streamer grabs image(s), records movies and sound
usage: streamer [ options ]
general options:
-h print this help text
-q quiet operation
-d enable debug output
-p n use n compression threads [1]
-w seconds wait before grabbing [0]
video options:
-o file video/movie file name
-f format specify video format
-c device specify video4linux device [/dev/video0]
-r fps frame rate [10.000]
-s size specify size [320x240]
-t times number of frames or hh:mm:ss [1]
-b buffers specify # of buffers [16]
-j quality quality for mjpeg or jpeg [75]
-n tvnorm set pal/ntsc/secam
-i input set video source
-a don't unmute/mute v4l device.
audio options:
-O file wav file name
-F format specify audio format
-C device specify dsp device [/dev/dsp]
-R rate sample rate [44100]
movie writers:
files - multiple image files
video formats:
ppm 24 bit TrueColor (BE: rgb) [ppm]
pgm 8 bit StaticGray [pgm]
jpeg JPEG (JFIF) [jpeg]
audio formats:
mono8 8bit mono [wav]
mono16 16bit mono (LE) [wav]
stereo 16bit stereo (LE) [wav]
raw - single file, raw video data
video formats:
rgb 24 bit TrueColor (BE: rgb) [raw]
gray 8 bit StaticGray [raw]
422 16 bit YUV 4:2:2 (packed, YUYV) [raw]
422p 16 bit YUV 4:2:2 (planar) [raw]
4mpeg yuv4mpeg (mpeg2enc >= 1.6) [yuv]
4mpeg-o yuv4mpeg (old mpeg2enc) [yuv]
audio formats:
mono8 8bit mono [wav]
mono16 16bit mono (LE) [wav]
stereo 16bit stereo (LE) [wav]
avi - Microsoft AVI (RIFF) format
video formats:
rgb15 15 bit TrueColor (LE) [avi]
rgb24 24 bit TrueColor (LE: bgr) [avi]
mjpeg MJPEG (AVI) [avi]
jpeg JPEG (JFIF) [avi]
audio formats:
mono8 8bit mono [avi]
mono16 16bit mono (LE) [avi]
stereo 16bit stereo (LE) [avi]
If you want to capture to multiple image files you should include some
digits into the movie filename (foo0000.jpeg for example), streamer will
use the digit block to enumerate the image files.
For file formats which can hold *both* audio and video (like AVI and
QuickTime) the -O option has no effect.
streamer will use the file extention of the output file name to figure
which format to use. You need the -f/-F options only if the extention
allows more than one format.
Examples:
capture a single frame:
streamer -o foobar.ppm
capture ten frames, two per second:
streamer -t 10 -r 2 -o foobar00.jpeg
record 30 seconds stereo sound:
streamer -t 0:30 -O soundtrack.wav -F stereo
record a quicktime movie with sound:
streamer -t 0:30 -o movie.mov -f jpeg -F mono16
build mpeg movies using mjpegtools + compressed avi file:
streamer -t 0:30 -s 352x240 -r 24 -o movie.avi -f mjpeg -F stereo
lav2wav +p movie.avi | mp2enc -o audio.mp2
lav2yuv +p movie.avi | mpeg2enc -o video.m1v
mplex audio.mp2 video.m1v -o movie.mpg
build mpeg movies using mjpegtools + raw, uncompressed video:
streamer -t 0:30 -s 352x240 -r 24 -o video.yuv -O audio.wav -F stereo
mp2enc -o audio.mp2 < audio.wav
mpeg2enc -o video.m1v < video.yuv
mplex audio.mp2 video.m1v -o movie.mpg
--
(c) 1998-2001 Gerd Knorr <kraxel@bytesex.org>