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webrtc/modules/audio_coding/acm2/rent_a_codec.cc
Danil Chapovalov b602123a5a Replace rtc::Optional with absl::optional in modules/audio_coding 
This is a no-op change because rtc::Optional is an alias to absl::optional

This CL generated by running script with parameter 'modules/audio_coding'

find $@ -type f \( -name \*.h -o -name \*.cc \) \
-exec sed -i 's|rtc::Optional|absl::optional|g' {} \+ \
-exec sed -i 's|rtc::nullopt|absl::nullopt|g' {} \+ \
-exec sed -i 's|#include "api/optional.h"|#include "absl/types/optional.h"|' {} \+

find $@ -type f -name BUILD.gn \
-exec sed -r -i 's|"[\./api]*:optional"|"//third_party/abseil-cpp/absl/types:optional"|' {} \+;

git cl format

Bug: webrtc:9078
Change-Id: Ic980ee605148fdb160666d4aa03cc87175e48fe8
Reviewed-on: https://webrtc-review.googlesource.com/84130
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23659}
2018-06-19 12:46:20 +00:00

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/*
* Copyright (c) 2015 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 "modules/audio_coding/acm2/rent_a_codec.h"
#include <memory>
#include <utility>
#include "modules/audio_coding/codecs/cng/audio_encoder_cng.h"
#include "modules/audio_coding/codecs/g711/audio_encoder_pcm.h"
#include "rtc_base/logging.h"
#include "modules/audio_coding/codecs/g722/audio_encoder_g722.h"
#ifdef WEBRTC_CODEC_ILBC
#include "modules/audio_coding/codecs/ilbc/audio_encoder_ilbc.h"
#endif
#ifdef WEBRTC_CODEC_ISACFX
#include "modules/audio_coding/codecs/isac/fix/include/audio_decoder_isacfix.h" // nogncheck
#include "modules/audio_coding/codecs/isac/fix/include/audio_encoder_isacfix.h" // nogncheck
#endif
#ifdef WEBRTC_CODEC_ISAC
#include "modules/audio_coding/codecs/isac/main/include/audio_decoder_isac.h" // nogncheck
#include "modules/audio_coding/codecs/isac/main/include/audio_encoder_isac.h" // nogncheck
#endif
#ifdef WEBRTC_CODEC_OPUS
#include "modules/audio_coding/codecs/opus/audio_encoder_opus.h"
#endif
#include "modules/audio_coding/codecs/pcm16b/audio_encoder_pcm16b.h"
#ifdef WEBRTC_CODEC_RED
#include "modules/audio_coding/codecs/red/audio_encoder_copy_red.h"
#endif
#include "modules/audio_coding/acm2/acm_codec_database.h"
#if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC)
#include "modules/audio_coding/codecs/isac/locked_bandwidth_info.h"
#endif
namespace webrtc {
namespace acm2 {
absl::optional<RentACodec::CodecId> RentACodec::CodecIdByParams(
const char* payload_name,
int sampling_freq_hz,
size_t channels) {
return CodecIdFromIndex(
ACMCodecDB::CodecId(payload_name, sampling_freq_hz, channels));
}
absl::optional<CodecInst> RentACodec::CodecInstById(CodecId codec_id) {
absl::optional<int> mi = CodecIndexFromId(codec_id);
return mi ? absl::optional<CodecInst>(Database()[*mi]) : absl::nullopt;
}
absl::optional<RentACodec::CodecId> RentACodec::CodecIdByInst(
const CodecInst& codec_inst) {
return CodecIdFromIndex(ACMCodecDB::CodecNumber(codec_inst));
}
absl::optional<CodecInst> RentACodec::CodecInstByParams(
const char* payload_name,
int sampling_freq_hz,
size_t channels) {
absl::optional<CodecId> codec_id =
CodecIdByParams(payload_name, sampling_freq_hz, channels);
if (!codec_id)
return absl::nullopt;
absl::optional<CodecInst> ci = CodecInstById(*codec_id);
RTC_DCHECK(ci);
// Keep the number of channels from the function call. For most codecs it
// will be the same value as in default codec settings, but not for all.
ci->channels = channels;
return ci;
}
bool RentACodec::IsCodecValid(const CodecInst& codec_inst) {
return ACMCodecDB::CodecNumber(codec_inst) >= 0;
}
absl::optional<bool> RentACodec::IsSupportedNumChannels(CodecId codec_id,
size_t num_channels) {
auto i = CodecIndexFromId(codec_id);
return i ? absl::optional<bool>(
ACMCodecDB::codec_settings_[*i].channel_support >=
num_channels)
: absl::nullopt;
}
rtc::ArrayView<const CodecInst> RentACodec::Database() {
return rtc::ArrayView<const CodecInst>(ACMCodecDB::database_,
NumberOfCodecs());
}
absl::optional<NetEqDecoder> RentACodec::NetEqDecoderFromCodecId(
CodecId codec_id,
size_t num_channels) {
absl::optional<int> i = CodecIndexFromId(codec_id);
if (!i)
return absl::nullopt;
const NetEqDecoder ned = ACMCodecDB::neteq_decoders_[*i];
return (ned == NetEqDecoder::kDecoderOpus && num_channels == 2)
? NetEqDecoder::kDecoderOpus_2ch
: ned;
}
RentACodec::RegistrationResult RentACodec::RegisterCngPayloadType(
std::map<int, int>* pt_map,
const CodecInst& codec_inst) {
if (STR_CASE_CMP(codec_inst.plname, "CN") != 0)
return RegistrationResult::kSkip;
switch (codec_inst.plfreq) {
case 8000:
case 16000:
case 32000:
case 48000:
(*pt_map)[codec_inst.plfreq] = codec_inst.pltype;
return RegistrationResult::kOk;
default:
return RegistrationResult::kBadFreq;
}
}
RentACodec::RegistrationResult RentACodec::RegisterRedPayloadType(
std::map<int, int>* pt_map,
const CodecInst& codec_inst) {
if (STR_CASE_CMP(codec_inst.plname, "RED") != 0)
return RegistrationResult::kSkip;
switch (codec_inst.plfreq) {
case 8000:
(*pt_map)[codec_inst.plfreq] = codec_inst.pltype;
return RegistrationResult::kOk;
default:
return RegistrationResult::kBadFreq;
}
}
namespace {
// Returns a new speech encoder, or null on error.
// TODO(kwiberg): Don't handle errors here (bug 5033)
std::unique_ptr<AudioEncoder> CreateEncoder(
const CodecInst& speech_inst,
const rtc::scoped_refptr<LockedIsacBandwidthInfo>& bwinfo) {
#if defined(WEBRTC_CODEC_ISACFX)
if (STR_CASE_CMP(speech_inst.plname, "isac") == 0)
return std::unique_ptr<AudioEncoder>(
new AudioEncoderIsacFixImpl(speech_inst, bwinfo));
#endif
#if defined(WEBRTC_CODEC_ISAC)
if (STR_CASE_CMP(speech_inst.plname, "isac") == 0)
return std::unique_ptr<AudioEncoder>(
new AudioEncoderIsacFloatImpl(speech_inst, bwinfo));
#endif
#ifdef WEBRTC_CODEC_OPUS
if (STR_CASE_CMP(speech_inst.plname, "opus") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderOpusImpl(speech_inst));
#endif
if (STR_CASE_CMP(speech_inst.plname, "pcmu") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderPcmU(speech_inst));
if (STR_CASE_CMP(speech_inst.plname, "pcma") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderPcmA(speech_inst));
if (STR_CASE_CMP(speech_inst.plname, "l16") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderPcm16B(speech_inst));
#ifdef WEBRTC_CODEC_ILBC
if (STR_CASE_CMP(speech_inst.plname, "ilbc") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderIlbcImpl(speech_inst));
#endif
if (STR_CASE_CMP(speech_inst.plname, "g722") == 0)
return std::unique_ptr<AudioEncoder>(new AudioEncoderG722Impl(speech_inst));
RTC_LOG_F(LS_ERROR) << "Could not create encoder of type "
<< speech_inst.plname;
return std::unique_ptr<AudioEncoder>();
}
std::unique_ptr<AudioEncoder> CreateRedEncoder(
std::unique_ptr<AudioEncoder> encoder,
int red_payload_type) {
#ifdef WEBRTC_CODEC_RED
AudioEncoderCopyRed::Config config;
config.payload_type = red_payload_type;
config.speech_encoder = std::move(encoder);
return std::unique_ptr<AudioEncoder>(
new AudioEncoderCopyRed(std::move(config)));
#else
return std::unique_ptr<AudioEncoder>();
#endif
}
std::unique_ptr<AudioEncoder> CreateCngEncoder(
std::unique_ptr<AudioEncoder> encoder,
int payload_type,
ACMVADMode vad_mode) {
AudioEncoderCng::Config config;
config.num_channels = encoder->NumChannels();
config.payload_type = payload_type;
config.speech_encoder = std::move(encoder);
switch (vad_mode) {
case VADNormal:
config.vad_mode = Vad::kVadNormal;
break;
case VADLowBitrate:
config.vad_mode = Vad::kVadLowBitrate;
break;
case VADAggr:
config.vad_mode = Vad::kVadAggressive;
break;
case VADVeryAggr:
config.vad_mode = Vad::kVadVeryAggressive;
break;
default:
FATAL();
}
return std::unique_ptr<AudioEncoder>(new AudioEncoderCng(std::move(config)));
}
std::unique_ptr<AudioDecoder> CreateIsacDecoder(
int sample_rate_hz,
const rtc::scoped_refptr<LockedIsacBandwidthInfo>& bwinfo) {
#if defined(WEBRTC_CODEC_ISACFX)
return std::unique_ptr<AudioDecoder>(
new AudioDecoderIsacFixImpl(sample_rate_hz, bwinfo));
#elif defined(WEBRTC_CODEC_ISAC)
return std::unique_ptr<AudioDecoder>(
new AudioDecoderIsacFloatImpl(sample_rate_hz, bwinfo));
#else
FATAL() << "iSAC is not supported.";
return std::unique_ptr<AudioDecoder>();
#endif
}
} // namespace
RentACodec::RentACodec() {
#if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC)
isac_bandwidth_info_ = new LockedIsacBandwidthInfo;
#endif
}
RentACodec::~RentACodec() = default;
std::unique_ptr<AudioEncoder> RentACodec::RentEncoder(
const CodecInst& codec_inst) {
return CreateEncoder(codec_inst, isac_bandwidth_info_);
}
RentACodec::StackParameters::StackParameters() {
// Register the default payload types for RED and CNG.
for (const CodecInst& ci : RentACodec::Database()) {
RentACodec::RegisterCngPayloadType(&cng_payload_types, ci);
RentACodec::RegisterRedPayloadType(&red_payload_types, ci);
}
}
RentACodec::StackParameters::~StackParameters() = default;
std::unique_ptr<AudioEncoder> RentACodec::RentEncoderStack(
StackParameters* param) {
if (!param->speech_encoder)
return nullptr;
if (param->use_codec_fec) {
// Switch FEC on. On failure, remember that FEC is off.
if (!param->speech_encoder->SetFec(true))
param->use_codec_fec = false;
} else {
// Switch FEC off. This shouldn't fail.
const bool success = param->speech_encoder->SetFec(false);
RTC_DCHECK(success);
}
auto pt = [&param](const std::map<int, int>& m) {
auto it = m.find(param->speech_encoder->SampleRateHz());
return it == m.end() ? absl::nullopt : absl::optional<int>(it->second);
};
auto cng_pt = pt(param->cng_payload_types);
param->use_cng =
param->use_cng && cng_pt && param->speech_encoder->NumChannels() == 1;
auto red_pt = pt(param->red_payload_types);
param->use_red = param->use_red && red_pt;
if (param->use_cng || param->use_red) {
// The RED and CNG encoders need to be in sync with the speech encoder, so
// reset the latter to ensure its buffer is empty.
param->speech_encoder->Reset();
}
std::unique_ptr<AudioEncoder> encoder_stack =
std::move(param->speech_encoder);
if (param->use_red) {
encoder_stack = CreateRedEncoder(std::move(encoder_stack), *red_pt);
}
if (param->use_cng) {
encoder_stack =
CreateCngEncoder(std::move(encoder_stack), *cng_pt, param->vad_mode);
}
return encoder_stack;
}
std::unique_ptr<AudioDecoder> RentACodec::RentIsacDecoder(int sample_rate_hz) {
return CreateIsacDecoder(sample_rate_hz, isac_bandwidth_info_);
}
} // namespace acm2
} // namespace webrtc
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