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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Linux specific implementation of VideoCaptureDevice. | 5 // Linux specific implementation of VideoCaptureDevice. |
| 6 // V4L2 is used for capturing. V4L2 does not provide its own thread for | 6 // V4L2 is used for capturing. V4L2 does not provide its own thread for |
| 7 // capturing so this implementation uses a Chromium thread for fetching frames | 7 // capturing so this implementation uses a Chromium thread for fetching frames |
| 8 // from V4L2. | 8 // from V4L2. |
| 9 | 9 |
| 10 #ifndef MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 10 #ifndef MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
| 11 #define MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 11 #define MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
| 12 | 12 |
| 13 #include <string> | 13 #include <string> |
| 14 | 14 |
| 15 #include "base/threading/thread.h" | 15 #include "base/threading/thread.h" |
| 16 #include "media/video/capture/video_capture_device.h" | 16 #include "media/video/capture/video_capture_device.h" |
| 17 #include "media/video/capture/video_capture_types.h" |
| 17 | 18 |
| 18 namespace media { | 19 namespace media { |
| 19 | 20 |
| 20 class VideoCaptureDeviceLinux : public VideoCaptureDevice { | 21 class VideoCaptureDeviceLinux : public VideoCaptureDevice { |
| 21 public: | 22 public: |
| 22 explicit VideoCaptureDeviceLinux(const Name& device_name); | 23 explicit VideoCaptureDeviceLinux(const Name& device_name); |
| 23 virtual ~VideoCaptureDeviceLinux(); | 24 virtual ~VideoCaptureDeviceLinux(); |
| 24 | 25 |
| 25 // VideoCaptureDevice implementation. | 26 // VideoCaptureDevice implementation. |
| 26 virtual void Allocate(int width, | 27 virtual void Allocate(int width, |
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| 69 base::Thread v4l2_thread_; // Thread used for reading data from the device. | 70 base::Thread v4l2_thread_; // Thread used for reading data from the device. |
| 70 Buffer* buffer_pool_; | 71 Buffer* buffer_pool_; |
| 71 int buffer_pool_size_; // Number of allocated buffers. | 72 int buffer_pool_size_; // Number of allocated buffers. |
| 72 | 73 |
| 73 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); | 74 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); |
| 74 }; | 75 }; |
| 75 | 76 |
| 76 } // namespace media | 77 } // namespace media |
| 77 | 78 |
| 78 #endif // MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 79 #endif // MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
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