1 /*
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11
12
13 #include <stdlib.h>
14 #include <string.h>
15 #include "g722_interface.h"
16 #include "g722_enc_dec.h"
17 #include "typedefs.h"
18
19
WebRtcG722_CreateEncoder(G722EncInst ** G722enc_inst)20 int16_t WebRtcG722_CreateEncoder(G722EncInst **G722enc_inst)
21 {
22 *G722enc_inst=(G722EncInst*)malloc(sizeof(g722_encode_state_t));
23 if (*G722enc_inst!=NULL) {
24 return(0);
25 } else {
26 return(-1);
27 }
28 }
29
WebRtcG722_EncoderInit(G722EncInst * G722enc_inst)30 int16_t WebRtcG722_EncoderInit(G722EncInst *G722enc_inst)
31 {
32 // Create and/or reset the G.722 encoder
33 // Bitrate 64 kbps and wideband mode (2)
34 G722enc_inst = (G722EncInst *) WebRtc_g722_encode_init(
35 (g722_encode_state_t*) G722enc_inst, 64000, 2);
36 if (G722enc_inst == NULL) {
37 return -1;
38 } else {
39 return 0;
40 }
41 }
42
WebRtcG722_FreeEncoder(G722EncInst * G722enc_inst)43 int16_t WebRtcG722_FreeEncoder(G722EncInst *G722enc_inst)
44 {
45 // Free encoder memory
46 return WebRtc_g722_encode_release((g722_encode_state_t*) G722enc_inst);
47 }
48
WebRtcG722_Encode(G722EncInst * G722enc_inst,int16_t * speechIn,int16_t len,int16_t * encoded)49 int16_t WebRtcG722_Encode(G722EncInst *G722enc_inst,
50 int16_t *speechIn,
51 int16_t len,
52 int16_t *encoded)
53 {
54 unsigned char *codechar = (unsigned char*) encoded;
55 // Encode the input speech vector
56 return WebRtc_g722_encode((g722_encode_state_t*) G722enc_inst,
57 codechar, speechIn, len);
58 }
59
WebRtcG722_CreateDecoder(G722DecInst ** G722dec_inst)60 int16_t WebRtcG722_CreateDecoder(G722DecInst **G722dec_inst)
61 {
62 *G722dec_inst=(G722DecInst*)malloc(sizeof(g722_decode_state_t));
63 if (*G722dec_inst!=NULL) {
64 return(0);
65 } else {
66 return(-1);
67 }
68 }
69
WebRtcG722_DecoderInit(G722DecInst * G722dec_inst)70 int16_t WebRtcG722_DecoderInit(G722DecInst *G722dec_inst)
71 {
72 // Create and/or reset the G.722 decoder
73 // Bitrate 64 kbps and wideband mode (2)
74 G722dec_inst = (G722DecInst *) WebRtc_g722_decode_init(
75 (g722_decode_state_t*) G722dec_inst, 64000, 2);
76 if (G722dec_inst == NULL) {
77 return -1;
78 } else {
79 return 0;
80 }
81 }
82
WebRtcG722_FreeDecoder(G722DecInst * G722dec_inst)83 int16_t WebRtcG722_FreeDecoder(G722DecInst *G722dec_inst)
84 {
85 // Free encoder memory
86 return WebRtc_g722_decode_release((g722_decode_state_t*) G722dec_inst);
87 }
88
WebRtcG722_Decode(G722DecInst * G722dec_inst,int16_t * encoded,int16_t len,int16_t * decoded,int16_t * speechType)89 int16_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
90 int16_t *encoded,
91 int16_t len,
92 int16_t *decoded,
93 int16_t *speechType)
94 {
95 // Decode the G.722 encoder stream
96 *speechType=G722_WEBRTC_SPEECH;
97 return WebRtc_g722_decode((g722_decode_state_t*) G722dec_inst,
98 decoded, (uint8_t*) encoded, len);
99 }
100
WebRtcG722_Version(char * versionStr,short len)101 int16_t WebRtcG722_Version(char *versionStr, short len)
102 {
103 // Get version string
104 char version[30] = "2.0.0\n";
105 if (strlen(version) < (unsigned int)len)
106 {
107 strcpy(versionStr, version);
108 return 0;
109 }
110 else
111 {
112 return -1;
113 }
114 }
115
116