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| 1 /* | 1 /* |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
| 11 #include "webrtc/modules/audio_coding/neteq/audio_decoder_impl.h" | 11 #include "webrtc/modules/audio_coding/neteq/audio_decoder_impl.h" |
| 12 | 12 |
| 13 #include <assert.h> | 13 #include <assert.h> |
| 14 | 14 |
| 15 #include "webrtc/base/checks.h" | 15 #include "webrtc/base/checks.h" |
| 16 #include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h" | 16 #include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h" |
| 17 #include "webrtc/modules/audio_coding/codecs/g711/include/g711_interface.h" | 17 #include "webrtc/modules/audio_coding/codecs/g711/include/audio_decoder_pcm.h" |
| 18 #ifdef WEBRTC_CODEC_G722 | 18 #ifdef WEBRTC_CODEC_G722 |
| 19 #include "webrtc/modules/audio_coding/codecs/g722/include/audio_decoder_g722.h" | 19 #include "webrtc/modules/audio_coding/codecs/g722/include/audio_decoder_g722.h" |
| 20 #endif | 20 #endif |
| 21 #ifdef WEBRTC_CODEC_ILBC | 21 #ifdef WEBRTC_CODEC_ILBC |
| 22 #include "webrtc/modules/audio_coding/codecs/ilbc/interface/audio_decoder_ilbc.h
" | 22 #include "webrtc/modules/audio_coding/codecs/ilbc/interface/audio_decoder_ilbc.h
" |
| 23 #endif | 23 #endif |
| 24 #ifdef WEBRTC_CODEC_ISACFX | 24 #ifdef WEBRTC_CODEC_ISACFX |
| 25 #include "webrtc/modules/audio_coding/codecs/isac/fix/interface/audio_encoder_is
acfix.h" | 25 #include "webrtc/modules/audio_coding/codecs/isac/fix/interface/audio_encoder_is
acfix.h" |
| 26 #endif | 26 #endif |
| 27 #ifdef WEBRTC_CODEC_ISAC | 27 #ifdef WEBRTC_CODEC_ISAC |
| 28 #include "webrtc/modules/audio_coding/codecs/isac/main/interface/audio_encoder_i
sac.h" | 28 #include "webrtc/modules/audio_coding/codecs/isac/main/interface/audio_encoder_i
sac.h" |
| 29 #endif | 29 #endif |
| 30 #ifdef WEBRTC_CODEC_OPUS | 30 #ifdef WEBRTC_CODEC_OPUS |
| 31 #include "webrtc/modules/audio_coding/codecs/opus/interface/audio_decoder_opus.h
" | 31 #include "webrtc/modules/audio_coding/codecs/opus/interface/audio_decoder_opus.h
" |
| 32 #endif | 32 #endif |
| 33 #include "webrtc/modules/audio_coding/codecs/pcm16b/include/audio_decoder_pcm16b
.h" | 33 #include "webrtc/modules/audio_coding/codecs/pcm16b/include/audio_decoder_pcm16b
.h" |
| 34 | 34 |
| 35 namespace webrtc { | 35 namespace webrtc { |
| 36 | 36 |
| 37 // PCMu | |
| 38 | |
| 39 void AudioDecoderPcmU::Reset() { | |
| 40 } | |
| 41 size_t AudioDecoderPcmU::Channels() const { | |
| 42 return 1; | |
| 43 } | |
| 44 | |
| 45 int AudioDecoderPcmU::DecodeInternal(const uint8_t* encoded, | |
| 46 size_t encoded_len, | |
| 47 int sample_rate_hz, | |
| 48 int16_t* decoded, | |
| 49 SpeechType* speech_type) { | |
| 50 RTC_DCHECK_EQ(sample_rate_hz, 8000); | |
| 51 int16_t temp_type = 1; // Default is speech. | |
| 52 size_t ret = WebRtcG711_DecodeU(encoded, encoded_len, decoded, &temp_type); | |
| 53 *speech_type = ConvertSpeechType(temp_type); | |
| 54 return static_cast<int>(ret); | |
| 55 } | |
| 56 | |
| 57 int AudioDecoderPcmU::PacketDuration(const uint8_t* encoded, | |
| 58 size_t encoded_len) const { | |
| 59 // One encoded byte per sample per channel. | |
| 60 return static_cast<int>(encoded_len / Channels()); | |
| 61 } | |
| 62 | |
| 63 size_t AudioDecoderPcmUMultiCh::Channels() const { | |
| 64 return channels_; | |
| 65 } | |
| 66 | |
| 67 // PCMa | |
| 68 | |
| 69 void AudioDecoderPcmA::Reset() { | |
| 70 } | |
| 71 size_t AudioDecoderPcmA::Channels() const { | |
| 72 return 1; | |
| 73 } | |
| 74 | |
| 75 int AudioDecoderPcmA::DecodeInternal(const uint8_t* encoded, | |
| 76 size_t encoded_len, | |
| 77 int sample_rate_hz, | |
| 78 int16_t* decoded, | |
| 79 SpeechType* speech_type) { | |
| 80 RTC_DCHECK_EQ(sample_rate_hz, 8000); | |
| 81 int16_t temp_type = 1; // Default is speech. | |
| 82 size_t ret = WebRtcG711_DecodeA(encoded, encoded_len, decoded, &temp_type); | |
| 83 *speech_type = ConvertSpeechType(temp_type); | |
| 84 return static_cast<int>(ret); | |
| 85 } | |
| 86 | |
| 87 int AudioDecoderPcmA::PacketDuration(const uint8_t* encoded, | |
| 88 size_t encoded_len) const { | |
| 89 // One encoded byte per sample per channel. | |
| 90 return static_cast<int>(encoded_len / Channels()); | |
| 91 } | |
| 92 | |
| 93 size_t AudioDecoderPcmAMultiCh::Channels() const { | |
| 94 return channels_; | |
| 95 } | |
| 96 | |
| 97 AudioDecoderCng::AudioDecoderCng() { | 37 AudioDecoderCng::AudioDecoderCng() { |
| 98 RTC_CHECK_EQ(0, WebRtcCng_CreateDec(&dec_state_)); | 38 RTC_CHECK_EQ(0, WebRtcCng_CreateDec(&dec_state_)); |
| 99 WebRtcCng_InitDec(dec_state_); | 39 WebRtcCng_InitDec(dec_state_); |
| 100 } | 40 } |
| 101 | 41 |
| 102 AudioDecoderCng::~AudioDecoderCng() { | 42 AudioDecoderCng::~AudioDecoderCng() { |
| 103 WebRtcCng_FreeDec(dec_state_); | 43 WebRtcCng_FreeDec(dec_state_); |
| 104 } | 44 } |
| 105 | 45 |
| 106 void AudioDecoderCng::Reset() { | 46 void AudioDecoderCng::Reset() { |
| (...skipping 186 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 293 case kDecoderRED: | 233 case kDecoderRED: |
| 294 case kDecoderAVT: | 234 case kDecoderAVT: |
| 295 case kDecoderArbitrary: | 235 case kDecoderArbitrary: |
| 296 default: { | 236 default: { |
| 297 return NULL; | 237 return NULL; |
| 298 } | 238 } |
| 299 } | 239 } |
| 300 } | 240 } |
| 301 | 241 |
| 302 } // namespace webrtc | 242 } // namespace webrtc |
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