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
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27  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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33 */
34 
35 #ifndef STEREO_H
36 #define STEREO_H
37 
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
SpeexStereoState::smooth_left
float smooth_left
Definition: speex_stereo.h:53
SpeexStereoState::reserved1
float reserved1
Definition: speex_stereo.h:55
speex_stereo_state_reset
void speex_stereo_state_reset(SpeexStereoState *stereo)
SpeexBits
Definition: speex_bits.h:49
SpeexStereoState::e_ratio
float e_ratio
Definition: speex_stereo.h:52
speex_types.h
Speex types.
speex_bits.h
Handles bit packing/unpacking.
SpeexStereoState
Definition: speex_stereo.h:50
speex_decode_stereo_int
void speex_decode_stereo_int(spx_int16_t *data, int frame_size, SpeexStereoState *stereo)
speex_stereo_state_destroy
void speex_stereo_state_destroy(SpeexStereoState *stereo)
SpeexStereoState::reserved2
float reserved2
Definition: speex_stereo.h:56
speex_encode_stereo
void speex_encode_stereo(float *data, int frame_size, SpeexBits *bits)
speex_decode_stereo
void speex_decode_stereo(float *data, int frame_size, SpeexStereoState *stereo)
speex_std_stereo_request_handler
int speex_std_stereo_request_handler(SpeexBits *bits, void *state, void *data)
SpeexStereoState::smooth_right
float smooth_right
Definition: speex_stereo.h:54
speex_stereo_state_init
SpeexStereoState * speex_stereo_state_init()
speex_encode_stereo_int
void speex_encode_stereo_int(spx_int16_t *data, int frame_size, SpeexBits *bits)
SpeexStereoState
struct SpeexStereoState SpeexStereoState
SpeexStereoState::balance
float balance
Definition: speex_stereo.h:51