shithub: opus

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Validate channel count in opus_demo.

--- a/src/opus_demo.c

+++ b/src/opus_demo.c

@@ -308,13 +308,6 @@

     }

     sampling_rate = (opus_int32)atol(argv[args]);

     args++;

-    channels = atoi(argv[args]);

-    args++;

-    if (!decode_only)

-    {

-       bitrate_bps = (opus_int32)atol(argv[args]);

-       args++;

-    }

     if (sampling_rate != 8000 && sampling_rate != 12000

      && sampling_rate != 16000 && sampling_rate != 24000

@@ -325,6 +318,21 @@

         return EXIT_FAILURE;

     }

     frame_size = sampling_rate/50;

+

+    channels = atoi(argv[args]);

+    args++;

+

+    if (channels < 1 || channels > 2)

+    {

+        fprintf(stderr, "Opus_demo supports only 1 or 2 channels.\n");

+        return EXIT_FAILURE;

+    }

+

+    if (!decode_only)

+    {

+       bitrate_bps = (opus_int32)atol(argv[args]);

+       args++;

+    }

     /* defaults: */

     use_vbr = 1;