From a87b5d5e8c9424b5cadd46abba98dae8edd454df Mon Sep 17 00:00:00 2001 From: Zhong Li Date: Wed, 4 Dec 2019 14:24:09 +0000 Subject: [PATCH] lavc/x265: set preferred_transfer_characteristics for HLG "HEVC HDR UHDTV Bitstreams using HLG10 shall also contain the alternative_transfer_characteristics SEI message. The alternative_transfer_characteristics SEI message shall be inserted on the HEVC DVB_RAP, and preferred_transfer_characteristics shall be set equal to "18", indicating Recommendation ITU-R BT. 2100 [45] HLG system." Signed-off-by: Zhong Li --- libavcodec/libx265.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/libx265.c b/libavcodec/libx265.c index 4e7507728f..963c28fb1d 100644 --- a/libavcodec/libx265.c +++ b/libavcodec/libx265.c @@ -159,6 +159,10 @@ static av_cold int libx265_encode_init(AVCodecContext *avctx) // x265 validates the parameters internally ctx->params->vui.colorPrimaries = avctx->color_primaries; ctx->params->vui.transferCharacteristics = avctx->color_trc; +#if X265_BUILD >= 159 + if (avctx->color_trc == AVCOL_TRC_ARIB_STD_B67) + ctx->params->preferredTransferCharacteristics = ctx->params->vui.transferCharacteristics; +#endif ctx->params->vui.matrixCoeffs = avctx->colorspace; }