mirror of
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84 lines
2.3 KiB
C++
84 lines
2.3 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 "webrtc/modules/audio_coding/main/acm2/acm_cng.h"
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#include "webrtc/modules/audio_coding/codecs/cng/include/webrtc_cng.h"
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#include "webrtc/modules/audio_coding/main/acm2/acm_codec_database.h"
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#include "webrtc/modules/audio_coding/main/acm2/acm_common_defs.h"
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#include "webrtc/system_wrappers/interface/trace.h"
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namespace webrtc {
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namespace acm2 {
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ACMCNG::ACMCNG(int16_t codec_id) {
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encoder_inst_ptr_ = NULL;
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codec_id_ = codec_id;
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samp_freq_hz_ = ACMCodecDB::CodecFreq(codec_id_);
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return;
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}
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ACMCNG::~ACMCNG() {
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if (encoder_inst_ptr_ != NULL) {
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WebRtcCng_FreeEnc(encoder_inst_ptr_);
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encoder_inst_ptr_ = 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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int16_t ACMCNG::InternalEncode(uint8_t* /* bitstream */,
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int16_t* /* bitstream_len_byte */) {
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return -1;
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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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int16_t ACMCNG::InternalInitEncoder(WebRtcACMCodecParams* /* codec_params */) {
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return -1;
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}
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ACMGenericCodec* ACMCNG::CreateInstance(void) { return NULL; }
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int16_t ACMCNG::InternalCreateEncoder() {
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if (WebRtcCng_CreateEnc(&encoder_inst_ptr_) < 0) {
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encoder_inst_ptr_ = 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 (encoder_inst_ptr_ != NULL) {
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WebRtcCng_FreeEnc(encoder_inst_ptr_);
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encoder_inst_ptr_ = NULL;
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}
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encoder_exist_ = false;
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encoder_initialized_ = false;
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}
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void ACMCNG::InternalDestructEncoderInst(void* ptr_inst) {
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if (ptr_inst != NULL) {
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WebRtcCng_FreeEnc(static_cast<CNG_enc_inst*>(ptr_inst));
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}
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return;
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}
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} // namespace acm2
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} // namespace webrtc
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