Import Intel dmabuf into pipeline

[Victor Jaquez]

You can use appsrc to inject those buffers into a gstreamer pipeline,
while wrapping them in a GstBuffers, as GstMemories, using a
GstDmaBufAllocator[1].

But there might be many hardware limitations which may affect your
use-case.

https://gstreamer.freedesktop.org/documentation/allocators/gstdmabuf.html?gi-language=c


vmjl

On Mon, 13 Dec 2021 at 14:33, Regina König via gstreamer-devel wrote:
>  Hi everybody,
> 
>  I want to import an Intel dmabuf..it is shared via a filedescriptor and
> 
>  I am wondering if is the only possible way to import it with
> 
>  gst_egl_image_from_dma_buf_direct(). I don't want to create an image
> 
>      what Image, EGL image?
> 
>    Yes, as I understand, it creates an EGLImage, but I don't want it to be created. The buffer is in xrgb format. Is it possible to directly encode the content of the buffer?
> 
>  (this is an uneccessary step) but directly encode it with H264. I also
> 
>      Use GPU to encode it?
> 
>    Right, Hardware encode it with Gpu. I think vaapih264enc would be the right encoder
> 
>  tried to import it with "fdsrc" but it seems to be only suitable for
> 
>  concole, not for dmabuf's. What is the most efficient way to get access
> 
>  to a dmabuf to directly encode it?
> 
>  Thanks in advance,
> 
>  Regina König