14b43beb7c
TBR=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/915006 git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
143 lines
3.8 KiB
C++
143 lines
3.8 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "acm_cng.h"
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#include "acm_codec_database.h"
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#include "acm_common_defs.h"
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#include "acm_neteq.h"
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#include "trace.h"
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#include "webrtc_cng.h"
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#include "webrtc_neteq.h"
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#include "webrtc_neteq_help_macros.h"
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namespace webrtc {
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ACMCNG::ACMCNG(WebRtc_Word16 codecID) {
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_encoderInstPtr = NULL;
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_decoderInstPtr = NULL;
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_codecID = codecID;
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_sampFreqHz = ACMCodecDB::CodecFreq(_codecID);
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return;
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}
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ACMCNG::~ACMCNG() {
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if (_encoderInstPtr != NULL) {
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WebRtcCng_FreeEnc(_encoderInstPtr);
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_encoderInstPtr = NULL;
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}
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if (_decoderInstPtr != NULL) {
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WebRtcCng_FreeDec(_decoderInstPtr);
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_decoderInstPtr = NULL;
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}
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return;
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}
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// CNG is not like a regular encoder, this function
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// should not be called normally
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// instead the following function is called from inside
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// ACMGenericCodec::ProcessFrameVADDTX
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WebRtc_Word16 ACMCNG::InternalEncode(WebRtc_UWord8* /* bitStream */,
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WebRtc_Word16* /* bitStreamLenByte */) {
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return -1;
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}
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WebRtc_Word16 ACMCNG::DecodeSafe(WebRtc_UWord8* /* bitStream */,
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WebRtc_Word16 /* bitStreamLenByte */,
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WebRtc_Word16* /* audio */,
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WebRtc_Word16* /* audioSamples */,
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WebRtc_Word8* /* speechType */) {
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return 0;
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}
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// CNG is not like a regular encoder,
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// this function should not be called normally
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// instead the following function is called from inside
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// ACMGenericCodec::ProcessFrameVADDTX
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WebRtc_Word16 ACMCNG::InternalInitEncoder(
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WebRtcACMCodecParams* /* codecParams */) {
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return -1;
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}
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WebRtc_Word16 ACMCNG::InternalInitDecoder(
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WebRtcACMCodecParams* /* codecParams */) {
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return WebRtcCng_InitDec(_decoderInstPtr);
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}
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WebRtc_Word32 ACMCNG::CodecDef(WebRtcNetEQ_CodecDef& codecDef,
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const CodecInst& codecInst) {
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if (!_decoderInitialized) {
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// TODO (tlegrand): log error
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return -1;
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}
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// Fill up the structure by calling
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// "SET_CODEC_PAR" & "SET_CNG_FUNCTION."
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// Then return the structure back to NetEQ to add the codec to it's
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// database.
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if (_sampFreqHz == 8000 || _sampFreqHz == 16000 || _sampFreqHz == 32000 ||
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_sampFreqHz == 48000) {
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SET_CODEC_PAR((codecDef), kDecoderCNG, codecInst.pltype,
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_decoderInstPtr, _sampFreqHz);
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SET_CNG_FUNCTIONS((codecDef));
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return 0;
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} else {
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return -1;
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}
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}
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ACMGenericCodec* ACMCNG::CreateInstance(void) {
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return NULL;
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}
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WebRtc_Word16 ACMCNG::InternalCreateEncoder() {
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if (WebRtcCng_CreateEnc(&_encoderInstPtr) < 0) {
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_encoderInstPtr = NULL;
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return -1;
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} else {
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return 0;
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}
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}
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void ACMCNG::DestructEncoderSafe() {
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if (_encoderInstPtr != NULL) {
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WebRtcCng_FreeEnc(_encoderInstPtr);
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_encoderInstPtr = NULL;
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}
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_encoderExist = false;
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_encoderInitialized = false;
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}
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WebRtc_Word16 ACMCNG::InternalCreateDecoder() {
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if (WebRtcCng_CreateDec(&_decoderInstPtr) < 0) {
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_decoderInstPtr = NULL;
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return -1;
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} else {
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return 0;
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}
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}
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void ACMCNG::DestructDecoderSafe() {
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if (_decoderInstPtr != NULL) {
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WebRtcCng_FreeDec(_decoderInstPtr);
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_decoderInstPtr = NULL;
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}
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_decoderExist = false;
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_decoderInitialized = false;
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}
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void ACMCNG::InternalDestructEncoderInst(void* ptrInst) {
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if (ptrInst != NULL) {
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WebRtcCng_FreeEnc(static_cast<CNG_enc_inst*>(ptrInst));
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}
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return;
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}
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} // namespace webrtc
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