| Value | Meaning | 
|---|---|
| AVCOL_TRC_RESERVED00 | |
| AVCOL_TRC_BT7091 | < also ITU-R BT1361  | 
| AVCOL_TRC_UNSPECIFIED2 | |
| AVCOL_TRC_RESERVED3 | |
| AVCOL_TRC_GAMMA224 | < also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM  | 
| AVCOL_TRC_GAMMA285 | < also ITU-R BT470BG  | 
| AVCOL_TRC_SMPTE170M6 | < also ITU-R BT601-6 525 or 625 / ITU-R BT1358 525 or 625 / ITU-R BT1700 NTSC  | 
| AVCOL_TRC_SMPTE240M7 | |
| AVCOL_TRC_LINEAR8 | < "Linear transfer characteristics"  | 
| AVCOL_TRC_LOG9 | < "Logarithmic transfer characteristic (100:1 range)"  | 
| AVCOL_TRC_LOG_SQRT10 | < "Logarithmic transfer characteristic (100 * Sqrt(10) : 1 range)"  | 
| AVCOL_TRC_IEC61966_2_411 | < IEC 61966-2-4  | 
| AVCOL_TRC_BT1361_ECG12 | < ITU-R BT1361 Extended Colour Gamut  | 
| AVCOL_TRC_IEC61966_2_113 | < IEC 61966-2-1 (sRGB or sYCC)  | 
| AVCOL_TRC_BT2020_1014 | < ITU-R BT2020 for 10-bit system  | 
| AVCOL_TRC_BT2020_1215 | < ITU-R BT2020 for 12-bit system  | 
| AVCOL_TRC_SMPTE208416 | < SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems  | 
| AVCOL_TRC_SMPTEST2084AVCOL_TRC_SMPTE2084 | |
| AVCOL_TRC_SMPTE42817 | < SMPTE ST 428-1  | 
| AVCOL_TRC_SMPTEST428_1AVCOL_TRC_SMPTE428 | |
| AVCOL_TRC_ARIB_STD_B6718 | < ARIB STD-B67, known as "Hybrid log-gamma"  | 
| AVCOL_TRC_NB19 | < Not part of ABI  | 
Color Transfer Characteristic. These values match the ones defined by ISO/IEC 23001-8_2013 § 7.2.