interlaced video question for you XV experts

Jon Smirl jonsmirl at gmail.com
Thu Mar 17 20:09:37 PST 2005


On Thu, 17 Mar 2005 21:36:42 -0600, Billy Biggs <vektor at dumbterm.net> wrote:
> Benjamin Herrenschmidt (benh at kernel.crashing.org):
>   In most digital video standards though, you only have like 720x480
> images instead of the "full" 720x486 which would include the half
> scanline.  But, I don't see how which one starts the frame determines
> the order that you should play them back.  It's really orthogonal and
> something you'd decide when you're storing the media, not playing it
> back.  I believe you of course that there are storage formats which
> store NTSC and PAL differently like that.

This would take 768x483 buffer and display it on TV-OUT, right?

ModeLine "NTSCspec-59.94i" 14.318 768 784 848 910 483 484 492 525 Interlace
Modeline "720x540PAL" 15.101 720 770 842 968 540 565 570 624 Composite Interlace

These were interesting too, this is why I wanted mode selection based on names.

DTV-StandardModes
ModeLine "ATSC-480-59.94i" 11.958 640 664 736 760 480 484 492 525 Interlace
ModeLine "ATSC-480-60i" 11.97 640 664 736 760 480 484 492 525 Interlace
ModeLine "ATSC-480-59.94p" 23.916 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-60p" 23.94 640 664 736 760 480 484 492 525
ModeLine "ATSC-480a-59.94i" 11.958 640 664 736 760 480 484 492 525 Interlace
ModeLine "ATSC-480a-60i" 11.97 640 664 736 760 480 484 492 525 Interlace
ModeLine "ATSC-480a-59.94p" 23.916 640 664 736 760 480 484 492 525
ModeLine "ATSC-480a-60p" 23.94 640 664 736 760 480 484 492 525
ModeLine "ATSC-720-59.94p" 74.176 1280 1320 1376 1650 720 722 728 750
ModeLine "ATSC-720-60p" 74.25 1280 1320 1376 1650 720 722 728 750
ModeLine "ATSC-1080-59.94i" 74.176 1920 1960 2016 2200 1080 1082 1088
1125 Interlace
ModeLine "ATSC-1080-60i" 74.25 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
ModeLine "ATSC-1080-59.94p" 148.352 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-60p" 148.5 1920 1960 2016 2200 1080 1082 1088 1125

DTV-MovieModes
ModeLine "ATSC-480-71.93p" 28.699 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-72p" 28.728 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-119.88p" 47.832 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-120p" 47.88 640 664 736 760 480 484 492 525
ModeLine "ATSC-720-71.93p" 89.011 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-72p" 89.1 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-119.88p" 148.351 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-120p" 148.5 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-1080-71.93i" 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
ModeLine "ATSC-1080-72i" 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
ModeLine "ATSC-1080-71.93p" 178.022 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-72p" 178.2 1920 1960 2016 2200 1080 1082 1088 1125

-- 
Jon Smirl
jonsmirl at gmail.com



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