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

Ganesh Ajjanagadde gajjanag at mit.edu
Mon Jan 4 06:49:33 CET 2016


On Sun, Jan 3, 2016 at 1:30 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
>
>> Ganesh Ajjanagadde <gajjanag <at> mit.edu> writes:
>>
>> > No one has told me what is interesting
>>
>> Did you look at tickets #4441 or #4085?
>
> Or ticket #4829 or a j2k issue?

Thanks a lot for taking the time to point these out. They have all
been noted. Unfortunately, I have too many things on my list now. 4829
may be what I tackle first; it may take a while though.

I hope the following is helpful.
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.

>
> Carl Eugen
>
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