appsrc in push vs pull mode

[Black_13]

what does this mean " appsrc in push vs pull mode" as spoken of in the thread in the article 

http://gstreamer-devel.966125.n4.nabble.com/appsrc-usage-push-and-pull-mode-td4662768.html

James

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[Thornton, Keith]

Hi it means that there are two methods of getting the data into your pipeline via appsrc. One is that you use the need-data signals. This is pull mode. The other is your application calls push_buffer. This is push mode.

 

Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von blackthirt33n .
Gesendet: Montag, 26. März 2018 17:55
An: Discussion of the development of and with GStreamer <[hidden email]>
Betreff: appsrc in push vs pull mode

 

what does this mean " appsrc in push vs pull mode" as spoken of in the thread in the article 

http://gstreamer-devel.966125.n4.nabble.com/appsrc-usage-push-and-pull-mode-td4662768.html

James

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[Black_13]

I keep running across this example https://gist.github.com/nzjrs/725122/16ceee88aafae389bab207818e0661328921e1ab

however this is for gstreamer 0.10 are there elements of the example that are still usefull?

lines 152/153 do the following set up the start and stop call backs

g_signal_connect (app->appsrc, "need-data", G_CALLBACK (start_feed), app);

g_signal_connect (app->appsrc, "enough-data", G_CALLBACK (stop_feed), app);

the start feed sets up the idle processing ... 

app->sourceid = g_idle_add ((GSourceFunc) read_data, app);

which then calls read_data?

Would this be similar in gstreamer 1.0 ?

James

On Tue, Mar 27, 2018 at 12:38 AM, Thornton, Keith <[hidden email]> wrote:

Hi it means that there are two methods of getting the data into your pipeline via appsrc. One is that you use the need-data signals. This is pull mode. The other is your application calls push_buffer. This is push mode.

 

Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von blackthirt33n .
Gesendet: Montag, 26. März 2018 17:55
An: Discussion of the development of and with GStreamer <[hidden email]>
Betreff: appsrc in push vs pull mode

 

what does this mean " appsrc in push vs pull mode" as spoken of in the thread in the article 

http://gstreamer-devel.966125.n4.nabble.com/appsrc-usage-push-and-pull-mode-td4662768.html

James

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[Thornton, Keith]

Take a look at

https://gstreamer.freedesktop.org/documentation/tutorials/basic/short-cutting-the-pipeline.html

 

Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von blackthirt33n .
Gesendet: Dienstag, 27. März 2018 18:08
An: Discussion of the development of and with GStreamer <[hidden email]>
Betreff: Re: appsrc in push vs pull mode

 

I keep running across this example https://gist.github.com/nzjrs/725122/16ceee88aafae389bab207818e0661328921e1ab

however this is for gstreamer 0.10 are there elements of the example that are still usefull?

 

lines 152/153 do the following set up the start and stop call backs

g_signal_connect (app->appsrc, "need-data", G_CALLBACK (start_feed), app);

g_signal_connect (app->appsrc, "enough-data", G_CALLBACK (stop_feed), app);

 

 

the start feed sets up the idle processing ... 

app->sourceid = g_idle_add ((GSourceFunc) read_data, app);

which then calls read_data?

Would this be similar in gstreamer 1.0 ?

 

James

 

On Tue, Mar 27, 2018 at 12:38 AM, Thornton, Keith <[hidden email]> wrote:

Hi it means that there are two methods of getting the data into your pipeline via appsrc. One is that you use the need-data signals. This is pull mode. The other is your application calls push_buffer. This is push mode.

 

Von: gstreamer-devel [mailto:[hidden email]] Im Auftrag von blackthirt33n .
Gesendet: Montag, 26. März 2018 17:55
An: Discussion of the development of and with GStreamer <[hidden email]>
Betreff: appsrc in push vs pull mode

 

what does this mean " appsrc in push vs pull mode" as spoken of in the thread in the article 

http://gstreamer-devel.966125.n4.nabble.com/appsrc-usage-push-and-pull-mode-td4662768.html

James

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[hidden email]
https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

 

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