_chain() function for GstBin subclass

[Thành Trung Nguyễn]

Hi,

I'm inheriting GstBin class to make an element that change fps for video stream. My plugin was generated by using gst-template and it has the default _chain() function which push data from sink pad to src pad.
So I decide to remove this function. Then, the pipeline using gst-launch still run but nothing come out to videosink.
I've checked other element that inherited from GstBin and seem all of them do not have _chain() function.

So, what do I need to do when inherit GstBin, mean: which methods are needed to have. What's replaced for _chain() function ?

Thanks

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trungnt

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[Tim-Philipp Müller-2]

On Sat, 2009-08-29 at 12:35 +0700, Thành Trung Nguyễn wrote:

> So, what do I need to do when inherit GstBin, mean: which methods are
> needed to have. What's replaced for _chain() function ?

There is no replacement. Data is routed via ghostpads to/from elements
inside your bin.

 Cheers
  -Tim



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[Thành Trung Nguyễn]

So I wonder why there's nothing come to videosink. I've already linked ghost pads to needed elements.

On Sat, Aug 29, 2009 at 4:53 PM, Tim-Philipp Müller <[hidden email]> wrote:

On Sat, 2009-08-29 at 12:35 +0700, Thành Trung Nguyễn wrote:

> So, what do I need to do when inherit GstBin, mean: which methods are
> needed to have. What's replaced for _chain() function ?

There is no replacement. Data is routed via ghostpads to/from elements
inside your bin.

 Cheers
 -Tim



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trungnt

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[Thành Trung Nguyễn]

Look like I did something wrong. I restarted with some fresh code and it work now !

Thanks

2009/8/31 Thành Trung Nguyễn <[hidden email]>

So I wonder why there's nothing come to videosink. I've already linked ghost pads to needed elements.

On Sat, Aug 29, 2009 at 4:53 PM, Tim-Philipp Müller <[hidden email]> wrote:

On Sat, 2009-08-29 at 12:35 +0700, Thành Trung Nguyễn wrote:

> So, what do I need to do when inherit GstBin, mean: which methods are
> needed to have. What's replaced for _chain() function ?

There is no replacement. Data is routed via ghostpads to/from elements
inside your bin.

 Cheers
 -Tim



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trungnt

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trungnt

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