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I have downloaded a video from youtube using the ubuntu command-line (Virtual PC)

sudo apt-get install youtube-dl youtube-dl http:<url>

I am trying to play a video after installing

sudo apt-get install mplayer

I issued below the command

mplayer -vo caca VLHJUfgxEO4.mp4

It is playing a video , but the video is not clear. Some ascii characters are displaying.

How can I view the video clearly?

I am using Ubuntu 12.04

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Have you tried a different video player? Or not running it from the terminal, does it still happen? – Boncey Oct 8 '13 at 18:37

You are asking mplayer to output in color ascii characters with the -vo caca parameter.

Try playing your video with just the command:

mplayer VLHJUfgxEO4.mp4

Mplayer will then play the video normally in a video window (provided that you are running X).

However, if you want to play your video file without running X, you could try using the following command:

mplayer -vo fbdev2 -fs VLHJUfgxEO4.mp4

For full screen zooming:

mplayer -vo fbdev2 -zoom VLHJUfgxEO4.mp4
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