While tinkering with a Viewcast Osprey-230 on one of my Linux boxes at work I found the following commands and information useful. Maybe someone else will too. The command deal mainly with getting information about my card and video and audio settings. Read more…
The goal that I am trying to achieve is to capture video from an external source and encode it into a format that will be easily authored to a DVD. I will cover the DVD authoring process in another article.
Since I am using Linux one obvious solution is to use ffmpeg which is what I am going to use.
My video source is a dvd player (via composite video out and RCA audio) and I’m capturing video with a Viewcast Osprey 230 (capturing via the composite video ) and audio via the motherboard onboard AC-97 line-in.
The Osprey 230 uses the Bt878 chipset and does have both audio and video capture capabilities but I have not yet had any success in actually capturing audio from the device so I’m using the motherboard onboard audio.
Here is the ffmpeg capture line that I am currently testing:
ffmpeg -y -t 01:08:52 -f oss -ac 1 -i /dev/dsp -f video4linux2 -r 30000/1001 -s 720×480 -i /dev/video -target ntsc-dvd -vcodec mpeg2video -ab 256k -acodec ac3 -r 30000/1001 -aspect 1.3333 -async 1 -b 3200k dv d19.mpg Read more…
