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/*
* 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;
}
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 48000;
}
#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(16000);
case kDecoderISACswb:
case kDecoderISACfb:
return new AudioDecoderIsac(32000);
#endif
#ifdef WEBRTC_CODEC_PCM16
case kDecoderPCM16B:
case kDecoderPCM16Bwb:
case kDecoderPCM16Bswb32kHz:
case kDecoderPCM16Bswb48kHz:
return new AudioDecoderPcm16B;
case kDecoderPCM16B_2ch:
case kDecoderPCM16Bwb_2ch:
case kDecoderPCM16Bswb32kHz_2ch:
case kDecoderPCM16Bswb48kHz_2ch:
return new AudioDecoderPcm16BMultiCh(2);
case kDecoderPCM16B_5ch:
return new AudioDecoderPcm16BMultiCh(5);
#endif
#ifdef WEBRTC_CODEC_G722
case kDecoderG722:
return new AudioDecoderG722;
case kDecoderG722_2ch:
return new AudioDecoderG722Stereo;
#endif
#ifdef WEBRTC_CODEC_CELT
case kDecoderCELT_32:
return new AudioDecoderCelt(1);
case kDecoderCELT_32_2ch:
return new AudioDecoderCelt(2);
#endif
#ifdef WEBRTC_CODEC_OPUS
case kDecoderOpus:
return new AudioDecoderOpus(1);
case kDecoderOpus_2ch:
return new AudioDecoderOpus(2);
#endif
case kDecoderCNGnb:
case kDecoderCNGwb:
case kDecoderCNGswb32kHz:
case kDecoderCNGswb48kHz:
return new AudioDecoderCng;
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
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