diff options
Diffstat (limited to 'chromium/third_party/webrtc/modules/audio_coding/main/source/acm_opus.cc')
-rw-r--r-- | chromium/third_party/webrtc/modules/audio_coding/main/source/acm_opus.cc | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/chromium/third_party/webrtc/modules/audio_coding/main/source/acm_opus.cc b/chromium/third_party/webrtc/modules/audio_coding/main/source/acm_opus.cc deleted file mode 100644 index 413f3715fc6..00000000000 --- a/chromium/third_party/webrtc/modules/audio_coding/main/source/acm_opus.cc +++ /dev/null @@ -1,319 +0,0 @@ -/* - * Copyright (c) 2012 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 "webrtc/modules/audio_coding/main/source/acm_opus.h" - -#include "webrtc/modules/audio_coding/main/source/acm_codec_database.h" -#include "webrtc/modules/audio_coding/main/acm2/acm_common_defs.h" -#include "webrtc/modules/audio_coding/main/source/acm_neteq.h" -#include "webrtc/modules/audio_coding/neteq/interface/webrtc_neteq.h" -#include "webrtc/modules/audio_coding/neteq/interface/webrtc_neteq_help_macros.h" -#include "webrtc/system_wrappers/interface/trace.h" - -#ifdef WEBRTC_CODEC_OPUS -#include "webrtc/modules/audio_coding/codecs/opus/interface/opus_interface.h" -#endif - -namespace webrtc { - -namespace acm1 { - -#ifndef WEBRTC_CODEC_OPUS - -ACMOpus::ACMOpus(int16_t /* codec_id */) - : encoder_inst_ptr_(NULL), - decoder_inst_ptr_(NULL), - sample_freq_(0), - bitrate_(0), - channels_(1) { - return; -} - -ACMOpus::~ACMOpus() { - return; -} - -int16_t ACMOpus::InternalEncode(uint8_t* /* bitstream */, - int16_t* /* bitstream_len_byte */) { - return -1; -} - -int16_t ACMOpus::DecodeSafe(uint8_t* /* bitstream */, - int16_t /* bitstream_len_byte */, - int16_t* /* audio */, - int16_t* /* audio_samples */, - int8_t* /* speech_type */) { - return -1; -} - -int16_t ACMOpus::InternalInitEncoder(WebRtcACMCodecParams* /* codec_params */) { - return -1; -} - -int16_t ACMOpus::InternalInitDecoder(WebRtcACMCodecParams* /* codec_params */) { - return -1; -} - -int32_t ACMOpus::CodecDef(WebRtcNetEQ_CodecDef& /* codec_def */, - const CodecInst& /* codec_inst */) { - return -1; -} - -ACMGenericCodec* ACMOpus::CreateInstance(void) { - return NULL; -} - -int16_t ACMOpus::InternalCreateEncoder() { - return -1; -} - -void ACMOpus::DestructEncoderSafe() { - return; -} - -int16_t ACMOpus::InternalCreateDecoder() { - return -1; -} - -void ACMOpus::DestructDecoderSafe() { - return; -} - -void ACMOpus::InternalDestructEncoderInst(void* /* ptr_inst */) { - return; -} - -int16_t ACMOpus::SetBitRateSafe(const int32_t /*rate*/) { - return -1; -} - -bool ACMOpus::IsTrueStereoCodec() { - return true; -} - -void ACMOpus::SplitStereoPacket(uint8_t* /*payload*/, - int32_t* /*payload_length*/) {} - -#else //===================== Actual Implementation ======================= - -ACMOpus::ACMOpus(int16_t codec_id) - : encoder_inst_ptr_(NULL), - decoder_inst_ptr_(NULL), - sample_freq_(32000), // Default sampling frequency. - bitrate_(20000), // Default bit-rate. - channels_(1) { // Default mono - codec_id_ = codec_id; - - // Opus has internal DTX, but we don't use it for now. - has_internal_dtx_ = false; - - if (codec_id_ != ACMCodecDB::kOpus) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "Wrong codec id for Opus."); - sample_freq_ = -1; - bitrate_ = -1; - } - return; -} - -ACMOpus::~ACMOpus() { - if (encoder_inst_ptr_ != NULL) { - WebRtcOpus_EncoderFree(encoder_inst_ptr_); - encoder_inst_ptr_ = NULL; - } - if (decoder_inst_ptr_ != NULL) { - WebRtcOpus_DecoderFree(decoder_inst_ptr_); - decoder_inst_ptr_ = NULL; - } - return; -} - -int16_t ACMOpus::InternalEncode(uint8_t* bitstream, - int16_t* bitstream_len_byte) { - // Call Encoder. - *bitstream_len_byte = WebRtcOpus_Encode(encoder_inst_ptr_, - &in_audio_[in_audio_ix_read_], - frame_len_smpl_, - MAX_PAYLOAD_SIZE_BYTE, bitstream); - // Check for error reported from encoder. - if (*bitstream_len_byte < 0) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "InternalEncode: Encode error for Opus"); - *bitstream_len_byte = 0; - return -1; - } - - // Increment the read index. This tells the caller how far - // we have gone forward in reading the audio buffer. - in_audio_ix_read_ += frame_len_smpl_ * channels_; - - return *bitstream_len_byte; -} - -int16_t ACMOpus::DecodeSafe(uint8_t* bitstream, int16_t bitstream_len_byte, - int16_t* audio, int16_t* audio_samples, - int8_t* speech_type) { - return 0; -} - -int16_t ACMOpus::InternalInitEncoder(WebRtcACMCodecParams* codec_params) { - int16_t ret; - if (encoder_inst_ptr_ != NULL) { - WebRtcOpus_EncoderFree(encoder_inst_ptr_); - encoder_inst_ptr_ = NULL; - } - ret = WebRtcOpus_EncoderCreate(&encoder_inst_ptr_, - codec_params->codec_inst.channels); - // Store number of channels. - channels_ = codec_params->codec_inst.channels; - - if (ret < 0) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "Encoder creation failed for Opus"); - return ret; - } - ret = WebRtcOpus_SetBitRate(encoder_inst_ptr_, - codec_params->codec_inst.rate); - if (ret < 0) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "Setting initial bitrate failed for Opus"); - return ret; - } - - // Store bitrate. - bitrate_ = codec_params->codec_inst.rate; - - return 0; -} - -int16_t ACMOpus::InternalInitDecoder(WebRtcACMCodecParams* codec_params) { - if (decoder_inst_ptr_ == NULL) { - if (WebRtcOpus_DecoderCreate(&decoder_inst_ptr_, - codec_params->codec_inst.channels) < 0) { - return -1; - } - } - - // Number of channels in decoder should match the number in |codec_params|. - assert(codec_params->codec_inst.channels == - WebRtcOpus_DecoderChannels(decoder_inst_ptr_)); - - if (WebRtcOpus_DecoderInit(decoder_inst_ptr_) < 0) { - return -1; - } - if (WebRtcOpus_DecoderInitSlave(decoder_inst_ptr_) < 0) { - return -1; - } - return 0; -} - -int32_t ACMOpus::CodecDef(WebRtcNetEQ_CodecDef& codec_def, - const CodecInst& codec_inst) { - if (!decoder_initialized_) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "CodeDef: Decoder uninitialized for Opus"); - return -1; - } - - // Fill up the structure by calling "SET_CODEC_PAR" & "SET_OPUS_FUNCTION." - // Then call NetEQ to add the codec to its database. - // TODO(tlegrand): Decoder is registered in NetEQ as a 32 kHz decoder, which - // is true until we have a full 48 kHz system, and remove the downsampling - // in the Opus decoder wrapper. - SET_CODEC_PAR(codec_def, kDecoderOpus, codec_inst.pltype, - decoder_inst_ptr_, 32000); - - // If this is the master of NetEQ, regular decoder will be added, otherwise - // the slave decoder will be used. - if (is_master_) { - SET_OPUS_FUNCTIONS(codec_def); - } else { - SET_OPUSSLAVE_FUNCTIONS(codec_def); - } - - return 0; -} - -ACMGenericCodec* ACMOpus::CreateInstance(void) { - return NULL; -} - -int16_t ACMOpus::InternalCreateEncoder() { - // Real encoder will be created in InternalInitEncoder. - return 0; -} - -void ACMOpus::DestructEncoderSafe() { - if (encoder_inst_ptr_) { - WebRtcOpus_EncoderFree(encoder_inst_ptr_); - encoder_inst_ptr_ = NULL; - } -} - -int16_t ACMOpus::InternalCreateDecoder() { - // Real decoder will be created in InternalInitDecoder - return 0; -} - -void ACMOpus::DestructDecoderSafe() { - decoder_initialized_ = false; - if (decoder_inst_ptr_) { - WebRtcOpus_DecoderFree(decoder_inst_ptr_); - decoder_inst_ptr_ = NULL; - } -} - -void ACMOpus::InternalDestructEncoderInst(void* ptr_inst) { - if (ptr_inst != NULL) { - WebRtcOpus_EncoderFree(reinterpret_cast<OpusEncInst*>(ptr_inst)); - } - return; -} - -int16_t ACMOpus::SetBitRateSafe(const int32_t rate) { - if (rate < 6000 || rate > 510000) { - WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, unique_id_, - "SetBitRateSafe: Invalid rate Opus"); - return -1; - } - - bitrate_ = rate; - - // Ask the encoder for the new rate. - if (WebRtcOpus_SetBitRate(encoder_inst_ptr_, bitrate_) >= 0) { - encoder_params_.codec_inst.rate = bitrate_; - return 0; - } - - return -1; -} - -bool ACMOpus::IsTrueStereoCodec() { - return true; -} - -// Copy the stereo packet so that NetEq will insert into both master and slave. -void ACMOpus::SplitStereoPacket(uint8_t* payload, int32_t* payload_length) { - // Check for valid inputs. - assert(payload != NULL); - assert(*payload_length > 0); - - // Duplicate the payload. - memcpy(&payload[*payload_length], &payload[0], - sizeof(uint8_t) * (*payload_length)); - // Double the size of the packet. - *payload_length *= 2; -} - -#endif // WEBRTC_CODEC_OPUS - -} // namespace acm1 - -} // namespace webrtc |