[vlc-devel] [PATCH] demux: mp4: Add support for (unpaletted) raw RGB and GREY video

Alex Converse alex.converse at gmail.com
Fri Dec 18 00:16:41 CET 2015


On Thu, Dec 17, 2015 at 2:39 PM, Rémi Denis-Courmont <remi at remlab.net> wrote:
> On Thursday 17 December 2015 23:32:39 Francois Cartegnie wrote:
>> Le 17/12/2015 23:15, Alex Converse a écrit :
>> > This fixes playback of the gaming content from derf's video testset
>>
>> Sounds more correct.
>>
>> The quicktime spec gives:
>> grayscale depth = (N - 32) for N = 34, 36 and 40.
>>
>> Unsure if we have codec support for this. (fmt.video.i_bits_per_pixel ?)
>
> As far as grey scale is concerned, VLC only supports 8-bits at this point.
>
> I am not sure if there are any other depth outside of scientific or medical
> applications.
>

These would be grey 4-bit per sample and 2-bits per sample. I don't
have any samples of these so didn't really want to spend a bunch of
time fumbling in the dark.


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