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https://github.com/mollyim/webrtc.git
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acabb3641b
As the synchronous version only posts a task to recreate the encoder later, it is not possible to catch errors and state changes that could appear then. The asynchronous version of SetParameters() aims to solve this by providing a callback to wait for the completion of the encoder reconfiguration, allowing any error to be propagate and subsequent getParameters() call to have up to date information. Bug: webrtc:11607 Change-Id: I5548e75aa14a97f8d9c0c94df1e72e9cd40887b2 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/278420 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Florent Castelli <orphis@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38627}
126 lines
4.3 KiB
C++
126 lines
4.3 KiB
C++
/*
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* Copyright (c) 2013 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 VIDEO_VIDEO_SEND_STREAM_H_
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#define VIDEO_VIDEO_SEND_STREAM_H_
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "api/fec_controller.h"
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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/task_queue/pending_task_safety_flag.h"
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#include "call/bitrate_allocator.h"
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#include "call/video_receive_stream.h"
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#include "call/video_send_stream.h"
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#include "modules/utility/maybe_worker_thread.h"
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#include "rtc_base/event.h"
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#include "rtc_base/system/no_unique_address.h"
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#include "video/encoder_rtcp_feedback.h"
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#include "video/send_delay_stats.h"
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#include "video/send_statistics_proxy.h"
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#include "video/video_send_stream_impl.h"
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#include "video/video_stream_encoder_interface.h"
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namespace webrtc {
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namespace test {
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class VideoSendStreamPeer;
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} // namespace test
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class CallStats;
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class IvfFileWriter;
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class RateLimiter;
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class RtpRtcp;
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class RtpTransportControllerSendInterface;
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class RtcEventLog;
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namespace internal {
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class VideoSendStreamImpl;
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// VideoSendStream implements webrtc::VideoSendStream.
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// Internally, it delegates all public methods to VideoSendStreamImpl and / or
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// VideoStreamEncoder.
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class VideoSendStream : public webrtc::VideoSendStream {
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public:
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using RtpStateMap = std::map<uint32_t, RtpState>;
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using RtpPayloadStateMap = std::map<uint32_t, RtpPayloadState>;
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VideoSendStream(
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Clock* clock,
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int num_cpu_cores,
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TaskQueueFactory* task_queue_factory,
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TaskQueueBase* network_queue,
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RtcpRttStats* call_stats,
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RtpTransportControllerSendInterface* transport,
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BitrateAllocatorInterface* bitrate_allocator,
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SendDelayStats* send_delay_stats,
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RtcEventLog* event_log,
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VideoSendStream::Config config,
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VideoEncoderConfig encoder_config,
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const std::map<uint32_t, RtpState>& suspended_ssrcs,
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const std::map<uint32_t, RtpPayloadState>& suspended_payload_states,
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std::unique_ptr<FecController> fec_controller,
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const FieldTrialsView& field_trials);
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~VideoSendStream() override;
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void DeliverRtcp(const uint8_t* packet, size_t length);
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// webrtc::VideoSendStream implementation.
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void UpdateActiveSimulcastLayers(std::vector<bool> active_layers) override;
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void Start() override;
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void Stop() override;
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bool started() override;
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void AddAdaptationResource(rtc::scoped_refptr<Resource> resource) override;
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std::vector<rtc::scoped_refptr<Resource>> GetAdaptationResources() override;
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void SetSource(rtc::VideoSourceInterface<webrtc::VideoFrame>* source,
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const DegradationPreference& degradation_preference) override;
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void ReconfigureVideoEncoder(VideoEncoderConfig config) override;
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void ReconfigureVideoEncoder(VideoEncoderConfig config,
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SetParametersCallback callback) override;
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Stats GetStats() override;
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void StopPermanentlyAndGetRtpStates(RtpStateMap* rtp_state_map,
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RtpPayloadStateMap* payload_state_map);
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void GenerateKeyFrame(const std::vector<std::string>& rids) override;
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private:
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friend class test::VideoSendStreamPeer;
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absl::optional<float> GetPacingFactorOverride() const;
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RTC_NO_UNIQUE_ADDRESS SequenceChecker thread_checker_;
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MaybeWorkerThread* const rtp_transport_queue_;
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RtpTransportControllerSendInterface* const transport_;
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rtc::Event thread_sync_event_;
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rtc::scoped_refptr<PendingTaskSafetyFlag> transport_queue_safety_ =
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PendingTaskSafetyFlag::CreateDetached();
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SendStatisticsProxy stats_proxy_;
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const VideoSendStream::Config config_;
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const VideoEncoderConfig::ContentType content_type_;
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std::unique_ptr<VideoStreamEncoderInterface> video_stream_encoder_;
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EncoderRtcpFeedback encoder_feedback_;
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RtpVideoSenderInterface* const rtp_video_sender_;
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VideoSendStreamImpl send_stream_;
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bool running_ RTC_GUARDED_BY(thread_checker_) = false;
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};
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} // namespace internal
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} // namespace webrtc
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#endif // VIDEO_VIDEO_SEND_STREAM_H_
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