| /* |
| * Copyright (C) 2018 Apple Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted, provided that the following conditions |
| * are required to be met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. AND ITS CONTRIBUTORS BE LIABLE FOR |
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import "config.h" |
| #import "RealtimeOutgoingVideoSourceCocoa.h" |
| |
| #if USE(LIBWEBRTC) |
| |
| #import "AffineTransform.h" |
| #import "ImageRotationSessionVT.h" |
| #import "Logging.h" |
| #import "MediaSample.h" |
| #import "PixelBufferConformerCV.h" |
| #import "RealtimeVideoUtilities.h" |
| #import <pal/cf/CoreMediaSoftLink.h> |
| #import "CoreVideoSoftLink.h" |
| #import "VideoToolboxSoftLink.h" |
| |
| namespace WebCore { |
| |
| RetainPtr<CVPixelBufferRef> RealtimeOutgoingVideoSourceCocoa::convertToYUV(CVPixelBufferRef pixelBuffer) |
| { |
| if (!pixelBuffer) |
| return nullptr; |
| |
| if (!m_pixelBufferConformer) |
| m_pixelBufferConformer = makeUnique<PixelBufferConformerCV>((__bridge CFDictionaryRef)@{ (__bridge NSString *)kCVPixelBufferPixelFormatTypeKey: @(preferedPixelBufferFormat()) }); |
| |
| return m_pixelBufferConformer->convert(pixelBuffer); |
| } |
| |
| static inline unsigned rotationToAngle(webrtc::VideoRotation rotation) |
| { |
| switch (rotation) { |
| case webrtc::kVideoRotation_0: |
| return 0; |
| case webrtc::kVideoRotation_90: |
| return 90; |
| case webrtc::kVideoRotation_180: |
| return 180; |
| case webrtc::kVideoRotation_270: |
| return 270; |
| } |
| } |
| |
| RetainPtr<CVPixelBufferRef> RealtimeOutgoingVideoSourceCocoa::rotatePixelBuffer(CVPixelBufferRef pixelBuffer, webrtc::VideoRotation rotation) |
| { |
| ASSERT(rotation); |
| if (!rotation) |
| return pixelBuffer; |
| |
| if (!m_rotationSession || rotation != m_currentRotationSessionAngle) { |
| IntSize size = { (int)CVPixelBufferGetWidth(pixelBuffer) , (int)CVPixelBufferGetHeight(pixelBuffer) }; |
| AffineTransform transform; |
| transform.rotate(rotationToAngle(rotation)); |
| m_rotationSession = makeUnique<ImageRotationSessionVT>(WTFMove(transform), size, CVPixelBufferGetPixelFormatType(pixelBuffer), ImageRotationSessionVT::IsCGImageCompatible::No); |
| } |
| |
| return m_rotationSession->rotate(pixelBuffer); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // USE(LIBWEBRTC) |