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| author | James Almer <jamrial@gmail.com> | 2018-07-28 00:51:57 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2018-07-28 11:14:19 -0300 |
| commit | 3258cc6507a2012d54889ce5f8efbde7e81d927d (patch) | |
| tree | 6dcd48e727b097716e5de375db9f6b7a150d926a | |
| parent | bed125b7108481574f36fdd6ee699b27354602e8 (diff) | |
| download | ffmpeg-3258cc6507a2012d54889ce5f8efbde7e81d927d.tar.gz | |
avcodec/bitstream_filters: check the input argument of av_bsf_get_by_name() for NULL
Fixes crashes like "ffmpeg -h bsf" caused by passing NULL to strcmp()
Signed-off-by: James Almer <jamrial@gmail.com>
| -rw-r--r-- | libavcodec/bitstream_filters.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/bitstream_filters.c b/libavcodec/bitstream_filters.c index c21373621c..3433921554 100644 --- a/libavcodec/bitstream_filters.c +++ b/libavcodec/bitstream_filters.c @@ -78,6 +78,9 @@ const AVBitStreamFilter *av_bsf_get_by_name(const char *name) const AVBitStreamFilter *f = NULL; void *i = 0; + if (!name) + return NULL; + while ((f = av_bsf_iterate(&i))) { if (!strcmp(f->name, name)) return f; |