradata*/
61 uint32_t cook_version;
62 uint16_t samples_pf_pc; /* samples per frame per channel */
63 uint16_t nb_subbands; /* number of subbands in the frequency domain */
64 /* extra 8 bytes for stereo data */
65 uint32_t unused;
66 uint16_t js_subband_start; /* joint stereo subband start */
67 uint16_t js_vlc_bits;
68
69} RMContext;
70
71int open_wav(char* filename);
72void close_wav(int fd, RMContext *rmctx);
73int real_parse_header(int fd, RMContext *rmctx);
74void rm_get_packet(int fd,RMContext *rmctx, RMPacket *pkt);