src/add-ons/media/media-add-ons/usb_webcam/AddOn.h

   1 /*
   2  * Copyright 2004-2008, François Revol, <revol@free.fr>.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _VIDEO_ADDON_H
   6 #define _VIDEO_ADDON_H
   7
   8 #include <media/MediaAddOn.h>
   9
  10 #define TOUCH(x) ((void)(x))
  11
  12 extern "C" _EXPORT BMediaAddOn *make_media_addon(image_id you);
  13
  14 class CamRoster;
  15 class CamDevice;
  16
  17 class WebCamMediaAddOn : public BMediaAddOn {
  18 public:
  19                                                 WebCamMediaAddOn(image_id imid);
  20         virtual                         ~WebCamMediaAddOn();
  21
  22         virtual status_t        InitCheck(const char **out_failure_text);
  23
  24         virtual int32           CountFlavors();
  25         virtual status_t        GetFlavorAt(int32 n, const flavor_info ** out_info);
  26         virtual BMediaNode      *InstantiateNodeFor(
  27                                                         const flavor_info * info,
  28                                                         BMessage * config,
  29                                                         status_t * out_error);
  30
  31         virtual status_t        GetConfigurationFor(BMediaNode *node, BMessage *message)
  32                                                                 { TOUCH(node); TOUCH(message); return B_OK; }
  33         virtual status_t        SaveConfigInfo(BMediaNode *node, BMessage *message)
  34                                                                 { TOUCH(node); TOUCH(message); return B_OK; }
  35
  36         virtual bool            WantsAutoStart() { return false; }
  37         virtual status_t        AutoStart(int in_count, BMediaNode **out_node,
  38                                                                 int32 *out_internal_id, bool *out_has_more)
  39                                                                 {       TOUCH(in_count); TOUCH(out_node);
  40                                                                         TOUCH(out_internal_id); TOUCH(out_has_more);
  41                                                                         return B_ERROR; }
  42                 // those are for use by CamDevices
  43                 status_t                CameraAdded(CamDevice* device);
  44                 status_t                CameraRemoved(CamDevice* device);
  45                 void                    FillDefaultFlavorInfo(flavor_info* info);
  46
  47 private:
  48         uint32                          fInternalIDCounter;
  49         status_t                        fInitStatus;
  50         flavor_info                     fDefaultFlavorInfo;
  51         media_format            fMediaFormat;
  52         CamRoster*                      fRoster;
  53 };
  54
  55 #endif