[gst-devel] videomixer2 ?

[Farkas Levente]

it'd be a nine feature to add to queue2 too.

On Fri, Sep 10, 2010 at 08:40, Ron McOuat <rmcouat at smartt.com> wrote:
> On 10-09-09 11:17 PM, Sebastian Dröge wrote:
>
> On Thu, 2010-09-09 at 15:46 -0700, Ron McOuat wrote:
>
> Last time I looked queue2 is missing the feature that allows the queue
> to maintain N seconds of buffer and then leak buffers as they pass that
> N second age.
>
> You don't really want queue to leak buffers anyway. That's just a bad
> hack for broken QoS handling IMHO
>
> My use has nothing to do with QoS, I am using queue in buffer leak mode to
> implement a pre-trigger buffer downstream of a live source. When an event
> occurs I have N sec of video from before the event stored in the queue so
> when I unblock the src pad I record the video buffers stored in the queue
> followed by the real time data from the live source until the event ends at
> which time I again block the src pad. I don't want any more than N sec worth
> of pre-trigger, just a short period of time up to 10 seconds before the
> trigger point. If nothing interesting is happening possibly for hours the
> video can fall off the end of the queue. The queue element is perfect for
> this purpose.
>
>
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-- 
  Levente                               "Si vis pacem para bellum!"