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+---- Thread: Request for a couple more aspect ratio flags (/showthread.php?tid=121298)
Request for a couple more aspect ratio flags - gabbott - 2012-01-28
Would it be possible to add a couple more flags for a couple more aspect ratios?
2.55 : 1 - cinemascope
2.76 : 1 - 70 mm (MGM Camera 65 / Ultra Panavision 70)
Maybe it's an odd request, but I really like having as accurate as possible movie info.
If there is any info you need from a couple examples, I can supply.
- ronie - 2012-01-28
unless they are supported by xbmc (i don't think they are?) there's nothing i can do.
xbmc provides the aspect-ratio info to the skin
- gabbott - 2012-01-28
ronie Wrote:unless they are supported by xbmc (i don't think they are?) there's nothing i can do.
xbmc provides the aspect-ratio info to the skin
Oh, I thought it was skin dependent. For example, confluence doesn't differentiate between 16:9 and 1.85:1 titles (it just lumps them all as 16:9) but I saw that other skins like T! did differentiate them.
I exported one of my titles that has a wider ratio as a single file and this is the stream info:
Code:
<streamdetails>
<video>
<codec>h264</codec>
<aspect>2.758621</aspect>
<width>1280</width>
<height>464</height>
<durationinseconds>9569</durationinseconds>
</video>
<audio>
<codec>dca</codec>
<language>eng</language>
<channels>6</channels>
</audio>
<subtitle>
<language>eng</language>
</subtitle>
</streamdetails>- ronie - 2012-01-28
i had a peek at the xbmc source-code, so you can see which acpect-ratio values can be used by xbmc:
PHP Code:
// Given that we're never going to be able to handle every single possibility in
// aspect ratios, particularly when cropping prior to video encoding is taken into account
// the best we can do is take the "common" aspect ratios, and return the closest one available.
// The cutoffs are the geometric mean of the two aspect ratios either side.
if (fAspect < 1.4859f) // sqrt(1.33*1.66)
return "1.33";
else if (fAspect < 1.7190f) // sqrt(1.66*1.78)
return "1.66";
else if (fAspect < 1.8147f) // sqrt(1.78*1.85)
return "1.78";
else if (fAspect < 2.0174f) // sqrt(1.85*2.20)
return "1.85";
else if (fAspect < 2.2738f) // sqrt(2.20*2.35)
return "2.20";
return "2.35";
- gabbott - 2012-01-28
ronie Wrote:i had a peek at the xbmc source-code, so you can see which acpect-ratio values can be used by xbmc:
Ok, thanks for checking on that. Looks like xbmc does have to support the aspect ratio for a skin to display it.
- Martijn - 2012-01-28
ronie Wrote:i had a peek at the xbmc source-code, so you can see which acpect-ratio values can be used by xbmc:
Maybe the values are still remainders from the XBOX days and may need updating according to new available techniques?
- gabbott - 2012-01-28
Martijn Wrote:Maybe the values are still remainders from the XBOX days and may need updating according to new available techniques?
That's a good point
- ronie - 2012-01-28
which additional ones would be useful?
http://en.wikipedia.org/wiki/Aspect_ratio_%28image%29#Previous_and_currently_used_aspect_ratios
- gabbott - 2012-01-28
ronie Wrote:which additional ones would be useful?
http://en.wikipedia.org/wiki/Aspect_ratio_%28image%29#Previous_and_currently_used_aspect_ratios
For what I've come across, I'd personally like to see:
2.55:1 and 2.76:1
used mostly during the 50's and 60's with some titles, Ben-hur, Lady and the Tramp, It's a mad mad mad world...
RE: - adrian ballard - 2012-06-19
(2012-01-28, 21:27)ronie Wrote: i had a peek at the xbmc source-code, so you can see which acpect-ratio values can be used by xbmc:
PHP Code:// Given that we're never going to be able to handle every single possibility in
// aspect ratios, particularly when cropping prior to video encoding is taken into account
// the best we can do is take the "common" aspect ratios, and return the closest one available.
// The cutoffs are the geometric mean of the two aspect ratios either side.
if (fAspect < 1.4859f) // sqrt(1.33*1.66)
return "1.33";
else if (fAspect < 1.7190f) // sqrt(1.66*1.78)
return "1.66";
else if (fAspect < 1.8147f) // sqrt(1.78*1.85)
return "1.78";
else if (fAspect < 2.0174f) // sqrt(1.85*2.20)
return "1.85";
else if (fAspect < 2.2738f) // sqrt(2.20*2.35)
return "2.20";
return "2.35";
Where exactly is this snippet of code located if i wanted to play around with it?
RE: - ronie - 2012-06-19
(2012-06-19, 02:58)adrian ballard Wrote: Where exactly is this snippet of code located if i wanted to play around with it?
xbmc/utils/StreamDetails.cpp
RE: Request for a couple more aspect ratio flags - ramicio - 2012-11-27
I think there are a bunch that would be useful:
1.37:1 - Old academy ratio
1.66:1 - Plenty of films used this in the past
1.85:1 - Tons of films still use this today
2.20:1 - Rare, but still used
2.39:1 - Comment below
2.40:1 - This, the above, and 2.35:1 are just about every movie these days
2.75:1 - Some big films shot in the '60s on 65mm were this ratio (Ultra Panavision 70)
I use MySQL for my library, and I fail to see why the ratios need to be calculated to floating point numbers. Wouldn't it be easier if they were just strings, like '16:9,' '4:3,' or '1.85:1'? Most of my movies aren't calculated correctly, like 1920x1080 will sometimes show up as 2.4, and 1920x1040 will show up as 1, and then be labeled as 4:3 in the actual program.
Thanks.