1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/audio_coding/main/acm2/acm_cng.h"
#include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h"
#include "webrtc/modules/audio_coding/main/acm2/acm_codec_database.h"
#include "webrtc/modules/audio_coding/main/acm2/acm_common_defs.h"
#include "webrtc/system_wrappers/interface/trace.h"
namespace webrtc {
namespace acm2 {
ACMCNG::ACMCNG(int16_t codec_id) {
encoder_inst_ptr_ = NULL;
codec_id_ = codec_id;
samp_freq_hz_ = ACMCodecDB::CodecFreq(codec_id_);
return;
}
ACMCNG::~ACMCNG() {
if (encoder_inst_ptr_ != NULL) {
WebRtcCng_FreeEnc(encoder_inst_ptr_);
encoder_inst_ptr_ = NULL;
}
return;
}
// CNG is not like a regular encoder, this function
// should not be called normally
// instead the following function is called from inside
// ACMGenericCodec::ProcessFrameVADDTX
int16_t ACMCNG::InternalEncode(uint8_t* /* bitstream */,
int16_t* /* bitstream_len_byte */) {
return -1;
}
// CNG is not like a regular encoder,
// this function should not be called normally
// instead the following function is called from inside
// ACMGenericCodec::ProcessFrameVADDTX
int16_t ACMCNG::InternalInitEncoder(WebRtcACMCodecParams* /* codec_params */) {
return -1;
}
ACMGenericCodec* ACMCNG::CreateInstance(void) { return NULL; }
int16_t ACMCNG::InternalCreateEncoder() {
if (WebRtcCng_CreateEnc(&encoder_inst_ptr_) < 0) {
encoder_inst_ptr_ = NULL;
return -1;
} else {
return 0;
}
}
void ACMCNG::DestructEncoderSafe() {
if (encoder_inst_ptr_ != NULL) {
WebRtcCng_FreeEnc(encoder_inst_ptr_);
encoder_inst_ptr_ = NULL;
}
encoder_exist_ = false;
encoder_initialized_ = false;
}
} // namespace acm2
} // namespace webrtc
|
