i.MX Processors中的主题 Re: reg: gst-launch stop command

reg: gst-launch stop command

vishvapathi — Fri, 20 Dec 2013 04:22:25 GMT

Hi,

When executing (in a command prompt) a gst-launch-ed pipeline that is capturing a live feed, what's the best way to stop it other than ctrl-C? I want to close it automatically,without the use of the keyboard...

Any suggestions??

shanmugamsundar

Raybiztech

DaianeAngolini

Re: reg: gst-launch stop command

vishvapathi — Fri, 03 Jan 2014 04:19:02 GMT

Hi,

I tried to find the process id and kill the process, but i think thats not the correct way...

Can anyone suggest me an alternate/correct way of stopping livestreaming using gst-launch????

LeonardoSandovalGonzalez

jackmao

Re: reg: gst-launch stop command

LeonardoSandova — Fri, 03 Jan 2014 04:46:06 GMT

The best way is to send the pipeline to NULL state in case you launching the pipeline inside a C program. From the shell, You can send a SIGINT signal with the command kill, check the man info.

Leo

Re: reg: gst-launch stop command

jack_mao — Fri, 03 Jan 2014 05:00:26 GMT

agree with Leo, the gstreamer pipeline can be put to play or stop status by code setting, otherwise it has to get the events to do related things

Re: reg: gst-launch stop command

vishvapathi — Fri, 03 Jan 2014 07:38:50 GMT

Hi,

The below grep and awk command does the work for me.

system("ps | grep gst | awk '{print $1}' | xargs kill -2 $1");

Is it fine or is there a better option??

Your opinion plz..

Re: reg: gst-launch stop command

LeonardoSandova — Sat, 04 Jan 2014 06:13:35 GMT

if it works on the shell, then it should work using the system call 'system'. Just remember that looking at gst process with ps, it with also pick the grep command, so I dont think those pipes will work all the time.

Leo

Re: reg: gst-launch stop command

Raybiztech — Sat, 04 Jan 2014 07:11:09 GMT

HI,

Through coding you can use this instruction to make the pipeline to NULL state.

gst_element_set_state (pipeline, GST_STATE_NULL);

Thanks & Regards,

RayBiztech.