a827a30bb7
This reverts commit 0eba415fb40cc4e3958546a8ee53c698940df0a1. Reason for revert: previously unknown lock recursion occurring downstream. Original change's description: > Migrate video/ except video/end_to_end_tests and video/adaptation to webrtc::Mutex. > > Also migrates test/ partly. > > Bug: webrtc:11567 > Change-Id: I4203919615c087e5faca3b2fa1d54cba9f171e07 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178813 > Reviewed-by: Erik Språng <sprang@webrtc.org> > Commit-Queue: Markus Handell <handellm@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#31653} TBR=sprang@webrtc.org,handellm@webrtc.org Change-Id: I13f337e0de5b8f0eb19deb57cb5623444460ec4d No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: webrtc:11567 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178842 Reviewed-by: Markus Handell <handellm@webrtc.org> Commit-Queue: Markus Handell <handellm@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31656}
75 lines
3.1 KiB
C++
75 lines
3.1 KiB
C++
/*
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* Copyright 2020 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_SOURCE_SINK_CONTROLLER_H_
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#define VIDEO_VIDEO_SOURCE_SINK_CONTROLLER_H_
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#include <string>
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#include "absl/types/optional.h"
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#include "api/video/video_frame.h"
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#include "api/video/video_sink_interface.h"
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#include "api/video/video_source_interface.h"
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#include "call/adaptation/video_source_restrictions.h"
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#include "rtc_base/critical_section.h"
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namespace webrtc {
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// Responsible for configuring source/sink settings, i.e. performing
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// rtc::VideoSourceInterface<VideoFrame>::AddOrUpdateSink(). It does this by
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// storing settings internally which are converted to rtc::VideoSinkWants when
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// PushSourceSinkSettings() is performed.
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class VideoSourceSinkController {
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public:
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VideoSourceSinkController(rtc::VideoSinkInterface<VideoFrame>* sink,
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rtc::VideoSourceInterface<VideoFrame>* source);
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void SetSource(rtc::VideoSourceInterface<VideoFrame>* source);
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// Must be called in order for changes to settings to have an effect. This
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// allows you to modify multiple properties in a single push to the sink.
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void PushSourceSinkSettings();
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VideoSourceRestrictions restrictions() const;
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absl::optional<size_t> pixels_per_frame_upper_limit() const;
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absl::optional<double> frame_rate_upper_limit() const;
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bool rotation_applied() const;
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int resolution_alignment() const;
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// Updates the settings stored internally. In order for these settings to be
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// applied to the sink, PushSourceSinkSettings() must subsequently be called.
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void SetRestrictions(VideoSourceRestrictions restrictions);
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void SetPixelsPerFrameUpperLimit(
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absl::optional<size_t> pixels_per_frame_upper_limit);
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void SetFrameRateUpperLimit(absl::optional<double> frame_rate_upper_limit);
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void SetRotationApplied(bool rotation_applied);
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void SetResolutionAlignment(int resolution_alignment);
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private:
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rtc::VideoSinkWants CurrentSettingsToSinkWants() const
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RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_);
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mutable rtc::CriticalSection crit_;
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rtc::VideoSinkInterface<VideoFrame>* const sink_;
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rtc::VideoSourceInterface<VideoFrame>* source_ RTC_GUARDED_BY(&crit_);
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// Pixel and frame rate restrictions.
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VideoSourceRestrictions restrictions_ RTC_GUARDED_BY(&crit_);
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// Ensures that even if we are not restricted, the sink is never configured
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// above this limit. Example: We are not CPU limited (no |restrictions_|) but
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// our encoder is capped at 30 fps (= |frame_rate_upper_limit_|).
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absl::optional<size_t> pixels_per_frame_upper_limit_ RTC_GUARDED_BY(&crit_);
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absl::optional<double> frame_rate_upper_limit_ RTC_GUARDED_BY(&crit_);
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bool rotation_applied_ RTC_GUARDED_BY(&crit_) = false;
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int resolution_alignment_ RTC_GUARDED_BY(&crit_) = 1;
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};
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} // namespace webrtc
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#endif // VIDEO_VIDEO_SOURCE_SINK_CONTROLLER_H_
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