| /* |
| * 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_cng.h" |
| #include "acm_codec_database.h" |
| #include "acm_common_defs.h" |
| #include "acm_neteq.h" |
| #include "trace.h" |
| #include "webrtc_cng.h" |
| #include "webrtc_neteq.h" |
| #include "webrtc_neteq_help_macros.h" |
| |
| namespace webrtc { |
| |
| ACMCNG::ACMCNG(WebRtc_Word16 codecID) { |
| _encoderInstPtr = NULL; |
| _decoderInstPtr = NULL; |
| _codecID = codecID; |
| _sampFreqHz = ACMCodecDB::CodecFreq(_codecID); |
| return; |
| } |
| |
| ACMCNG::~ACMCNG() { |
| if (_encoderInstPtr != NULL) { |
| WebRtcCng_FreeEnc(_encoderInstPtr); |
| _encoderInstPtr = NULL; |
| } |
| if (_decoderInstPtr != NULL) { |
| WebRtcCng_FreeDec(_decoderInstPtr); |
| _decoderInstPtr = NULL; |
| } |
| return; |
| } |
| |
| // CNG is not like a regular encoder, this function |
| // should not be called normally |
| // instead the following function is called from inside |
| // ACMGenericCodec::ProcessFrameVADDTX |
| WebRtc_Word16 ACMCNG::InternalEncode(WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16* /* bitStreamLenByte */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMCNG::DecodeSafe(WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16 /* bitStreamLenByte */, |
| WebRtc_Word16* /* audio */, |
| WebRtc_Word16* /* audioSamples */, |
| WebRtc_Word8* /* speechType */) { |
| return 0; |
| } |
| |
| // CNG is not like a regular encoder, |
| // this function should not be called normally |
| // instead the following function is called from inside |
| // ACMGenericCodec::ProcessFrameVADDTX |
| WebRtc_Word16 ACMCNG::InternalInitEncoder( |
| WebRtcACMCodecParams* /* codecParams */) { |
| return -1; |
| } |
| |
| WebRtc_Word16 ACMCNG::InternalInitDecoder( |
| WebRtcACMCodecParams* /* codecParams */) { |
| return WebRtcCng_InitDec(_decoderInstPtr); |
| } |
| |
| WebRtc_Word32 ACMCNG::CodecDef(WebRtcNetEQ_CodecDef& codecDef, |
| const CodecInst& codecInst) { |
| if (!_decoderInitialized) { |
| // TODO (tlegrand): log error |
| return -1; |
| } |
| // Fill up the structure by calling |
| // "SET_CODEC_PAR" & "SET_CNG_FUNCTION." |
| // Then return the structure back to NetEQ to add the codec to it's |
| // database. |
| |
| if (_sampFreqHz == 8000 || _sampFreqHz == 16000 || _sampFreqHz == 32000) { |
| SET_CODEC_PAR((codecDef), kDecoderCNG, codecInst.pltype, |
| _decoderInstPtr, _sampFreqHz); |
| SET_CNG_FUNCTIONS((codecDef)); |
| return 0; |
| } else { |
| return -1; |
| } |
| } |
| |
| ACMGenericCodec* ACMCNG::CreateInstance(void) { |
| return NULL; |
| } |
| |
| WebRtc_Word16 ACMCNG::InternalCreateEncoder() { |
| if (WebRtcCng_CreateEnc(&_encoderInstPtr) < 0) { |
| _encoderInstPtr = NULL; |
| return -1; |
| } else { |
| return 0; |
| } |
| } |
| |
| void ACMCNG::DestructEncoderSafe() { |
| if (_encoderInstPtr != NULL) { |
| WebRtcCng_FreeEnc(_encoderInstPtr); |
| _encoderInstPtr = NULL; |
| } |
| _encoderExist = false; |
| _encoderInitialized = false; |
| } |
| |
| WebRtc_Word16 ACMCNG::InternalCreateDecoder() { |
| if (WebRtcCng_CreateDec(&_decoderInstPtr) < 0) { |
| _decoderInstPtr = NULL; |
| return -1; |
| } else { |
| return 0; |
| } |
| } |
| |
| void ACMCNG::DestructDecoderSafe() { |
| if (_decoderInstPtr != NULL) { |
| WebRtcCng_FreeDec(_decoderInstPtr); |
| _decoderInstPtr = NULL; |
| } |
| _decoderExist = false; |
| _decoderInitialized = false; |
| } |
| |
| void ACMCNG::InternalDestructEncoderInst(void* ptrInst) { |
| if (ptrInst != NULL) { |
| WebRtcCng_FreeEnc(static_cast<CNG_enc_inst*>(ptrInst)); |
| } |
| return; |
| } |
| |
| WebRtc_Word16 ACMCNG::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(kDecoderCNG); |
| } |
| |
| } // namespace webrtc |