hvirtual/cinelerra/vdevicebase.h

   1 #ifndef VDEVICEBASE_H
   2 #define VDEVICEBASE_H
   3
   4 #include "assets.inc"
   5 #include "channel.inc"
   6 #include "colormodels.h"
   7 #include "edl.inc"
   8 #include "guicast.h"
   9 #include "videodevice.inc"
  10
  11 class VDeviceBase
  12 {
  13 public:
  14         VDeviceBase(VideoDevice *device);
  15         virtual ~VDeviceBase();
  16
  17         virtual int open_input() { return 1; };
  18         virtual int close_all() { return 1; };
  19         virtual int read_buffer(VFrame *frame) { return 1; };
  20         virtual int write_buffer(VFrame **outputs, EDL *edl) { return 1; };
  21         virtual void new_output_buffer(VFrame **outputs, int colormodel) {};
  22         virtual ArrayList<int>* get_render_strategies() { return 0; };
  23         virtual int get_shared_data(unsigned char *data, long size) { return 0; };
  24         virtual int stop_sharing() { return 0; };
  25         virtual int interrupt_crash() { return 0; };
  26 // Extra work must sometimes be done in here to set up the device.
  27         virtual int get_best_colormodel(Asset *asset);
  28         virtual int set_channel(Channel *channel) { return 0; };
  29         virtual int set_picture(int brightness,
  30                 int hue,
  31                 int color,
  32                 int contrast,
  33                 int whiteness) { return 0; };
  34 // Create a default channeldb
  35         virtual void create_channeldb(ArrayList<Channel*> *channeldb) {};
  36
  37         virtual int open_output() { return 1; };
  38         virtual int output_visible() { return 0; };
  39         virtual int start_playback() { return 1; };
  40         virtual int stop_playback() { return 1; };
  41         virtual BC_Bitmap* get_bitmap() { return 0; };
  42 // Most Linux video drivers don't work.
  43 // Called by KeepaliveThread when the device appears to be stuck.
  44 // Should restart the device if that's what it takes to get it to work.
  45         virtual void goose_input() {};
  46
  47         VideoDevice *device;
  48 };
  49
  50 #endif