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Altera_Forum
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16 years ago

DeInterlacer, Double Buffering and Stalling Behavour

Hi, Does anybody know what the de-interlacer, using double buffering and the weave algorithm, will do when the output is stalled long enough so that the input has finished the current input bu...
Altera_Forum's avatar
Altera_Forum
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16 years ago

Hi,

When using double buffering, the deinterlacer will never drop incoming fields unless there is something unexpected with the input stream (eg, a change of resolution, two consecutive F0 fields, ...). When the input has filled the current input buffer, it has to wait for the output to be ready to perform a swap. Consequently, if back-pressure is applied at the output for a long period of time then the input will also start to apply back-pressure a while later.

vgs