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Question about my 2:35:1 video


lifespeed

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lifespeed

As far as I know there are two common aspect ratios; 1.78:1 (16:9) common to our HDTV, and the cinematic 2.35:1 in the theaters.  Blu-ray and other releases vary.  Sometimes they'll crop to 1.78:1 to fit your TV, other times they'll leave the black bars on top and bottom.  I suppose it depends on the particular movie which way is preferable.  Ideally a video player will handle either without giving up screen real estate by unnecessary cropping.

 

So here is the rub:  Many newer Android mobile phone screens are 2:1 (18:9).  Emby for android will fill the vertical space (landscape mode) with the 16:9 content, leaving black bars on the sides.  This is correct behavior.  However, with 2.35:1 content "cinema" aspect ratio Emby constrains itself to the same width, not taking advantage of the available width AND puts black bars on the top and bottom.  It is behaving as if it must fit the content into a 16:9 screen, when more width is available.  So you get black bars on both the top and bottom.

 

To add to the weirdness, the Emby app itself is using the 18:9 screen to display player controls, but it is squeezing the video to this arbitrary width calculated for 16:9 video.  It appears to be double-cropping to a hard-coded one-size-fits all 16:9 solution that is really not satisfactory.

 

Here are the screenshots:

 

 

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lifespeed

you sure your "2.35:1" content don't have hardcoded black bars and is actually a 16:9 file ?

 

Yes, I did think to check that before posting a bug report.  Here it is in the web client:

post-44858-0-50422500-1513384717_thumb.png

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lifespeed

why does the web client screenshot have a different aspect ratio ?

Because it was from a laptop at work, 1920 X 1200.  No black bars on the sides, though.

 

And here is 1920 X 1080 from Emby Theater desktop at home:

post-44858-0-15146600-1513398869_thumb.png

Edited by lifespeed
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lifespeed

As a test, can you try this?

 

https://emby.media/community/index.php?/topic/53753-emby-for-android-libmpv-testing/

 

Although I bet @@daedalus is right, I'm still curious. Thanks.

 

No he's not right, the screenshots clearly show it.  Only Android Mobile client fails to display the 2.35:1 file at full screen width.  Browser and Emby theater do it correctly.

 

I'll try the MPV-based Android client next.

 

Edit:  nope, same problem.  The video player is just assuming the screen is 16:9 and scaling accordingly.  Which is kind of funny, because the portions of the screen that are controlled by android - the scroll bar and other graphics features *know* what the screen width is and use it.  The player needs to make use of this information as well.

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Edited by lifespeed
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lifespeed

please show us the media infos of this file just to be sure

Hmmm . . .  looks like this file is 1920 X 1080.  So maybe the letterboxing is in the file itself?

 

I need to find a 1920 X 803 test file, 2:39:1 widescreen to check the Android client behavior.

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So maybe the letterboxing is in the file itself?

 

That's what he suggested in the beginning. Glad you tracked it down.

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lifespeed

Here is a screenshot from a 1920 X 816 video file viewed in the Android mobile MPV beta.  It  uses the full screen width.

 

Guess there is a lot of sloppy video formatting out there, sorry about the false alarm.  The new Android Mobile client is impressive so far.

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daedalus

Guess there is a lot of sloppy video formatting out there, sorry about the false alarm.

just a reminder retail sources like dvd, bluray or uhd bluray always use full 4:3 / 16:9 frames which are the only one allowed in the standards

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