cinelerra/vedit.C

   1 #include "asset.h"
   2 #include "cache.h"
   3 #include "edl.h"
   4 #include "edlsession.h"
   5 #include "file.h"
   6 #include "mwindow.h"
   7 #include "patch.h"
   8 #include "preferences.h"
   9 #include "mainsession.h"
  10 #include "trackcanvas.h"
  11 #include "tracks.h"
  12 #include "transportque.h"
  13 #include "units.h"
  14 #include "vedit.h"
  15 #include "vedits.h"
  16 #include "vframe.h"
  17 #include "vtrack.h"
  18
  19 VEdit::VEdit(EDL *edl, Edits *edits)
  20  : Edit(edl, edits)
  21 {
  22 }
  23
  24
  25 VEdit::~VEdit() { }
  26
  27 int VEdit::load_properties_derived(FileXML *xml)
  28 {
  29         channel = xml->tag.get_property("CHANNEL", (int64_t)0);
  30         return 0;
  31 }
  32
  33
  34
  35
  36
  37 // ================================================== editing
  38
  39
  40
  41 int VEdit::read_frame(VFrame *video_out,
  42         int64_t input_position,
  43         int direction,
  44         CICache *cache,
  45         int use_nudge,
  46         int use_cache)
  47 {
  48         File *file = cache->check_out(asset);
  49         int result = 0;
  50         if(use_nudge) input_position += track->nudge;
  51
  52         if(file)
  53         {
  54
  55                 input_position = (direction == PLAY_FORWARD) ? input_position : (input_position - 1);
  56
  57                 file->set_layer(channel);
  58
  59                 file->set_video_position(input_position - startproject + startsource, edl->session->frame_rate);
  60
  61                 file->set_cache_frames(use_cache);
  62                 result = file->read_frame(video_out);
  63                 file->set_cache_frames(0);
  64
  65                 cache->check_in(asset);
  66         }
  67         else
  68                 result = 1;
  69
  70 //for(int i = 0; i < video_out->get_w() * 3 * 20; i++) video_out->get_rows()[0][i] = 128;
  71         return result;
  72 }
  73
  74 int VEdit::copy_properties_derived(FileXML *xml, int64_t length_in_selection)
  75 {
  76         return 0;
  77 }
  78
  79 int VEdit::dump_derived()
  80 {
  81         printf("        VEdit::dump_derived\n");
  82         printf("                startproject %ld\n", startproject);
  83         printf("                length %ld\n", length);
  84 }
  85
  86 int64_t VEdit::get_source_end(int64_t default_)
  87 {
  88         if(!asset) return default_;   // Infinity
  89
  90         return (int64_t)((double)asset->video_length / asset->frame_rate * edl->session->frame_rate + 0.5);
  91 }