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Diffstat (limited to 'chromium/third_party/webrtc/modules/audio_coding/neteq/audio_decoder.cc')
| -rw-r--r-- | chromium/third_party/webrtc/modules/audio_coding/neteq/audio_decoder.cc | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/chromium/third_party/webrtc/modules/audio_coding/neteq/audio_decoder.cc b/chromium/third_party/webrtc/modules/audio_coding/neteq/audio_decoder.cc new file mode 100644 index 00000000000..f539bb2e1ed --- /dev/null +++ b/chromium/third_party/webrtc/modules/audio_coding/neteq/audio_decoder.cc @@ -0,0 +1,264 @@ +/* + * 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/neteq/interface/audio_decoder.h" + +#include <assert.h> + +#include "webrtc/modules/audio_coding/neteq/audio_decoder_impl.h" + +namespace webrtc { + +int AudioDecoder::DecodeRedundant(const uint8_t* encoded, + size_t encoded_len, + int16_t* decoded, + SpeechType* speech_type) { + return Decode(encoded, encoded_len, decoded, speech_type); +} + +bool AudioDecoder::HasDecodePlc() const { return false; } + +int AudioDecoder::DecodePlc(int num_frames, int16_t* decoded) { return -1; } + +int AudioDecoder::IncomingPacket(const uint8_t* payload, + size_t payload_len, + uint16_t rtp_sequence_number, + uint32_t rtp_timestamp, + uint32_t arrival_timestamp) { + return 0; +} + +int AudioDecoder::ErrorCode() { return 0; } + +int AudioDecoder::PacketDuration(const uint8_t* encoded, size_t encoded_len) { + return kNotImplemented; +} + +int AudioDecoder::PacketDurationRedundant(const uint8_t* encoded, + size_t encoded_len) const { + return kNotImplemented; +} + +bool AudioDecoder::PacketHasFec(const uint8_t* encoded, + size_t encoded_len) const { + return false; +} + +NetEqDecoder AudioDecoder::codec_type() const { return codec_type_; } + +bool AudioDecoder::CodecSupported(NetEqDecoder codec_type) { + switch (codec_type) { + case kDecoderPCMu: + case kDecoderPCMa: + case kDecoderPCMu_2ch: + case kDecoderPCMa_2ch: +#ifdef WEBRTC_CODEC_ILBC + case kDecoderILBC: +#endif +#if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC) + case kDecoderISAC: +#endif +#ifdef WEBRTC_CODEC_ISAC + case kDecoderISACswb: + case kDecoderISACfb: +#endif +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16B: + case kDecoderPCM16Bwb: + case kDecoderPCM16Bswb32kHz: + case kDecoderPCM16Bswb48kHz: + case kDecoderPCM16B_2ch: + case kDecoderPCM16Bwb_2ch: + case kDecoderPCM16Bswb32kHz_2ch: + case kDecoderPCM16Bswb48kHz_2ch: + case kDecoderPCM16B_5ch: +#endif +#ifdef WEBRTC_CODEC_G722 + case kDecoderG722: + case kDecoderG722_2ch: +#endif +#ifdef WEBRTC_CODEC_CELT + case kDecoderCELT_32: + case kDecoderCELT_32_2ch: +#endif +#ifdef WEBRTC_CODEC_OPUS + case kDecoderOpus: + case kDecoderOpus_2ch: +#endif + case kDecoderRED: + case kDecoderAVT: + case kDecoderCNGnb: + case kDecoderCNGwb: + case kDecoderCNGswb32kHz: + case kDecoderCNGswb48kHz: + case kDecoderArbitrary: { + return true; + } + default: { + return false; + } + } +} + +int AudioDecoder::CodecSampleRateHz(NetEqDecoder codec_type) { + switch (codec_type) { + case kDecoderPCMu: + case kDecoderPCMa: + case kDecoderPCMu_2ch: + case kDecoderPCMa_2ch: +#ifdef WEBRTC_CODEC_ILBC + case kDecoderILBC: +#endif +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16B: + case kDecoderPCM16B_2ch: + case kDecoderPCM16B_5ch: +#endif + case kDecoderCNGnb: { + return 8000; + } +#if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC) + case kDecoderISAC: +#endif +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16Bwb: + case kDecoderPCM16Bwb_2ch: +#endif +#ifdef WEBRTC_CODEC_G722 + case kDecoderG722: + case kDecoderG722_2ch: +#endif + case kDecoderCNGwb: { + return 16000; + } +#ifdef WEBRTC_CODEC_ISAC + case kDecoderISACswb: + case kDecoderISACfb: +#endif +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16Bswb32kHz: + case kDecoderPCM16Bswb32kHz_2ch: +#endif +#ifdef WEBRTC_CODEC_CELT + case kDecoderCELT_32: + case kDecoderCELT_32_2ch: +#endif + case kDecoderCNGswb32kHz: { + return 32000; + } +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16Bswb48kHz: + case kDecoderPCM16Bswb48kHz_2ch: { + return 48000; + } +#endif +#ifdef WEBRTC_CODEC_OPUS + case kDecoderOpus: + case kDecoderOpus_2ch: { + return 32000; + } +#endif + case kDecoderCNGswb48kHz: { + // TODO(tlegrand): Remove limitation once ACM has full 48 kHz support. + return 32000; + } + default: { + return -1; // Undefined sample rate. + } + } +} + +AudioDecoder* AudioDecoder::CreateAudioDecoder(NetEqDecoder codec_type) { + if (!CodecSupported(codec_type)) { + return NULL; + } + switch (codec_type) { + case kDecoderPCMu: + return new AudioDecoderPcmU; + case kDecoderPCMa: + return new AudioDecoderPcmA; + case kDecoderPCMu_2ch: + return new AudioDecoderPcmUMultiCh(2); + case kDecoderPCMa_2ch: + return new AudioDecoderPcmAMultiCh(2); +#ifdef WEBRTC_CODEC_ILBC + case kDecoderILBC: + return new AudioDecoderIlbc; +#endif +#if defined(WEBRTC_CODEC_ISACFX) + case kDecoderISAC: + return new AudioDecoderIsacFix; +#elif defined(WEBRTC_CODEC_ISAC) + case kDecoderISAC: + return new AudioDecoderIsac; +#endif +#ifdef WEBRTC_CODEC_ISAC + case kDecoderISACswb: + return new AudioDecoderIsacSwb; + case kDecoderISACfb: + return new AudioDecoderIsacFb; +#endif +#ifdef WEBRTC_CODEC_PCM16 + case kDecoderPCM16B: + case kDecoderPCM16Bwb: + case kDecoderPCM16Bswb32kHz: + case kDecoderPCM16Bswb48kHz: + return new AudioDecoderPcm16B(codec_type); + case kDecoderPCM16B_2ch: + case kDecoderPCM16Bwb_2ch: + case kDecoderPCM16Bswb32kHz_2ch: + case kDecoderPCM16Bswb48kHz_2ch: + case kDecoderPCM16B_5ch: + return new AudioDecoderPcm16BMultiCh(codec_type); +#endif +#ifdef WEBRTC_CODEC_G722 + case kDecoderG722: + return new AudioDecoderG722; + case kDecoderG722_2ch: + return new AudioDecoderG722Stereo; +#endif +#ifdef WEBRTC_CODEC_CELT + case kDecoderCELT_32: + case kDecoderCELT_32_2ch: + return new AudioDecoderCelt(codec_type); +#endif +#ifdef WEBRTC_CODEC_OPUS + case kDecoderOpus: + case kDecoderOpus_2ch: + return new AudioDecoderOpus(codec_type); +#endif + case kDecoderCNGnb: + case kDecoderCNGwb: + case kDecoderCNGswb32kHz: + case kDecoderCNGswb48kHz: + return new AudioDecoderCng(codec_type); + case kDecoderRED: + case kDecoderAVT: + case kDecoderArbitrary: + default: { + return NULL; + } + } +} + +AudioDecoder::SpeechType AudioDecoder::ConvertSpeechType(int16_t type) { + switch (type) { + case 0: // TODO(hlundin): Both iSAC and Opus return 0 for speech. + case 1: + return kSpeech; + case 2: + return kComfortNoise; + default: + assert(false); + return kSpeech; + } +} + +} // namespace webrtc |