[vlc-devel] [PATCH 1/4] display: no need for a local video_format_t with VOUT_DISPLAY_CHANGE_SOURCE_ASPECT

Steve Lhomme robux4 at gmail.com
Wed Aug 2 17:23:47 CEST 2017

On Wed, Aug 2, 2017 at 4:33 PM, Rémi Denis-Courmont <remi at remlab.net> wrote:
> Le keskiviikkona 2. elokuuta 2017, 9.33.35 EEST Steve Lhomme a écrit :
>> Receivers don't check the difference with the original value, they just
>> apply the new value.
> Did you check if any video output uses vd->source on another thread?

I can't tell for other calls. But in the CROP and ASPECT_RATIO one
vd->source is already modified during/after the event is called. So if
it's broken, it was broken before.

> This subtly changes the memory access rules, as the core writes the value
> before rather than after the control request.
> --
> 雷米‧德尼-库尔蒙
> https://www.remlab.net/
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