streaming - Send 2 different camera feeds to ffserver from ffmpeg -


i'm working in project have stream 2 webcams streams computer through tcp connection, can stream 1 without problem:

using

ffserver.conf: 

            httpport 8090             httpbindaddress 0.0.0.0             maxclients 40             maxbandwidth 30000              customlog -             nodaemon              <stream status.html>             format status             acl allow localhost             acl allow 192.168.0.0 192.168.255.255             </stream>             #feed camera 1            <feed webcam1.ffm>            file /tmp/webcam1.ffm            filemaxsize 100m            </feed>             #feed camera 2            <feed webcam2.ffm>            file /tmp/webcam2.ffm            filemaxsize 100m            </feed>            #stream feed 1           <stream webcam1.mjpeg>           feed webcam1.ffm           format mjpeg           videosize 1280x720           videoframerate 30           preroll 0           noaudio           strict -1           </stream>            #stream feed2           <stream webcam2.mjpeg>           feed webcam2.ffm           format mjpeg           videosize 1280x720           videoframerate 30           preroll 0           noaudio           strict -1           </stream>

command run ffserver:

          ffserver /etc/ffserver.conf

command feed ffserver:

         ffmpeg -v 2 -r 20 -f video4linux2 -i /dev/video0 http://localhost:8090/webcam1.ffm

and works perfect, when try run other feed: 

         ffmpeg -v 2 -r 20 -f video4linux2 -i /dev/video1 http://localhost:8090/webcam2.ffm

i can see second stream , first 1 not work anymore. idea?

using multiple usb webcams simultaneously may saturate bus. seems case since starting second camera cuts first 1 off.

the situation has improved when usb1.1 common. low-end motherboards have multiple usb2/3 controllers, entirely independent , can run multiple cameras without concern. usb2 can support multiple cameras @ low resolution , framerate. high framerate high resolution cameras sending uncompressed images may still saturate bus

source

possible solutions:

  1. switch mjpeg input (lower bandwidth use)

check capabilities of device:

ffmpeg -f v4l2 -list_formats -i /dev/video0

if supports mjpeg use instead of raw video:

ffplay -f v4l2 -input_format mjpeg -i /dev/video0 ...

  1. use different usb controller second camera

if motherboard doesn't feature multiple controllers pci usb card.


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