LibWebRTCCodecsProxy.mm [plain text]
/*
* Copyright (C) 2020 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. 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. OR 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.
*/
#include "config.h"
#include "LibWebRTCCodecsProxy.h"
#if USE(LIBWEBRTC) && PLATFORM(COCOA) && ENABLE(GPU_PROCESS)
#include "DataReference.h"
#include "GPUConnectionToWebProcess.h"
#include "LibWebRTCCodecsMessages.h"
#include "WebCoreArgumentCoders.h"
#include <WebCore/LibWebRTCMacros.h>
#include <WebCore/RemoteVideoSample.h>
#include <webrtc/sdk/WebKit/WebKitUtilities.h>
#include <wtf/MediaTime.h>
namespace WebKit {
LibWebRTCCodecsProxy::LibWebRTCCodecsProxy(GPUConnectionToWebProcess& connection)
: m_gpuConnectionToWebProcess(connection)
{
}
LibWebRTCCodecsProxy::~LibWebRTCCodecsProxy()
{
for (auto decoder : m_decoders.values())
webrtc::releaseLocalDecoder(decoder);
}
void LibWebRTCCodecsProxy::createDecoder(RTCDecoderIdentifier identifier)
{
ASSERT(!m_decoders.contains(identifier));
m_decoders.add(identifier, webrtc::createLocalDecoder(^(CVPixelBufferRef pixelBuffer, uint32_t timeStampNs, uint32_t timeStamp) {
if (auto sample = WebCore::RemoteVideoSample::create(pixelBuffer, MediaTime(timeStampNs, 1)))
m_gpuConnectionToWebProcess.connection().send(Messages::LibWebRTCCodecs::CompletedDecoding { identifier, timeStamp, *sample }, 0);
}));
}
void LibWebRTCCodecsProxy::releaseDecoder(RTCDecoderIdentifier identifier)
{
ASSERT(m_decoders.contains(identifier));
if (auto decoder = m_decoders.take(identifier))
webrtc::releaseLocalDecoder(decoder);
}
void LibWebRTCCodecsProxy::decodeFrame(RTCDecoderIdentifier identifier, uint32_t timeStamp, const IPC::DataReference& data)
{
ASSERT(m_decoders.contains(identifier));
auto decoder = m_decoders.get(identifier);
if (!decoder)
return;
if (webrtc::decodeFrame(decoder, timeStamp, data.data(), data.size()))
m_gpuConnectionToWebProcess.connection().send(Messages::LibWebRTCCodecs::FailedDecoding { identifier }, 0);
}
}
#endif