[issue2003] (libavformat) 0x00e8cfac in av_open_input_stream () from /usr/lib/libavformat.so.52

[Ernst Albrecht Köstlin]

Ernst Albrecht Köstlin <m...@alks.org> added the comment:

Doing so won't free the already allocated structures AVFormatContext's "stream"
array entries are pointing to, neither would it set AVFormatContext's nb_stream
to 0.

So Id propose the following:

--- libavformat/ffmdec.c        2010-07-20 21:19:05.000000000 +0200
+++ libavformat/ffmdec_patched.c        2010-07-20 21:18:48.000000000 +0200
@@ -251,6 +251,7 @@
     url_fseek(pb, ptr, SEEK_SET);
 }
 
+static int ffm_close(AVFormatContext *);
 
 static int ffm_read_header(AVFormatContext *s, AVFormatParameters *ap)
 {
@@ -381,12 +382,11 @@
     ffm->first_packet = 1;
     return 0;
  fail:
+    ffm_close(s);
     for(i=0;i<s->nb_streams;i++) {
-        st = s->streams[i];
-        if (st) {
-            av_free(st);
-        }
+        av_freep(&s->streams[i]);
     }
+    s->nb_streams = 0;
     return -1;
 }

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