llmediaimplgstreamer.h

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// header guard
#ifndef llmediaimplgstreamer_h
#define llmediaimplgstreamer_h

#include "llmediaimplcommon.h"
#include "llmediaimplfactory.h"

#if LL_GSTREAMER_ENABLED

extern "C" {
#include <stdio.h>
#include <gst/gst.h>

#include <apr-1/apr_pools.h>
#include <apr-1/apr_dso.h>
}

#include "llmediaimplgstreamervidplug.h"
#ifdef LL_GST_SOUNDSINK
#include "llmediaimplgstreamersndplug.h"
#endif // LL_GST_SOUNDSINK

class LLMediaManagerData;
class LLMediaImplMaker;

class LLMediaImplGStreamer:
        public LLMediaImplCommon
{
        public:
                LLMediaImplGStreamer ();
                virtual ~LLMediaImplGStreamer ();

                // implementation of the media public interface

                static bool startup( LLMediaManagerData* init_data );
                static bool closedown();

                /* virtual */ std::string getVersion();
                /* virtual */ bool navigateTo( const std::string url );
                /* virtual */ bool updateMedia();
                /* virtual */ unsigned char* getMediaData();
                /* virtual */ int getTextureFormatPrimary() const;
                /* virtual */ int getTextureFormatType() const;
                /* virtual */ int getTextureFormatInternal() const;
                /* virtual */ bool setVolume( float volume );

                bool stop();
                bool play();
                LLMediaEmitter< LLMediaObserver > getEventEmitter() const {return mEventEmitter;};

        private:
                // misc
                bool unload();
                bool pause();
                unsigned char* mediaData;
                int mMediaRowbytes;

                int mTextureFormatPrimary;
                int mTextureFormatType;

                // GStreamer-specific
                GMainLoop *mPump; // event pump for this media
                GstElement *mPlaybin;
                GstSLVideo *mVideoSink;
#ifdef LL_GST_SOUNDSINK
                GstSLSound *mAudioSink;
#endif // LL_GST_SOUNDSINK
};

class LLMediaImplGStreamerMaker : public LLMediaImplMaker
{
public: 
        LLMediaImplGStreamerMaker();
        LLMediaImplGStreamer* create()
        {
                return new LLMediaImplGStreamer();
        }
};

// Debug/Info/Warning macros.
#define STDERRMSG(...) do{\
    fprintf(stderr, "%s:%d: ", __FUNCTION__, __LINE__);\
    fprintf(stderr, __VA_ARGS__);\
    fputc('\n',stderr);\
  }while(0)
#define NULLMSG(...) do{}while(0)

#define DEBUGMSG NULLMSG
#define INFOMSG  STDERRMSG
#define WARNMSG  STDERRMSG

#endif // LL_GSTREAMER_ENABLED

#endif // llmediaimplgstreamer_h

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