Filter colormatrix
  Convert color matrix.
    slice threading supported
    Inputs:
       #0: default (video)
    Outputs:
       #0: default (video)
colormatrix AVOptions:
  src               <int>        ..FV.... set source color matrix (from -1 to 4) (default -1)
     bt709                        ..FV.... set BT.709 colorspace
     fcc                          ..FV.... set FCC colorspace   
     bt601                        ..FV.... set BT.601 colorspace
     bt470                        ..FV.... set BT.470 colorspace
     bt470bg                      ..FV.... set BT.470 colorspace
     smpte170m                    ..FV.... set SMTPE-170M colorspace
     smpte240m                    ..FV.... set SMPTE-240M colorspace
     bt2020                       ..FV.... set BT.2020 colorspace
  dst               <int>        ..FV.... set destination color matrix (from -1 to 4) (default -1)
     bt709                        ..FV.... set BT.709 colorspace
     fcc                          ..FV.... set FCC colorspace   
     bt601                        ..FV.... set BT.601 colorspace
     bt470                        ..FV.... set BT.470 colorspace
     bt470bg                      ..FV.... set BT.470 colorspace
     smpte170m                    ..FV.... set SMTPE-170M colorspace
     smpte240m                    ..FV.... set SMPTE-240M colorspace
     bt2020                       ..FV.... set BT.2020 colorspace

This filter has support for timeline through the 'enable' option.

