cinelerra/vedit.C

   1 #include "asset.h"
   2 #include "bcsignals.h"
   3 #include "cache.h"
   4 #include "edl.h"
   5 #include "edlsession.h"
   6 #include "file.h"
   7 #include "mwindow.h"
   8 #include "patch.h"
   9 #include "preferences.h"
  10 #include "mainsession.h"
  11 #include "trackcanvas.h"
  12 #include "tracks.h"
  13 #include "transportque.h"
  14 #include "units.h"
  15 #include "vedit.h"
  16 #include "vedits.h"
  17 #include "vframe.h"
  18 #include "vtrack.h"
  19
  20 VEdit::VEdit(EDL *edl, Edits *edits)
  21  : Edit(edl, edits)
  22 {
  23 }
  24
  25
  26 VEdit::~VEdit() { }
  27
  28 int VEdit::load_properties_derived(FileXML *xml)
  29 {
  30         channel = xml->tag.get_property("CHANNEL", (int64_t)0);
  31         return 0;
  32 }
  33
  34
  35
  36
  37
  38 // ================================================== editing
  39
  40
  41
  42 int VEdit::read_frame(VFrame *video_out,
  43         int64_t input_position,
  44         int direction,
  45         CICache *cache,
  46         int use_nudge,
  47         int use_cache,
  48         int use_asynchronous)
  49 {
  50         File *file = cache->check_out(asset,
  51                 edl);
  52         int result = 0;
  53         if(use_nudge) input_position += track->nudge;
  54
  55         if(file)
  56         {
  57
  58                 input_position = (direction == PLAY_FORWARD) ? input_position : (input_position - 1);
  59
  60                 if(use_asynchronous)
  61                         file->start_video_decode_thread();
  62                 else
  63                         file->stop_video_thread();
  64
  65                 file->set_layer(channel);
  66                 file->set_video_position(input_position - startproject + startsource, edl->session->frame_rate);
  67                 if(use_cache) file->set_cache_frames(use_cache);
  68                 result = file->read_frame(video_out);
  69                 if(use_cache) file->set_cache_frames(0);
  70
  71                 cache->check_in(asset);
  72         }
  73         else
  74                 result = 1;
  75
  76 //for(int i = 0; i < video_out->get_w() * 3 * 20; i++) video_out->get_rows()[0][i] = 128;
  77         return result;
  78 }
  79
  80 int VEdit::copy_properties_derived(FileXML *xml, int64_t length_in_selection)
  81 {
  82         return 0;
  83 }
  84
  85 int VEdit::dump_derived()
  86 {
  87         printf("        VEdit::dump_derived\n");
  88         printf("                startproject %ld\n", startproject);
  89         printf("                length %ld\n", length);
  90 }
  91
  92 int64_t VEdit::get_source_end(int64_t default_)
  93 {
  94         if(!asset) return default_;   // Infinity
  95
  96         return (int64_t)((double)asset->video_length / asset->frame_rate * edl->session->frame_rate + 0.5);
  97 }