tree fadf07fc02304a988fba0374ff205efb116281c2
parent 42140b29e8e9f50fd01b6db3a0a25a95ff0e8f55
author venkat sanampudi <sanampudi.venkatarao@ittiam.com> 1684294584 +0530
committer Yunqing Wang <yunqingwang@google.com> 1684860977 +0000

Introduce adjust_num_frames_for_arf_filtering sf for speed 6

For temporal filtering, the number of frames required for
filtering is adjusted based on frame update type, q index,
arf-boost and a sf 'num_frames_used_in_tf'. This CL introduces
a sf 'adjust_num_frames_for_arf_filtering' to adjust the frame
count based on the noise level of the current frame. The
adjustment is done such that low-noise frame considers more
frames to provide a filtered frame which can be used for better
prediction and vice versa for high-noise frames. Currently, the
sf is enabled only for speed 6.

     Instruction Count        BD-Rate Loss(%)
cpu    Reduction(%)    avg.psnr   ovr.psnr    ssim
 6        1.795       -0.1979    -0.1324     -0.2099

STATS_CHANGED

Change-Id: I010554b3cd0a15dee83af9a3572243137b67cec7