51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
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/*
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* Copyright (c) 2017 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 "api/audio_codecs/g722/audio_decoder_g722.h"
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#include <memory>
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#include <vector>
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#include "absl/strings/match.h"
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#include "modules/audio_coding/codecs/g722/audio_decoder_g722.h"
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#include "rtc_base/numerics/safe_conversions.h"
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namespace webrtc {
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absl::optional<AudioDecoderG722::Config> AudioDecoderG722::SdpToConfig(
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const SdpAudioFormat& format) {
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return absl::EqualsIgnoreCase(format.name, "G722") &&
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format.clockrate_hz == 8000 &&
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(format.num_channels == 1 || format.num_channels == 2)
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? absl::optional<Config>(
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Config{rtc::dchecked_cast<int>(format.num_channels)})
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: absl::nullopt;
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}
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void AudioDecoderG722::AppendSupportedDecoders(
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std::vector<AudioCodecSpec>* specs) {
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specs->push_back({{"G722", 8000, 1}, {16000, 1, 64000}});
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}
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std::unique_ptr<AudioDecoder> AudioDecoderG722::MakeAudioDecoder(
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Config config,
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absl::optional<AudioCodecPairId> /*codec_pair_id*/) {
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switch (config.num_channels) {
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case 1:
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return std::make_unique<AudioDecoderG722Impl>();
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case 2:
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return std::make_unique<AudioDecoderG722StereoImpl>();
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default:
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return nullptr;
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}
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}
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} // namespace webrtc
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