How to handle EOS from an appsrc to ensure all frames are played out before pipeline closes?

[Sébastien FENET]

Hi,
I have the same issue. Same kind of pipeline, I send the EOS signal to appsrc when I run out of data. I listen to the pipeline's bus to get the EOS back when it has gone through all elements. And it appears I get the EOS signal on the bus too early (the last bits of data are not played).

Regards,Seb.
 
      De : Subodh Chiwate <subodh.chiwate at ufomoviez.com>
 À : gstreamer-devel at lists.freedesktop.org 
 Envoyé le : Vendredi 20 mars 2015 7h57
 Objet : How to handle EOS from an appsrc to ensure all frames are played out before pipeline closes?
   
Hi All,

I am using the following pipeline in Gstreamer 1.2.3 on Freescale IMX6Q
board. But have noticed similar behavior on the x86 desktops as well.
Hence providing the basic pipeline structure.

[Local Media] - [Data Processing] - [AppSrc] --> [Parser] --> [Decoder]
--> [Sink]

I need to use large buffers in appsrc to ensure my processing benefits
from the head start, but I suspect that while EOS
the data in buffers might get flushed without being rendered.

Referring to the sample appsrc (
gst-plugins-base-1.2.3/tests/examples/app/appsrc-seekable.c )
application from source tar ball, I raise an EOS event from the appsrc
"need-data" callback when I run out of data.
The bus Handler exits gmain_loop.

How do I ensure that all the data still in the intermediate buffers is
played correctly before pipeline quits.
Is there any signal/condition I can wait on after getting the EOS before
I can set the pipeline state to NULL.
Please let me know in case I missed something already mentioned in the
Manual or PWG.
Thanks.

--
Regards,
Subodh

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