photo: photo_capture.cpp Source File

00001 /*********************************************************************
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00003  * Software License Agreement (BSD License)
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00036 #include <unistd.h>
00037 #include <stdlib.h>
00038 #include <stdio.h>
00039 #include <string.h>
00040 #include <fcntl.h>
00041 #include <photo/photo.h>
00042 #include <photo/photo_image.h>
00043 
00044 int photo_capture_to_file(photo_p photo, const char *filename)
00045 {
00046   int fd, ret;
00047   CameraFile *photofile;
00048   CameraFilePath photo_file_path;
00049 
00050   /* NOP: This gets overridden in the library to /capt0000.jpg */
00051   strcpy(photo_file_path.folder, "/");
00052   strcpy(photo_file_path.name, "foo.jpg");
00053 
00054   ret = gp_camera_capture(photo->cam, GP_CAPTURE_IMAGE, &photo_file_path, photo->context);
00055   if (ret<GP_OK) {
00056     fprintf(stderr, "Could not capture image  (error code %d)\n", ret);
00057     return ret;
00058   }
00059 
00060   fd = open(filename, O_CREAT|O_WRONLY, 0644);
00061   ret = gp_file_new_from_fd(&photofile, fd);
00062   if (ret<GP_OK) {
00063     fprintf(stderr, "Could not create a new image file from %s%s (error code %d)\n", photo_file_path.folder,photo_file_path.name,ret);
00064     goto out;
00065   }
00066 
00067   ret = gp_camera_file_get(photo->cam, photo_file_path.folder, photo_file_path.name, GP_FILE_TYPE_NORMAL, photofile, photo->context);
00068   if (ret<GP_OK) {
00069     fprintf(stderr, "Could not get file %s%s (error code %d)\n", photo_file_path.folder,photo_file_path.name,ret);
00070 //    goto out;
00071   }
00072 
00073   ret = gp_camera_file_delete(photo->cam, photo_file_path.folder, photo_file_path.name, photo->context);
00074   if (ret<GP_OK) {
00075     fprintf(stderr, "Could delete file %s%s  (error code %d)\n", photo_file_path.folder,photo_file_path.name,ret);
00076     goto out;
00077   }
00078 
00079   out: gp_file_free(photofile);
00080   return (ret==GP_OK);
00081 }
00082 
00083 
00084 int photo_capture(photo_p photo, photo_image_p image)
00085 {
00086   int fd, ret;
00087   CameraFile *photofile;
00088   CameraFilePath photo_file_path;
00089   char  tmpname[20];
00090 
00091   /* NOP: This gets overridden in the library to /capt0000.jpg */
00092   strcpy(photo_file_path.folder, "/");
00093   strcpy(photo_file_path.name, "foo.jpg");
00094 
00095   ret = gp_camera_capture(photo->cam, GP_CAPTURE_IMAGE, &photo_file_path, photo->context);
00096   if (ret<GP_OK) {
00097     fprintf(stderr, "Could not capture image  (error code %d)\n", ret);
00098     return ret;
00099   }
00100 
00101   /* create temporary file */
00102   strcpy (tmpname, "tmpfileXXXXXX");
00103   fd = mkstemp(tmpname);
00104   ret = gp_file_new_from_fd (&photofile, fd);
00105   if (ret < GP_OK) {
00106     close (fd);
00107     unlink(tmpname);
00108     return ret;
00109   }
00110 
00111   /* get image from camera */
00112   ret = gp_camera_file_get (photo->cam, photo_file_path.folder, photo_file_path.name, GP_FILE_TYPE_NORMAL, photofile, photo->context);
00113   if (ret < GP_OK) {
00114     gp_file_unref(photofile);
00115     unlink(tmpname);
00116     return ret;
00117   }
00118 
00119   ret = gp_camera_file_delete(photo->cam, photo_file_path.folder, photo_file_path.name, photo->context);
00120   if (ret<GP_OK) {
00121     fprintf(stderr, "Could delete file %s%s  (error code %d)\n", photo_file_path.folder,photo_file_path.name,ret);
00122     goto out;
00123   }
00124 
00125   if(photo_image_read(image,tmpname))
00126     ret=GP_OK;
00127   else
00128     ret=-1;
00129 
00130   out:
00131   gp_file_free(photofile);
00132   unlink(tmpname);
00133   return (ret==GP_OK);
00134 }
00135 
00136 
00137