Default period 0 (no needing return) between each images

i_pngfile/i_pngfile.cpp

@@ -37,7 +37,7 @@ int main(int argc, char**argv){
     blc_program_add_option(&format_str, 'f', "format", "NDEF|Y800|RGB3|RGBA", "format of the desired image (NDEF for native format of the png)", "NDEF");
     blc_program_add_option(&images_nb_str, 'n', "number", "integer", "number of images to load (need: file format like: filename%d.png)", NULL);
     blc_program_add_option(&output_name, 'o', "output", "blc_channel-out", "Name of the channel", DEFAULT_OUTPUT_NAME);
-    blc_program_add_option(&period_str, 'p', "period", "integer", "refresh period in ms (-1 for blocking)", "-1");
+    blc_program_add_option(&period_str, 'p', "period", "integer", "refresh period in ms (-1 for blocking and waiting return)", "0");
     blc_program_add_option(&type_str, 't', "type", "NDEF|UIN8|INT8|FL32", "type of the data (NDEF for native type of png)", "NDEF");
     blc_program_add_parameter(&filename, "filename", 1, "filename of the image", NULL);
     blc_program_init(&argc, &argv, blc_quit);
@@ -45,7 +45,7 @@ int main(int argc, char**argv){
     
     if (filename==NULL){
         blc_program_args_display_help();
-        EXIT_ON_ERROR("You need to specify a filename: -F<filename>");
+        EXIT_ON_ERROR("You need to specify a filename: <filename>");
     }
     format=STRING_TO_UINT32(format_str);
     type=STRING_TO_UINT32(type_str);
@@ -60,12 +60,8 @@ int main(int argc, char**argv){
         SSCANF(1, images_nb_str, "%d", &images_nb);
         image_id=0;
         SPRINTF(final_filename, filename, image_id);
-        image_id++;
-    }
-    else {
-        STRCPY(final_filename, filename);
-        images_nb=1;
     }
+    else STRCPY(final_filename, filename);
     
     //Only the properties are defined, the data is not allocated.
     blc_image_def_with_png_file(&output, final_filename, type, format);
@@ -76,17 +72,15 @@ int main(int argc, char**argv){
     blc_loop_try_add_posting_semaphore(output.sem_new_data);
     
     BLC_COMMAND_LOOP(period){
+        if (images_nb_str){
+            if ( image_id == images_nb-1) blc_command_ask_quit();
+            else {
+                SPRINTF(final_filename, filename, image_id);
+                image_id++;
+            }
+        }
         //If we have a number of images to load and we have not finish
         blc_image_update_with_png_file(&output, final_filename);
-        if (images_nb_str){
-		if ( image_id == images_nb-1) blc_command_ask_quit();
-		else {
-        	    SPRINTF(final_filename, filename, image_id);
-        	    image_id++;
-	        }
-	}	
     }
-    
-    
     return EXIT_SUCCESS;
 }