rhubarb-lip-sync/lib/webrtc-8d2248ff/webrtc/sdk/objc/Framework/Classes/RTCVideoFrame.mm

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/*
* Copyright 2015 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.
*/
#import "RTCVideoFrame+Private.h"
#include <memory>
@implementation RTCVideoFrame {
std::unique_ptr<cricket::VideoFrame> _videoFrame;
rtc::scoped_refptr<webrtc::VideoFrameBuffer> _i420Buffer;
}
- (size_t)width {
return _videoFrame->width();
}
- (size_t)height {
return _videoFrame->height();
}
// TODO(nisse): chromaWidth and chromaHeight are used only in
// RTCOpenGLVideoRenderer.mm. Update, and then delete these
// properties.
- (size_t)chromaWidth {
return (self.width + 1) / 2;
}
- (size_t)chromaHeight {
return (self.height + 1) / 2;
}
- (const uint8_t *)yPlane {
if (!self.i420Buffer) {
return nullptr;
}
return self.i420Buffer->DataY();
}
- (const uint8_t *)uPlane {
if (!self.i420Buffer) {
return nullptr;
}
return self.i420Buffer->DataU();
}
- (const uint8_t *)vPlane {
if (!self.i420Buffer) {
return nullptr;
}
return self.i420Buffer->DataV();
}
- (int32_t)yPitch {
if (!self.i420Buffer) {
return 0;
}
return self.i420Buffer->StrideY();
}
- (int32_t)uPitch {
if (!self.i420Buffer) {
return 0;
}
return self.i420Buffer->StrideU();
}
- (int32_t)vPitch {
if (!self.i420Buffer) {
return 0;
}
return self.i420Buffer->StrideV();
}
- (int64_t)timeStamp {
return _videoFrame->GetTimeStamp();
}
- (CVPixelBufferRef)nativeHandle {
return static_cast<CVPixelBufferRef>(
_videoFrame->video_frame_buffer()->native_handle());
}
- (void)convertBufferIfNeeded {
if (!_i420Buffer) {
if (_videoFrame->video_frame_buffer()->native_handle()) {
// Convert to I420.
_i420Buffer = _videoFrame->video_frame_buffer()->NativeToI420Buffer();
} else {
// Should already be I420.
_i420Buffer = _videoFrame->video_frame_buffer();
}
}
}
#pragma mark - Private
- (instancetype)initWithNativeFrame:(const cricket::VideoFrame *)nativeFrame {
if (self = [super init]) {
// Keep a shallow copy of the video frame. The underlying frame buffer is
// not copied.
_videoFrame.reset(nativeFrame->Copy());
}
return self;
}
- (rtc::scoped_refptr<webrtc::VideoFrameBuffer>)i420Buffer {
[self convertBufferIfNeeded];
return _i420Buffer;
}
@end