• Yaowu Xu's avatar
    cap the best quantizer for 2nd order DC · 999e155f
    Yaowu Xu authored
    This commit also removes artificial RDMULT cap for low quantizers.
    The intention is to address some abnormal behavior of mode selections
    at the low quantizer end, where many macroblocks were coded with
    SPLITMV with all partitions using same motion vector including (0,0).
    This change improves the compression quality substantially for high
    quality encodings in both PSNR and SSIM terms. Overall effect on
    mid/low rate range is also positive for all metrics, but smaller
    in magnitude.
    Change-Id: I864b29c4bd9ff610d2545fa94a19cc7e80c02667