lavrec(1) MJPEG tools manual lavrec(1) (NAME) lavrec - MJPEG zoran/video4linux (SYNOPSIS) lavrec [options] filename(s) (DESCRIPTION) lavrec MJPEG ( QuickTime AVI) zoran Miro/Pinnacle DC10(+) Iomega Buz LML33 Linux Media Labs video4linux Bt848 Bt878 . (OPTIONS) lavrec : filename (*.avi *.qt). % ( file%02d.avi file00.avi file01.avi ). . . AVI ext2fs 2.2.x . --software-encoding lavrec MJPEG . lavrec JPEG ( libjpeg) MJPEG video4linux ( Bt848/Bt878) . --software-encoding-yuvp USB EM28XX V4L2 . BTTV V4L EM28XX V4L1 . : V4L2 YUV (Packed) YUV (Planar) BTTV . EM28XX (48KHz) . / . . Pinnacle Dazzle DVC100 . EM28XX . V4L2 YUV . . -f/--format [a|A|q|m] . a - MJPEG AVI A - MJPEG AVI q - Quicktime lavrec (*.avi *.qt) . -i/--input [p|P|n|N|s|S|t|T|f|a] -i/--input input[:norm] . p - PAL Bt8x8 P - PAL SVHS Bt8x8 t - PAL Bt8x8 n - NTSC Bt8x8 N - NTSC SVHS Bt8x8 T - NTSC Bt8x8 s - SECAM Bt8x8 S - SECAM SVHS Bt8x8 f - SECAM Bt8x8 a - ( ) () n- . ( AverMedia 6 Eyes) . : pal ntsc secam. Zoran . "-i 2:pal" Buz "-i P" S-Video PAL . -d/--decimation num (decimation) . . (-d 12). : . -g/--geometry WxH(+X+Y) : X . Buz/LML33 720x576/480+0+0 DC10(+) 640x480+0+0 768x576+0+0 . : . . video4linux . -q/--quality num JPEG ( ). . . 50% . -C/--channel LIST:CHAN ( xawtv). lavrec . -t/--time num . . Ctrl-C . -S/--single-frame . . -T/--time-lapse num () n- () . -w/--wait lavrec Enter . -B/--batch . / . -a/--audio-bitsize num : 0 8 16 (). 0 . -r/--audio-bitrate num . . : 11025 22050 44100 (). -s/--stereo . lavrec () . -l/--audio-volume num . 0 ( ) 100 ( ) . -1 () . -m/--mute . () . . -R/--audio-source [l|m|c] ((l)ine-in) ((m)icrophone) ((c)d-rom). (l) . -U/--use-read read() mmap() . . -c/--synchronization [0|1|2] . (0) (1) (2) lavrec . 2 . -n/--mjpeg-buffers num MJPEG. 32 . . -b/--mjpeg-buffer-size num MJPEG . 256 . --max-file-size num JPEG. lavrec . --max-file-frames num JPEG. . --file-flush num (flush) num . -v/--verbose num (0 1 2). 0 . (ENVIRONMENT) lavrec : LAV_VIDEO_DEV . /dev/video LAV_AUDIO_DEV . /dev/dsp LAV_MIXER_DEV . /dev/mixer (OUTPUT) lavrec . : 0.06.14:22 int: 00040 lst:0 ins:0 del:0 ae:0 td1=0.014 td2=0.029 ( - - - ). int ( ) ( PAL/SECAM 40 NTSC 33 ). lst . ins del . ae . td1 td2 ( ) . (TYPICAL RECORDING SESSIONS) . VCD ( 352x288) PAL . (80%) . AVI . : MJPEG ( S-video) lavrec --format=a --input=P --quality=80 --decimation=2 /path/to/file.avi video4linux lavrec --software-encoding --format=a --input=p --quality=80 --geometry=352x288 /path/to/file.avi (BUGS) lavrec JPEG JPEG ( ). JPEG . SMP JPEG . lavrec OSS . ALSA OSS 4.x.x . ALSA . (AUTHOR) Ronald Bultje . MJPEG-tools : mjpeg-users@lists.sourceforge.net : http://mjpeg.sourceforge.net (SEE ALSO) mjpegtools(1), lavplay(1) MJPEG Tools Team 27 August 2003 lavrec(1)