[FFmpeg-devel] [PATCH] hevc_ps: verify P/T/L information

Mickaël Raulet mraulet at gmail.com
Sun Aug 10 17:58:19 CEST 2014

Le 10 août 2014 à 15:48, Michael Niedermayer <michaelni at gmx.at> a écrit :

> On Sun, Aug 10, 2014 at 03:16:23PM +0200, Christophe Gisquet wrote:
>> Hi,
>> 2014-08-10 14:42 GMT+02:00 Ronald S. Bultje <rsbultje at gmail.com>:
>>> Are we using the checked bitstream reader? If we are, we're fine already...
>> I think we are. On the other hand, it seems the top caller,
>> ff_hevc_decode_nal_vps, is never checking if we have read past the
>> bitstream end. Shouldn't this be checked at the very end? Hitting the
>> bitstream end yet not reporting invalid data at some point looks weird
>> to me.
>> So, I'm just not sure this always yields vps/sps/... info, so catching
>> it might be good. On the other hand, this doesn't help catching bugs
>> in the code elsewhere.
>>> If not, maybe we should, because let's be honest, getbits is only in
>>> headers, so it's not particularly performance-sensitive.
>> And this is high-level syntax (think sps), so indeed.
> agree with all
> should i apply the patch or apply something else ?

This can be applied.


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