search for: ayuv

On Tue, Nov 08, 2005 at 06:08:25PM +0800, illiminable wrote: > Why not just make it OggRawFOURCC, do we really need one stream format for > rgb, and one for yuv ? [snip] > I just meant oggRaw, not fourcc. Oh, thank god you corrected this. :-) I was contemplating an "OggVid" format, and here is why I'm steering against it (though, yes, this has been a topic of

On Tue, Nov 08, 2005 at 06:08:25PM +0800, illiminable wrote: > Why not just make it OggRawFOURCC, do we really need one stream format for > rgb, and one for yuv ? [snip] > I just meant oggRaw, not fourcc. Oh, thank god you corrected this. :-) I was contemplating an "OggVid" format, and here is why I'm steering against it (though, yes, this has been a topic of

...ch is most similar to theoras output)... then there is IYUV, which is the same, except the U and V planes are in the opposite order. Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then there's AYUV, which has a 4th alpha channel. Then there's the issue of where the samples lie on a grid in relation to the pixels centre, do the samples centre over the pixels in the horizontal or vertical direction, or do they fall at the mid point between 2 pixel centres. And then there's the colo...

...ch is most similar to theoras output)... then there is IYUV, which is the same, except the U and V planes are in the opposite order. Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then there's AYUV, which has a 4th alpha channel. Then there's the issue of where the samples lie on a grid in relation to the pixels centre, do the samples centre over the pixels in the horizontal or vertical direction, or do they fall at the mid point between 2 pixel centres. And then there's the colo...

On Tue, Nov 08, 2005 at 09:36:52PM +0800, illiminable wrote: > > Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU > (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then > there's AYUV, which has a 4th alpha channel. We will only be doing [A]YUV ordered planar encoding, no other order, not packed using one of several methods. You're right, there's simply too many different possibilities, and the software implementation is too complex. > Then there's the issu...

On Tue, Nov 08, 2005 at 09:36:52PM +0800, illiminable wrote: > > Then there's YUY2 which is interleaved Y0 U0 Y1 V0 Y2 U1 Y3 V1, and YVYU > (Y0 V0 Y1 U0 Y2 V1 Y3 U1), and UYVY (U0 Y0 V0 Y1 U0 Y2 V0 Y3)... and then > there's AYUV, which has a 4th alpha channel. We will only be doing [A]YUV ordered planar encoding, no other order, not packed using one of several methods. You're right, there's simply too many different possibilities, and the software implementation is too complex. > Then there's the issu...