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Old 15 Jul 2010, 05:30 PM   #1
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Default H.264 direct mode with fractional MVs


Can somebody tell me how an encoder(JM) can be forced to generate bitstreams in which the B frames have all MBs coded : direct mode AND
2. with fractional Motion vectors.

1. is easy by artifically forcing a very low direct mode cost and thus the encoder always chooses direct mode.

2. But i am not able to figure out how to force all the direct mode MVs to be fractional( non-integer-pel)? Is this possible and if yes, how does one do it?

Any hints would be gratefully received
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