VlcCapture.h

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/*
 * VlcCapture.h
 *
 *  Created on: 03.03.2014
 *      Author: planthaber
 */

#ifndef VLCCAPTURE_H_
#define VLCCAPTURE_H_


//https://wiki.videolan.org/Stream_to_memory_%28smem%29_tutorial/

#include <stdio.h>
#include <stdint.h>
#include <string>

#include <vlc/vlc.h>

#include <pthread.h>
#include <opencv2/opencv.hpp>


void pf_video_prerender_callback ( void* p_video_data, uint8_t** pp_pixel_buffer, size_t size );

void pf_video_postrender_callback ( void* p_video_data, uint8_t* p_pixel_buffer, int width, int height, int pixel_pitch, size_t size, libvlc_time_t pts );

void pf_audio_prerender_callback ( void* p_audio_data, uint8_t** pp_pcm_buffer, size_t size );
void pf_audio_postrender_callback ( void* p_audio_data, uint8_t* p_pcm_buffer, unsigned int channels, unsigned int rate, unsigned int nb_samples, unsigned int bits_per_sample, size_t size, libvlc_time_t pts );


class VlcCaptureConsumer{
    public:
    /*
     * get called when a new image is arrived
     */
    virtual void imageCallback()=0;
};

class VlcCapture {
public:
        VlcCapture(std::string url = "", int input_buffer_ms = 10);
        virtual ~VlcCapture();


        void open(std::string &url);

        //bool grab();

        //bool retrieve();

        bool read(cv::Mat &image);

        int start();

        void stop();


        pthread_mutex_t imagemutex;

        static pthread_mutex_t callbackmutex;

        int width,height;

        //cv::Mat imagebuf;
        uint8_t* buffer;
        unsigned int buffersize;

        bool imageAvailable;

        std::string _url;


        void prerender_callback(void* p_video_data, uint8_t** pp_pixel_buffer, size_t size);
        void postrender_callback(void* p_video_data, uint8_t* p_pixel_buffer, int width, int height, int pixel_pitch, size_t size, libvlc_time_t pts );

        std::vector<VlcCaptureConsumer*> callbacks;
private:



        int buffer_ms;

    //options
    char smem_options[256];

    //callback pointer addess string
    char str_smem_vid_prerender[100], str_smem_vid_postrender[100];
    char str_smem_aud_prerender[100], str_smem_aud_postrender[100];
    char str_smem_data[100],str_netbuf[100];

    libvlc_instance_t *vlc;
    libvlc_media_player_t *vlcmp;
    libvlc_media_t *vlcm;

};

#endif /* VLCTOMEMORY_H_ */