e5eb7247ff
The whole point of all the audio codec stuff we've recently published in api/ is to function as lego bricks so that building stuff like our builtin audio codec factories will be easy. (This has landed once before, but got reverted because of Chromium test failures---apparently, someone isn't ignoring the case of the codec names like they're supposed to. The quick fix was to preserve the same case used by the old implementation.) BUG=webrtc:7821, webrtc:7822 Review-Url: https://codereview.webrtc.org/2998263002 Cr-Commit-Position: refs/heads/master@{#19512}
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/*
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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 "webrtc/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 "webrtc/common_types.h"
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#include "webrtc/modules/audio_coding/codecs/g722/audio_decoder_g722.h"
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#include "webrtc/rtc_base/ptr_util.h"
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#include "webrtc/rtc_base/safe_conversions.h"
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namespace webrtc {
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rtc::Optional<AudioDecoderG722::Config> AudioDecoderG722::SdpToConfig(
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const SdpAudioFormat& format) {
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return STR_CASE_CMP(format.name.c_str(), "G722") == 0 &&
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format.clockrate_hz == 8000 &&
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(format.num_channels == 1 || format.num_channels == 2)
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? rtc::Optional<Config>(
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Config{rtc::dchecked_cast<int>(format.num_channels)})
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: rtc::Optional<Config>();
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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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switch (config.num_channels) {
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case 1:
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return rtc::MakeUnique<AudioDecoderG722Impl>();
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case 2:
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return rtc::MakeUnique<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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