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bd02e70629
This moves the ownership away from VideoReceiveStream2 and closer to VCMDecoderDataBase. That facilitates unregistration (upcoming change) without recreating receive streams. Bug: none Change-Id: I812175134730a0ffbf7077fd149c8489481c73d8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/272481 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37866}
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/*
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* Copyright (c) 2019 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 MODULES_VIDEO_CODING_VIDEO_RECEIVER2_H_
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#define MODULES_VIDEO_CODING_VIDEO_RECEIVER2_H_
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#include <memory>
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#include <vector>
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#include "api/field_trials_view.h"
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#include "api/sequence_checker.h"
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#include "api/video_codecs/video_decoder.h"
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#include "modules/video_coding/decoder_database.h"
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#include "modules/video_coding/encoded_frame.h"
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#include "modules/video_coding/generic_decoder.h"
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#include "modules/video_coding/timing/timing.h"
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#include "system_wrappers/include/clock.h"
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namespace webrtc {
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// This class is a copy of vcm::VideoReceiver, trimmed down to what's used by
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// VideoReceive stream, with the aim to incrementally trim it down further and
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// ultimately delete it. It's difficult to do this incrementally with the
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// original VideoReceiver class, since it is used by the legacy
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// VideoCodingModule api.
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class VideoReceiver2 {
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public:
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VideoReceiver2(Clock* clock,
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VCMTiming* timing,
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const FieldTrialsView& field_trials);
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~VideoReceiver2();
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void RegisterReceiveCodec(uint8_t payload_type,
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const VideoDecoder::Settings& decoder_settings);
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void RegisterExternalDecoder(std::unique_ptr<VideoDecoder> decoder,
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uint8_t payload_type);
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bool IsExternalDecoderRegistered(uint8_t payload_type) const;
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int32_t RegisterReceiveCallback(VCMReceiveCallback* receive_callback);
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int32_t Decode(const VCMEncodedFrame* frame);
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private:
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SequenceChecker construction_sequence_checker_;
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SequenceChecker decoder_sequence_checker_;
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Clock* const clock_;
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VCMDecodedFrameCallback decoded_frame_callback_;
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// Holds/owns the decoder instances that are registered via
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// `RegisterExternalDecoder` and referenced by `codec_database_`.
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std::vector<std::unique_ptr<VideoDecoder>> video_decoders_;
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// Callbacks are set before the decoder thread starts.
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// Once the decoder thread has been started, usage of `_codecDataBase` moves
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// over to the decoder thread.
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VCMDecoderDataBase codec_database_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_VIDEO_RECEIVER2_H_
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