[gst-devel] Gstbuffers and types of images

[Stefan Kost]

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:
http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/draft-buffer2.txt

Stefan

> Many thanks in advance.
>
> Alexis.
>
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