diff options
Diffstat (limited to 'third_party/libwebrtc/api/audio_codecs/g722/audio_decoder_g722.cc')
-rw-r--r-- | third_party/libwebrtc/api/audio_codecs/g722/audio_decoder_g722.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/audio_codecs/g722/audio_decoder_g722.cc b/third_party/libwebrtc/api/audio_codecs/g722/audio_decoder_g722.cc new file mode 100644 index 0000000000..ed7163471a --- /dev/null +++ b/third_party/libwebrtc/api/audio_codecs/g722/audio_decoder_g722.cc @@ -0,0 +1,56 @@ +/* + * 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/g722/audio_decoder_g722.h" + +#include <memory> +#include <vector> + +#include "absl/strings/match.h" +#include "modules/audio_coding/codecs/g722/audio_decoder_g722.h" +#include "rtc_base/numerics/safe_conversions.h" + +namespace webrtc { + +absl::optional<AudioDecoderG722::Config> AudioDecoderG722::SdpToConfig( + const SdpAudioFormat& format) { + if (absl::EqualsIgnoreCase(format.name, "G722") && + format.clockrate_hz == 8000 && + (format.num_channels == 1 || format.num_channels == 2)) { + return Config{rtc::dchecked_cast<int>(format.num_channels)}; + } + return absl::nullopt; +} + +void AudioDecoderG722::AppendSupportedDecoders( + std::vector<AudioCodecSpec>* specs) { + specs->push_back({{"G722", 8000, 1}, {16000, 1, 64000}}); +} + +std::unique_ptr<AudioDecoder> AudioDecoderG722::MakeAudioDecoder( + Config config, + absl::optional<AudioCodecPairId> /*codec_pair_id*/, + const FieldTrialsView* field_trials) { + if (!config.IsOk()) { + RTC_DCHECK_NOTREACHED(); + return nullptr; + } + switch (config.num_channels) { + case 1: + return std::make_unique<AudioDecoderG722Impl>(); + case 2: + return std::make_unique<AudioDecoderG722StereoImpl>(); + default: + RTC_DCHECK_NOTREACHED(); + return nullptr; + } +} + +} // namespace webrtc |