2016-01-09, 00:51
Question.
There are two and a half-formats of Top-and-Bottom supported over HDMI AIUI :
1. HTAB flagged as 2D. This is what most non-3D players do when playing 3D HTAB content. They output a 2D 1920x1080 or 1280x720 images with 1920x540 or 1280x360 strips 2:1 vertically compressed with each eye-feed on top of each other. The HDMI flagging is for a 2D source and to display in 3D you have to manually select HTAB mode on your HDTV.
2. HTAB flagged as 3D. Output as above, but with the HDMI signal also containing a flag that tells the display that the content is HTAB and the display can then automatically switch into HTAB mode.
3. FTAB (which I think has to be flagged as 3D). This is 1920x2160 or 1280x1440 HDMI output - similar to frame packed 3D but without the blanking between the two frames. I believe it is a valid HDMI output mode, and whilst not as standard as Frame Packed output it should offer identical picture quality. There is a valid HDMI flag to signal its presence, which would automatically trigger compatible displays into the correct mode.
Do we know what the Vidon.Me solution actually outputs? 1, 2 or 3? The difference between 1 and 2 is obvious - your HDTV will automatically switch with 2 but not with 1. The difference between 1/2 and 3 should also be obvious as you will get double the vertical resolution with 3 (i.e. the same as Frame Packed). This should be pretty clear on a decent display - as you will be going from SD to HD resolution vertically (though you won't see the difference on a 1080p Passive HDTV display as this will be limited to 540p res anyway...)
There are two and a half-formats of Top-and-Bottom supported over HDMI AIUI :
1. HTAB flagged as 2D. This is what most non-3D players do when playing 3D HTAB content. They output a 2D 1920x1080 or 1280x720 images with 1920x540 or 1280x360 strips 2:1 vertically compressed with each eye-feed on top of each other. The HDMI flagging is for a 2D source and to display in 3D you have to manually select HTAB mode on your HDTV.
2. HTAB flagged as 3D. Output as above, but with the HDMI signal also containing a flag that tells the display that the content is HTAB and the display can then automatically switch into HTAB mode.
3. FTAB (which I think has to be flagged as 3D). This is 1920x2160 or 1280x1440 HDMI output - similar to frame packed 3D but without the blanking between the two frames. I believe it is a valid HDMI output mode, and whilst not as standard as Frame Packed output it should offer identical picture quality. There is a valid HDMI flag to signal its presence, which would automatically trigger compatible displays into the correct mode.
Do we know what the Vidon.Me solution actually outputs? 1, 2 or 3? The difference between 1 and 2 is obvious - your HDTV will automatically switch with 2 but not with 1. The difference between 1/2 and 3 should also be obvious as you will get double the vertical resolution with 3 (i.e. the same as Frame Packed). This should be pretty clear on a decent display - as you will be going from SD to HD resolution vertically (though you won't see the difference on a 1080p Passive HDTV display as this will be limited to 540p res anyway...)
