src/add-ons/media/media-add-ons/tone_producer_demo/ToneProducerAddOn.h

   1 /* Written by Eric Moon, from the Cortex Source code archive.
   2  * Distributed under the terms of the Be Sample Code License
   3  */
   4
   5 // ToneProducerAddOn.h
   6 // e.moon 4jun99
   7 //
   8 // PURPOSE
   9 //   Quickie AddOn class for the ToneProducer node.
  10 //
  11
  12 #ifndef __ToneProducerAddOn_H__
  13 #define __ToneProducerAddOn_H__
  14
  15 #include <MediaAddOn.h>
  16
  17 // -------------------------------------------------------- //
  18
  19 class ToneProducerAddOn :
  20         public          BMediaAddOn {
  21         typedef BMediaAddOn _inherited;
  22
  23 public:                                 // ctor/dtor
  24         virtual ~ToneProducerAddOn();
  25         explicit ToneProducerAddOn(image_id image);
  26
  27 public:                                 // BMediaAddOn impl
  28 virtual status_t InitCheck(
  29                                 const char** out_failure_text);
  30 virtual int32 CountFlavors();
  31 virtual status_t GetFlavorAt(
  32                                 int32 n,
  33                                 const flavor_info ** out_info);
  34 virtual BMediaNode * InstantiateNodeFor(
  35                                 const flavor_info * info,
  36                                 BMessage * config,
  37                                 status_t * out_error);
  38 virtual status_t GetConfigurationFor(
  39                                 BMediaNode * your_node,
  40                                 BMessage * into_message);
  41
  42 virtual bool WantsAutoStart() { return false; }
  43 virtual status_t AutoStart(
  44                                 int in_count,
  45                                 BMediaNode ** out_node,
  46                                 int32 * out_internal_id,
  47                                 bool * out_has_more) { return B_OK; }
  48 };
  49
  50 #endif /*__ToneProducerAddOn_H__*/