| These are primarily notes|
It won't be complete in any sense.
It exists to contain fragments of useful information.
Tweaking for nicer results: http://aa-project.sourceforge.net/tune/
Aview itself views p[ngbp]m files. For a wrapper to view most images, try a script like:
#!/bin/bash for fn in $@; do echo $fn convert $fn /tmp/aview-wrap.tmp.ppm ||exit aview -dim -bold -normal -reverse -boldfont -error_distribution -minwidth 130 -minheight 130 /tmp/aview-wrap.tmp.ppm done;
caca / libcaca
Colour AsCii Art library
mplayer has -vo aa and -vo caca:
- has a few options (see the man page)
- aa doesn't really understand aspect ratios. If you see only a thin strip, you want to specify (but experiment per video, particularly if you want it to be exactly screen-filling for the given console/shell size. So far all my values were within 0.35..1.3, most around 0.5) , usually with a value around 0.5
- depending on console/shell/font, may look better - or worse.
- other options that may help, or break things.
- You get extra key bindings: (contrast is probably the most interesting of them)
1 : contrast - 2 : contrast + 3 : brightness - 4 : brightness + 5 : fast rendering (seems to conflict with hue?) 6 : dithering (seems to conflict with hue?) 7 : invert image (seems to conflict with saturation?) a : toggles between aa and mplayer control
- needs tweaking to look decent
- most tweaking via environment variables.
- subtitles seem to just get in the way, and won't be readable anyway.
- Try -nosub -noautosub
- increased contrast makes for more crisp, more black and white video.
- e.g. -contrast 25 though best values will vary per video
- If you want to run this in an open shell, then you don't want X so use DISPLAY= (with no value) as in the example below
- since that means you're outputting to the shell you run on, you then also want to avoid flicker from the other output, so:
- to suppress most stdout messages
- to hide stderr warnings/errors
- IF you want to run mplayer in an X terminal window with a small font size, one way is:
- If you're loading the CPU a lot (very small font size, or whatnot), you might want
- size down the video before it's handed to aa/caca
# same shell DISPLAY= mplayer -vo aa -monitorpixelaspect 0.5 -nosub -noautosub -quiet -framedrop \ -contrast 25 videofile 2>/dev/null # small-fonted X window. A simpler term is usually faster than the now-often-common-alpha-blended-and-whatnot one xterm -fn 5x7 -geometry 250x100 -e "unset DISPLAY;mplayer -quiet -vo caca -monitoraspect 1.3 videofile" # For capture from a webcam, you might want something like: # (higher resolution than ~320x200 is usually slower or wasting CPU) mplayer -quiet -tv driver=v4l2:width=320:height=200 tv://
Note that all this ignores a bunch of the output alternatives offered. I've yet to really experiment with them.