| /* |
| * Copyright 2016 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEO_COREVIDEO_FRAME_BUFFER_H_ |
| #define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEO_COREVIDEO_FRAME_BUFFER_H_ |
| |
| #include <CoreVideo/CoreVideo.h> |
| |
| #include <vector> |
| |
| #include "webrtc/common_video/include/video_frame_buffer.h" |
| |
| namespace webrtc { |
| |
| class CoreVideoFrameBuffer : public VideoFrameBuffer { |
| public: |
| explicit CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer); |
| CoreVideoFrameBuffer(CVPixelBufferRef pixel_buffer, |
| int adapted_width, |
| int adapted_height, |
| int crop_width, |
| int crop_height, |
| int crop_x, |
| int crop_y); |
| ~CoreVideoFrameBuffer() override; |
| |
| CVPixelBufferRef pixel_buffer() { return pixel_buffer_; } |
| |
| // Returns true if the internal pixel buffer needs to be cropped. |
| bool RequiresCropping() const; |
| // Crop and scales the internal pixel buffer to the output pixel buffer. The |
| // tmp buffer is used for intermediary splitting the UV channels. This |
| // function returns true if successful. |
| bool CropAndScaleTo(std::vector<uint8_t>* tmp_buffer, |
| CVPixelBufferRef output_pixel_buffer) const; |
| |
| private: |
| Type type() const override; |
| int width() const override; |
| int height() const override; |
| rtc::scoped_refptr<I420BufferInterface> ToI420() override; |
| |
| CVPixelBufferRef pixel_buffer_; |
| // buffer_width/height is the actual pixel buffer resolution. The |
| // width_/height_ is the resolution we will scale to in ToI420(). Cropping |
| // happens before scaling, so: buffer_width >= crop_width >= width(). |
| const int width_; |
| const int height_; |
| const int buffer_width_; |
| const int buffer_height_; |
| const int crop_width_; |
| const int crop_height_; |
| const int crop_x_; |
| const int crop_y_; |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_VIDEO_COREVIDEO_FRAME_BUFFER_H_ |