get different message from two same element

[simosimo]

I wrote a pygst code for transcoding, I use an element in the pipeline in two place. I need differentiates between messages of this element.
for example :

gst-launch v4l2src ! element ! videoscale ! videorate ! encoding ! decoding ! element ! filesrc ....

in this pipeline i use twise  element  , for the same element i get the same message, i want to get two different field in the message to differentiates the element place

I use:
message-name = message.structure.get_name()
if message-name == "name":
  code here

but the same element use the same "name", so how can make the differnce between messages?


thanks

[Nathanael D. Noblet]

On 05/12/2012 07:54 AM, simosimo wrote:

> I wrote a pygst code for transcoding, I use an element in the pipeline in two
> place. I need differentiates between messages of this element.
> for example :
>
> gst-launch v4l2src ! *element* ! videoscale ! videorate ! encoding !
> decoding ! *element *! filesrc ....
>
> in this pipeline i use twise  *element * , for the same element i get the
> same message, i want to get two different field in the message to
> differentiates the element place
>
> I use:
> message-name = message.structure.get_name()
> if message-name == "name":
>    code here
>
> but the same element use the same "name", so how can make the differnce
> between messages?

Not sure what the python equivalent is, however you can get the name of
the element that sent the message in c like so:

GST_OBJECT_NAME(msg->src)

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[simosimo]

yeep, fixed, thank you for your help :)

by the way, how can i add a field to message, like a sequence number, I try to capture the message from the first element, add a sequence number, then retrieve the message on the second element with add number of seauence.

again, thank you.

[Stefan Sauer]

On 05/12/2012 06:55 PM, simosimo wrote:
> yeep, fixed, thank you for your help :)
>
> by the way, how can i add a field to message, like a sequence number, I try
> to capture the message from the first element, add a sequence number, then
> retrieve the message on the second element with add number of seauence.
As an application you can't. Most analysers include a timestamp field
that might be helpful too.

Stefan

>
> again, thank you.
>
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