vlc http streaming from a TV card

I got a TV card, it appears like this in lspci:

01:08.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast Decoder (rev d1)

In order to stream 3 simultaneous streams, very low, low and high quality, you can do this:

#!/bin/ksh
#
/sbin/modprobe saa7134-alsa
sleep 2

DEV=/dev/tvcard
ps -ef | grep -i vlc | grep -v grep |grep -i $DEV | awk '{ print $2 }'| while read P;do
kill -9 $P
done
VBR=96
ABR=24
W=320
H=240

### --deinterlace-mode {discard,blend,mean,bob,linear} : deinterlacing mode (default: discard)
#  width=320,height=240  qpmax=40 x264{crf=5,profile=extended,level=1.0}
# :standard{access=http{user=video,pwd=cable},mux=asf,dst=0.0.0.0:8088}
# venc=x264{level=2,nr=1000,me=tesa,b-pyramid,bitrate=64,ref=4,b-adapt=2,bframes=2,partitions=all,keyint=2500}

VLC="/usr/local/bin/cvlc --logo-file /disk2/logox.png v4l2://$DEV :input=2 :standard=8 :input-slave=alsa://hw:1
,0 --alsa-samplerate=32000 --deinterlace-mode linear --sout "

VERYLOW="transcode{vcodec=h264,acodec=mp4a,channels=1,width=160,height=120,vb=24,ab=16,venc=x264{bframes=0,leve
l=5,nr=1000,b-pyramid,b-adapt=2,hurry-up},audio-sync,sfilter=logo}:standard{access=http,dst=0.0.0.0:8011/stream
.flv}"

LOW="transcode{vcodec=h264,acodec=mp4a,channels=1,width=${W},height=${H},vb=${VBR},ab=${ABR},venc=x264{bframes=
0,level=5,nr=1000,b-pyramid,b-adapt=2},audio-sync,sfilter=logo}:standard{access=http,dst=0.0.0.0:8012/stream.fl
v}"

HIGH="transcode{vcodec=h264,acodec=mp4a,channels=2,ab=128,venc=x264{bframes=0,level=5,nr=1000,b-pyramid,b-adapt
=2,hurry-up},deinterlace,audio-sync,sfilter=logo}:standard{access=http,dst=0.0.0.0:8013/stream.flv}"

/usr/local/bin/v4l2-ctl -d $DEV --set-tuner=stereo
/usr/local/bin/v4l2-ctl -d $DEV --set-standard=0
/usr/local/bin/ivtv-tune -d $DEV -t us-cable -c3

#--- audio codecs can be mpga or mp3 or m4a
#--- mux can be ogg,ts,mp4,asf,ps,mpeg1,asfh,mpjpeg

#--- low quality
#$VLC "#$VERYLOW"

#--- low quality
#$VLC "#$LOW"

#--- LAN quality
#$VLC "#$HIGH"

#---- single command, high quality AND low quality using h264_vdpau and x264 as encoder
$VLC "#duplicate{dst=\"$VERYLOW\",dst=\"$LOW\",dst=\"$HIGH\"}"
#$VLC "#duplicate{dst=\"$VERYLOW\",dst=\"$HIGH\"}"
#$VLC "#duplicate{dst=\"$LOW\",dst=\"$HIGH\"}"
#$VLC "#duplicate{dst=\"$VERYLOW\",dst=\"$LOW\"}"

"#duplicate" is used in order to have 2 streams working simultaneously from the same input device, for each output srteam we use a "dst="

Posted by rdircio