PTS Offset to Add Artificial Delay Not Working

[Michiel Konstapel]

Yes, by default the queue is limited to 200 buffers, 1 MB, or 1 second 
of data - whichever limit is hit first. You can check the default values 
in the docs: 
https://gstreamer.freedesktop.org/documentation/coreelements/queue.html?gi-language=c#properties


So for a 5 second queue, you can set max-size-buffers and max-size-bytes 
to zero (no limit) and max-size-time to 5000000000.


On 17-05-2022 09:49, Abrar Shahriar wrote:
> I tried adding Queue plugins both before and after, still no success. 
> Do I need to set some params of the Queue elements?
>
>
> ーーーーーーーーー
>
> アブラル・ザヒン・シャハリアル(Abrar Zahin Shahriar)
>
> ハイパーダイン株式会社
> 〒108－0014　東京都港区芝5丁目9－12　3階
>
> ------------------------------------------------------------------------
> *From:* Michiel Konstapel <michiel at aanmelder.nl>
> *Sent:* Monday, May 16, 2022 6:11 PM
> *To:* Discussion of the development of and with GStreamer 
> <gstreamer-devel at lists.freedesktop.org>
> *Cc:* Abrar Shahriar <abrar.shahriar at hiperdyne.com>
> *Subject:* Re: PTS Offset to Add Artificial Delay Not Working
>
> You may need to ensure that you have at least 5 seconds of queue 
> capacity, because the buffers will have to be held somewhere before 
> they can be processed at the later PTS. I don't know if this needs to 
> be before the probed pad, or before the downstream element that cares 
> about the PTS (sink, muxer, mixer, encoder, ..?)
> Kind regards,
> Michiel
>
>
> On 16-05-2022 11:05, Abrar Shahriar via gstreamer-devel wrote:
>> Hi,
>>
>> I tried to add 5 seconds (in ns) to the PTS values on the incoming 
>> buffers in a probe, but I see no delay. I tried it for both audio 
>> and video streams.
>>
>> What could be the reason for it not working? I thought PTS could be 
>> used to adjust delay?
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