| /* |
| * Copyright 2018 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 "ARDExternalSampleCapturer.h" |
| |
| #import <WebRTC/RTCCVPixelBuffer.h> |
| #import <WebRTC/RTCVideoFrameBuffer.h> |
| |
| @implementation ARDExternalSampleCapturer |
| |
| - (instancetype)initWithDelegate:(__weak id<RTCVideoCapturerDelegate>)delegate { |
| return [super initWithDelegate:delegate]; |
| } |
| |
| #pragma mark - ARDExternalSampleDelegate |
| |
| - (void)didCaptureSampleBuffer:(CMSampleBufferRef)sampleBuffer { |
| if (CMSampleBufferGetNumSamples(sampleBuffer) != 1 || !CMSampleBufferIsValid(sampleBuffer) || |
| !CMSampleBufferDataIsReady(sampleBuffer)) { |
| return; |
| } |
| |
| CVPixelBufferRef pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer); |
| if (pixelBuffer == nil) { |
| return; |
| } |
| |
| RTCCVPixelBuffer *rtcPixelBuffer = [[RTCCVPixelBuffer alloc] initWithPixelBuffer:pixelBuffer]; |
| int64_t timeStampNs = |
| CMTimeGetSeconds(CMSampleBufferGetPresentationTimeStamp(sampleBuffer)) * NSEC_PER_SEC; |
| RTCVideoFrame *videoFrame = [[RTCVideoFrame alloc] initWithBuffer:rtcPixelBuffer |
| rotation:RTCVideoRotation_0 |
| timeStampNs:timeStampNs]; |
| [self.delegate capturer:self didCaptureVideoFrame:videoFrame]; |
| } |
| |
| @end |
