1 /*
2 * Copyright (c) 2015 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 "webrtc/modules/audio_coding/codecs/ilbc/audio_decoder_ilbc.h"
12
13 #include "webrtc/base/checks.h"
14 #include "webrtc/modules/audio_coding/codecs/ilbc/ilbc.h"
15
16 namespace webrtc {
17
AudioDecoderIlbc()18 AudioDecoderIlbc::AudioDecoderIlbc() {
19 WebRtcIlbcfix_DecoderCreate(&dec_state_);
20 WebRtcIlbcfix_Decoderinit30Ms(dec_state_);
21 }
22
~AudioDecoderIlbc()23 AudioDecoderIlbc::~AudioDecoderIlbc() {
24 WebRtcIlbcfix_DecoderFree(dec_state_);
25 }
26
HasDecodePlc() const27 bool AudioDecoderIlbc::HasDecodePlc() const {
28 return true;
29 }
30
DecodeInternal(const uint8_t * encoded,size_t encoded_len,int sample_rate_hz,int16_t * decoded,SpeechType * speech_type)31 int AudioDecoderIlbc::DecodeInternal(const uint8_t* encoded,
32 size_t encoded_len,
33 int sample_rate_hz,
34 int16_t* decoded,
35 SpeechType* speech_type) {
36 RTC_DCHECK_EQ(sample_rate_hz, 8000);
37 int16_t temp_type = 1; // Default is speech.
38 int ret = WebRtcIlbcfix_Decode(dec_state_, encoded, encoded_len, decoded,
39 &temp_type);
40 *speech_type = ConvertSpeechType(temp_type);
41 return ret;
42 }
43
DecodePlc(size_t num_frames,int16_t * decoded)44 size_t AudioDecoderIlbc::DecodePlc(size_t num_frames, int16_t* decoded) {
45 return WebRtcIlbcfix_NetEqPlc(dec_state_, decoded, num_frames);
46 }
47
Reset()48 void AudioDecoderIlbc::Reset() {
49 WebRtcIlbcfix_Decoderinit30Ms(dec_state_);
50 }
51
Channels() const52 size_t AudioDecoderIlbc::Channels() const {
53 return 1;
54 }
55
56 } // namespace webrtc
57