+#if defined(WIN32_PIPE_TO_PROCESSES)
+
+ string command;
+
+ command=strprintf("ffmpeg -i \"%s\" -an -f image2pipe -vcodec ppm -\n",filename.c_str());
+
+ file=popen(command.c_str(),POPEN_BINARY_READ_TYPE);
+
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+