[Libva] Decoding and displaying multiple streams using gstreamer-vaapi

[Andreas Larsson]

Hi!

We're currently in the process of developing a player that should play back multiple incoming streams in a split screen scenario. We plan to use gstreamer and gstreamer-vaapi. We're using the latest EMGD-driver from Intel with a US15W (GMA500) graphics chipset.

We've done some initial tests and have encountered various problems with video surfaces starving each other. I.e. one shows video for a breif moment while the other is green and vice versa, flickering back and forth.

For this setup, what are you recommendations on how to implement it? Any common pitfalls regarding threading and the libva backend? How would gstvideocontext relate to all this? Is it possible at all?

Kind regards, Andreas Larsson

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Software Design Manager
MultiQ AB
Sweden
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