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lavfi/ocv: fix crash with no dilate arguments.

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This commit is contained in:
Clément Bœsch 2013-04-12 13:01:17 +02:00
parent 490786c02e
commit f16a6f667c
1 changed files with 7 additions and 6 deletions
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13
libavfilter/vf_libopencv.c
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@ -261,17 +261,18 @@ static av_cold int dilate_init(AVFilterContext *ctx, const char *args)
const char *buf = args;
int ret;
dilate->nb_iterations = 1;
if (args)
kernel_str = av_get_token(&buf, "|");
if ((ret = parse_iplconvkernel(&dilate->kernel,
*kernel_str ? kernel_str : default_kernel_str,
ctx)) < 0)
else
kernel_str = av_strdup(default_kernel_str);
if (!kernel_str)
return AVERROR(ENOMEM);
if ((ret = parse_iplconvkernel(&dilate->kernel, kernel_str, ctx)) < 0)
return ret;
av_free(kernel_str);
sscanf(buf, "|%d", &dilate->nb_iterations);
if (!buf || sscanf(buf, "|%d", &dilate->nb_iterations) != 1)
dilate->nb_iterations = 1;
av_log(ctx, AV_LOG_VERBOSE, "iterations_nb:%d\n", dilate->nb_iterations);
if (dilate->nb_iterations <= 0) {
av_log(ctx, AV_LOG_ERROR, "Invalid non-positive value '%d' for nb_iterations\n",