Am 08/02/2010 01:25 AM, schrieb Scarletdown: > I'm building a Linux system specifically for video capture in prep for > yet another video games review site I want to attempt. She is running > Debian Sid with Enlightenment as her desktop. > > I am having a helluva time trying to get things working properly. > First of all, I just installed my old PCTV (bt878 based) TV tuner that > used to work fine for me years ago. On this, I am getting video fine, > but not getting any sound through the card I tried connecting the > speakers directly to the card's line out and also tried running a > patch cable from line out to the sound card's line in and then > connecting the speakers to the sound card. Both configurations > resulted in no sound at all. > > Additionally, XAWTV for some reason is not saving my settings when I > exit. Why would that be? Also, captured video when played back > through vlc as well as when played online, is tearing pretty bad > (looks okay when played on the old TV though). It is also running a > little too fast. I recorded at 24fps, thinking that was the NTSC > standard for video. Was that an incorrect guess? Here is a clip, > captured from a Wii game showing the tearing and slightly too fast > playback (don't laugh, this is being done for the amusement of my > young neices and nephews next time I go visit them. :p >
Having done exactly what you are describing with A/V output from VJing machines using a BT878 myself, I'd suppose you: - just forget XAWTV for capturing - get mencoder, ffmpeg and probably some H264 stuff like GPAC for web streaming (debian-multimedia has all you need, unless you build your own mplayer) - get mencoder-doc and read the man page - especially the last few lines with examples about recording from TV input (I don't know your TV norm or your input signal, so I can't give you advice for specific options) - use your audio card's line in for audio capturing. There's quite good advice, how to do that in mplayers man page - capture in raw or lossless mjpeg format and PCM audio to be able to encode as H264 or ogg/ogm later for web streaming (HTML5/Flowplayer) without recompression artefacts Unfortunately I don't have one of my well-probed scripts at hand right now, but basically I did some experimenting with input size and cropping of the captured video to find a format that suited best (beware of interleaved input signals), captured to MJPEG/PCM and recoded to H264 for web streaming with flowplayer. There might be some hassle finding the right settings for your audio hardware to record from line-in. I found alsamixer to be the best tool here, just my 2 cents, Tom -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4c59b5d8.4090...@googlemail.com
