tree 2c0df6c184b180fcf252f94a6389a23e42d04666
parent d10755e95c49f5ec925e70598877c82ad865a189
author Mark Harris <mark.hsj@gmail.com> 1417106889 -0800
committer Jean-Marc Valin <jmvalin@jmvalin.ca> 1417107854 -0500

multistream: improve arg check

Avoid undefined behavior (signed arithmetic overflow) or
implementation-defined behavior (malloc(0)) on out-of-range arguments,
e.g. opus_multistream_encoder_create(48000, 2, 2147483647, 1, ...)
or opus_multistream_surround_encoder_create(48000, 3, 0, ...).

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>