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05-19-2013, 03:42 PM
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#1 |
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Confirmed User
Industry Role:
Join Date: Jan 2013
Posts: 246
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ffmpeg problem with creating thumbnail
I have a tube site and im using this function to generate thumbs from video file
Code:
ffmpeg -ss 255 -i test.mp4 -vcodec mjpeg -vframes 1 -an -f rawvideo -s 240x180 test.jpg Here is thumbs result, this image is just what i need, no border and etc.. i.imgur.com/ePpVA8E.png but sometimes depending on video size i have thumbs like this i.imgur.com/VTTESDf.png Whats the best way to remove this black space from thumbs, but need to keep thumb size 240x180 |
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05-19-2013, 09:18 PM
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#2 |
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Confirmed User
Industry Role:
Join Date: Nov 2012
Location: New Orleans
Posts: 213
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You will need to crop the frame/image to a multiple of your thumbnail before you resize it. The problem is that your thumbnail is a different aspect ratio than the source image. Try cropping it to 1200x900 or whatever the closest ratio to your source is.
Code:
-vf crop=width:height:x:y
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Tent Pitcher - Adult Search Engine |
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05-20-2013, 05:24 AM
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#3 |
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Confirmed User
Industry Role:
Join Date: Jan 2013
Posts: 246
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Yes im try something like this, but problems is because i dont know what video resolution user will upload 4:3 or 16:9, so any trick to detect black area and remove it automaticly, than with imagic i can resize and enhance image?
P.S good example i think you can see on hardsextube, black areas is removed |
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05-20-2013, 06:09 AM
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#4 |
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Confirmed User
Industry Role:
Join Date: Nov 2012
Posts: 223
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you need to asking your server support... to fixed that issue on ffmpeg
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05-20-2013, 06:29 AM
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#5 |
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Confirmed User
Industry Role:
Join Date: Jan 2013
Posts: 246
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I'm not sure is server fault
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05-27-2013, 03:27 PM
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#6 |
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small trip to underworld
Industry Role:
Join Date: Mar 2012
Location: first gen intel 80386/nintendo-gb/arcade/ps1/internet person
Posts: 4,927
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u have ffmpeg installed on your cp?
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 automatic exchange - paxum , bitcoin,pm, payza . daizzzy signbucks caution will black-hat black-hat your traffic ignored forever :zuzana designs
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05-27-2013, 03:29 PM
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#7 |
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Confirmed User
Industry Role:
Join Date: Jan 2013
Posts: 246
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Sure that i have it, latest version...!
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05-27-2013, 05:00 PM
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#8 |
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small trip to underworld
Industry Role:
Join Date: Mar 2012
Location: first gen intel 80386/nintendo-gb/arcade/ps1/internet person
Posts: 4,927
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nice
__________________
automatic exchange - paxum , bitcoin,pm, payza . daizzzy signbucks caution will black-hat black-hat your traffic ignored forever :zuzana designs
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