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1 /* | 1 /* |
2 * Copyright (c) 2004 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2004 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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81 | 81 |
82 // Make a shallow copy of the frame. The frame buffer itself is not copied. | 82 // Make a shallow copy of the frame. The frame buffer itself is not copied. |
83 // Both the current and new VideoFrame will share a single reference-counted | 83 // Both the current and new VideoFrame will share a single reference-counted |
84 // frame buffer. | 84 // frame buffer. |
85 virtual VideoFrame *Copy() const = 0; | 85 virtual VideoFrame *Copy() const = 0; |
86 | 86 |
87 // Since VideoFrame supports shallow copy and the internal frame buffer might | 87 // Since VideoFrame supports shallow copy and the internal frame buffer might |
88 // be shared, this function can be used to check exclusive ownership. | 88 // be shared, this function can be used to check exclusive ownership. |
89 virtual bool IsExclusive() const = 0; | 89 virtual bool IsExclusive() const = 0; |
90 | 90 |
91 // In case VideoFrame needs exclusive access of the frame buffer, user can | |
92 // call MakeExclusive() to make sure the frame buffer is exclusively | |
93 // accessible to the current object. This might mean a deep copy of the frame | |
94 // buffer if it is currently shared by other objects. | |
95 virtual bool MakeExclusive() = 0; | |
96 | |
97 // Writes the frame into the target VideoFrame. | |
98 virtual void CopyToFrame(VideoFrame* target) const; | |
99 | |
100 // Return a copy of frame which has its pending rotation applied. The | 91 // Return a copy of frame which has its pending rotation applied. The |
101 // ownership of the returned frame is held by this frame. | 92 // ownership of the returned frame is held by this frame. |
102 virtual const VideoFrame* GetCopyWithRotationApplied() const = 0; | 93 virtual const VideoFrame* GetCopyWithRotationApplied() const = 0; |
103 | 94 |
104 // Converts the I420 data to RGB of a certain type such as ARGB and ABGR. | 95 // Converts the I420 data to RGB of a certain type such as ARGB and ABGR. |
105 // Returns the frame's actual size, regardless of whether it was written or | 96 // Returns the frame's actual size, regardless of whether it was written or |
106 // not (like snprintf). Parameters size and stride_rgb are in units of bytes. | 97 // not (like snprintf). Parameters size and stride_rgb are in units of bytes. |
107 // If there is insufficient space, nothing is written. | 98 // If there is insufficient space, nothing is written. |
108 virtual size_t ConvertToRgbBuffer(uint32_t to_fourcc, | 99 virtual size_t ConvertToRgbBuffer(uint32_t to_fourcc, |
109 uint8_t* buffer, | 100 uint8_t* buffer, |
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163 | 154 |
164 // Creates an empty frame. | 155 // Creates an empty frame. |
165 virtual VideoFrame *CreateEmptyFrame(int w, int h, | 156 virtual VideoFrame *CreateEmptyFrame(int w, int h, |
166 int64_t time_stamp) const = 0; | 157 int64_t time_stamp) const = 0; |
167 virtual void SetRotation(webrtc::VideoRotation rotation) = 0; | 158 virtual void SetRotation(webrtc::VideoRotation rotation) = 0; |
168 }; | 159 }; |
169 | 160 |
170 } // namespace cricket | 161 } // namespace cricket |
171 | 162 |
172 #endif // WEBRTC_MEDIA_BASE_VIDEOFRAME_H_ | 163 #endif // WEBRTC_MEDIA_BASE_VIDEOFRAME_H_ |
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