id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
183,ASF/WMV partial packet change causes infinite loop,tracey_pooh,,"
hi all,

I'm new to posting bugs with FFmpeg, but have been using ffmpeg heavily for years, even customizing and patching it.  At some point, I'd like to try to work with folks to see about adding some patches.

OK, back to the ""bug"" -- granted this is a likely *heavily* poorly (and cutoff) video, but it's representative at times of the random stuff we get in our 500,000+ videos are Internet Archive / archive.org 8-)

The patch here:

http://git.videolan.org/?p=ffmpeg.git;a=blobdiff;f=libavformat/asfdec.c;h=36876fa1fd053a27a7218908dc2881ebbd298bd6;hp=843b10951127246ddbee59c811ee46311e682f01;hb=bf09a0198121467b5a79ba03363b0d1e4dbc3e58;hpb=d09b5a869fea0de5c2f43c547f8ccba8f4740293

causes ffmpeg to spin and write (seemingly) without end -- I have to kill it.

A one-line ""revert"" for part of that patch will make it stop spinning and just kind of cut off the audio like it used to,
but it'd be nice if the original diff provider / moderator to the longer change (above) could take a look and see what
they think might be best:

       if (ret != asf->packet_frag_size) {
          av_log(s, AV_LOG_ERROR, ""xxxx scrambled\n""); return ret >= 0 ? AVERROR_EOF : ret;

(that is, inserting that one line ""fixes my problem"" but likely the greater patch had other intentions to it).

Example: run
ffmpeg   -i holymatrimony.wmv  -vn    audio.wav
",defect,closed,important,avcodec,git-master,fixed,"wma, regression",,,,1,0