This is a partial revert of f2ad6238e4c0e99e2fc131ee14c586e87b045680
It fixes per-frame color_trc signaling of arib-std-b67 frames.
Reproducible with:
ffprobe -show_frames lg_4k_hlg.ts | grep color_transfer=
---
libavcodec/hevcdec.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index c1de75abe1..e3d1e3f693 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -2810,6 +2810,12 @@ static int set_side_data(HEVCContext *s)
s->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
}
+ if (s->sei.alternative_transfer.present &&
+
av_color_transfer_name(s->sei.alternative_transfer.preferred_transfer_characteristics)
&&
+ s->sei.alternative_transfer.preferred_transfer_characteristics !=
AVCOL_TRC_UNSPECIFIED) {
+ s->avctx->color_trc = out->color_trc =
s->sei.alternative_transfer.preferred_transfer_characteristics;
+ }
+
for (int i = 0; i < s->sei.unregistered.nb_buf_ref; i++) {
HEVCSEIUnregistered *unreg = &s->sei.unregistered;
--
2.26.2
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