[FFmpeg-devel] [PATCH 1/2] lavc/pcm_tablegen: slight speedup of table generation

Andreas Cadhalpun andreas.cadhalpun at googlemail.com
Mon Jan 4 15:13:43 CET 2016

Hi Ganesh,

On 04.01.2016 06:49, Ganesh Ajjanagadde wrote:
> Generally, my strengths are in algorithmic/mathematical/numerical
> improvements. I have a strong interest in security (both its
> "practical" and "theoretical" variants), but with nowhere near the
> same level of knowledge.
> Clarifications: by algorithmic improvements, I do not usually count
> asm code, but make exceptions in some cases. In particular, I have
> minimal knowledge of assembly and minimal motivation in learning it.
> However, I may examine at some point cases where I am convinced that a
> compiler can't do the needful.
> By theoretical aspects of security, I refer to defensive programming,
> some forms of undefined behavior (e.g rint64_clip, many ubsan
> failures), and other such things such as those flagged by Coverity. By
> practical aspects of security, I refer to things like fuzzing crashes,
> other ubsan failures, and other things flagged by Coverity or found by
> audit.

If you're interested in fixing some forms of undefined behavior (which?)
I can send you a couple of samples triggering them.
I have far too many of these to be able to fix them any time soon.

Best regards,

More information about the ffmpeg-devel mailing list