Write several files while continuous preview

[Hector Canto]

Hi everyone,

I'm trying to develop a pipeline where I can maintain a continuous preview while recording several files. I don't mind loosing data between chunks.
So far I've come with this ideas but I lack expertise with this elements or I was unsuccessful so far:

The ideas:

1) Use a multifilesink
2) Use two branches with valve + encoder + muxer + filesink, shifting between them, rebuilding them when disabled.
3) Block the pad and rebuild the last part of the branch

The questions for each alternative:

1.a Is there a way to control the "next-file" manually, an EOS to the sink doesn't seems to work.
1.b I had problems with the first chunk and with time-stamping, am I missing something?

3.a Would the pipeline stuck?
3.b Do I need to build the elements again or there is a way to restart them

And finally, which alternative do you recommend?
I would like to implement (1) but I didn't found documentation or examples to help me do it. (2) seems the easiest but also the less clean.

Thanks in advance
----
Héctor Canto


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[saepia]

I suggest 3).

If you use 0.10 there are several things that are not so obvious but
it is worth trying.

m.

2012/10/11 Hector Canto <[hidden email]>:

> Hi everyone,
>
> I'm trying to develop a pipeline where I can maintain a continuous preview
> while recording several files. I don't mind loosing data between chunks.
> So far I've come with this ideas but I lack expertise with this elements or
> I was unsuccessful so far:
>
> The ideas:
>
> 1) Use a multifilesink
> 2) Use two branches with valve + encoder + muxer + filesink, shifting
> between them, rebuilding them when disabled.
> 3) Block the pad and rebuild the last part of the branch
>
> The questions for each alternative:
>
> 1.a Is there a way to control the "next-file" manually, an EOS to the sink
> doesn't seems to work.
> 1.b I had problems with the first chunk and with time-stamping, am I missing
> something?
>
> 3.a Would the pipeline stuck?
> 3.b Do I need to build the elements again or there is a way to restart them
>
> And finally, which alternative do you recommend?
> I would like to implement (1) but I didn't found documentation or examples
> to help me do it. (2) seems the easiest but also the less clean.
>
> Thanks in advance
> ----
> Héctor Canto
>
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>

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[Hector Canto]

Finally I use (2) - valves- rebuilding the last part of the branch.
Since the EOS flushes date itself, I didn't found necessary to block the pads.

It useful to destroy the encoders and the filesinks in order to avoid problems with codification and encapsulation.
I would like to find a way to "restart" the encoders without removing and creating them anew every time.

2012/10/12 [hidden email] <[hidden email]>

I suggest 3).

If you use 0.10 there are several things that are not so obvious but
it is worth trying.

m.

2012/10/11 Hector Canto <[hidden email]>:

> Hi everyone,
>
> I'm trying to develop a pipeline where I can maintain a continuous preview
> while recording several files. I don't mind loosing data between chunks.
> So far I've come with this ideas but I lack expertise with this elements or
> I was unsuccessful so far:
>
> The ideas:
>
> 1) Use a multifilesink
> 2) Use two branches with valve + encoder + muxer + filesink, shifting
> between them, rebuilding them when disabled.
> 3) Block the pad and rebuild the last part of the branch
>
> The questions for each alternative:
>
> 1.a Is there a way to control the "next-file" manually, an EOS to the sink
> doesn't seems to work.
> 1.b I had problems with the first chunk and with time-stamping, am I missing
> something?
>
> 3.a Would the pipeline stuck?
> 3.b Do I need to build the elements again or there is a way to restart them
>
> And finally, which alternative do you recommend?
> I would like to implement (1) but I didn't found documentation or examples
> to help me do it. (2) seems the easiest but also the less clean.
>
> Thanks in advance
> ----
> Héctor Canto
>
>

> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

--
----
Héctor Canto


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