Tim,
We have tested gstreamer pipelines from the video source to the frame
buffer sink without enconding/decoding on the middle and the latency
is unnoticeable. You can probably modify the encode/decode demo to do
not perform the encoding/decoding part and will get a lower latency.
Depending on the product requirements you can achieve zero-copy
behavior by modifying the V4L2 driver to capture the CCD data straight
to the memory address of the frame buffer, but that may complicate
things for the recording process.
Diego
On Mar 18, 2008, at 2:36 PM, [EMAIL PROTECTED] wrote:
I am showing a viewing a live camera through the EncodeDecode demo
and there seems to be ~1/3 second latency between live movement and
screen display. This will be annoying to the user for my product.
Has anyone found a way to reduce the perceived latency by displaying
the incoming video directly without having to encode and decode it
first, while still having overlay function?
------------------------------------------
Tim Taylor
Electrical Engineer
L-3 Communications
Linkabit-Florida
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