Encoder msmpeg4 [MPEG-4 part 2 Microsoft variant version 3]:
    Threading capabilities: no
    Supported pixel formats: yuv420p
msmpeg4v3 encoder AVOptions:
-mpv_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.
   skip_rd                      E..V.. RD optimal MB level residual skipping
   strict_gop                   E..V.. Strictly enforce gop size
   qp_rd                        E..V.. Use rate distortion optimization for qp selection
   cbp_rd                       E..V.. use rate distortion optimization for CBP
-luma_elim_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-chroma_elim_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX)
-quantizer_noise_shaping <int>        E..V.. (from 0 to INT_MAX)

