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/*
* Copyright 2017 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.
*/
#include "sdk/objc/native/src/objc_frame_buffer.h"
#include "api/make_ref_counted.h"
#import "base/RTCVideoFrameBuffer.h"
#import "sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer+Private.h"
namespace webrtc {
namespace {
/** ObjCFrameBuffer that conforms to I420BufferInterface by wrapping RTC_OBJC_TYPE(RTCI420Buffer) */
class ObjCI420FrameBuffer : public I420BufferInterface {
public:
explicit ObjCI420FrameBuffer(id<RTC_OBJC_TYPE(RTCI420Buffer)> frame_buffer)
: frame_buffer_(frame_buffer), width_(frame_buffer.width), height_(frame_buffer.height) {}
~ObjCI420FrameBuffer() override {}
int width() const override { return width_; }
int height() const override { return height_; }
const uint8_t* DataY() const override { return frame_buffer_.dataY; }
const uint8_t* DataU() const override { return frame_buffer_.dataU; }
const uint8_t* DataV() const override { return frame_buffer_.dataV; }
int StrideY() const override { return frame_buffer_.strideY; }
int StrideU() const override { return frame_buffer_.strideU; }
int StrideV() const override { return frame_buffer_.strideV; }
private:
id<RTC_OBJC_TYPE(RTCI420Buffer)> frame_buffer_;
int width_;
int height_;
};
} // namespace
ObjCFrameBuffer::ObjCFrameBuffer(id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> frame_buffer)
: frame_buffer_(frame_buffer), width_(frame_buffer.width), height_(frame_buffer.height) {}
ObjCFrameBuffer::~ObjCFrameBuffer() {}
VideoFrameBuffer::Type ObjCFrameBuffer::type() const {
return Type::kNative;
}
int ObjCFrameBuffer::width() const {
return width_;
}
int ObjCFrameBuffer::height() const {
return height_;
}
rtc::scoped_refptr<I420BufferInterface> ObjCFrameBuffer::ToI420() {
return rtc::make_ref_counted<ObjCI420FrameBuffer>([frame_buffer_ toI420]);
}
rtc::scoped_refptr<VideoFrameBuffer> ObjCFrameBuffer::CropAndScale(int offset_x,
int offset_y,
int crop_width,
int crop_height,
int scaled_width,
int scaled_height) {
if ([frame_buffer_ respondsToSelector:@selector
(cropAndScaleWith:offsetY:cropWidth:cropHeight:scaleWidth:scaleHeight:)]) {
return rtc::make_ref_counted<ObjCFrameBuffer>([frame_buffer_ cropAndScaleWith:offset_x
offsetY:offset_y
cropWidth:crop_width
cropHeight:crop_height
scaleWidth:scaled_width
scaleHeight:scaled_height]);
}
// Use the default implementation.
return VideoFrameBuffer::CropAndScale(
offset_x, offset_y, crop_width, crop_height, scaled_width, scaled_height);
}
id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> ObjCFrameBuffer::wrapped_frame_buffer() const {
return frame_buffer_;
}
id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> ToObjCVideoFrameBuffer(
const rtc::scoped_refptr<VideoFrameBuffer>& buffer) {
if (buffer->type() == VideoFrameBuffer::Type::kNative) {
return static_cast<ObjCFrameBuffer*>(buffer.get())->wrapped_frame_buffer();
} else {
return [[RTC_OBJC_TYPE(RTCI420Buffer) alloc] initWithFrameBuffer:buffer->ToI420()];
}
}
} // namespace webrtc
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