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avutil/opt: dont crash on av_opt_set_dict() with NULL

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This allows calling the function without the need to check if the
dictionary contains any entries

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-03-30 14:58:46 +02:00
parent 31ac3f306c
commit d9a3501c33
1 changed files with 3 additions and 0 deletions
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3
libavutil/opt.c
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@ -1421,6 +1421,9 @@ int av_opt_set_dict(void *obj, AVDictionary **options)
AVDictionary *tmp = NULL;
int ret = 0;
if (!options)
return 0;
while ((t = av_dict_get(*options, "", t, AV_DICT_IGNORE_SUFFIX))) {
ret = av_opt_set(obj, t->key, t->value, 0);
if (ret == AVERROR_OPTION_NOT_FOUND)