gstDecoder.h

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/*
 * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __GSTREAMER_DECODER_H__
#define __GSTREAMER_DECODER_H__

#include "gstUtility.h"


struct _GstAppSink;


class gstDecoder
{
public:
        gstDecoder* Create( gstCodec codec, const char* filename );
        
        gstDecoder* Create( gstCodec codec, uint16_t port );
        
        gstDecoder* Create( gstCodec codec, const char* multicastIP, uint16_t port );
        
        ~gstDecoder();
        

protected:
        gstDecoder();
        
        void checkMsgBus();
        void checkBuffer();
        bool buildLaunchStr();
        
        bool init( gstCodec codec, const char* filename, const char* multicastIP, uint16_t port );
        
        static void onEOS(_GstAppSink* sink, void* user_data);
        static GstFlowReturn onPreroll(_GstAppSink* sink, void* user_data);
        static GstFlowReturn onBuffer(_GstAppSink* sink, void* user_data);

        _GstBus*     mBus;
        _GstAppSink* mAppSink;
        _GstElement* mPipeline;
        gstCodec     mCodec;
        
        std::string  mLaunchStr;
        std::string  mInputPath;
        std::string  mMulticastIP;
        uint16_t     mPort;
};
  
#endif