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by scottnla
Wed Jun 19, 2013 10:02 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 168
Views: 173081

Re: Custom HDMI modes

I didn't know about mediainfo before -- that's a really handy command! I did an experiment with three videos, each with a resolution of 960 x 960 pixels with display aspect ratios of 1:1, 4:3, and 16:9 (verified with mediainfo). I then set the raspberry pi's aspect ratio to 4:3 (verified with tvserv...
by scottnla
Mon Jun 17, 2013 10:00 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 168
Views: 173081

Re: Custom HDMI modes

I tried changing the video's pixel size using ffmpeg: ffmpeg -i input.mov -sameq -vf crop=960:960 -vf setdar=16:9 -strict experimental -r 30 output.mp4 and then having the aspect ratio match that of the video by setting the last parameter of hdmi_cvt to 3. This causes the video to take up the entire...
by scottnla
Fri Jun 14, 2013 10:07 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 168
Views: 173081

Re: Custom HDMI modes

It does seem to be the aspect ratio. The former suggestion made it better (so the video was taking up 75% of the width of the screen) and the latter kept it about the same. I'm tempted to make a video that's wider than 960 x 960, but I think that the video would still end up distorted in the playbac...
by scottnla
Tue Jun 11, 2013 9:02 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 168
Views: 173081

Re: Custom HDMI modes

I have a square (yes, square! aspect ratio of one!) screen that has a screen resolution of 960 x 960, and i'm trying to use my raspberry pi to play videos on it in response to various sensor stimuli. I managed to get the resolution of the desktop on boot to be correct by adding a custom HDMI mode: <...
by scottnla
Tue Jun 11, 2013 3:56 pm
Forum: Troubleshooting
Topic: STICKY: Setting up HDMI output when video output is wrong.
Replies: 510
Views: 768296

Re: Setting up HDMI output

Awesome! This seems to have corrected my screen resolution problem. I added the line: hdmi_cvt=960 960 60 to my config.txt and my raspberry pi boots up in the right resolution. I cropped a video to 960 x 960 to play with omxplayer (which seems the right resolution when I play it on another computer)...
by scottnla
Thu May 30, 2013 3:03 pm
Forum: Troubleshooting
Topic: STICKY: Setting up HDMI output when video output is wrong.
Replies: 510
Views: 768296

Re: Setting up HDMI output

I'm trying to get my raspberry pi to send video to a square monitor (http://www.samsung.com/us/business/commercial-display-solutions/LH22UDBPLBB/ZA); my eventual goal is to use a network of raspberry pis to drive a video wall. The monitor has the rather unusual resolution of 960 x 960. This doesn't ...

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