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/*
* Copyright (c) 2017 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/L16/audio_decoder_L16.h"
#include <memory>
#include "absl/strings/match.h"
#include "modules/audio_coding/codecs/pcm16b/audio_decoder_pcm16b.h"
#include "modules/audio_coding/codecs/pcm16b/pcm16b_common.h"
#include "rtc_base/numerics/safe_conversions.h"
namespace webrtc {
absl::optional<AudioDecoderL16::Config> AudioDecoderL16::SdpToConfig(
const SdpAudioFormat& format) {
Config config;
config.sample_rate_hz = format.clockrate_hz;
config.num_channels = rtc::checked_cast<int>(format.num_channels);
if (absl::EqualsIgnoreCase(format.name, "L16") && config.IsOk()) {
return config;
}
return absl::nullopt;
}
void AudioDecoderL16::AppendSupportedDecoders(
std::vector<AudioCodecSpec>* specs) {
Pcm16BAppendSupportedCodecSpecs(specs);
}
std::unique_ptr<AudioDecoder> AudioDecoderL16::MakeAudioDecoder(
const Config& config,
absl::optional<AudioCodecPairId> /*codec_pair_id*/,
const FieldTrialsView* field_trials) {
if (!config.IsOk()) {
return nullptr;
}
return std::make_unique<AudioDecoderPcm16B>(config.sample_rate_hz,
config.num_channels);
}
} // namespace webrtc
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