This can easily happen when the caller is using a custom AVIOContext.
Behave as if the filename was an empty string in this case.
---
libavformat/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/utils.c b/libavformat/utils.c
index d7ba5a7..5450dc4 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -557,7 +557,7 @@ int avformat_open_input(AVFormatContext **ps, const char
*filename, AVInputForma
}
s->duration = s->start_time = AV_NOPTS_VALUE;
- av_strlcpy(s->filename, filename, sizeof(s->filename));
+ av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
/* allocate private data */
if (s->iformat->priv_data_size > 0) {
--
1.7.10
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