cinelerra/devicedvbinput.h

   1 #ifndef DEVICEDVBINPUT_H
   2 #define DEVICEDVBINPUT_H
   3
   4 #include "channel.inc"
   5 #include "condition.inc"
   6 #include "garbage.h"
   7 #include "mwindow.inc"
   8 #include "recordconfig.inc"
   9 #include <stdint.h>
  10 #include "thread.h"
  11
  12
  13 // This is the common interface for the DVB recording devices.
  14 // It handles the network connection to the DVB tuner.
  15
  16
  17 class DeviceDVBInput : public GarbageObject
  18 {
  19 public:
  20         DeviceDVBInput(MWindow *mwindow,
  21                 VideoInConfig *config);
  22         ~DeviceDVBInput();
  23
  24         void reset();
  25
  26         int close();
  27         int try_tuner();
  28         int reopen_tuner();
  29         int get_signal_strength(int channel, int tuner_id);
  30
  31 // Provides multiplexed data.  Each caller needs its own demuxer.
  32 // Returns the number of bytes read.
  33 // Initial opening and channel changes are handled in here.
  34         int read_stream(unsigned char *data, int size);
  35
  36 // Access the socket
  37         int read_tuner(unsigned char *data, int size);
  38         int write_tuner(unsigned char *data, int size);
  39         int write_int64(int64_t value);
  40         int64_t read_int64(int *error);
  41
  42 // Acquire the global DVB input thread
  43 // by either referencing MWindow::dvb_input or creating a new one.
  44 // Then try to connect to the tuner and begin streaming immediately.
  45 // Return 0 if failure.
  46         static DeviceDVBInput* get_input_thread(MWindow *mwindow);
  47 // Release the global DVB input thread by either deleting it or decreasing
  48 // the reference counter.
  49         static void put_input_thread(MWindow *mwindow);
  50
  51
  52         VideoInConfig *config;
  53         int tuner_fd;
  54         int want_signal;
  55         Condition *signal_lock;
  56         int lock_result;
  57         int signal_result;
  58         int channel_changed;
  59         MWindow *mwindow;
  60         Channel *channel;
  61 };
  62
  63
  64
  65
  66 #endif
  67
  68 /*
  69 //      Local Variables:
  70 //      mode: C++
  71 //      c-file-style: "linux"
  72 //      End:
  73 */