v4l2: No handling of no-show frames in decoder plugin

[Pratik Pachange (QUIC)]

Hi Team,

For AV1 codec format, there are certain no-show frames (show_frame flag set to 0) given by the video driver/fw as decoded output which needs to dropped/discarded by the client.
On v4l2 side, the only way to identify such buffers is that their bytesused is 0 (or filledlen is 0).

Currently in v4l2 plugins, there is no handling to drop such buffers.
Can we plan to add any handling to drop/discard empty buffers (bytesused 0).


Thanks,
Pratik

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