f@xub:~$ ls -lah /dev/nvidia*crw-rw-rw- 1 root root 195, 255 2009-02-14 18:07 /dev/nvidiactlcrw-rw-rw- 1 root root 195, 0 2009-02-14 18:07 /dev/nvidia0f@xub:~$ groups ff adm dialout cdrom floppy audio dip video plugdev fuse lpadmin adminf@xub:~$
f@xub:~$ transcode -x v4l2,v4l2 -i /dev/nvidia0 -y ffmpeg -F msmpeg4v2 -c 00:03:00 -I 1 -u 100 -Q 3 -Z 360x240,fast -o clip.avitranscode v1.0.2 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg[fileinfo.c:118] file read error: Invalid argument[transcode] auto-probing source /dev/nvidia0 (failed)[transcode] V: import format | unknown (V=v4l2|A=v4l2)[transcode] V: import frame | 720x576 1.25:1 [transcode] V: de-interlace | (mode=1) interpolate scanlines (fast)[transcode] V: fast resize | Using -B 42,45,8 -X 0,0,8[transcode] V: new aspect ratio | 360x240 1.50:1 (-B)[transcode] V: bits/pixel | 0.833[transcode] V: decoding fps,frc | 25.000,0[transcode] V: Y'CbCr | YV12/I420[transcode] A: import format | 0x2000 AC3 [48000,16,2][transcode] A: export format | 0x55 MPEG layer-3 [48000,16,2] 128 kbps[transcode] V: encoding fps,frc | 25.000,3[transcode] A: bytes per frame | 7680 (7680.000000)[transcode] A: adjustment | 0@1000[transcode] V: IA32/AMD64 accel | mmx (mmx asm C)tc_memcpy: using mmx for memcpy[transcode] V: video buffer | 100 @ 720x576[import_v4l2.so] v1.3.5 (2005-03-11) (video) v4l2 | (audio) pcm[export_ffmpeg.so] v0.3.13 (2004-08-03) (video) Lavc1d.51.38.0 | (audio) MPEG/AC3/PCM[import_v4l2.so]: v4l2 audio grabbing[import_v4l2.so]: SNDCTL_DSP_SETFMT: Invalid argumentaudio import module error: OPEN failed[transcode] critical: failed to open input sourcef@xub:~$
Nejsem si jisty, ze tady resime spravny dotaz: chcete grabovat analogove video, a system nevidi video vstup. OK, ale video vstup ceho? Vase graficka karta ma jen video VYSTUP, to neni grabovaci karta.
Zkus změnit vlastníka u té nvidii, např. sudo chown root:video /dev/nvidia*. Ve skupině video jsi.