Prevent segfault if iformat was not yet initialized.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago · 9b01a8ad5e
parent 366605ff5d
commit 9b01a8ad5e
1 changed files with 2 additions and 2 deletions
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@ -2809,10 +2809,10 @@ void av_close_input_file(AVFormatContext *s)
 void avformat_close_input(AVFormatContext **ps)
 {
    AVFormatContext *s = *ps;
-    AVIOContext *pb = (s->iformat->flags & AVFMT_NOFILE) || (s->flags & AVFMT_FLAG_CUSTOM_IO) ?
+    AVIOContext *pb = (s->iformat && (s->iformat->flags & AVFMT_NOFILE)) || (s->flags & AVFMT_FLAG_CUSTOM_IO) ?
                       NULL : s->pb;
    flush_packet_queue(s);
-    if (s->iformat->read_close)
+    if (s->iformat && (s->iformat->read_close))
        s->iformat->read_close(s);
    avformat_free_context(s);
    *ps = NULL;