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/*
* Copyright (c) 2014 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 "api/audio_codecs/audio_encoder.h"
#include <cstddef>
#include <cstdint>
#include <memory>
#include <optional>
#include "absl/strings/string_view.h"
#include "api/array_view.h"
#include "api/call/bitrate_allocation.h"
#include "rtc_base/buffer.h"
#include "rtc_base/checks.h"
#include "rtc_base/trace_event.h"
namespace webrtc {
// TODO(peah): Rationale
static_assert(AudioEncoder::kMaxNumberOfChannels <= 255, "");
ANAStats::ANAStats() = default;
ANAStats::~ANAStats() = default;
ANAStats::ANAStats(const ANAStats&) = default;
AudioEncoder::EncodedInfo::EncodedInfo() = default;
AudioEncoder::EncodedInfo::EncodedInfo(const EncodedInfo&) = default;
AudioEncoder::EncodedInfo::EncodedInfo(EncodedInfo&&) = default;
AudioEncoder::EncodedInfo::~EncodedInfo() = default;
AudioEncoder::EncodedInfo& AudioEncoder::EncodedInfo::operator=(
const EncodedInfo&) = default;
AudioEncoder::EncodedInfo& AudioEncoder::EncodedInfo::operator=(EncodedInfo&&) =
default;
int AudioEncoder::RtpTimestampRateHz() const {
return SampleRateHz();
}
AudioEncoder::EncodedInfo AudioEncoder::Encode(uint32_t rtp_timestamp,
ArrayView<const int16_t> audio,
Buffer* encoded) {
TRACE_EVENT0("webrtc", "AudioEncoder::Encode");
RTC_CHECK_EQ(audio.size(),
static_cast<size_t>(NumChannels() * SampleRateHz() / 100));
const size_t old_size = encoded->size();
EncodedInfo info = EncodeImpl(rtp_timestamp, audio, encoded);
RTC_CHECK_EQ(encoded->size() - old_size, info.encoded_bytes);
return info;
}
bool AudioEncoder::SetFec(bool enable) {
return !enable;
}
bool AudioEncoder::SetDtx(bool enable) {
return !enable;
}
bool AudioEncoder::GetDtx() const {
return false;
}
bool AudioEncoder::SetApplication(Application /* application */) {
return false;
}
void AudioEncoder::SetMaxPlaybackRate(int /* frequency_hz */) {}
void AudioEncoder::SetTargetBitrate(int /* target_bps */) {}
ArrayView<std::unique_ptr<AudioEncoder>>
AudioEncoder::ReclaimContainedEncoders() {
return nullptr;
}
bool AudioEncoder::EnableAudioNetworkAdaptor(absl::string_view /*config*/) {
return false;
}
void AudioEncoder::DisableAudioNetworkAdaptor() {}
void AudioEncoder::OnReceivedUplinkPacketLossFraction(
float /* uplink_packet_loss_fraction */) {}
void AudioEncoder::OnReceivedUplinkRecoverablePacketLossFraction(
float /* uplink_recoverable_packet_loss_fraction */) {
RTC_DCHECK_NOTREACHED();
}
void AudioEncoder::OnReceivedTargetAudioBitrate(int target_audio_bitrate_bps) {
OnReceivedUplinkBandwidth(target_audio_bitrate_bps, std::nullopt);
}
void AudioEncoder::OnReceivedUplinkBandwidth(
int /* target_audio_bitrate_bps */,
std::optional<int64_t> /* bwe_period_ms */) {}
void AudioEncoder::OnReceivedUplinkAllocation(BitrateAllocationUpdate update) {
OnReceivedUplinkBandwidth(update.target_bitrate.bps(),
update.bwe_period.ms());
}
void AudioEncoder::OnReceivedRtt(int /* rtt_ms */) {}
void AudioEncoder::OnReceivedOverhead(size_t /* overhead_bytes_per_packet */) {}
void AudioEncoder::SetReceiverFrameLengthRange(int /* min_frame_length_ms */,
int /* max_frame_length_ms */) {}
ANAStats AudioEncoder::GetANAStats() const {
return ANAStats();
}
} // namespace webrtc
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