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Diffstat (limited to 'third_party/libwebrtc/modules/video_capture/linux/video_capture_v4l2.h')
-rw-r--r-- | third_party/libwebrtc/modules/video_capture/linux/video_capture_v4l2.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_capture/linux/video_capture_v4l2.h b/third_party/libwebrtc/modules/video_capture/linux/video_capture_v4l2.h new file mode 100644 index 0000000000..61358d0325 --- /dev/null +++ b/third_party/libwebrtc/modules/video_capture/linux/video_capture_v4l2.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef MODULES_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_V4L2_H_ +#define MODULES_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_V4L2_H_ + +#include <stddef.h> +#include <stdint.h> + +#include <memory> + +#include "modules/video_capture/video_capture_defines.h" +#include "modules/video_capture/video_capture_impl.h" +#include "rtc_base/platform_thread.h" +#include "rtc_base/synchronization/mutex.h" + +namespace webrtc { +namespace videocapturemodule { +class VideoCaptureModuleV4L2 : public VideoCaptureImpl { + public: + VideoCaptureModuleV4L2(); + ~VideoCaptureModuleV4L2() override; + int32_t Init(const char* deviceUniqueId); + int32_t StartCapture(const VideoCaptureCapability& capability) override; + int32_t StopCapture() override; + bool CaptureStarted() override; + int32_t CaptureSettings(VideoCaptureCapability& settings) override; + + private: + enum { kNoOfV4L2Bufffers = 4 }; + + static void CaptureThread(void*); + bool CaptureProcess(); + bool AllocateVideoBuffers() RTC_EXCLUSIVE_LOCKS_REQUIRED(capture_lock_); + bool DeAllocateVideoBuffers() RTC_EXCLUSIVE_LOCKS_REQUIRED(capture_lock_); + + rtc::PlatformThread _captureThread RTC_GUARDED_BY(api_checker_); + Mutex capture_lock_ RTC_ACQUIRED_BEFORE(api_lock_); + bool quit_ RTC_GUARDED_BY(capture_lock_); + int32_t _deviceId RTC_GUARDED_BY(api_checker_); + int32_t _deviceFd; + + int32_t _buffersAllocatedByDevice RTC_GUARDED_BY(capture_lock_); + VideoCaptureCapability configured_capability_; + bool _captureStarted; + struct Buffer { + void* start; + size_t length; + }; + Buffer* _pool RTC_GUARDED_BY(capture_lock_); +}; +} // namespace videocapturemodule +} // namespace webrtc + +#endif // MODULES_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_V4L2_H_ |