Names of output parameters for color spaces

[Helg]

Hi!
Please tell me where I can get the names of all output MediaInfo values for parameters:

• color primaries (smpte170m, bt470bg, bt470m, smpte240m, film, smpte428, smpte431, smpte432)

• color matrix (fcc, bt470bg, smpte170m, smpte240m, GBR, YCgCo, bt2020c, smpte2085, chroma-derived-nc, chroma-derived-c, ICtCp)

• transfer characteristics (bt470m, bt470bg, smpte170m, smpte240m, linear, log100, log316, iec61966-2-4, bt1361e, iec61966-2-1, bt2020-10, bt2020-12, smpte2084, smpte428)

Thanks!

[Jerome Martinez]

colour_primaries, transfer_characteristics, matrix_coefficients.

Generaly speaking, you can get the name of the fields with the command line option --Language=raw or with the XML/JSON outputs.

[Helg]

No, I mean what will these parameters be called in Mediainfo? I am making a video encoder in c++ and I need to correctly decrypt the information about these parameters in order to re-encode the file and save the information.

For example, I know that bt2020nc - is BT. 2020 non-constant
bt709 - is BT.709

[Jerome Martinez]

ha.

//---------------------------------------------------------------------------
extern const char* Mpegv_colour_primaries(int8u colour_primaries)
{
    switch (colour_primaries)
    {
        case  1 : return "BT.709";
        case  4 : return "BT.470 System M";
        case  5 : return "BT.601 PAL";
        case  6 : return "BT.601 NTSC";
        case  7 : return "SMPTE 240M"; //Same as BT.601 NTSC
        case  8 : return "Generic film";
        case  9 : return "BT.2020";                                     //Added in HEVC
        case 10 : return "XYZ";                                         //Added in HEVC 2014
        case 11 : return "DCI P3";                                      //Added in HEVC 2016
        case 12 : return "Display P3";                                  //Added in HEVC 2016
        case 22 : return "EBU Tech 3213";                               //Added in HEVC 2016
        default : return "";
    }
}

//---------------------------------------------------------------------------
extern const char* Mpegv_transfer_characteristics(int8u transfer_characteristics)
{
    switch (transfer_characteristics)
    {
        case  1 : return "BT.709"; //Same as BT.601
        case  4 : return "BT.470 System M";
        case  5 : return "BT.470 System B/G";
        case  6 : return "BT.601";
        case  7 : return "SMPTE 240M";
        case  8 : return "Linear";
        case  9 : return "Logarithmic (100:1)";                         //Added in MPEG-4 Visual
        case 10 : return "Logarithmic (316.22777:1)";                   //Added in MPEG-4 Visual
        case 11 : return "xvYCC";                                       //Added in AVC
        case 12 : return "BT.1361";                                     //Added in AVC
        case 13 : return "sRGB/sYCC";                                   //Added in HEVC
        case 14 : return "BT.2020 (10-bit)"; //Same a BT.601            //Added in HEVC, 10/12-bit difference is in ISO 23001-8
        case 15 : return "BT.2020 (12-bit)"; //Same a BT.601            //Added in HEVC, 10/12-bit difference is in ISO 23001-8
        case 16 : return "PQ";                                          //Added in HEVC 2015
        case 17 : return "SMPTE 428M";                                  //Added in HEVC 2015
        case 18 : return "HLG";                                         //Added in HEVC 2016
        default : return "";
    }
}

//---------------------------------------------------------------------------
extern const char* Mpegv_matrix_coefficients(int8u matrix_coefficients)
{
    switch (matrix_coefficients)
    {
        case  0 : return "Identity";                                    //Added in AVC
        case  1 : return "BT.709";
        case  4 : return "FCC 73.682";
        case  5 : return "BT.470 System B/G";
        case  6 : return "BT.601"; //Same as BT.470 System B/G
        case  7 : return "SMPTE 240M";
        case  8 : return "YCgCo";                                       //Added in AVC
        case  9 : return "BT.2020 non-constant";                        //Added in HEVC
        case 10 : return "BT.2020 constant";                            //Added in HEVC
        case 11 : return "Y'D'zD'x";                                    //Added in HEVC 2016
        case 12 : return "Chromaticity-derived non-constant";           //Added in HEVC 2016
        case 13 : return "Chromaticity-derived constant";               //Added in HEVC 2016
        case 14 : return "ICtCp";                                       //Added in HEVC 2016
        default : return "";
    }
}

[Helg]

Thanks!