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<blockquote data-quote="hirscho" data-source="post: 524225" data-attributes="member: 28029">Hi MartinThanks a lot for the fast reply. Things getting clearer now. I thought by &quot;Black Bar Detection 4 HD&quot; only the left bar is meant for HD transmission where an 4:3 picture is embedded in an 16:9 video. Isn't HD material always transmitted in 16:9 (1280x720, 1920x1080p, 1920x1080i)? So why checking for blach bars on the top/bottom there? The most common matroska movies I know have an width of 1080 or 1920 pixel and dependent on the format a variable high, but you do not need to detect bars there on the top/bottom. On the other side I cannot image any (SD-)video format, where you got left/right bars except for this special HD case. Of course in the internet you could find any format, even a bad transcoded DivX movie with a wrong AR, that you have to force manually in a 14:9 zoom. So, I would go for the 99% case with the lowest performance impact. ;-)OliverEdit: I like the idea of bazzz to go for the width (~1200) to differentiate between SD/HD as it is less variable.</blockquote>

[QUOTE="hirscho, post: 524225, member: 28029"] Hi Martin Thanks a lot for the fast reply. Things getting clearer now. I thought by "Black Bar Detection 4 HD" only the left bar is meant for HD transmission where an 4:3 picture is embedded in an 16:9 video. Isn't HD material always transmitted in 16:9 (1280x720, 1920x1080p, 1920x1080i)? So why checking for blach bars on the top/bottom there? The most common matroska movies I know have an width of 1080 or 1920 pixel and dependent on the format a variable high, but you do not need to detect bars there on the top/bottom. On the other side I cannot image any (SD-)video format, where you got left/right bars except for this special HD case. Of course in the internet you could find any format, even a bad transcoded DivX movie with a wrong AR, that you have to force manually in a 14:9 zoom. So, I would go for the 99% case with the lowest performance impact. ;-) Oliver Edit: I like the idea of bazzz to go for the width (~1200) to differentiate between SD/HD as it is less variable. [/QUOTE]

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