hvirtual/cinelerra/devicedvbinput.h

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#ifndef DEVICEDVBINPUT_H
#define DEVICEDVBINPUT_H

#include "channel.inc"
#include "condition.inc"
#include "garbage.h"
#include "mwindow.inc"
#include "recordconfig.inc"
#include <stdint.h>
#include "thread.h"


// This is the common interface for the DVB recording devices.
// It handles the network connection to the DVB tuner.


class DeviceDVBInput : public GarbageObject
{
public:
        DeviceDVBInput(MWindow *mwindow, 
                VideoInConfig *config);
        ~DeviceDVBInput();

        void reset();

        int close();
        int try_tuner();
        int reopen_tuner();
        int get_signal_strength(int channel, int tuner_id);

// Provides multiplexed data.  Each caller needs its own demuxer.
// Returns the number of bytes read.
// Initial opening and channel changes are handled in here.
        int read_stream(unsigned char *data, int size);

// Access the socket
        int read_tuner(unsigned char *data, int size);
        int write_tuner(unsigned char *data, int size);
        int write_int64(int64_t value);
        int64_t read_int64(int *error);

// Acquire the global DVB input thread
// by either referencing MWindow::dvb_input or creating a new one.
// Then try to connect to the tuner and begin streaming immediately.
// Return 0 if failure.
        static DeviceDVBInput* get_input_thread(MWindow *mwindow);
// Release the global DVB input thread by either deleting it or decreasing
// the reference counter.
        static void put_input_thread(MWindow *mwindow);


        VideoInConfig *config;
        int tuner_fd;
        int want_signal;
        Condition *signal_lock;
        int lock_result;
        int signal_result;
        int channel_changed;
        MWindow *mwindow;
        Channel *channel;
};




#endif

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