[FFmpeg-devel] size=0, but av_malloc(1)

[Ronald S. Bultje]

Hi,

On Wed, Mar 23, 2016 at 8:32 AM, Ronald S. Bultje <rsbultje at gmail.com>
wrote:

> Hi,
>
> On Wed, Mar 23, 2016 at 2:43 AM, Chris Cunningham <
> chcunningham at chromium.org> wrote:
>
>> Hey Group,
>>
>> I'm seeing an interesting pattern [0][1] where we allocate 1 byte in
>> places
>> where I would expect no allocation to be necessary. Why is this being
>> done?
>>
>> [0] https://github.com/FFmpeg/FFmpeg/blob/master/libavutil/mem.c#L136
>> [1]
>>
>> https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/oggparsevorbis.c#L286
>
>
> On certain versions of Mac, posix_memalign() with align=32 returns
> corrupted addresses [1]. This is a workaround for that bug.
>

Crap, sorry, I meant align=32 and size=0.

Ronald