From ec0489e35c2b996ce70e13201bb44a545736d3b5 Mon Sep 17 00:00:00 2001 From: Niklas Haas Date: Mon, 25 Nov 2024 11:45:13 +0100 Subject: [PATCH] avutil/csp: fix documentation of av_csp_trc_function This explanation was inaccurate and highly misleading. The new wording is taken more or less directly from ITU-T H.273, and also matches my understanding of these functions. --- libavutil/csp.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/libavutil/csp.h b/libavutil/csp.h index 73bce52bc0..bc8f3dc9f6 100644 --- a/libavutil/csp.h +++ b/libavutil/csp.h @@ -81,8 +81,12 @@ typedef struct AVColorPrimariesDesc { } AVColorPrimariesDesc; /** - * Function pointer representing a double -> double transfer function that performs - * an EOTF transfer inversion. This function outputs linear light. + * Function pointer representing a double -> double transfer function that + * performs either an OETF transfer function, or alternatively an inverse EOTF + * function (in particular, for SMPTE ST 2084 / PQ). This function inputs + * linear light, and outputs gamma encoded light. + * + * See ITU-T H.273 for more information. */ typedef double (*av_csp_trc_function)(double);