| /* |
| * Copyright (c) 2011 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 "acm_g722.h" |
| #include "acm_codec_database.h" |
| #include "acm_common_defs.h" |
| #include "acm_neteq.h" |
| #include "trace.h" |
| #include "webrtc_neteq.h" |
| #include "webrtc_neteq_help_macros.h" |
| #include "g722_interface.h" |
| |
| namespace webrtc { |
| |
| #ifndef WEBRTC_CODEC_G722 |
| |
| ACMG722::ACMG722(WebRtc_Word16 /* codecID */) |
| : _ptrEncStr(NULL), |
| _ptrDecStr(NULL), |
| _encoderInstPtr(NULL), |
| _encoderInstPtrRight(NULL), |
| _decoderInstPtr(NULL) { |
| return; |
| } |
| |
| ACMG722::~ACMG722() { |
| return; |
| } |
| |
| WebRtc_Word32 ACMG722::Add10MsDataSafe(const WebRtc_UWord32 /* timestamp */, |
| const WebRtc_Word16* /* data */, |
| const WebRtc_UWord16 /* lengthSmpl */, |
| const WebRtc_UWord8 /* audioChannel */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalEncode(WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16* /* bitStreamLenByte */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMG722::DecodeSafe(WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16 /* bitStreamLenByte */, |
| WebRtc_Word16* /* audio */, |
| WebRtc_Word16* /* audioSamples */, |
| WebRtc_Word8* /* speechType */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalInitEncoder( |
| WebRtcACMCodecParams* /* codecParams */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalInitDecoder( |
| WebRtcACMCodecParams* /* codecParams */) { |
| return -1; |
| } |
| |
| WebRtc_Word32 ACMG722::CodecDef(WebRtcNetEQ_CodecDef& /* codecDef */, |
| const CodecInst& /* codecInst */) { |
| return -1; |
| } |
| |
| ACMGenericCodec* ACMG722::CreateInstance(void) { |
| return NULL; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalCreateEncoder() { |
| return -1; |
| } |
| |
| void ACMG722::DestructEncoderSafe() { |
| return; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalCreateDecoder() { |
| return -1; |
| } |
| |
| void ACMG722::DestructDecoderSafe() { |
| return; |
| } |
| |
| void ACMG722::InternalDestructEncoderInst(void* /* ptrInst */) { |
| return; |
| } |
| |
| WebRtc_Word16 ACMG722::UnregisterFromNetEqSafe( |
| ACMNetEQ* /* netEq */, |
| WebRtc_Word16 /* payloadType */) { |
| return -1; |
| } |
| |
| #else //===================== Actual Implementation ======================= |
| |
| // Encoder and decoder memory |
| struct ACMG722EncStr { |
| G722EncInst* inst; // instance for left channel in case of stereo |
| G722EncInst* instRight; // instance for right channel in case of stereo |
| }; |
| struct ACMG722DecStr { |
| G722DecInst* inst; // instance for left channel in case of stereo |
| G722DecInst* instRight; // instance for right channel in case of stereo |
| }; |
| |
| ACMG722::ACMG722(WebRtc_Word16 codecID) |
| : _encoderInstPtr(NULL), |
| _encoderInstPtrRight(NULL), |
| _decoderInstPtr(NULL) { |
| // Encoder |
| _ptrEncStr = new ACMG722EncStr; |
| if (_ptrEncStr != NULL) { |
| _ptrEncStr->inst = NULL; |
| _ptrEncStr->instRight = NULL; |
| } |
| // Decoder |
| _ptrDecStr = new ACMG722DecStr; |
| if (_ptrDecStr != NULL) { |
| _ptrDecStr->inst = NULL; |
| _ptrDecStr->instRight = NULL; // Not used |
| } |
| _codecID = codecID; |
| return; |
| } |
| |
| ACMG722::~ACMG722() { |
| // Encoder |
| if (_ptrEncStr != NULL) { |
| if (_ptrEncStr->inst != NULL) { |
| WebRtcG722_FreeEncoder(_ptrEncStr->inst); |
| _ptrEncStr->inst = NULL; |
| } |
| if (_ptrEncStr->instRight != NULL) { |
| WebRtcG722_FreeEncoder(_ptrEncStr->instRight); |
| _ptrEncStr->instRight = NULL; |
| } |
| delete _ptrEncStr; |
| _ptrEncStr = NULL; |
| } |
| // Decoder |
| if (_ptrDecStr != NULL) { |
| if (_ptrDecStr->inst != NULL) { |
| WebRtcG722_FreeDecoder(_ptrDecStr->inst); |
| _ptrDecStr->inst = NULL; |
| } |
| if (_ptrDecStr->instRight != NULL) { |
| WebRtcG722_FreeDecoder(_ptrDecStr->instRight); |
| _ptrDecStr->instRight = NULL; |
| } |
| delete _ptrDecStr; |
| _ptrDecStr = NULL; |
| } |
| return; |
| } |
| |
| WebRtc_Word32 ACMG722::Add10MsDataSafe(const WebRtc_UWord32 timestamp, |
| const WebRtc_Word16* data, |
| const WebRtc_UWord16 lengthSmpl, |
| const WebRtc_UWord8 audioChannel) { |
| return ACMGenericCodec::Add10MsDataSafe((timestamp >> 1), data, lengthSmpl, |
| audioChannel); |
| } |
| |
| WebRtc_Word16 ACMG722::InternalEncode(WebRtc_UWord8* bitStream, |
| WebRtc_Word16* bitStreamLenByte) { |
| // If stereo, split input signal in left and right channel before encoding |
| if (_noChannels == 2) { |
| WebRtc_Word16 leftChannel[960]; |
| WebRtc_Word16 rightChannel[960]; |
| WebRtc_UWord8 outLeft[480]; |
| WebRtc_UWord8 outRight[480]; |
| WebRtc_Word16 lenInBytes; |
| for (int i = 0, j = 0; i < _frameLenSmpl * 2; i += 2, j++) { |
| leftChannel[j] = _inAudio[_inAudioIxRead + i]; |
| rightChannel[j] = _inAudio[_inAudioIxRead + i + 1]; |
| } |
| lenInBytes = WebRtcG722_Encode(_encoderInstPtr, leftChannel, _frameLenSmpl, |
| (WebRtc_Word16*) outLeft); |
| lenInBytes += WebRtcG722_Encode(_encoderInstPtrRight, rightChannel, |
| _frameLenSmpl, (WebRtc_Word16*) outRight); |
| *bitStreamLenByte = lenInBytes; |
| |
| // Interleave the 4 bits per sample from left and right channel |
| for (int i = 0, j = 0; i < lenInBytes; i += 2, j++) { |
| bitStream[i] = (outRight[j] & 0xF0) + (outLeft[j] >> 4); |
| bitStream[i + 1] = ((outRight[j] & 0x0F) << 4) + (outLeft[j] & 0x0F); |
| } |
| } else { |
| *bitStreamLenByte = WebRtcG722_Encode(_encoderInstPtr, |
| &_inAudio[_inAudioIxRead], |
| _frameLenSmpl, |
| (WebRtc_Word16*) bitStream); |
| } |
| |
| // increment the read index this tell the caller how far |
| // we have gone forward in reading the audio buffer |
| _inAudioIxRead += _frameLenSmpl * _noChannels; |
| return *bitStreamLenByte; |
| } |
| |
| WebRtc_Word16 ACMG722::DecodeSafe(WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16 /* bitStreamLenByte */, |
| WebRtc_Word16* /* audio */, |
| WebRtc_Word16* /* audioSamples */, |
| WebRtc_Word8* /* speechType */) { |
| return 0; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalInitEncoder(WebRtcACMCodecParams* codecParams) { |
| if (codecParams->codecInstant.channels == 2) { |
| // Create codec struct for right channel |
| if (_ptrEncStr->instRight == NULL) { |
| WebRtcG722_CreateEncoder(&_ptrEncStr->instRight); |
| if (_ptrEncStr->instRight == NULL) { |
| return -1; |
| } |
| } |
| _encoderInstPtrRight = _ptrEncStr->instRight; |
| if (WebRtcG722_EncoderInit(_encoderInstPtrRight) < 0) { |
| return -1; |
| } |
| } |
| |
| return WebRtcG722_EncoderInit(_encoderInstPtr); |
| } |
| |
| WebRtc_Word16 ACMG722::InternalInitDecoder( |
| WebRtcACMCodecParams* /* codecParams */) { |
| return WebRtcG722_DecoderInit(_decoderInstPtr); |
| } |
| |
| WebRtc_Word32 ACMG722::CodecDef(WebRtcNetEQ_CodecDef& codecDef, |
| const CodecInst& codecInst) { |
| if (!_decoderInitialized) { |
| // TODO: log error |
| return -1; |
| } |
| // Fill up the structure by calling |
| // "SET_CODEC_PAR" & "SET_G722_FUNCTION." |
| // Then call NetEQ to add the codec to it's |
| // database. |
| SET_CODEC_PAR((codecDef), kDecoderG722, codecInst.pltype, _decoderInstPtr, |
| 16000); |
| SET_G722_FUNCTIONS((codecDef)); |
| return 0; |
| } |
| |
| ACMGenericCodec* ACMG722::CreateInstance(void) { |
| return NULL; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalCreateEncoder() { |
| if (_ptrEncStr == NULL) { |
| // this structure must be created at the costructor |
| // if it is still NULL then there is a probelm and |
| // we dont continue |
| return -1; |
| } |
| WebRtcG722_CreateEncoder(&_ptrEncStr->inst); |
| if (_ptrEncStr->inst == NULL) { |
| return -1; |
| } |
| _encoderInstPtr = _ptrEncStr->inst; |
| return 0; |
| } |
| |
| void ACMG722::DestructEncoderSafe() { |
| if (_ptrEncStr != NULL) { |
| if (_ptrEncStr->inst != NULL) { |
| WebRtcG722_FreeEncoder(_ptrEncStr->inst); |
| _ptrEncStr->inst = NULL; |
| } |
| } |
| _encoderExist = false; |
| _encoderInitialized = false; |
| } |
| |
| WebRtc_Word16 ACMG722::InternalCreateDecoder() { |
| if (_ptrDecStr == NULL) { |
| // this structure must be created at the costructor |
| // if it is still NULL then there is a probelm and |
| // we dont continue |
| return -1; |
| } |
| |
| WebRtcG722_CreateDecoder(&_ptrDecStr->inst); |
| if (_ptrDecStr->inst == NULL) { |
| return -1; |
| } |
| _decoderInstPtr = _ptrDecStr->inst; |
| return 0; |
| } |
| |
| void ACMG722::DestructDecoderSafe() { |
| _decoderExist = false; |
| _decoderInitialized = false; |
| if (_ptrDecStr != NULL) { |
| if (_ptrDecStr->inst != NULL) { |
| WebRtcG722_FreeDecoder(_ptrDecStr->inst); |
| _ptrDecStr->inst = NULL; |
| } |
| } |
| } |
| |
| void ACMG722::InternalDestructEncoderInst(void* ptrInst) { |
| if (ptrInst != NULL) { |
| WebRtcG722_FreeEncoder(static_cast<G722EncInst*>(ptrInst)); |
| } |
| return; |
| } |
| |
| WebRtc_Word16 ACMG722::UnregisterFromNetEqSafe(ACMNetEQ* netEq, |
| WebRtc_Word16 payloadType) { |
| if (payloadType != _decoderParams.codecInstant.pltype) { |
| WEBRTC_TRACE(webrtc::kTraceError, |
| webrtc::kTraceAudioCoding, |
| _uniqueID, |
| "Cannot unregister codec %s given payload-type %d does not " |
| "match the stored payload type", |
| _decoderParams.codecInstant.plname, payloadType, |
| _decoderParams.codecInstant.pltype); |
| return -1; |
| } |
| return netEq->RemoveCodec(kDecoderG722); |
| } |
| |
| #endif |
| |
| } // namespace webrtc |
