| /* |
| * 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_common_defs.h" |
| #include "acm_neteq.h" |
| #include "acm_pcmu.h" |
| #include "trace.h" |
| #include "webrtc_neteq.h" |
| #include "webrtc_neteq_help_macros.h" |
| |
| // Codec interface |
| #include "g711_interface.h" |
| |
| namespace webrtc |
| { |
| |
| ACMPCMU::ACMPCMU(WebRtc_Word16 codecID) |
| { |
| _codecID = codecID; |
| } |
| |
| |
| ACMPCMU::~ACMPCMU() |
| { |
| return; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::InternalEncode( |
| WebRtc_UWord8* bitStream, |
| WebRtc_Word16* bitStreamLenByte) |
| { |
| *bitStreamLenByte = WebRtcG711_EncodeU(NULL, &_inAudio[_inAudioIxRead], |
| _frameLenSmpl*_noChannels, (WebRtc_Word16*)bitStream); |
| // increment the read index this tell the caller that how far |
| // we have gone forward in reading the audio buffer |
| _inAudioIxRead += _frameLenSmpl*_noChannels; |
| return *bitStreamLenByte; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::DecodeSafe( |
| WebRtc_UWord8* /* bitStream */, |
| WebRtc_Word16 /* bitStreamLenByte */, |
| WebRtc_Word16* /* audio */, |
| WebRtc_Word16* /* audioSamples */, |
| WebRtc_Word8* /* speechType */) |
| { |
| return 0; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::InternalInitEncoder( |
| WebRtcACMCodecParams* /* codecParams */) |
| { |
| // This codec does not need initialization, |
| // PCM has no instance |
| return 0; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::InternalInitDecoder( |
| WebRtcACMCodecParams* /* codecParams */) |
| { |
| // This codec does not need initialization, |
| // PCM has no instance |
| return 0; |
| } |
| |
| |
| WebRtc_Word32 |
| ACMPCMU::CodecDef( |
| WebRtcNetEQ_CodecDef& codecDef, |
| const CodecInst& codecInst) |
| { |
| // Fill up the structure by calling |
| // "SET_CODEC_PAR" & "SET_PCMU_FUNCTION." |
| // Then call NetEQ to add the codec to it's |
| // database. |
| SET_CODEC_PAR((codecDef), kDecoderPCMu, codecInst.pltype, NULL, 8000); |
| SET_PCMU_FUNCTIONS((codecDef)); |
| return 0; |
| } |
| |
| |
| ACMGenericCodec* |
| ACMPCMU::CreateInstance(void) |
| { |
| return NULL; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::InternalCreateEncoder() |
| { |
| // PCM has no instance |
| return 0; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::InternalCreateDecoder() |
| { |
| // PCM has no instance |
| return 0; |
| } |
| |
| |
| void |
| ACMPCMU::InternalDestructEncoderInst( |
| void* /* ptrInst */) |
| { |
| // PCM has no instance |
| return; |
| } |
| |
| |
| void |
| ACMPCMU::DestructEncoderSafe() |
| { |
| // PCM has no instance |
| _encoderExist = false; |
| _encoderInitialized = false; |
| return; |
| } |
| |
| void ACMPCMU::DestructDecoderSafe() |
| { |
| // PCM has no instance |
| _decoderInitialized = false; |
| _decoderExist = false; |
| return; |
| } |
| |
| |
| WebRtc_Word16 |
| ACMPCMU::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(kDecoderPCMu); |
| } |
| |
| } // namespace webrtc |