[FFmpeg-devel] [PATCH v2] avcodec/libjxlenc: avoid hard failure with unspecified primaries

[Leo Izen]

This patch prevents the libjxl encoder wrapper from failing to
encode images when the input video has untagged primaries. It will
instead assume BT.709/sRGB primaries and print a warning.

Signed-off-by: Leo Izen <leo.izen at gmail.com>
---
 libavcodec/libjxlenc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libavcodec/libjxlenc.c b/libavcodec/libjxlenc.c
index 6a948cc3ae..3910d93e82 100644
--- a/libavcodec/libjxlenc.c
+++ b/libavcodec/libjxlenc.c
@@ -211,6 +211,11 @@ static int libjxl_populate_primaries(JxlColorEncoding *jxl_color, enum AVColorPr
         jxl_color->primaries = JXL_PRIMARIES_P3;
         jxl_color->white_point = JXL_WHITE_POINT_D65;
         return 0;
+    case AVCOL_PRI_UNSPECIFIED:
+        av_log(avctx, AV_LOG_WARNING, "Unknown primaries, assuming BT.709/sRGB. Colors may be wrong.\n");
+        jxl_color->primaries = JXL_PRIMARIES_SRGB;
+        jxl_color->white_point = JXL_WHITE_POINT_D65;
+        return 0;
     }
 
     desc = av_csp_primaries_desc_from_id(prm);
-- 
2.37.0