From: Niklas Haas <g...@haasn.dev>
Provide default values for the fields added in the previous commit.
---
libswscale/utils.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 428cf1c7f5..2d8fc10beb 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -2654,6 +2654,8 @@ int ff_range_add(RangeList *rl, unsigned int start,
unsigned int len)
SwsFormat ff_fmt_from_frame(const AVFrame *frame, int field)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ const AVColorPrimariesDesc *primaries;
+
SwsFormat fmt = {
.width = frame->width,
.height = frame->height,
@@ -2710,6 +2712,21 @@ SwsFormat ff_fmt_from_frame(const AVFrame *frame, int
field)
fmt.interlaced = 1;
}
+ /* Set luminance and gamut information */
+ fmt.color.min_luma = av_make_q(0, 1);
+ switch (fmt.color.trc) {
+ case AVCOL_TRC_SMPTE2084:
+ fmt.color.max_luma = av_make_q(10000, 1); break;
+ case AVCOL_TRC_ARIB_STD_B67:
+ fmt.color.max_luma = av_make_q( 1000, 1); break; /* HLG reference
display */
+ default:
+ fmt.color.max_luma = av_make_q( 203, 1); break; /* SDR reference
brightness */
+ }
+
+ primaries = av_csp_primaries_desc_from_id(fmt.color.prim);
+ if (primaries)
+ fmt.color.gamut = primaries->prim;
+
return fmt;
}
--
2.47.0
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