Download your favorite Linux distribution at LQ ISO.
Go Back > Forums > Linux Forums > Linux - Desktop
User Name
Linux - Desktop This forum is for the discussion of all Linux Software used in a desktop context.


  Search this Thread
Old 01-06-2007, 11:31 AM   #1
Registered: Jun 2006
Distribution: Fedora 14
Posts: 51

Rep: Reputation: 15
Recording Video and Audio using mencoder

I have a video card (AverMedia EZMaker Gold), which has only video input (either RCA or S-Video). In order to record video and audio I connect the VCR's video to the card, and its audio to the line-in on the sound card. So far so good...

Now, a strange thing - when I connect the audio to the sound card and turn the computer's speakers on, I hear the sound from the VCR. When I connect a guitar to the line-in I don't hear it... Strange - but I have no idea whether this has anything to do with my problem.

And my problem:
I can record the audio using audacity.
I can record the video using mencoder ("mencoder tv:// -tv driver=v4l2:device=/dev/video0 -ovc libdv -vf scale=720:576 -o foo.avi").
When I try to use them both on the same time, one doesn't work.
I want to use "mencoder tv:// -tv driver=v4l2:device=/dev/video0:adevice=[sound card] -ovc libdv -vf scale=720:576 -oac pcm -o foo.avi", but I have no idea what to write as an audio device.
I've tried /dev/dsp (OSS emulation) which recorded nothing, and various hw.$DEV options which gave me the following message "Unable to open 'hw.$DEV': No such file or directory".

What should I do???
Thank you very much,
Old 01-15-2007, 04:47 PM   #2
Registered: Jun 2006
Distribution: Fedora 14
Posts: 51

Original Poster
Rep: Reputation: 15
Please??? Anyone??? I'm lost! And this is really important to me - I've been searching for a similar card (in a reasonable price) for AGES, and now that I have one, it would be really nice to be able to use it... Please???

Old 01-15-2007, 06:30 PM   #3
Senior Member
Registered: Mar 2003
Location: Nova Scotia, Canada
Distribution: Debian AMD64
Posts: 3,592

Rep: Reputation: 96
Try using/modifying the line below to see if it works you will want to make sure you unmute the line-in for it to work otherwise you will get no sound.

mencoder tv:// -tv driver=v4l2:input=0:norm=ntsc:width=720:height=480:outfmt=yuy2:device=/dev/video0:forceaudio:audiorate=32000 buffersize=64 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=5000:keyint=30 -oac mp3lame -lameopts br=128:cbr:mode=3 -ffourcc divx -o record.avi
Old 01-19-2007, 05:19 PM   #4
Registered: Jun 2006
Distribution: Fedora 14
Posts: 51

Original Poster
Rep: Reputation: 15
First of all, thank you!

Second - I'm so stupid!
I unmuted the line-in recording on the ALSA devices, but didn't even bother to check whether the OSS-emulation devices enabled line-in recording. Having that changed, I could record freely.

Thanks again,
Oded R.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
mencoder and lavc audio @ngelot Linux - Software 2 01-09-2006 03:23 AM
ati tv wonder mencoder recording vhs tape pld Linux - General 2 04-19-2005 09:57 PM
mencoder/mplayer and splitting both audio and video streams from source... bai_design Linux - Software 0 02-06-2005 05:52 PM
mencoder audio resample mrsolo Linux - Software 0 11-18-2004 12:03 AM
mencoder audio off-snyc help estatik Linux - Software 1 03-12-2004 09:02 PM > Forums > Linux Forums > Linux - Desktop

All times are GMT -5. The time now is 01:03 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration