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Zoe Liu authored
This is for the bidir-pred experiment. Previously the length of the bi-predictive frame group interval is fixed at 2, i.e. one bi-predictive frame may be inserted every other frame. This patch makes the length adjustable, i.e. any positive number may be specified, but the use of the backward ref will be turned off if the bi-predictive frame group interval is larger than the golden frame group. Further, an additional rate factor level has been added: INTER_LOW , which applies to LAST_BIPRED_UPDATE frames that are not used as references. Change-Id: I5514d34a64dd486bbb5756c2d0612946f598a789
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