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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.c | |
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.c')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/speex.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/speex.c b/lib/rbcodec/codecs/libspeex/speex.c new file mode 100644 index 0000000000..0dcfb3f7f6 --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/speex.c | |||
@@ -0,0 +1,252 @@ | |||
1 | /* Copyright (C) 2002 Jean-Marc Valin | ||
2 | File: speex.c | ||
3 | |||
4 | Basic Speex functions | ||
5 | |||
6 | Redistribution and use in source and binary forms, with or without | ||
7 | modification, are permitted provided that the following conditions | ||
8 | are met: | ||
9 | |||
10 | - Redistributions of source code must retain the above copyright | ||
11 | notice, this list of conditions and the following disclaimer. | ||
12 | |||
13 | - Redistributions in binary form must reproduce the above copyright | ||
14 | notice, this list of conditions and the following disclaimer in the | ||
15 | documentation and/or other materials provided with the distribution. | ||
16 | |||
17 | - Neither the name of the Xiph.org Foundation nor the names of its | ||
18 | contributors may be used to endorse or promote products derived from | ||
19 | this software without specific prior written permission. | ||
20 | |||
21 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
22 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
23 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
24 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
25 | CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
26 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
27 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
28 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
29 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
30 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
31 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
32 | |||
33 | */ | ||
34 | |||
35 | #ifdef HAVE_CONFIG_H | ||
36 | #include "config-speex.h" | ||
37 | #endif | ||
38 | |||
39 | #include "modes.h" | ||
40 | #include <math.h> | ||
41 | #include "os_support.h" | ||
42 | |||
43 | #ifndef NULL | ||
44 | #define NULL 0 | ||
45 | #endif | ||
46 | |||
47 | #define MAX_IN_SAMPLES 640 | ||
48 | |||
49 | #ifndef SPEEX_DISABLE_ENCODER | ||
50 | void *speex_encoder_init(const SpeexMode *mode) | ||
51 | { | ||
52 | return mode->enc_init(mode); | ||
53 | } | ||
54 | #endif | ||
55 | |||
56 | void *speex_decoder_init(const SpeexMode *mode) | ||
57 | { | ||
58 | return mode->dec_init(mode); | ||
59 | } | ||
60 | |||
61 | #ifndef SPEEX_DISABLE_ENCODER | ||
62 | void speex_encoder_destroy(void *state) | ||
63 | { | ||
64 | (*((SpeexMode**)state))->enc_destroy(state); | ||
65 | } | ||
66 | #endif | ||
67 | |||
68 | void speex_decoder_destroy(void *state) | ||
69 | { | ||
70 | (*((SpeexMode**)state))->dec_destroy(state); | ||
71 | } | ||
72 | |||
73 | #ifndef SPEEX_DISABLE_ENCODER | ||
74 | int speex_encode_native(void *state, spx_word16_t *in, SpeexBits *bits) | ||
75 | { | ||
76 | return (*((SpeexMode**)state))->enc(state, in, bits); | ||
77 | } | ||
78 | #endif | ||
79 | |||
80 | int speex_decode_native(void *state, SpeexBits *bits, spx_word16_t *out) | ||
81 | { | ||
82 | return (*((SpeexMode**)state))->dec(state, bits, out); | ||
83 | } | ||
84 | |||
85 | |||
86 | |||
87 | #ifdef FIXED_POINT | ||
88 | |||
89 | #ifndef SPEEX_DISABLE_ENCODER | ||
90 | #ifndef DISABLE_FLOAT_API | ||
91 | int speex_encode(void *state, float *in, SpeexBits *bits) | ||
92 | { | ||
93 | int i; | ||
94 | spx_int32_t N; | ||
95 | spx_int16_t short_in[MAX_IN_SAMPLES]; | ||
96 | speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); | ||
97 | for (i=0;i<N;i++) | ||
98 | { | ||
99 | if (in[i]>32767.f) | ||
100 | short_in[i] = 32767; | ||
101 | else if (in[i]<-32768.f) | ||
102 | short_in[i] = -32768; | ||
103 | else | ||
104 | short_in[i] = (spx_int16_t)floor(.5+in[i]); | ||
105 | } | ||
106 | return (*((SpeexMode**)state))->enc(state, short_in, bits); | ||
107 | } | ||
108 | #endif /* #ifndef DISABLE_FLOAT_API */ | ||
109 | |||
110 | int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits) | ||
111 | { | ||
112 | SpeexMode *mode; | ||
113 | mode = *(SpeexMode**)state; | ||
114 | return (mode)->enc(state, in, bits); | ||
115 | } | ||
116 | #endif /* SPEEX_DISABLE_ENCODER */ | ||
117 | |||
118 | #ifndef DISABLE_FLOAT_API | ||
119 | int speex_decode(void *state, SpeexBits *bits, float *out) | ||
120 | { | ||
121 | int i, ret; | ||
122 | spx_int32_t N; | ||
123 | spx_int16_t short_out[MAX_IN_SAMPLES]; | ||
124 | speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); | ||
125 | ret = (*((SpeexMode**)state))->dec(state, bits, short_out); | ||
126 | for (i=0;i<N;i++) | ||
127 | out[i] = short_out[i]; | ||
128 | return ret; | ||
129 | } | ||
130 | #endif /* #ifndef DISABLE_FLOAT_API */ | ||
131 | |||
132 | int speex_decode_int(void *state, SpeexBits *bits, spx_int16_t *out) | ||
133 | { | ||
134 | SpeexMode *mode = *(SpeexMode**)state; | ||
135 | return (mode)->dec(state, bits, out); | ||
136 | } | ||
137 | |||
138 | #else | ||
139 | |||
140 | int speex_encode(void *state, float *in, SpeexBits *bits) | ||
141 | { | ||
142 | return (*((SpeexMode**)state))->enc(state, in, bits); | ||
143 | } | ||
144 | |||
145 | int speex_encode_int(void *state, spx_int16_t *in, SpeexBits *bits) | ||
146 | { | ||
147 | int i; | ||
148 | spx_int32_t N; | ||
149 | float float_in[MAX_IN_SAMPLES]; | ||
150 | speex_encoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); | ||
151 | for (i=0;i<N;i++) | ||
152 | float_in[i] = in[i]; | ||
153 | return (*((SpeexMode**)state))->enc(state, float_in, bits); | ||
154 | } | ||
155 | |||
156 | int speex_decode(void *state, SpeexBits *bits, float *out) | ||
157 | { | ||
158 | return (*((SpeexMode**)state))->dec(state, bits, out); | ||
159 | } | ||
160 | |||
161 | int speex_decode_int(void *state, SpeexBits *bits, spx_int16_t *out) | ||
162 | { | ||
163 | int i; | ||
164 | spx_int32_t N; | ||
165 | float float_out[MAX_IN_SAMPLES]; | ||
166 | int ret; | ||
167 | speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &N); | ||
168 | ret = (*((SpeexMode**)state))->dec(state, bits, float_out); | ||
169 | for (i=0;i<N;i++) | ||
170 | { | ||
171 | if (float_out[i]>32767.f) | ||
172 | out[i] = 32767; | ||
173 | else if (float_out[i]<-32768.f) | ||
174 | out[i] = -32768; | ||
175 | else | ||
176 | out[i] = (spx_int16_t)floor(.5+float_out[i]); | ||
177 | } | ||
178 | return ret; | ||
179 | } | ||
180 | #endif | ||
181 | |||
182 | #ifndef SPEEX_DISABLE_ENCODER | ||
183 | int speex_encoder_ctl(void *state, int request, void *ptr) | ||
184 | { | ||
185 | return (*((SpeexMode**)state))->enc_ctl(state, request, ptr); | ||
186 | } | ||
187 | #endif | ||
188 | |||
189 | int speex_decoder_ctl(void *state, int request, void *ptr) | ||
190 | { | ||
191 | return (*((SpeexMode**)state))->dec_ctl(state, request, ptr); | ||
192 | } | ||
193 | |||
194 | int nb_mode_query(const void *mode, int request, void *ptr) | ||
195 | { | ||
196 | const SpeexNBMode *m = (const SpeexNBMode*)mode; | ||
197 | |||
198 | switch (request) | ||
199 | { | ||
200 | case SPEEX_MODE_FRAME_SIZE: | ||
201 | *((int*)ptr)=m->frameSize; | ||
202 | break; | ||
203 | case SPEEX_SUBMODE_BITS_PER_FRAME: | ||
204 | if (*((int*)ptr)==0) | ||
205 | *((int*)ptr) = NB_SUBMODE_BITS+1; | ||
206 | else if (m->submodes[*((int*)ptr)]==NULL) | ||
207 | *((int*)ptr) = -1; | ||
208 | else | ||
209 | *((int*)ptr) = m->submodes[*((int*)ptr)]->bits_per_frame; | ||
210 | break; | ||
211 | default: | ||
212 | speex_warning_int("Unknown nb_mode_query request: ", request); | ||
213 | return -1; | ||
214 | } | ||
215 | return 0; | ||
216 | } | ||
217 | |||
218 | |||
219 | |||
220 | int speex_lib_ctl(int request, void *ptr) | ||
221 | { | ||
222 | switch (request) | ||
223 | { | ||
224 | case SPEEX_LIB_GET_MAJOR_VERSION: | ||
225 | *((int*)ptr) = SPEEX_MAJOR_VERSION; | ||
226 | break; | ||
227 | case SPEEX_LIB_GET_MINOR_VERSION: | ||
228 | *((int*)ptr) = SPEEX_MINOR_VERSION; | ||
229 | break; | ||
230 | case SPEEX_LIB_GET_MICRO_VERSION: | ||
231 | *((int*)ptr) = SPEEX_MICRO_VERSION; | ||
232 | break; | ||
233 | case SPEEX_LIB_GET_EXTRA_VERSION: | ||
234 | *((const char**)ptr) = SPEEX_EXTRA_VERSION; | ||
235 | break; | ||
236 | case SPEEX_LIB_GET_VERSION_STRING: | ||
237 | *((const char**)ptr) = SPEEX_VERSION; | ||
238 | break; | ||
239 | /*case SPEEX_LIB_SET_ALLOC_FUNC: | ||
240 | break; | ||
241 | case SPEEX_LIB_GET_ALLOC_FUNC: | ||
242 | break; | ||
243 | case SPEEX_LIB_SET_FREE_FUNC: | ||
244 | break; | ||
245 | case SPEEX_LIB_GET_FREE_FUNC: | ||
246 | break;*/ | ||
247 | default: | ||
248 | speex_warning_int("Unknown wb_mode_query request: ", request); | ||
249 | return -1; | ||
250 | } | ||
251 | return 0; | ||
252 | } | ||