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authorAnton Khirnov <anton@khirnov.net>2013-03-17 16:14:58 +0100
committerReinhard Tartler <siretart@tauware.de>2013-04-06 11:39:11 +0200
commit34ecaf6e888886badaea6470aa0e9e76595fb8fd (patch)
tree862920d2628148f6f739a7fc86222227e25ae7f2 /libavfilter/graphparser.c
parent83553838027401b6e2c415d6bfbf386404400b8e (diff)
downloadffmpeg-34ecaf6e888886badaea6470aa0e9e76595fb8fd.tar.gz
avfiltergraph: check for sws opts being non-NULL before using them.
Avoid snprintfing a NULL pointer. CC: libav-stable@libav.org (cherry picked from commit 6e3c13a559e9ff300b5ca60e1d503e594d7f055c) Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Diffstat (limited to 'libavfilter/graphparser.c')
-rw-r--r--libavfilter/graphparser.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavfilter/graphparser.c b/libavfilter/graphparser.c
index 04339c8138..7ce60c16e0 100644
--- a/libavfilter/graphparser.c
+++ b/libavfilter/graphparser.c
@@ -123,7 +123,8 @@ static int create_filter(AVFilterContext **filt_ctx, AVFilterGraph *ctx, int ind
return ret;
}
- if (!strcmp(filt_name, "scale") && args && !strstr(args, "flags")) {
+ if (!strcmp(filt_name, "scale") && args && !strstr(args, "flags") &&
+ ctx->scale_sws_opts) {
snprintf(tmp_args, sizeof(tmp_args), "%s:%s",
args, ctx->scale_sws_opts);
args = tmp_args;