1 /* 2 * Copyright (c) 2022 The WebRTC project authors. All Rights Reserved. 3 * 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 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef API_VIDEO_I210_BUFFER_H_ 12 #define API_VIDEO_I210_BUFFER_H_ 13 14 #include <stdint.h> 15 16 #include <memory> 17 18 #include "api/scoped_refptr.h" 19 #include "api/video/video_frame_buffer.h" 20 #include "api/video/video_rotation.h" 21 #include "rtc_base/memory/aligned_malloc.h" 22 23 namespace webrtc { 24 25 // Plain I210 (yuv 422 planar 10 bits) buffer in standard memory. 26 class I210Buffer : public I210BufferInterface { 27 public: 28 // Create a new buffer. 29 static rtc::scoped_refptr<I210Buffer> Create(int width, int height); 30 31 // Create a new buffer and copy the pixel data. 32 static rtc::scoped_refptr<I210Buffer> Copy(const I210BufferInterface& buffer); 33 34 // Convert and put I420 buffer into a new buffer. 35 static rtc::scoped_refptr<I210Buffer> Copy(const I420BufferInterface& buffer); 36 37 // Return a rotated copy of `src`. 38 static rtc::scoped_refptr<I210Buffer> Rotate(const I210BufferInterface& src, 39 VideoRotation rotation); 40 41 // VideoFrameBuffer implementation. 42 rtc::scoped_refptr<I420BufferInterface> ToI420() override; 43 44 // PlanarYuv16BBuffer implementation. 45 int width() const override; 46 int height() const override; 47 const uint16_t* DataY() const override; 48 const uint16_t* DataU() const override; 49 const uint16_t* DataV() const override; 50 int StrideY() const override; 51 int StrideU() const override; 52 int StrideV() const override; 53 54 uint16_t* MutableDataY(); 55 uint16_t* MutableDataU(); 56 uint16_t* MutableDataV(); 57 58 // Scale the cropped area of `src` to the size of `this` buffer, and 59 // write the result into `this`. 60 void CropAndScaleFrom(const I210BufferInterface& src, 61 int offset_x, 62 int offset_y, 63 int crop_width, 64 int crop_height); 65 66 // Scale all of `src` to the size of `this` buffer, with no cropping. 67 void ScaleFrom(const I210BufferInterface& src); 68 69 protected: 70 I210Buffer(int width, int height, int stride_y, int stride_u, int stride_v); 71 ~I210Buffer() override; 72 73 private: 74 const int width_; 75 const int height_; 76 const int stride_y_; 77 const int stride_u_; 78 const int stride_v_; 79 const std::unique_ptr<uint16_t, AlignedFreeDeleter> data_; 80 }; 81 82 } // namespace webrtc 83 84 #endif // API_VIDEO_I210_BUFFER_H_ 85