hvirtual/plugins/crossfade/crossfade.C

   1 #include "crossfade.h"
   2 #include "edl.inc"
   3 #include "overlayframe.h"
   4 #include "picon_png.h"
   5 #include "vframe.h"
   6
   7 #include <libintl.h>
   8 #define _(String) gettext(String)
   9 #define gettext_noop(String) String
  10 #define N_(String) gettext_noop (String)
  11
  12
  13
  14 REGISTER_PLUGIN(CrossfadeMain)
  15
  16
  17
  18
  19 CrossfadeMain::CrossfadeMain(PluginServer *server)
  20  : PluginAClient(server)
  21 {
  22 }
  23
  24 CrossfadeMain::~CrossfadeMain()
  25 {
  26 }
  27
  28 char* CrossfadeMain::plugin_title() { return _("Crossfade"); }
  29 int CrossfadeMain::is_transition() { return 1; }
  30 int CrossfadeMain::uses_gui() { return 0; }
  31
  32 NEW_PICON_MACRO(CrossfadeMain)
  33
  34
  35 int CrossfadeMain::process_realtime(int64_t size,
  36         double *outgoing,
  37         double *incoming)
  38 {
  39         double intercept = (double)PluginClient::get_source_position() /
  40                 PluginClient::get_total_len();
  41         double slope = (double)1 / PluginClient::get_total_len();
  42
  43         for(int i = 0; i < size; i++)
  44         {
  45                 incoming[i] = outgoing[i] * ((double)1 - (slope * i + intercept)) +
  46                         incoming[i] * (slope * i + intercept);
  47         }
  48
  49         return 0;
  50 }