# SDL_TransferCharacteristics

Colorspace transfer characteristics.

## Header File

Defined in [<SDL3/SDL_pixels.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_pixels.h)

## Syntax

```c
typedef enum SDL_TransferCharacteristics
{
    SDL_TRANSFER_CHARACTERISTICS_UNKNOWN = 0,
    SDL_TRANSFER_CHARACTERISTICS_BT709 = 1,         /**< Rec. ITU-R BT.709-6 / ITU-R BT1361 */
    SDL_TRANSFER_CHARACTERISTICS_UNSPECIFIED = 2,
    SDL_TRANSFER_CHARACTERISTICS_GAMMA22 = 4,       /**< ITU-R BT.470-6 System M / ITU-R BT1700 625 PAL & SECAM */
    SDL_TRANSFER_CHARACTERISTICS_GAMMA28 = 5,       /**< ITU-R BT.470-6 System B, G */
    SDL_TRANSFER_CHARACTERISTICS_BT601 = 6,         /**< SMPTE ST 170M / ITU-R BT.601-7 525 or 625 */
    SDL_TRANSFER_CHARACTERISTICS_SMPTE240 = 7,      /**< SMPTE ST 240M */
    SDL_TRANSFER_CHARACTERISTICS_LINEAR = 8,
    SDL_TRANSFER_CHARACTERISTICS_LOG100 = 9,
    SDL_TRANSFER_CHARACTERISTICS_LOG100_SQRT10 = 10,
    SDL_TRANSFER_CHARACTERISTICS_IEC61966 = 11,     /**< IEC 61966-2-4 */
    SDL_TRANSFER_CHARACTERISTICS_BT1361 = 12,       /**< ITU-R BT1361 Extended Colour Gamut */
    SDL_TRANSFER_CHARACTERISTICS_SRGB = 13,         /**< IEC 61966-2-1 (sRGB or sYCC) */
    SDL_TRANSFER_CHARACTERISTICS_BT2020_10BIT = 14, /**< ITU-R BT2020 for 10-bit system */
    SDL_TRANSFER_CHARACTERISTICS_BT2020_12BIT = 15, /**< ITU-R BT2020 for 12-bit system */
    SDL_TRANSFER_CHARACTERISTICS_PQ = 16,           /**< SMPTE ST 2084 for 10-, 12-, 14- and 16-bit systems */
    SDL_TRANSFER_CHARACTERISTICS_SMPTE428 = 17,     /**< SMPTE ST 428-1 */
    SDL_TRANSFER_CHARACTERISTICS_HLG = 18,          /**< ARIB STD-B67, known as "hybrid log-gamma" (HLG) */
    SDL_TRANSFER_CHARACTERISTICS_CUSTOM = 31
} SDL_TransferCharacteristics;
```

## Remarks

These are as described by https://www.itu.int/rec/T-REC-H.273-201612-S/en

## Version

This enum is available since SDL 3.2.0.

----
[CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum), [CategoryPixels](CategoryPixels)

