On Fri, Feb 20, 2015 at 12:11:10PM +0200, Martin Storsjö wrote:
> On Thu, 19 Feb 2015, Diego Biurrun wrote:
> >On Thu, Feb 19, 2015 at 10:34:03PM +0200, Martin Storsjö wrote:
> >>The if statement just above checks the same, so there's no possibility
> >>that src_len ends up negative.
> >
> >I agree about the if-statement, but it seems src_len can end up negative.
> >Here's a shortened version of the block:
> >
> > while (src_len > 2) {
> > uint16_t nal_size = AV_RB16(src);
> > src_len -= 2;
> > src_len -= nal_size;
> > if (src_len < 0)
> > av_log(ctx, AV_LOG_ERROR,
> > "Consumed more bytes than we got! (%d)\n", src_len);
> >
> >Looks like src_len can end up negative to me ...
>
> Oh, right.
>
> So, fine if I change the commit message like this?
>
> ---
> rtpdec_h264: Remove an unnecessary check
>
> If src_len is too small for nal_size, we already print a warning above, and
> the next step is to check the while loop condition anyway, so this one
> serves no purpose.
I'm fine with that or even a much more terse version, but we shouldn't
make any false claims in the log message :)
Diego
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