| /* |
| * 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 "RemoteMediaRecorder.h" |
| |
| #if PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM) && HAVE(AVASSETWRITERDELEGATE) |
| |
| #include "SharedRingBufferStorage.h" |
| #include <WebCore/CARingBuffer.h> |
| #include <WebCore/ImageTransferSessionVT.h> |
| #include <WebCore/RemoteVideoSample.h> |
| #include <WebCore/WebAudioBufferList.h> |
| #include <wtf/CompletionHandler.h> |
| |
| namespace WebKit { |
| using namespace WebCore; |
| |
| std::unique_ptr<RemoteMediaRecorder> RemoteMediaRecorder::create(GPUConnectionToWebProcess& gpuConnectionToWebProcess, MediaRecorderIdentifier identifier, bool recordAudio, bool recordVideo) |
| { |
| auto writer = MediaRecorderPrivateWriter::create(recordAudio, recordVideo); |
| if (!writer) |
| return nullptr; |
| return std::unique_ptr<RemoteMediaRecorder>(new RemoteMediaRecorder { gpuConnectionToWebProcess, identifier, writer.releaseNonNull(), recordAudio }); |
| } |
| |
| RemoteMediaRecorder::RemoteMediaRecorder(GPUConnectionToWebProcess& gpuConnectionToWebProcess, MediaRecorderIdentifier identifier, Ref<MediaRecorderPrivateWriter>&& writer, bool recordAudio) |
| : m_gpuConnectionToWebProcess(gpuConnectionToWebProcess) |
| , m_identifier(identifier) |
| , m_writer(WTFMove(writer)) |
| { |
| if (recordAudio) |
| m_ringBuffer = makeUnique<CARingBuffer>(makeUniqueRef<SharedRingBufferStorage>(nullptr)); |
| } |
| |
| RemoteMediaRecorder::~RemoteMediaRecorder() |
| { |
| } |
| |
| SharedRingBufferStorage& RemoteMediaRecorder::storage() |
| { |
| return static_cast<SharedRingBufferStorage&>(m_ringBuffer->storage()); |
| } |
| |
| void RemoteMediaRecorder::audioSamplesStorageChanged(const SharedMemory::Handle& handle, const WebCore::CAAudioStreamDescription& description, uint64_t numberOfFrames) |
| { |
| ASSERT(m_ringBuffer); |
| if (!m_ringBuffer) |
| return; |
| |
| m_description = description; |
| |
| if (handle.isNull()) { |
| m_ringBuffer->deallocate(); |
| storage().setReadOnly(false); |
| storage().setStorage(nullptr); |
| return; |
| } |
| |
| auto memory = SharedMemory::map(handle, SharedMemory::Protection::ReadOnly); |
| storage().setStorage(WTFMove(memory)); |
| storage().setReadOnly(true); |
| |
| m_ringBuffer->allocate(description, numberOfFrames); |
| } |
| |
| void RemoteMediaRecorder::audioSamplesAvailable(MediaTime time, uint64_t numberOfFrames, uint64_t startFrame, uint64_t endFrame) |
| { |
| ASSERT(m_ringBuffer); |
| if (!m_ringBuffer) |
| return; |
| |
| m_ringBuffer->setCurrentFrameBounds(startFrame, endFrame); |
| |
| WebAudioBufferList audioData(m_description, numberOfFrames); |
| m_ringBuffer->fetch(audioData.list(), numberOfFrames, time.timeValue()); |
| |
| m_writer->appendAudioSampleBuffer(audioData, m_description, time, numberOfFrames); |
| } |
| |
| void RemoteMediaRecorder::videoSampleAvailable(WebCore::RemoteVideoSample&& remoteSample) |
| { |
| if (!m_imageTransferSession || m_imageTransferSession->pixelFormat() != remoteSample.videoFormat()) |
| m_imageTransferSession = ImageTransferSessionVT::create(remoteSample.videoFormat()); |
| |
| if (!m_imageTransferSession) { |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| |
| auto sampleBuffer = m_imageTransferSession->createMediaSample(remoteSample); |
| if (!sampleBuffer) { |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| |
| m_writer->appendVideoSampleBuffer(sampleBuffer->platformSample().sample.cmSampleBuffer); |
| } |
| |
| void RemoteMediaRecorder::fetchData(CompletionHandler<void(IPC::DataReference&&, const String& mimeType)>&& completionHandler) |
| { |
| static NeverDestroyed<const String> mp4MimeType(MAKE_STATIC_STRING_IMPL("video/mp4")); |
| m_writer->fetchData([&mp4MimeType = mp4MimeType.get(), completionHandler = WTFMove(completionHandler)](auto&& data) mutable { |
| auto* pointer = reinterpret_cast<const uint8_t*>(data ? data->data() : nullptr); |
| completionHandler(IPC::DataReference { pointer, data ? data->size() : 0 }, mp4MimeType); |
| }); |
| } |
| |
| void RemoteMediaRecorder::stopRecording() |
| { |
| m_writer->stopRecording(); |
| } |
| |
| } |
| |
| #endif // PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM) && HAVE(AVASSETWRITERDELEGATE) |