dmabuf in pipeline

Nicolas Dufresne nicolas at
Thu Apr 8 23:53:08 UTC 2021

Le jeu. 8 avr. 2021 17 h 30, prg.amc <pradeepreddy.g95 at> a écrit :

> Hi Thanks for the reply, actually the fd is exported from gbm buffers.
> using
> this fd the downstream element will open the device and it will do memap.
> I`m trying to understand can we wrap just DMA fd into gstbuffer ?

No, since GST buffers are GstMemory container. As I said, the error you
reported indicates an invalid FD, I would worry about that fiest and then
try and figure out why the memory is being mapped to CPU. GEM prime FD are
not always mappable or a supported the video format.

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