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/*
* Copyright (C) 2024 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.
*/
#pragma once
#if ENABLE(MEDIA_RECORDER)
#include <memory>
#include <optional>
#include <wtf/Deque.h>
#include <wtf/Forward.h>
#include <wtf/MediaTime.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/ThreadSafeWeakPtr.h>
typedef const struct opaqueCMFormatDescription* CMFormatDescriptionRef;
struct CGAffineTransform;
namespace WebCore {
class MediaSamplesBlock;
struct AudioInfo;
struct VideoInfo;
class MediaRecorderPrivateWriterListener : public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<MediaRecorderPrivateWriterListener> {
public:
virtual void appendData(std::span<const uint8_t>) = 0;
virtual ~MediaRecorderPrivateWriterListener() = default;
};
class MediaRecorderPrivateWriter {
WTF_MAKE_TZONE_ALLOCATED(MediaRecorderPrivateWriter);
public:
WEBCORE_EXPORT static std::unique_ptr<MediaRecorderPrivateWriter> create(String type, MediaRecorderPrivateWriterListener&);
WEBCORE_EXPORT MediaRecorderPrivateWriter();
WEBCORE_EXPORT virtual ~MediaRecorderPrivateWriter();
virtual std::optional<uint8_t> addAudioTrack(const AudioInfo&) = 0;
virtual std::optional<uint8_t> addVideoTrack(const VideoInfo&, const std::optional<CGAffineTransform>&) = 0;
virtual bool allTracksAdded() = 0;
enum class Result : uint8_t { Success, Failure, NotReady };
using WriterPromise = NativePromise<void, Result>;
WEBCORE_EXPORT virtual Ref<WriterPromise> writeFrames(Deque<UniqueRef<MediaSamplesBlock>>&&, const MediaTime&);
WEBCORE_EXPORT virtual Ref<GenericPromise> close();
private:
virtual Result writeFrame(const MediaSamplesBlock&) = 0;
virtual void forceNewSegment(const MediaTime&) = 0;
virtual Ref<GenericPromise> close(const MediaTime&) = 0;
Deque<UniqueRef<MediaSamplesBlock>> m_pendingFrames;
MediaTime m_lastEndTime { MediaTime::invalidTime() };
};
} // namespace WebCore
#endif // ENABLE(MEDIA_RECORDER)
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