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authorDerek Buitenhuis <derek.buitenhuis@gmail.com>2017-04-20 13:14:42 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2017-04-20 18:07:32 +0200
commitcbd3a68f3e1c2d1679370301eb5e1a32a2df64fe (patch)
tree13c9ea03a71c486b46ae7e8a68c7cbc2952f8bd5 /libavformat
parent0f05f2c7e67949ce77de3cf7013f7d4da1c3e046 (diff)
avformat/webmdashenc: Require the 'adaptation_sets' option to be set
This seems to be non-optional, and if the muxer is run without it, strlen() is run on NULL, causing a segfault. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat')
-rw-r--r--libavformat/webmdashenc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/webmdashenc.c b/libavformat/webmdashenc.c
index 602726caf9..71f01fd770 100644
--- a/libavformat/webmdashenc.c
+++ b/libavformat/webmdashenc.c
@@ -433,6 +433,10 @@ static int parse_adaptation_sets(AVFormatContext *s)
char *p = w->adaptation_sets;
char *q;
enum { new_set, parsed_id, parsing_streams } state;
+ if (!w->adaptation_sets) {
+ av_log(s, AV_LOG_ERROR, "The 'adaptation_sets' option must be set.\n");
+ return AVERROR(EINVAL);
+ }
// syntax id=0,streams=0,1,2 id=1,streams=3,4 and so on
state = new_set;
while (p < w->adaptation_sets + strlen(w->adaptation_sets)) {