Re: [FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-04 Thread Aaron Boxer
On Fri, Aug 4, 2017 at 12:23 PM, Francesco, Cuzzocrea < france...@bltitalia.com> wrote: > Sorry. I intend 32x128 OK, that sounds better :) > > > On 04/08/2017 10.21, Francesco, Cuzzocrea wrote: > >> The standard ISO/IEC FCD15444-1 specify limits for the exponent values >> and their

Re: [FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-04 Thread Francesco, Cuzzocrea
Sorry. I intend 32x128 On 04/08/2017 10.21, Francesco, Cuzzocrea wrote: The standard ISO/IEC FCD15444-1 specify limits for the exponent values and their sum. That is codeblock size xcb and ycb are defined as: xcb = 2^(xvalue+2) and ycb = 2^(yvalue+2) with values that ranges from a

Re: [FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-04 Thread Francesco, Cuzzocrea
The standard ISO/IEC FCD15444-1 specify limits for the exponent values and their sum. That is codeblock size xcb and ycb are defined as: xcb = 2^(xvalue+2) and ycb = 2^(yvalue+2) with values that ranges from a minimum of 2 and a maximum of 10. Moreover the sum should be less or equal to 12

Re: [FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-03 Thread Michael Niedermayer
On Thu, Aug 03, 2017 at 03:58:22PM +0200, france...@bltitalia.com wrote: > From: Francesco Cuzzocrea > > Hi to all > I've made some simple changes tha allow encoding with variable codeblock > size. Default value are the same as previous (16X16) but now setting them > to

Re: [FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-03 Thread Aaron Boxer
On Aug 3, 2017 9:58 AM, wrote: From: Francesco Cuzzocrea Hi to all I've made some simple changes tha allow encoding with variable codeblock size. Default value are the same as previous (16X16) but now setting them to 64x128 make generated

[FFmpeg-devel] [PATCH] JPEG2000 encoding with variable codeblock size

2017-08-03 Thread francesco
From: Francesco Cuzzocrea Hi to all I've made some simple changes tha allow encoding with variable codeblock size. Default value are the same as previous (16X16) but now setting them to 64x128 make generated codestream compatible with Analog Devices ADV212 video codec.