OLD | NEW |
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 // VideoCaptureDevice is the abstract base class for realizing video capture | 5 // VideoCaptureDevice is the abstract base class for realizing video capture |
6 // device support in Chromium. It provides the interface for OS dependent | 6 // device support in Chromium. It provides the interface for OS dependent |
7 // implementations. | 7 // implementations. |
8 // The class is created and functions are invoked on a thread owned by | 8 // The class is created and functions are invoked on a thread owned by |
9 // VideoCaptureManager. Capturing is done on other threads, depending on the OS | 9 // VideoCaptureManager. Capturing is done on other threads, depending on the OS |
10 // specific implementation. | 10 // specific implementation. |
(...skipping 185 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
196 }; | 196 }; |
197 | 197 |
198 virtual ~Client() {} | 198 virtual ~Client() {} |
199 | 199 |
200 // Captured a new video frame, data for which is pointed to by |data|. | 200 // Captured a new video frame, data for which is pointed to by |data|. |
201 // | 201 // |
202 // The format of the frame is described by |frame_format|, and is assumed to | 202 // The format of the frame is described by |frame_format|, and is assumed to |
203 // be tightly packed. This method will try to reserve an output buffer and | 203 // be tightly packed. This method will try to reserve an output buffer and |
204 // copy from |data| into the output buffer. If no output buffer is | 204 // copy from |data| into the output buffer. If no output buffer is |
205 // available, the frame will be silently dropped. | 205 // available, the frame will be silently dropped. |
206 virtual void OnIncomingCapturedData(const uint8* data, | 206 virtual void OnIncomingCapturedData(const uint8_t* data, |
207 int length, | 207 int length, |
208 const VideoCaptureFormat& frame_format, | 208 const VideoCaptureFormat& frame_format, |
209 int clockwise_rotation, | 209 int clockwise_rotation, |
210 const base::TimeTicks& timestamp) = 0; | 210 const base::TimeTicks& timestamp) = 0; |
211 | 211 |
212 // Captured a 3 planar YUV frame. Planes are possibly disjoint. | 212 // Captured a 3 planar YUV frame. Planes are possibly disjoint. |
213 // |frame_format| must indicate I420. | 213 // |frame_format| must indicate I420. |
214 virtual void OnIncomingCapturedYuvData( | 214 virtual void OnIncomingCapturedYuvData( |
215 const uint8* y_data, | 215 const uint8_t* y_data, |
216 const uint8* u_data, | 216 const uint8_t* u_data, |
217 const uint8* v_data, | 217 const uint8_t* v_data, |
218 size_t y_stride, | 218 size_t y_stride, |
219 size_t u_stride, | 219 size_t u_stride, |
220 size_t v_stride, | 220 size_t v_stride, |
221 const VideoCaptureFormat& frame_format, | 221 const VideoCaptureFormat& frame_format, |
222 int clockwise_rotation, | 222 int clockwise_rotation, |
223 const base::TimeTicks& timestamp) = 0; | 223 const base::TimeTicks& timestamp) = 0; |
224 | 224 |
225 // Reserve an output buffer into which contents can be captured directly. | 225 // Reserve an output buffer into which contents can be captured directly. |
226 // The returned Buffer will always be allocated with a memory size suitable | 226 // The returned Buffer will always be allocated with a memory size suitable |
227 // for holding a packed video frame with pixels of |format| format, of | 227 // for holding a packed video frame with pixels of |format| format, of |
(...skipping 65 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
293 | 293 |
294 private: | 294 private: |
295 // Gets the power line frequency from the current system time zone if this is | 295 // Gets the power line frequency from the current system time zone if this is |
296 // defined, otherwise returns 0. | 296 // defined, otherwise returns 0. |
297 PowerLineFrequency GetPowerLineFrequencyForLocation() const; | 297 PowerLineFrequency GetPowerLineFrequencyForLocation() const; |
298 }; | 298 }; |
299 | 299 |
300 } // namespace media | 300 } // namespace media |
301 | 301 |
302 #endif // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_ | 302 #endif // MEDIA_VIDEO_CAPTURE_VIDEO_CAPTURE_DEVICE_H_ |
OLD | NEW |