
The SDR constant also specified a color space and range, in addition to C.COLOR_TRANSFER_SDR. However, it turns out that SDR videos may use different color space and range values, so following prior ExoPlayer conventions to have `null` mean "generic SDR" is preferable here. PiperOrigin-RevId: 459296746 (cherry picked from commit 4230ea94e956bacc1bb3b6737686a845bc077dd9)