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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/libspeex/speex/speex_header.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/libspeex/speex/speex_header.h')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/speex/speex_header.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/speex/speex_header.h b/lib/rbcodec/codecs/libspeex/speex/speex_header.h new file mode 100644 index 0000000000..2b60003fe9 --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/speex/speex_header.h | |||
@@ -0,0 +1,91 @@ | |||
1 | /* Copyright (C) 2002 Jean-Marc Valin */ | ||
2 | /** | ||
3 | @file speex_header.h | ||
4 | @brief Describes the Speex header | ||
5 | */ | ||
6 | /* | ||
7 | Redistribution and use in source and binary forms, with or without | ||
8 | modification, are permitted provided that the following conditions | ||
9 | are met: | ||
10 | |||
11 | - Redistributions of source code must retain the above copyright | ||
12 | notice, this list of conditions and the following disclaimer. | ||
13 | |||
14 | - Redistributions in binary form must reproduce the above copyright | ||
15 | notice, this list of conditions and the following disclaimer in the | ||
16 | documentation and/or other materials provided with the distribution. | ||
17 | |||
18 | - Neither the name of the Xiph.org Foundation nor the names of its | ||
19 | contributors may be used to endorse or promote products derived from | ||
20 | this software without specific prior written permission. | ||
21 | |||
22 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
23 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
24 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
25 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
26 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
27 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
28 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
29 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
30 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
31 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
32 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
33 | |||
34 | */ | ||
35 | |||
36 | |||
37 | #ifndef SPEEX_HEADER_H | ||
38 | #define SPEEX_HEADER_H | ||
39 | /** @defgroup SpeexHeader SpeexHeader: Makes it easy to write/parse an Ogg/Speex header | ||
40 | * This is the Speex header for the Ogg encapsulation. You don't need that if you just use RTP. | ||
41 | * @{ | ||
42 | */ | ||
43 | |||
44 | #include "speex_types.h" | ||
45 | |||
46 | #ifdef __cplusplus | ||
47 | extern "C" { | ||
48 | #endif | ||
49 | |||
50 | struct SpeexMode; | ||
51 | |||
52 | /** Length of the Speex header identifier */ | ||
53 | #define SPEEX_HEADER_STRING_LENGTH 8 | ||
54 | |||
55 | /** Maximum number of characters for encoding the Speex version number in the header */ | ||
56 | #define SPEEX_HEADER_VERSION_LENGTH 20 | ||
57 | |||
58 | /** Speex header info for file-based formats */ | ||
59 | typedef struct SpeexHeader { | ||
60 | char speex_string[SPEEX_HEADER_STRING_LENGTH]; /**< Identifies a Speex bit-stream, always set to "Speex " */ | ||
61 | char speex_version[SPEEX_HEADER_VERSION_LENGTH]; /**< Speex version */ | ||
62 | spx_int32_t speex_version_id; /**< Version for Speex (for checking compatibility) */ | ||
63 | spx_int32_t header_size; /**< Total size of the header ( sizeof(SpeexHeader) ) */ | ||
64 | spx_int32_t rate; /**< Sampling rate used */ | ||
65 | spx_int32_t mode; /**< Mode used (0 for narrowband, 1 for wideband) */ | ||
66 | spx_int32_t mode_bitstream_version; /**< Version ID of the bit-stream */ | ||
67 | spx_int32_t nb_channels; /**< Number of channels encoded */ | ||
68 | spx_int32_t bitrate; /**< Bit-rate used */ | ||
69 | spx_int32_t frame_size; /**< Size of frames */ | ||
70 | spx_int32_t vbr; /**< 1 for a VBR encoding, 0 otherwise */ | ||
71 | spx_int32_t frames_per_packet; /**< Number of frames stored per Ogg packet */ | ||
72 | spx_int32_t extra_headers; /**< Number of additional headers after the comments */ | ||
73 | spx_int32_t reserved1; /**< Reserved for future use, must be zero */ | ||
74 | spx_int32_t reserved2; /**< Reserved for future use, must be zero */ | ||
75 | } SpeexHeader; | ||
76 | |||
77 | /** Initializes a SpeexHeader using basic information */ | ||
78 | void speex_init_header(SpeexHeader *header, int rate, int nb_channels, const struct SpeexMode *m); | ||
79 | |||
80 | /** Creates the header packet from the header itself (mostly involves endianness conversion) */ | ||
81 | char *speex_header_to_packet(SpeexHeader *header, int *size); | ||
82 | |||
83 | /** Creates a SpeexHeader from a packet */ | ||
84 | SpeexHeader *speex_packet_to_header(char *packet, int size); | ||
85 | |||
86 | #ifdef __cplusplus | ||
87 | } | ||
88 | #endif | ||
89 | |||
90 | /** @} */ | ||
91 | #endif | ||