shithub: sox

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fix crash with 0 channels

--- a/src/remix.c

+++ b/src/remix.c

@@ -117,6 +117,10 @@

   if (argc && !strcmp(*argv, "-m")) p->mode = manual   , ++argv, --argc;

   if (argc && !strcmp(*argv, "-a")) p->mode = automatic, ++argv, --argc;

   if (argc && !strcmp(*argv, "-p")) p->mix_power = sox_true, ++argv, --argc;

+  if (!argc) {

+    lsx_fail("must specify at least one output channel");

+    return SOX_EOF;

+  }

   p->out_specs = lsx_calloc(p->num_out_channels = argc, sizeof(*p->out_specs));

   return parse(effp, argv, 1); /* No channels yet; parse with dummy */

 }