Re: [FFmpeg-devel] [PATCH v13 3/4] avcodec/libjxl: add Jpeg XL encoding via libjxl

[Anton Khirnov <anton@khirnov.net>]

Quoting Hendrik Leppkes (2022-04-09 17:44:45)
> > >
> > > Also, pointers from av_malloc() cannot be passed to av_realloc(). You
> > > need to allocate it with av_realloc() in the first place.
> >
> > Is this documented? afaik realloc() can be used with malloc'd pointers.
> > It will, i assume, also realloc it the first time you call it even if
> > you request the exact same amount of memory malloc already allocated.
> > But in any case it's hardly a problem if he can just use av_realloc the
> > first time.
> 
> realloc can work with malloc, but thats not guaranteed with every form
> of aligned memory allocator.
> 
> That said, I don't think any platform where this is currently a
> problem is known, and we likely have this issue in a few areas of the
> code.
> The documentation of this limitation was removed in 2016
> (21f70940ae106bfffa07e73057cdb4b5e81a767a)

I remember this used to be an issue in the past. If it isn't anymore
then disregard my comment.

-- 
Anton Khirnov
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