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| 1 /* | |
| 2 * Copyright (c) 2012 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 "voice_engine/coder.h" | |
| 12 | |
| 13 #include "api/audio_codecs/builtin_audio_decoder_factory.h" | |
| 14 #include "common_types.h" // NOLINT(build/include) | |
| 15 #include "modules/audio_coding/codecs/audio_format_conversion.h" | |
| 16 #include "modules/include/module_common_types.h" | |
| 17 | |
| 18 namespace webrtc { | |
| 19 namespace { | |
| 20 AudioCodingModule::Config GetAcmConfig(uint32_t id) { | |
| 21 AudioCodingModule::Config config; | |
| 22 // This class does not handle muted output. | |
| 23 config.neteq_config.enable_muted_state = false; | |
| 24 config.id = id; | |
| 25 config.decoder_factory = CreateBuiltinAudioDecoderFactory(); | |
| 26 return config; | |
| 27 } | |
| 28 } // namespace | |
| 29 | |
| 30 AudioCoder::AudioCoder(uint32_t instance_id) | |
| 31 : acm_(AudioCodingModule::Create(GetAcmConfig(instance_id))), | |
| 32 receive_codec_(), | |
| 33 encode_timestamp_(0), | |
| 34 encoded_data_(nullptr), | |
| 35 encoded_length_in_bytes_(0), | |
| 36 decode_timestamp_(0) { | |
| 37 acm_->InitializeReceiver(); | |
| 38 acm_->RegisterTransportCallback(this); | |
| 39 } | |
| 40 | |
| 41 AudioCoder::~AudioCoder() {} | |
| 42 | |
| 43 int32_t AudioCoder::SetEncodeCodec(const CodecInst& codec_inst) { | |
| 44 const bool success = codec_manager_.RegisterEncoder(codec_inst) && | |
| 45 codec_manager_.MakeEncoder(&rent_a_codec_, acm_.get()); | |
| 46 return success ? 0 : -1; | |
| 47 } | |
| 48 | |
| 49 int32_t AudioCoder::SetDecodeCodec(const CodecInst& codec_inst) { | |
| 50 if (!acm_->RegisterReceiveCodec(codec_inst.pltype, | |
| 51 CodecInstToSdp(codec_inst))) { | |
| 52 return -1; | |
| 53 } | |
| 54 memcpy(&receive_codec_, &codec_inst, sizeof(CodecInst)); | |
| 55 return 0; | |
| 56 } | |
| 57 | |
| 58 int32_t AudioCoder::Decode(AudioFrame* decoded_audio, | |
| 59 uint32_t samp_freq_hz, | |
| 60 const int8_t* incoming_payload, | |
| 61 size_t payload_length) { | |
| 62 if (payload_length > 0) { | |
| 63 const uint8_t payload_type = receive_codec_.pltype; | |
| 64 decode_timestamp_ += receive_codec_.pacsize; | |
| 65 if (acm_->IncomingPayload((const uint8_t*)incoming_payload, payload_length, | |
| 66 payload_type, decode_timestamp_) == -1) { | |
| 67 return -1; | |
| 68 } | |
| 69 } | |
| 70 bool muted; | |
| 71 int32_t ret = | |
| 72 acm_->PlayoutData10Ms((uint16_t)samp_freq_hz, decoded_audio, &muted); | |
| 73 RTC_DCHECK(!muted); | |
| 74 return ret; | |
| 75 } | |
| 76 | |
| 77 int32_t AudioCoder::PlayoutData(AudioFrame* decoded_audio, | |
| 78 uint16_t samp_freq_hz) { | |
| 79 bool muted; | |
| 80 int32_t ret = acm_->PlayoutData10Ms(samp_freq_hz, decoded_audio, &muted); | |
| 81 RTC_DCHECK(!muted); | |
| 82 return ret; | |
| 83 } | |
| 84 | |
| 85 int32_t AudioCoder::Encode(const AudioFrame& audio, | |
| 86 int8_t* encoded_data, | |
| 87 size_t* encoded_length_in_bytes) { | |
| 88 // Fake a timestamp in case audio doesn't contain a correct timestamp. | |
| 89 // Make a local copy of the audio frame since audio is const | |
| 90 AudioFrame audio_frame; | |
| 91 audio_frame.CopyFrom(audio); | |
| 92 audio_frame.timestamp_ = encode_timestamp_; | |
| 93 encode_timestamp_ += static_cast<uint32_t>(audio_frame.samples_per_channel_); | |
| 94 | |
| 95 // For any codec with a frame size that is longer than 10 ms the encoded | |
| 96 // length in bytes should be zero until a a full frame has been encoded. | |
| 97 encoded_length_in_bytes_ = 0; | |
| 98 encoded_data_ = encoded_data; | |
| 99 if (acm_->Add10MsData((AudioFrame&)audio_frame) == -1) { | |
| 100 return -1; | |
| 101 } | |
| 102 | |
| 103 *encoded_length_in_bytes = encoded_length_in_bytes_; | |
| 104 return 0; | |
| 105 } | |
| 106 | |
| 107 int32_t AudioCoder::SendData(FrameType /* frame_type */, | |
| 108 uint8_t /* payload_type */, | |
| 109 uint32_t /* time_stamp */, | |
| 110 const uint8_t* payload_data, | |
| 111 size_t payload_size, | |
| 112 const RTPFragmentationHeader* /* fragmentation*/) { | |
| 113 memcpy(encoded_data_, payload_data, sizeof(uint8_t) * payload_size); | |
| 114 encoded_length_in_bytes_ = payload_size; | |
| 115 return 0; | |
| 116 } | |
| 117 | |
| 118 } // namespace webrtc | |
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Chromium Code Reviews
Issue 3013033002:
Remove VoEFile (Closed)
