ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon May 27 01:52:24 2024 +0200| [175c19166824bd93b02f60c5178365014212366e] | committer: Michael Niedermayer
avdevice/dshow: Check device_filter_unique_name before use Fixes: CID1591931 Explicit null dereferenced Sponsored-by: Sovereign Tech Fund Reviewed-by: Roger Pack <rogerdp...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=175c19166824bd93b02f60c5178365014212366e --- libavdevice/dshow.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavdevice/dshow.c b/libavdevice/dshow.c index 4d587c936f..5caf282aea 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]; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
