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author | Sean Bartell <wingedtachikoma@gmail.com> | 2011-06-25 21:32:25 -0400 |
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committer | Nils Wallménius <nils@rockbox.org> | 2012-04-25 22:13:20 +0200 |
commit | f40bfc9267b13b54e6379dfe7539447662879d24 (patch) | |
tree | 9b20069d5e62809ff434061ad730096836f916f2 /lib/rbcodec/codecs/librm/rm.h | |
parent | a0009907de7a0107d49040d8a180f140e2eff299 (diff) | |
download | rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.tar.gz rockbox-f40bfc9267b13b54e6379dfe7539447662879d24.zip |
Add codecs to librbcodec.
Change-Id: Id7f4717d51ed02d67cb9f9cb3c0ada4a81843f97
Reviewed-on: http://gerrit.rockbox.org/137
Reviewed-by: Nils Wallménius <nils@rockbox.org>
Tested-by: Nils Wallménius <nils@rockbox.org>
Diffstat (limited to 'lib/rbcodec/codecs/librm/rm.h')
-rw-r--r-- | lib/rbcodec/codecs/librm/rm.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/librm/rm.h b/lib/rbcodec/codecs/librm/rm.h new file mode 100644 index 0000000000..c4a4e3a77e --- /dev/null +++ b/lib/rbcodec/codecs/librm/rm.h | |||
@@ -0,0 +1,102 @@ | |||
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 | #ifndef _RM_H | ||
22 | #define _RM_H | ||
23 | |||
24 | #include <stdio.h> | ||
25 | #include <inttypes.h> | ||
26 | #include "bytestream.h" | ||
27 | |||
28 | #define MAX_EXTRADATA_SIZE 16 | ||
29 | #define DATA_HEADER_SIZE 18 | ||
30 | #define PACKET_HEADER_SIZE 12 | ||
31 | |||
32 | enum codecs { | ||
33 | CODEC_COOK, | ||
34 | CODEC_AAC, | ||
35 | CODEC_AC3, | ||
36 | CODEC_ATRAC | ||
37 | }; | ||
38 | |||
39 | typedef struct rm_packet | ||
40 | { | ||
41 | uint8_t *frames[100]; /* Pointers to ordered audio frames in buffer */ | ||
42 | uint16_t version; | ||
43 | uint16_t length; | ||
44 | uint32_t timestamp; | ||
45 | uint16_t stream_number; | ||
46 | uint8_t flags; | ||
47 | |||
48 | #ifdef TEST | ||
49 | uint8_t data[30000]; /* Reordered data. No malloc, hence the size */ | ||
50 | #endif | ||
51 | }RMPacket; | ||
52 | |||
53 | typedef struct rm_context | ||
54 | { | ||
55 | /* Demux Context */ | ||
56 | int old_format; | ||
57 | int current_stream; | ||
58 | int remaining_len; | ||
59 | int audio_stream_num; /*< Stream number for audio packets*/ | ||
60 | int audio_pkt_cnt; /* Output packet counter*/ | ||
61 | |||
62 | /* Stream Variables */ | ||
63 | uint32_t data_offset; | ||
64 | uint32_t duration; | ||
65 | uint32_t audiotimestamp; /* Audio packet timestamp*/ | ||
66 | uint16_t sub_packet_cnt; /* Subpacket counter, used while reading */ | ||
67 | uint16_t sub_packet_size, sub_packet_h, coded_framesize; /* Descrambling parameters from container */ | ||
68 | uint16_t audio_framesize; /* Audio frame size from container */ | ||
69 | uint16_t sub_packet_lengths[16]; /* Length of each subpacket */ | ||
70 | |||
71 | /* Codec Context */ | ||
72 | enum codecs codec_type; | ||
73 | uint16_t block_align; | ||
74 | uint32_t nb_packets; | ||
75 | int frame_number; | ||
76 | uint16_t sample_rate; | ||
77 | uint16_t nb_channels; | ||
78 | uint32_t bit_rate; | ||
79 | uint16_t flags; | ||
80 | |||
81 | /*codec extradata*/ | ||
82 | uint32_t extradata_size; | ||
83 | uint8_t codec_extradata[MAX_EXTRADATA_SIZE]; | ||
84 | |||
85 | } RMContext; | ||
86 | |||
87 | int real_parse_header(int fd, RMContext *rmctx); | ||
88 | |||
89 | /* Get a (sub_packet_h*frames_per_packet) number of audio frames from a memory buffer */ | ||
90 | int rm_get_packet(uint8_t **src,RMContext *rmctx, RMPacket *pkt); | ||
91 | |||
92 | #ifdef TEST | ||
93 | |||
94 | int filesize(int fd); | ||
95 | void advance_buffer(uint8_t **buf, int val); | ||
96 | |||
97 | /* Get a (sub_packet_h*frames_per_packet) number of audio frames from a file descriptor */ | ||
98 | void rm_get_packet_fd(int fd,RMContext *rmctx, RMPacket *pkt); | ||
99 | |||
100 | #endif /* TEST */ | ||
101 | |||
102 | #endif /* _RM_H */ | ||