LinuxQuestions.org - [SOLVED] Video recorder, how to record a television programme using the computer?

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Video recorder, how to record a television programme using the computer?

Have a television card on the computer. Works perfectly well and it would be nice to use the computer as a television program recorder. Buggering about with a DVD recorder is a lot of trouble.

How is it possible to do this - surely pretty basic - job? Buggered if I know.

It is important to compress the thing into *.avi format or something like that. Otherwise it takes up a huge amount of space.

How would mplayer do it for example?

Thanks any help.

I have some scripts I made a long time ago, tailor them to your requirements/card :)

Capture TV

Code:

#!/bin/sh

sudo nice -n -1 mencoder -tv \

driver=v4l2:device=/dev/video0:input=3:normid=0:mjpeg:decimation=1:quality=100:brightness=-8:contrast=0:saturation=0:alsa \

-ovc lavc -oac lavc -lavcopts vbitrate=1500:abitrate=128:mbd=1:v4mv \

-vf lavcdeint,crop=688:560:10:8,scale=448:336 \

-o ~/Capture\ -\ rename_me_NOW!!.avi tv://

sleep 1

sudo chown $USER ~/Capture\ -\ rename_me_NOW!!.avi

Capture TV hq

Code:

#!/bin/sh

exec        mencoder -tv \

        driver=v4l2:device=/dev/video0:input=1:normid=0:mjpeg:decimation=1:quality=100:brightness=10:contrast=-2:saturation=10:alsa \

        -ovc lavc -oac lavc -lavcopts aspect=4/3:vbitrate=2000:vhq \

        -vf crop=700:572:2:2,lavcdeint \

        -o ~/Capture\ -\ rename_me_NOW!!.avi \

        tv://

exit

Capture TV wide

Code:

#!/bin/sh

sudo nice -n -1 mencoder -tv \

driver=v4l2:device=/dev/video0:input=3:normid=0:mjpeg:decimation=1:quality=100:brightness=-8:contrast=0:saturation=0:alsa \

-ovc lavc -oac lavc -lavcopts vbitrate=1500:abitrate=128:mbd=1:v4mv \

-vf lavcdeint,crop=688:416:10:80,scale=512:288 \

-o ~/Capture-ws\ -\ rename_me_NOW!!.avi \

tv://

sleep 1

sudo chown $USER ~/Capture-ws\ -\ rename_me_NOW!!.avi

Capture TV wide+hq

Code:

#!/bin/sh

exec        mencoder -tv \

        driver=v4l2:device=/dev/video0:input=1:normid=0:mjpeg:decimation=1:quality=100:brightness=10:contrast=-2:saturation=10:alsa \

        -ovc lavc -oac lavc -lavcopts aspect=16/9:vbitrate=2000:vhq \

        -vf crop=700:432:2:72,lavcdeint \

        -o ~/Capture-ws\ -\ rename_me_NOW!!.avi \

        tv://

exit

The ones with sudo in them raise the priority of the process... good luck!

Thanks, in the spirit of keeping things as simple as possible this just about works for me:

Code:

mencoder -o mencoderTest.avi -ovc lavc -lavcopts vhq -oac pcm tv://

lavc gives compression, but the quality is very bad so put vhq, very high quality, in; seems to improve things but don't really know. The sound is pcm which means uncompressed - compress it and the audio visual synchronisation A/V sync goes down the tubes.

No ~/.mplayer/mcoder.conf file for simplicity.

The big thing is to bugger about with alsamixer for your life. <m> and <space>.

Just thought I'd put in the simplest possible thing I've come up with.

For on-the-fly compression of multimedia, may want to try transcode ... it's kinda difficult to use, but they say it may be able to handle it. I can't find the article right now, but it was faster than mencoder and ffmpeg and was capable of this.