I have couple of problems. Let's start with the biggest/strangest. I get garbage in captured frames while writing to SCSI disk. This happens even when using overlay (ie. bttv writes directly to video card memory, as far as I understand). And it happens only when writing to the disk, reading is not a problem. And it happens only with SCSI disk, read/write with IDE disk is OK. It looks like when SCSI disk is writing data, bttv loses all data and does not write it to system memory (and I will see old data from previous frames in buffers at those scanlines). Here's example picture, captured with Gimp using overlay capturing: http://www.ee.oulu.fi/~tuukkat/tmp/brokenframe.png It's a big problem because I want to record to the same SCSI disk :( I've dual PentiumIII 933 MHz, Adaptec AIC7899 (integrated to motherboard), Matrox G400 AGP video, CS46xx audio. BTTV should not share interrupts with anything else, Adaptec does. However, I tried playing with BIOS settings without help. Specifically, I tried lowering SCSI transfer rate down to 4 MB/s (usually it does over 50 MB/s) without help. I also tried running single CPU kernel without audio or any other unnecessary drivers. No change. I'm using reiserfs. The TV card is MagicTView CPH06X (card=24 tuner=0 bttv878). I tried mencoder, streamer, and xawtv, same problem with all. Capture method doesn't seem to matter (overlay/Xvideo/disk). I also looked from list archives and Google, didn't find anything similar to my problem (some people had hangs when Adaptec shares IRQs... I don't). --- Another inconvenient problem is that if I record uncompressed yv12 video at full resolution and rate to the SCSI disk with streamer, it says often "fifo audio is full" and the audio will go out of sync with the video. With compressed mjpeg video no problem. Why this happens? I would guess the video requires too much bandwidth, but the disk can go at 50 MB/s (according to hdparm) but the video needs only about 16 MB/s. I tried both ALSA and OSS. Is there any better capture program which can record to uncompressed (yv12) mov (quicktime)? I'd like to use Mplayer but it can record only AVIs which aren't understood by Broadcast2000 (would Cinelerra read it?). Is there any I420 AVI -> yv12 QuickTime conversion program?
