changes_old versions.txt

avs源代码

RM52e Compared with RM52c
--encoder/decoder:fixed bug for Chroma intra prediction
--encoder/decoder:fixed bug for direct MV storage
--encoder/decoder:fixed bug for intra prediction initialization
--encoder/decoder:implemented the Weighted Prediction of AVS_M1208

RM52c Compared with RM52b 
--encoder: bug for RDO off: correct 8x8 cost calculation and comparison with other modes (SW)

RM52b Compared with RM52a_rc  
--encoder: NumberOfRowsInSlice=0 means one slice per frame (SW)
--encoder/decoder: clear most garbage code for 4x4 block coding, interlace coding (SW)

RM52a_rc Compared with RM52
-- add H.264 rate control for AVS visual testing and comparison between AVS and H.264 (SW)


RM52 Compared with RM51x
-- weighting prediction sytanx change (SW)
-- add H.264/AVC rate control scheme for visual test (SW)
-- add image extending for visual test (for example, support 1920x1080 input, in fact, coded as 1920x1088) (SW)

****** RM51a Compared with RM51 ******
--fixed bug for frame_rate and chroma_format (XF)
--fixed bug for mbtype
--fixed bug for picture_reference_flag
****** RM51 Compared with RM50f ******
--fixed bug for random read
--fixed slice
--fixed block calculation
--fixed table of CBP in VLC

****** RM50f Compared with RM50e ******
--fixed MVD base on AVS standard paper

****** RM50e Compared with RM50d ******
--fixed bugs for loopfilter off

****** RM50d Compared with RM50c ******
--fixed motion vector prediction

****** RM50c Compared with RM50b ******
--bug fix for RDOptimization off
--slice  support

****** RM50b Compared with RM50a ******
--bug fix for 1/4 interpolation(using 1/2 interpolation results directly)

****** RM50a Compared with RM50  ******
--B frame loop filter support