avformat/utils: Ensure that AVFMT_FLAG_CUSTOM_IO is set before use

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ba631b791435c395361e2026fc7419b341e57813)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 1ab8bb6..d1e0f71 100644 (file)
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -418,6 +418,9 @@ int avformat_open_input(AVFormatContext **ps, const char *filename,
     if (options)
         av_dict_copy(&tmp, *options, 0);
 
+    if (s->pb) // must be before any goto fail
+        s->flags |= AVFMT_FLAG_CUSTOM_IO;
+
     if ((ret = av_opt_set_dict(s, &tmp)) < 0)
         goto fail;