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| 1 /* | 1 /* |
| 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
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| 31 | 31 |
| 32 // Interface of a simple frame buffer containing pixel data. This interface does | 32 // Interface of a simple frame buffer containing pixel data. This interface does |
| 33 // not contain any frame metadata such as rotation, timestamp, pixel_width, etc. | 33 // not contain any frame metadata such as rotation, timestamp, pixel_width, etc. |
| 34 class VideoFrameBuffer : public rtc::RefCountInterface { | 34 class VideoFrameBuffer : public rtc::RefCountInterface { |
| 35 public: | 35 public: |
| 36 // The resolution of the frame in pixels. For formats where some planes are | 36 // The resolution of the frame in pixels. For formats where some planes are |
| 37 // subsampled, this is the highest-resolution plane. | 37 // subsampled, this is the highest-resolution plane. |
| 38 virtual int width() const = 0; | 38 virtual int width() const = 0; |
| 39 virtual int height() const = 0; | 39 virtual int height() const = 0; |
| 40 | 40 |
| 41 // TODO(nisse): For the transition, we use default implementations | |
| 42 // of the stride and data methods where the new methods calls the | |
| 43 // old method, and the old method calls the new methods. Subclasses | |
| 44 // must override either the new methods or the old method, to break | |
| 45 // infinite recursion. And similarly for the strides. When | |
| 46 // applications, in particular Chrome, are updated, delete the old | |
| 47 // method and delete the default implementation of the new methods. | |
| 48 | |
| 49 // Returns pointer to the pixel data for a given plane. The memory is owned by | 41 // Returns pointer to the pixel data for a given plane. The memory is owned by |
| 50 // the VideoFrameBuffer object and must not be freed by the caller. | 42 // the VideoFrameBuffer object and must not be freed by the caller. |
| 51 virtual const uint8_t* DataY() const; | 43 virtual const uint8_t* DataY() const = 0; |
| 52 virtual const uint8_t* DataU() const; | 44 virtual const uint8_t* DataU() const = 0; |
| 53 virtual const uint8_t* DataV() const; | 45 virtual const uint8_t* DataV() const = 0; |
| 54 // Deprecated method. | |
| 55 // TODO(nisse): Delete after all users are updated. | |
| 56 virtual const uint8_t* data(PlaneType type) const; | |
| 57 | 46 |
| 58 // TODO(nisse): Move MutableData methods to the I420Buffer subclass. | 47 // TODO(nisse): Move MutableData methods to the I420Buffer subclass. |
| 59 // Non-const data access. | 48 // Non-const data access. |
| 60 virtual uint8_t* MutableDataY(); | 49 virtual uint8_t* MutableDataY(); |
| 61 virtual uint8_t* MutableDataU(); | 50 virtual uint8_t* MutableDataU(); |
| 62 virtual uint8_t* MutableDataV(); | 51 virtual uint8_t* MutableDataV(); |
| 63 // Deprecated method. TODO(nisse): Delete after all users are updated. | |
| 64 virtual uint8_t* MutableData(PlaneType type); | |
| 65 | 52 |
| 66 // Returns the number of bytes between successive rows for a given plane. | 53 // Returns the number of bytes between successive rows for a given plane. |
| 67 virtual int StrideY() const; | 54 virtual int StrideY() const = 0; |
| 68 virtual int StrideU() const; | 55 virtual int StrideU() const = 0; |
| 69 virtual int StrideV() const; | 56 virtual int StrideV() const = 0; |
| 70 // Deprecated method. TODO(nisse): Delete after all users are updated. | |
| 71 virtual int stride(PlaneType type) const; | |
| 72 | 57 |
| 73 // Return the handle of the underlying video frame. This is used when the | 58 // Return the handle of the underlying video frame. This is used when the |
| 74 // frame is backed by a texture. | 59 // frame is backed by a texture. |
| 75 virtual void* native_handle() const = 0; | 60 virtual void* native_handle() const = 0; |
| 76 | 61 |
| 77 // Returns a new memory-backed frame buffer converted from this buffer's | 62 // Returns a new memory-backed frame buffer converted from this buffer's |
| 78 // native handle. | 63 // native handle. |
| 79 virtual rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() = 0; | 64 virtual rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() = 0; |
| 80 | 65 |
| 81 protected: | 66 protected: |
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| 218 const uint8_t* const v_plane_; | 203 const uint8_t* const v_plane_; |
| 219 const int y_stride_; | 204 const int y_stride_; |
| 220 const int u_stride_; | 205 const int u_stride_; |
| 221 const int v_stride_; | 206 const int v_stride_; |
| 222 rtc::Callback0<void> no_longer_used_cb_; | 207 rtc::Callback0<void> no_longer_used_cb_; |
| 223 }; | 208 }; |
| 224 | 209 |
| 225 } // namespace webrtc | 210 } // namespace webrtc |
| 226 | 211 |
| 227 #endif // WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_ | 212 #endif // WEBRTC_COMMON_VIDEO_INCLUDE_VIDEO_FRAME_BUFFER_H_ |
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