avfilter/af_aecho: silence "maybe uninitialized warning"

if channels is 0 it actually would be uninitialized, thus an assert with comment is added

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-07 03:07:34 +02:00
parent 0f48acf29b
commit 797762fcf3

View File

@ -190,7 +190,9 @@ static void echo_samples_## name ##p(AudioEchoContext *ctx, \
const double in_gain = ctx->in_gain; \
const int nb_echoes = ctx->nb_echoes; \
const int max_samples = ctx->max_samples; \
int i, j, chan, index; \
int i, j, chan, av_uninit(index); \
\
av_assert1(channels > 0); /* would corrupt delay_index */ \
\
for (chan = 0; chan < channels; chan++) { \
const type *s = (type *)src[chan]; \