@@ -1815,6 +1815,9 @@ void opt_input_file(const char *filename)

     AVFormatParameters params, *ap = &params;

     int err, i, ret, rfps;

+    if (!strcmp(filename, "-"))

+        filename = "pipe:";

+

     /* get default parameters from command line */

     memset(ap, 0, sizeof(*ap));

     ap->sample_rate = audio_sample_rate;