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 #include <stdlib.h>
12 #include <string.h>
13
14 #include "modules/audio_coding/codecs/g722/g722_interface.h"
15 #include "modules/third_party/g722/g722_enc_dec.h"
16
WebRtcG722_CreateEncoder(G722EncInst ** G722enc_inst)17 int16_t WebRtcG722_CreateEncoder(G722EncInst **G722enc_inst)
18 {
19 *G722enc_inst=(G722EncInst*)malloc(sizeof(G722EncoderState));
20 if (*G722enc_inst!=NULL) {
21 return(0);
22 } else {
23 return(-1);
24 }
25 }
26
WebRtcG722_EncoderInit(G722EncInst * G722enc_inst)27 int16_t WebRtcG722_EncoderInit(G722EncInst *G722enc_inst)
28 {
29 // Create and/or reset the G.722 encoder
30 // Bitrate 64 kbps and wideband mode (2)
31 G722enc_inst = (G722EncInst *) WebRtc_g722_encode_init(
32 (G722EncoderState*) G722enc_inst, 64000, 2);
33 if (G722enc_inst == NULL) {
34 return -1;
35 } else {
36 return 0;
37 }
38 }
39
WebRtcG722_FreeEncoder(G722EncInst * G722enc_inst)40 int WebRtcG722_FreeEncoder(G722EncInst *G722enc_inst)
41 {
42 // Free encoder memory
43 return WebRtc_g722_encode_release((G722EncoderState*) G722enc_inst);
44 }
45
WebRtcG722_Encode(G722EncInst * G722enc_inst,const int16_t * speechIn,size_t len,uint8_t * encoded)46 size_t WebRtcG722_Encode(G722EncInst *G722enc_inst,
47 const int16_t* speechIn,
48 size_t len,
49 uint8_t* encoded)
50 {
51 unsigned char *codechar = (unsigned char*) encoded;
52 // Encode the input speech vector
53 return WebRtc_g722_encode((G722EncoderState*) G722enc_inst, codechar,
54 speechIn, len);
55 }
56
WebRtcG722_CreateDecoder(G722DecInst ** G722dec_inst)57 int16_t WebRtcG722_CreateDecoder(G722DecInst **G722dec_inst)
58 {
59 *G722dec_inst=(G722DecInst*)malloc(sizeof(G722DecoderState));
60 if (*G722dec_inst!=NULL) {
61 return(0);
62 } else {
63 return(-1);
64 }
65 }
66
WebRtcG722_DecoderInit(G722DecInst * inst)67 void WebRtcG722_DecoderInit(G722DecInst* inst) {
68 // Create and/or reset the G.722 decoder
69 // Bitrate 64 kbps and wideband mode (2)
70 WebRtc_g722_decode_init((G722DecoderState*)inst, 64000, 2);
71 }
72
WebRtcG722_FreeDecoder(G722DecInst * G722dec_inst)73 int WebRtcG722_FreeDecoder(G722DecInst *G722dec_inst)
74 {
75 // Free encoder memory
76 return WebRtc_g722_decode_release((G722DecoderState*) G722dec_inst);
77 }
78
WebRtcG722_Decode(G722DecInst * G722dec_inst,const uint8_t * encoded,size_t len,int16_t * decoded,int16_t * speechType)79 size_t WebRtcG722_Decode(G722DecInst *G722dec_inst,
80 const uint8_t *encoded,
81 size_t len,
82 int16_t *decoded,
83 int16_t *speechType)
84 {
85 // Decode the G.722 encoder stream
86 *speechType=G722_WEBRTC_SPEECH;
87 return WebRtc_g722_decode((G722DecoderState*) G722dec_inst, decoded,
88 encoded, len);
89 }
90
WebRtcG722_Version(char * versionStr,short len)91 int16_t WebRtcG722_Version(char *versionStr, short len)
92 {
93 // Get version string
94 char version[30] = "2.0.0\n";
95 if (strlen(version) < (unsigned int)len)
96 {
97 strcpy(versionStr, version);
98 return 0;
99 }
100 else
101 {
102 return -1;
103 }
104 }
105