unref an element without memory leak

[Liu Xin]

hi, 

I'm writing a pipeline with dynamic branch. While removing the branch, I ran into the case in which a queue element will be gst_bin_removed in the probe callback to the queue's peering tee element. My question is, what if there's frame data still hanging in the queue element? Will this lead to a memory leak?

Please share your expertise.

Thanks,

Xin

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[Nicolas Dufresne-5]

Le 16 oct. 2017 3:09 PM, "Liu Xin" <[hidden email]> a écrit :

hi, 

I'm writing a pipeline with dynamic branch. While removing the branch, I ran into the case in which a queue element will be gst_bin_removed in the probe callback to the queue's peering tee element. My question is, what if there's frame data still hanging in the queue element? Will this lead to a memory leak?

It's a requirement to set the element to NULL state before you unref it. The buffers will be discarded and returned to their appropriate pool and/or allocator during this state transition.

Please share your expertise.

Thanks,

Xin

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[hidden email]
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[Liu Xin]

Thanks Nicolas

---

发件人: gstreamer-devel <[hidden email]> 代表 Nicolas Dufresne <[hidden email]>
发送时间: 2017年10月17日 5:40
收件人: Discussion of the development of and with GStreamer
主题: Re: unref an element without memory leak

 

Le 16 oct. 2017 3:09 PM, "Liu Xin" <[hidden email]> a écrit :

hi, 

I'm writing a pipeline with dynamic branch. While removing the branch, I ran into the case in which a queue element will be gst_bin_removed in the probe callback to the queue's peering tee element. My question is, what if there's frame data still hanging in the queue element? Will this lead to a memory leak?

It's a requirement to set the element to NULL state before you unref it. The buffers will be discarded and returned to their appropriate pool and/or allocator during this state transition.

Please share your expertise.

Thanks,

Xin

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

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