793bac569f
This reverts commit c89fdd716c4c8af608017c76f75bf27e4c3d602e. Reason for revert: Causes rare compilation error on win-libfuzzer-asan trybot. See https://ci.chromium.org/p/chromium/builders/try/win-libfuzzer-asan-rel/713745? Original change's description: > Refactor the PlatformThread API. > > PlatformThread's API is using old style function pointers, causes > casting, is unintuitive and forces artificial call sequences, and > is additionally possible to misuse in release mode. > > Fix this by an API face lift: > 1. The class is turned into a handle, which can be empty. > 2. The only way of getting a non-empty PlatformThread is by calling > SpawnJoinable or SpawnDetached, clearly conveying the semantics to the > code reader. > 3. Handles can be Finalized, which works differently for joinable and > detached threads: > a) Handles for detached threads are simply closed where applicable. > b) Joinable threads are joined before handles are closed. > 4. The destructor finalizes handles. No explicit call is needed. > > Fixed: webrtc:12727 > Change-Id: Id00a0464edf4fc9e552b6a1fbb5d2e1280e88811 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215075 > Commit-Queue: Markus Handell <handellm@webrtc.org> > Reviewed-by: Harald Alvestrand <hta@webrtc.org> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> > Reviewed-by: Tommi <tommi@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#33923} # Not skipping CQ checks because original CL landed > 1 day ago. TBR=handellm@webrtc.org Bug: webrtc:12727 Change-Id: Ic0146be8866f6dd3ad9c364fb8646650b8e07419 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217583 Reviewed-by: Guido Urdaneta <guidou@webrtc.org> Reviewed-by: Markus Handell <handellm@webrtc.org> Commit-Queue: Guido Urdaneta <guidou@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33936}
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
/*
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* Copyright (c) 2012 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_CAPTURE_MAIN_SOURCE_LINUX_VIDEO_CAPTURE_LINUX_H_
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#define MODULES_VIDEO_CAPTURE_MAIN_SOURCE_LINUX_VIDEO_CAPTURE_LINUX_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include "modules/video_capture/video_capture_defines.h"
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#include "modules/video_capture/video_capture_impl.h"
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#include "rtc_base/platform_thread.h"
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#include "rtc_base/synchronization/mutex.h"
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namespace webrtc {
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namespace videocapturemodule {
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class VideoCaptureModuleV4L2 : public VideoCaptureImpl {
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public:
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VideoCaptureModuleV4L2();
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~VideoCaptureModuleV4L2() override;
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int32_t Init(const char* deviceUniqueId);
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int32_t StartCapture(const VideoCaptureCapability& capability) override;
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int32_t StopCapture() override;
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bool CaptureStarted() override;
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int32_t CaptureSettings(VideoCaptureCapability& settings) override;
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private:
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enum { kNoOfV4L2Bufffers = 4 };
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static void CaptureThread(void*);
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bool CaptureProcess();
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bool AllocateVideoBuffers();
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bool DeAllocateVideoBuffers();
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// TODO(pbos): Stop using unique_ptr and resetting the thread.
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std::unique_ptr<rtc::PlatformThread> _captureThread;
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Mutex capture_lock_;
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bool quit_ RTC_GUARDED_BY(capture_lock_);
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int32_t _deviceId;
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int32_t _deviceFd;
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int32_t _buffersAllocatedByDevice;
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int32_t _currentWidth;
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int32_t _currentHeight;
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int32_t _currentFrameRate;
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bool _captureStarted;
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VideoType _captureVideoType;
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struct Buffer {
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void* start;
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size_t length;
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};
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Buffer* _pool;
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};
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} // namespace videocapturemodule
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} // namespace webrtc
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#endif // MODULES_VIDEO_CAPTURE_MAIN_SOURCE_LINUX_VIDEO_CAPTURE_LINUX_H_
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