Video synchronization

[Luis de Bethencourt]

On 15 May 2012 12:07, Angel Martin <amartin at vicomtech.org> wrote:
> Hi,
>
> Are you looking for something like this?
> http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-queryevents.html
>
> Best,
>
> Angel
>

Also worth reading:
http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/part-synchronisation.txt

Luis

> 2012/5/14 enricom <enri_marne87 at msn.com>
>>
>> Hello, I would like to know if there's a way to extract the buffer
>> timestamp
>> of the video stream that a video player is playing at a certain moment. So
>> far I've been using the timestamps extracted by an identity element placed
>> just before the video player but the handoff signals are not generated
>> synchronously, so between 2 buffers of length = 0.04 s there's a system
>> time
>> delta extracted at the handoff signal generation slightly different than
>> 0.04 s...for this reason I suppose that either the video player receives
>> these buffers asynchronously, so it has a buffer itself and synchronizes
>> with the general clock, or the identity signal is emitted asynchronously
>> (or
>> maybe both)...
>> For audio/video synchronization purposes I need to know something like: in
>> a
>> certain precise instant the video player is displaying a frame with
>> timestamp=x..is it possible?
>> Thank you very much.
>>
>> Enrico
>>