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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
* Copyright (C) 2013 Orange
* Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2015, 2016 Metrological Group B.V.
* Copyright (C) 2015, 2016 Igalia, S.L
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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.
*/
#pragma once
#if ENABLE(MEDIA_SOURCE) && USE(GSTREAMER)
#include "MediaSourcePrivate.h"
#include <wtf/Forward.h>
#include <wtf/HashSet.h>
#include <wtf/LoggerHelper.h>
namespace WebCore {
class SourceBufferPrivateGStreamer;
class MediaPlayerPrivateGStreamerMSE;
class PlatformTimeRanges;
class MediaSourcePrivateGStreamer final : public MediaSourcePrivate
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
{
public:
static Ref<MediaSourcePrivateGStreamer> open(MediaSourcePrivateClient&, MediaPlayerPrivateGStreamerMSE&);
virtual ~MediaSourcePrivateGStreamer();
void setPlayer(MediaPlayerPrivateInterface*) final;
RefPtr<MediaPlayerPrivateInterface> player() const final;
constexpr MediaPlatformType platformType() const final { return MediaPlatformType::GStreamer; }
AddStatus addSourceBuffer(const ContentType&, const MediaSourceConfiguration&, RefPtr<SourceBufferPrivate>&) override;
void durationChanged(const MediaTime&) override;
void markEndOfStream(EndOfStreamStatus) override;
void unmarkEndOfStream() override;
MediaPlayer::ReadyState mediaPlayerReadyState() const override;
void setMediaPlayerReadyState(MediaPlayer::ReadyState) override;
void notifyActiveSourceBuffersChanged() final;
void startPlaybackIfHasAllTracks();
bool hasAllTracks() const { return m_hasAllTracks; }
void detach();
// Similar to TrackPrivateBaseGStreamer::TrackType, but with a new value (Invalid) for when the codec is
// not supported on this system, which should result in ParsingFailed error being thrown in SourceBuffer.
enum StreamType { Audio, Video, Text, Unknown, Invalid };
struct RegisteredTrack {
WTF_DEPRECATED_MAKE_STRUCT_FAST_ALLOCATED(RegisteredTrack);
public:
RegisteredTrack()
: id(0)
, index(0)
, streamType(Invalid)
{ }
RegisteredTrack(TrackID id, size_t index, StreamType streamType)
: id(id)
, index(index)
, streamType(streamType)
{ }
TrackID id;
size_t index;
StreamType streamType;
};
RegisteredTrack registerTrack(TrackID, StreamType);
void unregisterTrack(TrackID);
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final { return m_logger; }
ASCIILiteral logClassName() const override { return "MediaSourcePrivateGStreamer"_s; }
uint64_t logIdentifier() const final { return m_logIdentifier; }
WTFLogChannel& logChannel() const final;
uint64_t nextSourceBufferLogIdentifier() { return childLogIdentifier(m_logIdentifier, ++m_nextSourceBufferID); }
#endif
private:
MediaSourcePrivateGStreamer(MediaSourcePrivateClient&, MediaPlayerPrivateGStreamerMSE&);
RefPtr<MediaPlayerPrivateGStreamerMSE> platformPlayer() const;
ThreadSafeWeakPtr<MediaPlayerPrivateGStreamerMSE> m_playerPrivate;
bool m_hasAllTracks { false };
#if !RELEASE_LOG_DISABLED
const Ref<const Logger> m_logger;
const uint64_t m_logIdentifier;
#endif
uint64_t m_nextSourceBufferID { 0 };
// Stores info on known tracks, so we can:
// 1) Work around collision in track ID between multiple source buffers.
// The registry is placed here to enforce ID uniqueness specifically by player, not by process,
// since it's not an issue if multiple players use the same ID, and we want to preserve IDs as much as possible.
// 2) Assign indices sequentially by track type.
// This means the first track of a type will always have index 0,
// the next of the same type will be assigned 1, and so on, which:
// - matches how MediaPlayerPrivateGStreamer assigns indices
// - how {Audio,Video,Text}TrackList stores its tracks
// - prevents a potential out-of-bounds crash in TextTrackList
// Just like for IDs, we store known indices here to enforce uniqueness by player.
HashMap<TrackID, RegisteredTrack, WTF::IntHash<TrackID>, WTF::UnsignedWithZeroKeyHashTraits<TrackID>> m_trackRegistry;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::MediaSourcePrivateGStreamer)
static bool isType(const WebCore::MediaSourcePrivate& mediaSource) { return mediaSource.platformType() == WebCore::MediaPlatformType::GStreamer; }
SPECIALIZE_TYPE_TRAITS_END()
#endif
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