RemoteMediaRecorder.cpp [plain text]
#include "config.h"
#include "RemoteMediaRecorder.h"
#if PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM) && HAVE(AVASSETWRITERDELEGATE)
#include "Connection.h"
#include "GPUConnectionToWebProcess.h"
#include "SharedRingBufferStorage.h"
#include <WebCore/CARingBuffer.h>
#include <WebCore/ImageTransferSessionVT.h>
#include <WebCore/RemoteVideoSample.h>
#include <WebCore/WebAudioBufferList.h>
#include <wtf/CompletionHandler.h>
#define MESSAGE_CHECK(assertion) MESSAGE_CHECK_BASE(assertion, (&m_gpuConnectionToWebProcess.connection()))
namespace WebKit {
using namespace WebCore;
std::unique_ptr<RemoteMediaRecorder> RemoteMediaRecorder::create(GPUConnectionToWebProcess& gpuConnectionToWebProcess, MediaRecorderIdentifier identifier, bool recordAudio, bool recordVideo, const MediaRecorderPrivateOptions& options)
{
auto writer = MediaRecorderPrivateWriter::create(recordAudio, recordVideo, options);
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>();
}
RemoteMediaRecorder::~RemoteMediaRecorder()
{
}
void RemoteMediaRecorder::audioSamplesStorageChanged(const SharedMemory::IPCHandle& ipcHandle, const WebCore::CAAudioStreamDescription& description, uint64_t numberOfFrames)
{
MESSAGE_CHECK(m_ringBuffer);
m_description = description;
m_ringBuffer = makeUnique<CARingBuffer>(makeUniqueRef<ReadOnlySharedRingBufferStorage>(ipcHandle.handle), description, numberOfFrames);
m_audioBufferList = makeUnique<WebAudioBufferList>(m_description);
}
void RemoteMediaRecorder::audioSamplesAvailable(MediaTime time, uint64_t numberOfFrames)
{
MESSAGE_CHECK(m_ringBuffer);
MESSAGE_CHECK(m_audioBufferList);
MESSAGE_CHECK(WebAudioBufferList::isSupportedDescription(m_description, numberOfFrames));
m_audioBufferList->setSampleCount(numberOfFrames);
m_ringBuffer->fetch(m_audioBufferList->list(), numberOfFrames, time.timeValue());
m_writer->appendAudioSampleBuffer(*m_audioBufferList, 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);
}
void RemoteMediaRecorder::fetchData(CompletionHandler<void(IPC::DataReference&&, double)>&& completionHandler)
{
m_writer->fetchData([completionHandler = WTFMove(completionHandler)](auto&& data, auto timeCode) mutable {
auto* pointer = reinterpret_cast<const uint8_t*>(data ? data->data() : nullptr);
completionHandler(IPC::DataReference { pointer, data ? data->size() : 0 }, timeCode);
});
}
void RemoteMediaRecorder::stopRecording()
{
m_writer->stopRecording();
}
void RemoteMediaRecorder::pause(CompletionHandler<void()>&& completionHandler)
{
m_writer->pause();
completionHandler();
}
void RemoteMediaRecorder::resume(CompletionHandler<void()>&& completionHandler)
{
m_writer->resume();
completionHandler();
}
}
#undef MESSAGE_CHECK
#endif // PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM) && HAVE(AVASSETWRITERDELEGATE)