cinelerra/filecr2.C

   1 #include "asset.h"
   2 #include "colormodels.h"
   3 #include "filecr2.h"
   4 #include "mutex.h"
   5 #include <string.h>
   6 #include <unistd.h>
   7
   8 // Only allow one instance of the decoder to run simultaneously.
   9 static Mutex cr2_mutex;
  10
  11
  12 FileCR2::FileCR2(Asset *asset, File *file)
  13  : FileBase(asset, file)
  14 {
  15         reset();
  16 }
  17
  18 FileCR2::~FileCR2()
  19 {
  20         close_file();
  21 }
  22
  23
  24 void FileCR2::reset()
  25 {
  26 }
  27
  28 int FileCR2::check_sig(Asset *asset)
  29 {
  30         cr2_mutex.lock("FileCR2::check_sig");
  31         char string[BCTEXTLEN];
  32         int argc = 3;
  33
  34         strcpy(string, asset->path);
  35
  36         char *argv[4];
  37         argv[0] = "dcraw";
  38         argv[1] = "-i";
  39         argv[2] = string;
  40         argv[3] = 0;
  41
  42         int result = dcraw_main(argc, argv);
  43
  44         cr2_mutex.unlock();
  45
  46         return !result;
  47 }
  48
  49 int FileCR2::open_file(int rd, int wr)
  50 {
  51         cr2_mutex.lock("FileCR2::check_sig");
  52
  53         int argc = 3;
  54         char *argv[3] =
  55         {
  56                 "dcraw",
  57                 "-i",
  58                 asset->path
  59         };
  60
  61         int result = dcraw_main(argc, argv);
  62         if(!result) format_to_asset();
  63
  64         cr2_mutex.unlock();
  65         return result;
  66 }
  67
  68
  69 int FileCR2::close_file()
  70 {
  71         return 0;
  72 }
  73
  74 void FileCR2::format_to_asset()
  75 {
  76         asset->video_data = 1;
  77         asset->layers = 1;
  78         sscanf(dcraw_info, "%d %d", &asset->width, &asset->height);
  79         if(!asset->frame_rate) asset->frame_rate = 1;
  80         asset->video_length = -1;
  81 }
  82
  83
  84 int FileCR2::read_frame(VFrame *frame)
  85 {
  86         cr2_mutex.lock("FileCR2::check_sig");
  87         if(frame->get_color_model() == BC_RGBA_FLOAT)
  88                 dcraw_alpha = 1;
  89         else
  90                 dcraw_alpha = 0;
  91
  92
  93 // output to stdout
  94         int argc = 3;
  95         char *argv[3] =
  96         {
  97                 "dcraw",
  98                 "-c",
  99                 asset->path
 100         };
 101         dcraw_data = (float**)frame->get_rows();
 102
 103         int result = dcraw_main(argc, argv);
 104
 105         cr2_mutex.unlock();
 106         return 0;
 107 }
 108
 109 int FileCR2::colormodel_supported(int colormodel)
 110 {
 111         if(colormodel == BC_RGB_FLOAT ||
 112                 colormodel == BC_RGBA_FLOAT)
 113                 return colormodel;
 114         return BC_RGB_FLOAT;
 115 }
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