[FFmpeg-trac] #3531(undetermined:closed): ffmpeg hangs converting a possibly broken avi file

[FFmpeg]

#3531: ffmpeg hangs converting a possibly broken avi file
-------------------------------------+-------------------------------------
             Reporter:  hxuanyu      |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  avi          |               Resolution:  fixed
  deadlock regression                |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by DonMoir):

 Hangs up when trying to build index for me.

 {{{
 static int avi_read_header(AVFormatContext *s)
 {
     ...
         case MKTAG('i', 'n', 'd', 'x'):
             i = avio_tell(pb);
             if (pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX) &&
                 avi->use_odml &&
                 read_braindead_odml_indx(s, 0) < 0 &&
                 (s->error_recognition & AV_EF_EXPLODE))
                 goto fail;
             avio_seek(pb, i + size, SEEK_SET);
             break;
     ...
 }
 }}}

 This allows it to at least play. Seeking not so good :)


 {{{
         case MKTAG('i', 'n', 'd', 'x'):
             i = avio_tell(pb);
 /*
             if (pb->seekable && !(s->flags & AVFMT_FLAG_IGNIDX) &&
                 avi->use_odml &&
                 read_braindead_odml_indx(s, 0) < 0 &&
                 (s->error_recognition & AV_EF_EXPLODE))
                 goto fail;
 */
             avio_seek(pb, i + size, SEEK_SET);
             break;
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3531#comment:5>
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