[gst-devel] Gstbuffers and types of images

Stefan Kost ensonic at hora-obscura.de
Mon Jun 21 17:07:36 CEST 2010

On 15.06.2010 15:26, Alexis Berlemont wrote:
> Hi,
> I noticed that the plugin mpegvideoparse is able to find out the
> images types (I, P, B) which flow through it in Gstbuffers.
> And, if the image type is not "I", mpegvideoparse sets the flag
> GST_BUFFER_FLAG_DELTA_UNIT (which means that the image cannot be
> decoded independently). That allows me to differentiate intra from
> inter images. Unfortunately, I am unable to differentiate inter images
> (P or B).
> If I have to write a little plugin which re-reads the picture header,
> what would be the correct Gstreamer way to send this info to the next
> Gstreamer element (tag ?, ...) ?
Another flag, but we're out of spare flags. This might be another
use-case for GstBuffer2:


> Many thanks in advance.
> Alexis.
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