[FFmpeg-user] buffer underflow - processing VOB files

[Paul B Mahol]

On 8/2/18, Bob DeCarlo <bobs2002mail-at-yahoo.com at ffmpeg.org> wrote:
>
>
>
> I located the fix for the core dump issue and create a patch:
>
> $ git diff 91bb871376730a2394ed0ae1a3fd4295977002d3
> 0b86ea03d8415b5a3a6b07f3012a8097bca26ea5 >p.patch
> Next, I applied this patch to commits and found this commit to be the one
> that causes by buffer under-run issue:
>
> $ git checkout ae9297097696f3d06417a6e8a5368d5f38a6edb4$ git apply p.patch #
> fixes core dump
> ... configure and make...
> ./ffmpeg -i ~/Videos/in.VOB -ss 50 -target ntsc-dvd -flags +cgop+ilme+ildct
> -alternate_scan 1 -top 1 -g 15 -sc_threshold 1000000000 -y out.VOB -v debug
> The issue is reproduced and I believe
> ae9297097696f3d06417a6e8a5368d5f38a6edb4 is where the issue was introduced,
> just after e5819fa62930966e6fb905cef21c985b91631d87.  I see from the code
> that some changes were made in ac3.

Please share patch and input files.