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1/*
2 *  Copyright 2017 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#include "sdk/objc/native/src/objc_frame_buffer.h"
12
13#import "base/RTCVideoFrameBuffer.h"
14#import "sdk/objc/api/video_frame_buffer/RTCNativeI420Buffer+Private.h"
15
16namespace webrtc {
17
18namespace {
19
20/** ObjCFrameBuffer that conforms to I420BufferInterface by wrapping RTC_OBJC_TYPE(RTCI420Buffer) */
21class ObjCI420FrameBuffer : public I420BufferInterface {
22 public:
23  explicit ObjCI420FrameBuffer(id<RTC_OBJC_TYPE(RTCI420Buffer)> frame_buffer)
24      : frame_buffer_(frame_buffer), width_(frame_buffer.width), height_(frame_buffer.height) {}
25  ~ObjCI420FrameBuffer() override {}
26
27  int width() const override { return width_; }
28
29  int height() const override { return height_; }
30
31  const uint8_t* DataY() const override { return frame_buffer_.dataY; }
32
33  const uint8_t* DataU() const override { return frame_buffer_.dataU; }
34
35  const uint8_t* DataV() const override { return frame_buffer_.dataV; }
36
37  int StrideY() const override { return frame_buffer_.strideY; }
38
39  int StrideU() const override { return frame_buffer_.strideU; }
40
41  int StrideV() const override { return frame_buffer_.strideV; }
42
43 private:
44  id<RTC_OBJC_TYPE(RTCI420Buffer)> frame_buffer_;
45  int width_;
46  int height_;
47};
48
49}  // namespace
50
51ObjCFrameBuffer::ObjCFrameBuffer(id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> frame_buffer)
52    : frame_buffer_(frame_buffer), width_(frame_buffer.width), height_(frame_buffer.height) {}
53
54ObjCFrameBuffer::~ObjCFrameBuffer() {}
55
56VideoFrameBuffer::Type ObjCFrameBuffer::type() const {
57  return Type::kNative;
58}
59
60int ObjCFrameBuffer::width() const {
61  return width_;
62}
63
64int ObjCFrameBuffer::height() const {
65  return height_;
66}
67
68rtc::scoped_refptr<I420BufferInterface> ObjCFrameBuffer::ToI420() {
69  rtc::scoped_refptr<I420BufferInterface> buffer =
70      new rtc::RefCountedObject<ObjCI420FrameBuffer>([frame_buffer_ toI420]);
71
72  return buffer;
73}
74
75id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> ObjCFrameBuffer::wrapped_frame_buffer() const {
76  return frame_buffer_;
77}
78
79id<RTC_OBJC_TYPE(RTCVideoFrameBuffer)> ToObjCVideoFrameBuffer(
80    const rtc::scoped_refptr<VideoFrameBuffer>& buffer) {
81  if (buffer->type() == VideoFrameBuffer::Type::kNative) {
82    return static_cast<ObjCFrameBuffer*>(buffer.get())->wrapped_frame_buffer();
83  } else {
84    return [[RTC_OBJC_TYPE(RTCI420Buffer) alloc] initWithFrameBuffer:buffer->ToI420()];
85  }
86}
87
88}  // namespace webrtc
89