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/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are 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. ``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. OR
* 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.
*/
#include "config.h"
#include "RemoteVideoSample.h"
#if ENABLE(MEDIA_STREAM) && PLATFORM(COCOA)
#include "GraphicsContextCG.h"
#include "IOSurface.h"
#include "Logging.h"
#include "MediaSampleAVFObjC.h"
#include "VideoFrameCV.h"
#if USE(ACCELERATE)
#include <Accelerate/Accelerate.h>
#endif
#include <pal/cf/CoreMediaSoftLink.h>
#include "CoreVideoSoftLink.h"
namespace WebCore {
static inline std::unique_ptr<IOSurface> transferBGRAPixelBufferToIOSurface(CVPixelBufferRef pixelBuffer)
{
#if USE(ACCELERATE)
ASSERT(CVPixelBufferGetPixelFormatType(pixelBuffer) == kCVPixelFormatType_32BGRA);
auto result = CVPixelBufferLockBaseAddress(pixelBuffer, kCVPixelBufferLock_ReadOnly);
ASSERT(result == kCVReturnSuccess);
if (result != kCVReturnSuccess) {
RELEASE_LOG_ERROR(Media, "transferBGRAPixelBufferToIOSurface CVPixelBufferLockBaseAddress() returned error code %d", result);
return nullptr;
}
IntSize size { static_cast<int>(CVPixelBufferGetWidth(pixelBuffer)), static_cast<int>(CVPixelBufferGetHeight(pixelBuffer)) };
auto ioSurface = IOSurface::create(size, DestinationColorSpace::SRGB(), IOSurface::Format::BGRA);
IOSurface::Locker lock(*ioSurface);
vImage_Buffer src;
src.width = size.width();
src.height = size.height();
src.rowBytes = CVPixelBufferGetBytesPerRow(pixelBuffer);
src.data = CVPixelBufferGetBaseAddress(pixelBuffer);
vImage_Buffer dest;
dest.width = size.width();
dest.height = size.height();
dest.rowBytes = ioSurface->bytesPerRow();
dest.data = lock.surfaceBaseAddress();
vImageUnpremultiplyData_BGRA8888(&src, &dest, kvImageNoFlags);
result = CVPixelBufferUnlockBaseAddress(pixelBuffer, kCVPixelBufferLock_ReadOnly);
ASSERT(result == kCVReturnSuccess);
if (result != kCVReturnSuccess) {
RELEASE_LOG_ERROR(Media, "transferBGRAPixelBufferToIOSurface CVPixelBufferUnlockBaseAddress() returned error code %d", result);
return nullptr;
}
return ioSurface;
#else
RELEASE_LOG_ERROR(Media, "transferBGRAPixelBufferToIOSurface cannot convert to IOSurface");
return nullptr;
#endif
}
std::unique_ptr<RemoteVideoSample> RemoteVideoSample::create(MediaSample& sample, ShouldCheckForIOSurface shouldCheckForIOSurface)
{
RetainPtr<CVPixelBufferRef> imageBuffer;
if (is<MediaSampleAVFObjC>(sample))
imageBuffer = downcast<MediaSampleAVFObjC>(sample).pixelBuffer();
else if (is<VideoFrameCV>(sample))
imageBuffer = downcast<VideoFrameCV>(sample).pixelBuffer();
else {
RELEASE_LOG_ERROR(Media, "RemoteVideoSample::create: cannot obtain CVPixelBuffer from sample. Unknown sample type.");
return nullptr;
}
if (!imageBuffer) {
RELEASE_LOG_ERROR(Media, "RemoteVideoSample::create: cannot obtain CVPixelBuffer from sample. No buffer.");
return nullptr;
}
std::unique_ptr<IOSurface> ioSurface;
auto surface = CVPixelBufferGetIOSurface(imageBuffer.get());
if (!surface && shouldCheckForIOSurface == ShouldCheckForIOSurface::Yes) {
// Special case for canvas data that is RGBA, not IOSurface backed.
auto pixelFormatType = CVPixelBufferGetPixelFormatType(imageBuffer.get());
if (pixelFormatType != kCVPixelFormatType_32BGRA) {
RELEASE_LOG_ERROR(Media, "RemoteVideoSample::create does not support non IOSurface backed samples that are not BGRA");
return nullptr;
}
ioSurface = transferBGRAPixelBufferToIOSurface(imageBuffer.get());
if (!ioSurface)
return nullptr;
surface = ioSurface->surface();
}
return std::unique_ptr<RemoteVideoSample>(new RemoteVideoSample(surface, WTFMove(imageBuffer), DestinationColorSpace::SRGB(), sample.presentationTime(), sample.videoRotation(), sample.videoMirrored()));
}
std::unique_ptr<RemoteVideoSample> RemoteVideoSample::create(RetainPtr<CVPixelBufferRef>&& imageBuffer, MediaTime&& presentationTime, MediaSample::VideoRotation rotation, ShouldCheckForIOSurface shouldCheckForIOSurface)
{
auto surface = CVPixelBufferGetIOSurface(imageBuffer.get());
if (!surface && shouldCheckForIOSurface == ShouldCheckForIOSurface::Yes) {
RELEASE_LOG_ERROR(Media, "RemoteVideoSample::create: CVPixelBufferGetIOSurface returned nullptr");
return nullptr;
}
return std::unique_ptr<RemoteVideoSample>(new RemoteVideoSample(surface, WTFMove(imageBuffer), DestinationColorSpace::SRGB(), WTFMove(presentationTime), rotation, false));
}
RemoteVideoSample::RemoteVideoSample(IOSurfaceRef surface, RetainPtr<CVPixelBufferRef>&& imageBuffer, const DestinationColorSpace& colorSpace, MediaTime&& time, MediaSample::VideoRotation rotation, bool mirrored)
: m_ioSurface(WebCore::IOSurface::createFromSurface(surface, colorSpace))
, m_imageBuffer(WTFMove(imageBuffer))
, m_rotation(rotation)
, m_time(WTFMove(time))
, m_videoFormat(IOSurfaceGetPixelFormat(surface))
, m_size(IntSize(IOSurfaceGetWidth(surface), IOSurfaceGetHeight(surface)))
, m_mirrored(mirrored)
{
}
IOSurfaceRef RemoteVideoSample::surface() const
{
if (!m_ioSurface && m_sendRight)
const_cast<RemoteVideoSample*>(this)->m_ioSurface = WebCore::IOSurface::createFromSendRight(WTFMove(const_cast<RemoteVideoSample*>(this)->m_sendRight), DestinationColorSpace::SRGB());
return m_ioSurface ? m_ioSurface->surface() : nullptr;
}
}
#endif // ENABLE(MEDIA_STREAM) && PLATFORM(COCOA)
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