From 7098bec73bd3de63f514ba6ec091fd2f5096ddce Mon Sep 17 00:00:00 2001 From: Leo Izen Date: Wed, 16 Aug 2023 00:54:36 -0400 Subject: [PATCH] avcodec/exr: tag gamma=1.0 output as linear light By default the OpenEXR decoder outputs linear light pixel data by applying a gamma=1.0 transfer (i.e. a no-op). When it does so, it should tag the data as linear so color-managed filters or other tools can work with it correctly. Signed-off-by: Leo Izen --- libavcodec/exr.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/exr.c b/libavcodec/exr.c index fae1d08ab0..518066facf 100644 --- a/libavcodec/exr.c +++ b/libavcodec/exr.c @@ -2088,6 +2088,8 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *picture, if (s->apply_trc_type != AVCOL_TRC_UNSPECIFIED) avctx->color_trc = s->apply_trc_type; + else if (s->gamma > 0.9999f && s->gamma < 1.0001f) + avctx->color_trc = AVCOL_TRC_LINEAR; switch (s->compression) { case EXR_RAW: