[MPlayer-dev-eng] [PATCH] vf_ass: remove READABLE flag

[Reimar Döffinger]

On 5 Sep 2012, at 03:45, Xidorn Quan <quanxunzhen at gmail.com> wrote:
> Hi,
> 
> I read the comment for MP_IMGFLAG_READABLE, and didn't think that
> vf_ass need a buffer to be readable across frames. It always requests
> a new buffer in get_image or put_image. Additionally, IMGTYPE_TEMP
> also indicates that buffer can be write-only.

I think that comment is misleading. READABLE at least nowadays is also used to indicate that a significant amount of data will be read by the filter.
Its purpose is to indicate that using non-cacheable video memory as a backing buffer would be a really bad idea.