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3ff50fba59
This can be used to wrap Objective-C components in C++ classes, so users can use the WebRTC C++ API directly together with the iOS specific components provided by our SDK. Bug: webrtc:8832 Change-Id: I6d34f7ec62d51df8d3a5340a2e17d30ae73e13e8 Reviewed-on: https://webrtc-review.googlesource.com/46162 Commit-Queue: Anders Carlsson <andersc@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21850}
117 lines
4.2 KiB
Text
117 lines
4.2 KiB
Text
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "RTCVideoFrame+Private.h"
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#import "WebRTC/RTCVideoFrame.h"
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#import "WebRTC/RTCVideoFrameBuffer.h"
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#include "api/video/video_frame.h"
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#include "rtc_base/timeutils.h"
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#include "sdk/objc/Framework/Native/api/video_frame_buffer.h"
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#include "sdk/objc/Framework/Native/src/objc_frame_buffer.h"
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id<RTCVideoFrameBuffer> nativeToRtcFrameBuffer(
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const rtc::scoped_refptr<webrtc::VideoFrameBuffer> &buffer) {
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return buffer->type() == webrtc::VideoFrameBuffer::Type::kNative ?
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static_cast<webrtc::ObjCFrameBuffer *>(buffer.get())->wrapped_frame_buffer() :
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[[RTCI420Buffer alloc] initWithFrameBuffer:buffer->ToI420()];
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}
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@implementation RTCVideoFrame {
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RTCVideoRotation _rotation;
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int64_t _timeStampNs;
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}
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@synthesize buffer = _buffer;
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@synthesize timeStamp;
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- (int)width {
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return _buffer.width;
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}
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- (int)height {
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return _buffer.height;
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}
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- (RTCVideoRotation)rotation {
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return _rotation;
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}
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- (int64_t)timeStampNs {
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return _timeStampNs;
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}
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- (RTCVideoFrame *)newI420VideoFrame {
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return [[RTCVideoFrame alloc] initWithBuffer:[_buffer toI420]
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rotation:_rotation
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timeStampNs:_timeStampNs];
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}
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- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
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rotation:(RTCVideoRotation)rotation
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timeStampNs:(int64_t)timeStampNs {
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return [self initWithBuffer:[[RTCCVPixelBuffer alloc] initWithPixelBuffer:pixelBuffer]
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rotation:rotation
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timeStampNs:timeStampNs];
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}
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- (instancetype)initWithPixelBuffer:(CVPixelBufferRef)pixelBuffer
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scaledWidth:(int)scaledWidth
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scaledHeight:(int)scaledHeight
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cropWidth:(int)cropWidth
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cropHeight:(int)cropHeight
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cropX:(int)cropX
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cropY:(int)cropY
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rotation:(RTCVideoRotation)rotation
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timeStampNs:(int64_t)timeStampNs {
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RTCCVPixelBuffer *rtcPixelBuffer = [[RTCCVPixelBuffer alloc] initWithPixelBuffer:pixelBuffer
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adaptedWidth:scaledWidth
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adaptedHeight:scaledHeight
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cropWidth:cropWidth
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cropHeight:cropHeight
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cropX:cropX
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cropY:cropY];
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return [self initWithBuffer:rtcPixelBuffer rotation:rotation timeStampNs:timeStampNs];
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}
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- (instancetype)initWithBuffer:(id<RTCVideoFrameBuffer>)buffer
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rotation:(RTCVideoRotation)rotation
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timeStampNs:(int64_t)timeStampNs {
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if (self = [super init]) {
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_buffer = buffer;
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_rotation = rotation;
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_timeStampNs = timeStampNs;
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}
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return self;
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}
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- (instancetype)initWithNativeVideoFrame:(const webrtc::VideoFrame &)frame {
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if (self = [self initWithBuffer:nativeToRtcFrameBuffer(frame.video_frame_buffer())
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rotation:RTCVideoRotation(frame.rotation())
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timeStampNs:frame.timestamp_us() * rtc::kNumNanosecsPerMicrosec]) {
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self.timeStamp = frame.timestamp();
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}
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return self;
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}
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- (webrtc::VideoFrame)nativeVideoFrame {
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rtc::scoped_refptr<webrtc::VideoFrameBuffer> frameBuffer =
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webrtc::ObjCToNativeVideoFrameBuffer(self.buffer);
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webrtc::VideoFrame videoFrame(frameBuffer,
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(webrtc::VideoRotation)self.rotation,
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self.timeStampNs / rtc::kNumNanosecsPerMicrosec);
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videoFrame.set_timestamp(self.timeStamp);
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return videoFrame;
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}
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@end
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