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e0fe4200eb
Bug: webrtc:356878416 Change-Id: Id2803736d06445b536f2ced02509eaaaf8fd804c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/359361 Reviewed-by: Florent Castelli <orphis@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42792}
72 lines
2.7 KiB
C++
72 lines
2.7 KiB
C++
/*
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* Copyright (c) 2016 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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#ifndef API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_
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#define API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_
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#include <memory>
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#include <vector>
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#include "absl/base/nullability.h"
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#include "absl/types/optional.h"
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#include "api/audio_codecs/audio_codec_pair_id.h"
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#include "api/audio_codecs/audio_decoder.h"
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#include "api/audio_codecs/audio_format.h"
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#include "api/environment/environment.h"
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#include "api/ref_count.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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// A factory that creates AudioDecoders.
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class AudioDecoderFactory : public RefCountInterface {
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public:
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virtual std::vector<AudioCodecSpec> GetSupportedDecoders() = 0;
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virtual bool IsSupportedDecoder(const SdpAudioFormat& format) = 0;
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// Create a new decoder instance. The `codec_pair_id` argument is used to link
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// encoders and decoders that talk to the same remote entity: if a
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// AudioEncoderFactory::Create() and a AudioDecoderFactory::Create() call
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// receive non-null IDs that compare equal, the factory implementations may
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// assume that the encoder and decoder form a pair. (The intended use case for
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// this is to set up communication between the AudioEncoder and AudioDecoder
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// instances, which is needed for some codecs with built-in bandwidth
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// adaptation.)
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//
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// Returns null if the format isn't supported.
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//
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// Note: Implementations need to be robust against combinations other than
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// one encoder, one decoder getting the same ID; such decoders must still
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// work.
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[[deprecated("bugs.webrtc.org/356878416 - Use `Create` instead")]] //
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virtual std::unique_ptr<AudioDecoder>
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MakeAudioDecoder(const SdpAudioFormat& format,
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absl::optional<AudioCodecPairId> codec_pair_id) {
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RTC_DCHECK_NOTREACHED();
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return nullptr;
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}
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// TODO: bugs.webrtc.org/356878416 - Make pure virtual when implemented by
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// derived classes instead of the MakeAudioDecoder.
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virtual absl::Nullable<std::unique_ptr<AudioDecoder>> Create(
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const Environment& env,
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const SdpAudioFormat& format,
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absl::optional<AudioCodecPairId> codec_pair_id) {
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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return MakeAudioDecoder(format, codec_pair_id);
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#pragma clang diagnostic pop
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}
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};
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} // namespace webrtc
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#endif // API_AUDIO_CODECS_AUDIO_DECODER_FACTORY_H_
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