Speex  1.2~beta4
speex_stereo.h
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1 /* Copyright (C) 2002 Jean-Marc Valin*/
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
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33 */
34 
35 #ifndef STEREO_H
36 #define STEREO_H
42 #include "speex/speex_types.h"
43 #include "speex/speex_bits.h"
44 
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48 
50 typedef struct SpeexStereoState {
51  float balance;
52  float e_ratio;
53  float smooth_left;
54  float smooth_right;
55  float reserved1;
56  float reserved2;
58 
60 #define SPEEX_STEREO_STATE_INIT {1,.5,1,1,0,0}
61 
64 
67 
70 
72 void speex_encode_stereo(float *data, int frame_size, SpeexBits *bits);
73 
75 void speex_encode_stereo_int(spx_int16_t *data, int frame_size, SpeexBits *bits);
76 
78 void speex_decode_stereo(float *data, int frame_size, SpeexStereoState *stereo);
79 
81 void speex_decode_stereo_int(spx_int16_t *data, int frame_size, SpeexStereoState *stereo);
82 
84 int speex_std_stereo_request_handler(SpeexBits *bits, void *state, void *data);
85 
86 #ifdef __cplusplus
87 }
88 #endif
89 
91 #endif
void speex_encode_stereo_int(spx_int16_t *data, int frame_size, SpeexBits *bits)
void speex_decode_stereo(float *data, int frame_size, SpeexStereoState *stereo)
int speex_std_stereo_request_handler(SpeexBits *bits, void *state, void *data)
struct SpeexStereoState SpeexStereoState
SpeexStereoState * speex_stereo_state_init()
void speex_stereo_state_destroy(SpeexStereoState *stereo)
void speex_stereo_state_reset(SpeexStereoState *stereo)
void speex_decode_stereo_int(spx_int16_t *data, int frame_size, SpeexStereoState *stereo)
void speex_encode_stereo(float *data, int frame_size, SpeexBits *bits)
Handles bit packing/unpacking.
Speex types.
Definition: speex_bits.h:49
Definition: speex_stereo.h:50
float balance
Definition: speex_stereo.h:51
float e_ratio
Definition: speex_stereo.h:52
float reserved1
Definition: speex_stereo.h:55
float smooth_left
Definition: speex_stereo.h:53
float smooth_right
Definition: speex_stereo.h:54
float reserved2
Definition: speex_stereo.h:56