vd: use ST.2086 / HDR10 MaxCLL in addition to mastering metadata

MaxCLL is the more authoritative source for the metadata we are
interested in. The use of mastering metadata is sort of a hack anyway,
since there's no clearly-defined relationship between the mastering peak
brightness and the actual content. (Unlike MaxCLL, which is an explicit
relationship)

Also move the parameter fixing to `fix_image_params`

I don't know if the avutil check is strictly necessary but I've included
it anyway to be on the safe side.

1 files changed, 1 insertions, 1 deletions

diff --git a/video/decode/lavc.h b/video/decode/lavc.h
index f58ee8bc1e..e567a49b4e 100644
--- a/video/decode/lavc.h
+++ b/video/decode/lavc.h
@@ -39,7 +39,7 @@ typedef struct lavc_ctx {
     int framedrop_flags;
 
     // For HDR side-data caching
-    double cached_hdr_peak;
+    float cached_sig_peak;
 
     bool hw_probing;
     struct demux_packet **sent_packets;