MediaPlayerPrivateGStreamerBase.h   [plain text]

/*
 * Copyright (C) 2007, 2009 Apple Inc.  All rights reserved.
 * Copyright (C) 2007 Collabora Ltd. All rights reserved.
 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
 * Copyright (C) 2009, 2010 Igalia S.L
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * aint with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef MediaPlayerPrivateGStreamerBase_h
#define MediaPlayerPrivateGStreamerBase_h
#if ENABLE(VIDEO) && USE(GSTREAMER)

#include "GRefPtrGStreamer.h"
#include "MediaPlayerPrivate.h"

#include <glib.h>

#include <wtf/Forward.h>
#include <wtf/glib/GThreadSafeMainLoopSource.h>

#if USE(TEXTURE_MAPPER_GL) && !USE(COORDINATED_GRAPHICS)
#include "TextureMapperPlatformLayer.h"
#endif

typedef struct _GstMessage GstMessage;
typedef struct _GstStreamVolume GstStreamVolume;
typedef struct _GstGLContext GstGLContext;
typedef struct _GstGLDisplay GstGLDisplay;

namespace WebCore {

class GraphicsContext;
class IntSize;
class IntRect;

class MediaPlayerPrivateGStreamerBase : public MediaPlayerPrivateInterface
#if USE(TEXTURE_MAPPER_GL) && !USE(COORDINATED_GRAPHICS)
    , public TextureMapperPlatformLayer
#endif
{

public:
    virtual ~MediaPlayerPrivateGStreamerBase();

    FloatSize naturalSize() const;

    void setVolume(float);
    float volume() const;
    void volumeChanged();
    void notifyPlayerOfVolumeChange();

#if USE(GSTREAMER_GL)
    bool ensureGstGLContext();
#endif
    void handleNeedContextMessage(GstMessage*);

    bool supportsMuting() const { return true; }
    void setMuted(bool);
    bool muted() const;
    void muteChanged();
    void notifyPlayerOfMute();

    MediaPlayer::NetworkState networkState() const;
    MediaPlayer::ReadyState readyState() const;

    void setVisible(bool) { }
    void setSize(const IntSize&);
    void sizeChanged();

    void triggerRepaint(GstSample*);
    void paint(GraphicsContext*, const FloatRect&);

    virtual bool hasSingleSecurityOrigin() const { return true; }
    virtual float maxTimeLoaded() const { return 0.0; }

    bool supportsFullscreen() const;
    PlatformMedia platformMedia() const;

    MediaPlayer::MovieLoadType movieLoadType() const;
    virtual bool isLiveStream() const = 0;

    MediaPlayer* mediaPlayer() const { return m_player; }

    unsigned decodedFrameCount() const;
    unsigned droppedFrameCount() const;
    unsigned audioDecodedByteCount() const;
    unsigned videoDecodedByteCount() const;

#if USE(TEXTURE_MAPPER_GL) && !USE(COORDINATED_GRAPHICS)
    virtual PlatformLayer* platformLayer() const { return const_cast<MediaPlayerPrivateGStreamerBase*>(this); }
#if PLATFORM(WIN_CAIRO)
    // FIXME: Accelerated rendering has not been implemented for WinCairo yet.
    virtual bool supportsAcceleratedRendering() const { return false; }
#else
    virtual bool supportsAcceleratedRendering() const { return true; }
#endif
    virtual void paintToTextureMapper(TextureMapper*, const FloatRect&, const TransformationMatrix&, float);
#endif

protected:
    MediaPlayerPrivateGStreamerBase(MediaPlayer*);
    virtual GstElement* createVideoSink();

    void setStreamVolumeElement(GstStreamVolume*);
    virtual GstElement* createAudioSink() { return 0; }
    virtual GstElement* audioSink() const { return 0; }

    void setPipeline(GstElement*);

    MediaPlayer* m_player;
    GRefPtr<GstElement> m_pipeline;
    GRefPtr<GstStreamVolume> m_volumeElement;
    GRefPtr<GstElement> m_videoSink;
    GRefPtr<GstElement> m_fpsSink;
    MediaPlayer::ReadyState m_readyState;
    MediaPlayer::NetworkState m_networkState;
    IntSize m_size;
    mutable GMutex m_sampleMutex;
    GRefPtr<GstSample> m_sample;
    GThreadSafeMainLoopSource m_volumeTimerHandler;
    GThreadSafeMainLoopSource m_muteTimerHandler;
#if USE(GSTREAMER_GL)
    GThreadSafeMainLoopSource m_drawTimerHandler;
    GCond m_drawCondition;
    GMutex m_drawMutex;
#endif
    unsigned long m_repaintHandler;
    unsigned long m_volumeSignalHandler;
    unsigned long m_muteSignalHandler;
    mutable FloatSize m_videoSize;
    bool m_usingFallbackVideoSink;
#if USE(TEXTURE_MAPPER_GL) && !USE(COORDINATED_GRAPHICS)
    PassRefPtr<BitmapTexture> updateTexture(TextureMapper*);
#endif
#if USE(GSTREAMER_GL)
    GRefPtr<GstGLContext> m_glContext;
    GRefPtr<GstGLDisplay> m_glDisplay;
#endif
};
}

#endif // USE(GSTREAMER)
#endif