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lavu/opt: fix crash in av_opt_next() in case the class has no options

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Stefano Sabatini 2012-08-09 11:50:58 +02:00
parent 7fd467f708
commit a6d6b8a200
1 changed files with 2 additions and 1 deletions
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3
libavutil/opt.c
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@ -59,7 +59,8 @@ const AVOption *av_next_option(void *obj, const AVOption *last)
const AVOption *av_opt_next(void *obj, const AVOption *last) const AVOption *av_opt_next(void *obj, const AVOption *last)
{ {
AVClass *class = *(AVClass**)obj; AVClass *class = *(AVClass**)obj;
if (!last && class->option[0].name) return class->option; if (!last && class->option && class->option[0].name)
return class->option;
if (last && last[1].name) return ++last; if (last && last[1].name) return ++last;
return NULL; return NULL;
} }