Opus
Opus audio codec (RFC 6716): API and operations manual
1.2
opus_custom.h
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1 /* Copyright (c) 2007-2008 CSIRO
2  Copyright (c) 2007-2009 Xiph.Org Foundation
3  Copyright (c) 2008-2012 Gregory Maxwell
4  Written by Jean-Marc Valin and Gregory Maxwell */
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  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29 
35 #ifndef OPUS_CUSTOM_H
36 #define OPUS_CUSTOM_H
37 
38 #include "opus_defines.h"
39 
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
43 
44 #ifdef CUSTOM_MODES
45 # define OPUS_CUSTOM_EXPORT OPUS_EXPORT
46 # define OPUS_CUSTOM_EXPORT_STATIC OPUS_EXPORT
47 #else
48 # define OPUS_CUSTOM_EXPORT
49 # ifdef OPUS_BUILD
50 # define OPUS_CUSTOM_EXPORT_STATIC static OPUS_INLINE
51 # else
52 # define OPUS_CUSTOM_EXPORT_STATIC
53 # endif
54 #endif
55 
96 
103 
111 
121 OPUS_CUSTOM_EXPORT OPUS_WARN_UNUSED_RESULT OpusCustomMode *opus_custom_mode_create(opus_int32 Fs, int frame_size, int *error);
122 
128 
129 
130 #if !defined(OPUS_BUILD) || defined(CELT_ENCODER_C)
131 
132 /* Encoder */
138 OPUS_CUSTOM_EXPORT_STATIC OPUS_WARN_UNUSED_RESULT int opus_custom_encoder_get_size(
139  const OpusCustomMode *mode,
140  int channels
141 ) OPUS_ARG_NONNULL(1);
142 
143 # ifdef CUSTOM_MODES
144 
156 OPUS_CUSTOM_EXPORT int opus_custom_encoder_init(
157  OpusCustomEncoder *st,
158  const OpusCustomMode *mode,
159  int channels
160 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(2);
161 # endif
162 #endif
163 
164 
175  const OpusCustomMode *mode,
176  int channels,
177  int *error
178 ) OPUS_ARG_NONNULL(1);
179 
180 
185 
203 OPUS_CUSTOM_EXPORT OPUS_WARN_UNUSED_RESULT int opus_custom_encode_float(
204  OpusCustomEncoder *st,
205  const float *pcm,
206  int frame_size,
207  unsigned char *compressed,
208  int maxCompressedBytes
209 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(2) OPUS_ARG_NONNULL(4);
210 
224 OPUS_CUSTOM_EXPORT OPUS_WARN_UNUSED_RESULT int opus_custom_encode(
225  OpusCustomEncoder *st,
226  const opus_int16 *pcm,
227  int frame_size,
228  unsigned char *compressed,
229  int maxCompressedBytes
230 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(2) OPUS_ARG_NONNULL(4);
231 
238 OPUS_CUSTOM_EXPORT int opus_custom_encoder_ctl(OpusCustomEncoder * OPUS_RESTRICT st, int request, ...) OPUS_ARG_NONNULL(1);
239 
240 
241 #if !defined(OPUS_BUILD) || defined(CELT_DECODER_C)
242 /* Decoder */
243 
249 OPUS_CUSTOM_EXPORT_STATIC OPUS_WARN_UNUSED_RESULT int opus_custom_decoder_get_size(
250  const OpusCustomMode *mode,
251  int channels
252 ) OPUS_ARG_NONNULL(1);
253 
267  OpusCustomDecoder *st,
268  const OpusCustomMode *mode,
269  int channels
270 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(2);
271 
272 #endif
273 
274 
284  const OpusCustomMode *mode,
285  int channels,
286  int *error
287 ) OPUS_ARG_NONNULL(1);
288 
293 
303 OPUS_CUSTOM_EXPORT OPUS_WARN_UNUSED_RESULT int opus_custom_decode_float(
304  OpusCustomDecoder *st,
305  const unsigned char *data,
306  int len,
307  float *pcm,
308  int frame_size
309 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(4);
310 
320 OPUS_CUSTOM_EXPORT OPUS_WARN_UNUSED_RESULT int opus_custom_decode(
321  OpusCustomDecoder *st,
322  const unsigned char *data,
323  int len,
324  opus_int16 *pcm,
325  int frame_size
326 ) OPUS_ARG_NONNULL(1) OPUS_ARG_NONNULL(4);
327 
334 OPUS_CUSTOM_EXPORT int opus_custom_decoder_ctl(OpusCustomDecoder * OPUS_RESTRICT st, int request, ...) OPUS_ARG_NONNULL(1);
335 
338 #ifdef __cplusplus
339 }
340 #endif
341 
342 #endif /* OPUS_CUSTOM_H */
int opus_custom_decode_float(OpusCustomDecoder *st, const unsigned char *data, int len, float *pcm, int frame_size)
Decode an opus custom frame with floating point output.
#define OPUS_CUSTOM_EXPORT
Definition: opus_custom.h:48
short opus_int16
Definition: opus_types.h:144
struct OpusCustomMode OpusCustomMode
The mode contains all the information necessary to create an encoder.
Definition: opus_custom.h:110
int opus_custom_decoder_init(OpusCustomDecoder *st, const OpusCustomMode *mode, int channels)
Initializes a previously allocated decoder state The memory pointed to by st must be the size returne...
#define OPUS_CUSTOM_EXPORT_STATIC
Definition: opus_custom.h:52
int opus_custom_encoder_ctl(OpusCustomEncoder *OPUS_RESTRICT st, int request,...)
Perform a CTL function on an Opus custom encoder.
int opus_custom_encoder_get_size(const OpusCustomMode *mode, int channels)
Gets the size of an OpusCustomEncoder structure.
int opus_custom_encode(OpusCustomEncoder *st, const opus_int16 *pcm, int frame_size, unsigned char *compressed, int maxCompressedBytes)
Encodes a frame of audio.
Opus reference implementation constants.
OpusCustomMode * opus_custom_mode_create(opus_int32 Fs, int frame_size, int *error)
Creates a new mode struct.
int opus_custom_decoder_ctl(OpusCustomDecoder *OPUS_RESTRICT st, int request,...)
Perform a CTL function on an Opus custom decoder.
int opus_custom_decoder_get_size(const OpusCustomMode *mode, int channels)
Gets the size of an OpusCustomDecoder structure.
int opus_int32
Definition: opus_types.h:146
struct OpusCustomDecoder OpusCustomDecoder
State of the decoder.
Definition: opus_custom.h:102
OpusCustomDecoder * opus_custom_decoder_create(const OpusCustomMode *mode, int channels, int *error)
Creates a new decoder state.
struct OpusCustomEncoder OpusCustomEncoder
Contains the state of an encoder.
Definition: opus_custom.h:95
void opus_custom_encoder_destroy(OpusCustomEncoder *st)
Destroys a an encoder state.
int opus_custom_encode_float(OpusCustomEncoder *st, const float *pcm, int frame_size, unsigned char *compressed, int maxCompressedBytes)
Encodes a frame of audio.
void opus_custom_mode_destroy(OpusCustomMode *mode)
Destroys a mode struct.
OpusCustomEncoder * opus_custom_encoder_create(const OpusCustomMode *mode, int channels, int *error)
Creates a new encoder state.
void opus_custom_decoder_destroy(OpusCustomDecoder *st)
Destroys a an decoder state.
int opus_custom_decode(OpusCustomDecoder *st, const unsigned char *data, int len, opus_int16 *pcm, int frame_size)
Decode an opus custom frame.
For more information visit the Opus Website.