Fixes: CID1591931 Explicit null dereferenced
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavdevice/dshow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c
index fd9027b1787..911b0ecc078 100644
--- a/libavdevice/dshow.c
+++ b/libavdevice/dshow.c
@@ -1373,7 +1373,7 @@ dshow_open_device(AVFormatContext *avctx, ICreateDevEnum
*devenum,
if (ctx->device_filter[otherDevType]) {
// avoid adding add two instances of the same device to the graph, one
for video, one for audio
// a few devices don't support this (could also do this check earlier
to avoid double crossbars, etc. but they seem OK)
- if (strcmp(device_filter_unique_name,
ctx->device_unique_name[otherDevType]) == 0) {
+ if (!device_filter_unique_name || strcmp(device_filter_unique_name,
ctx->device_unique_name[otherDevType]) == 0) {
av_log(avctx, AV_LOG_DEBUG, "reusing previous graph capture
filter... %s\n", device_filter_unique_name);
IBaseFilter_Release(device_filter);
device_filter = ctx->device_filter[otherDevType];
--
2.45.1
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