cinelerra/vdevicebase.h

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