On date Wednesday 2010-05-26 03:34:49 +0200, Michael Niedermayer wrote:
On Wed, May 26, 2010 at 12:49:54AM +0200, Stefano Sabatini wrote:
On date Sunday 2010-05-23 04:30:44 +0200, Michael Niedermayer wrote:
On Fri, May 21, 2010 at 12:19:10AM +0200, Stefano Sabatini wrote:
Hi all, this follows a thread from ffmpeg-devel: http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/109054/focus=109394
I proposed these names: B4BY (bgr4_byte) Packed BGR 1:2:1, 8bpp, (msb)1B 2G 1R(lsb) R4BY (rgb4_byte) Packed RGB 1:2:1, 8bpp, (msb)1R 2G 1B(lsb)
Other idea: bgr4_byte => B[1][2][1] rgb4_byte => R[1][2][1]
Note that I'm very satisfied with these names, maybe someone can find a better scheme.
What do you think?
i think you are missin a "not" in your sentance
Yes indeed.
and iam not sure abut the fourccs here, this format is simply inefficient to store 4bit rgb, is it used in the wild?
I have not the faintest idea, and I couldn't even manage to understand who introduced it, since it exists since the night of time of FFmpeg.
i probably added it to sws for playing with 4bit dithering
if not (its just for ffmpegs test lavfi test system we can just pick any random fourcc and treat it like some ffmpeg internal thing) either of your choices would do for that
My problem is that I need to *write* such a format in NUT, so I need a codec for that. Also to add such a tag shouldn't hurt anyway. If you have an idea for avoiding to define a tag for it and still be able to store such a format in NUT please tell (well an idea would be to make possible to define the codec tag), as for me I prefer to add these two rather than add exceptions/special cases to the FFmpeg code.
Patch updated, regards.
nut4cc.txt | 2 ++ 1 file changed, 2 insertions(+) 6e19f1c1d96011a3c5ac6716f91f1040703604bb add-bgr4-rgb4-byte-codec-tags.patch
ya ok
Applied.