CODEWITHSUNDEEP
streamingvideo-streamingraspberry-pigstreamerraspbian
Smithy
Smithy

Reputation: 19

gst-launch-1.0 two pipelines/sinkfiles

I am working on a flying drone that sends live stream from a Raspberry Pi 2 to my computer trough a 3G modem/WI-FI, and the stream is made with this command :

sudo raspivid -t 999999999 -w 320 -h 240 -fps 20 -rot 270 -b 100000 -o - | gst-launch-1.0 -e -vvv fdsrc ! h264parse ! rtph264pay pt=96 config-interval=5 ! udpsink host=192.168.0.103 port=5000

The stream works very well, but i have a problem, while raspivid is running i want to take pictures from 5 to five seconds, and when i am executing this command while running raspivid i'm getting this :

root@raspberrypi:/var/www/camera# /usr/bin/raspistill -o cam2.jpg
mmal: mmal_vc_component_enable: failed to enable component: ENOSPC
mmal: camera component couldn't be enabled
mmal: main: Failed to create camera component
mmal: Failed to run camera app. Please check for firmware updates

Now what solutions do i have? Another idea is that i use gstream with both udpsink and filesink to a .avi, but i get error again :

WARNING: erroneous pipeline: could not link multifilesink0 to filesink0

What can i do in this case?

Thanks.

Upvotes: 0

Views: 1265

Answers (1)

mpr
mpr

Reputation: 3378

AFAIK only one Raspberry Pi program can grab the camera at a time. Since you're always streaming live video that precludes you from adding the five second snapshots on the Pi side (unless you write something custom from scratch).

What I'd suggest doing instead is handling the five second snapshots on the receiving side using the same encoded video data you're using for the live stream. This will ease battery usage on your drone and all the data you need is being sent already.

Upvotes: 1

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