vd_lavc: move display mastering data stuff to mp_image

This is where it should be. It only wasn't because of an old libavcodec
bug, that returned the side data only on every IDR. This required some
sort of caching, which is now dropped. (mp_image wouldn't have been able
to do this kind of caching, because this code is stateless.) We don't
support these old libavcodec versions anymore, which is why this is not
needed anymore.

Also move initialization of rotation/stereo stuff to dec_video.c.

1 files changed, 19 insertions, 0 deletions

diff --git a/video/mp_image.c b/video/mp_image.c
index 47ea115a90..6934ff4c58 100644
--- a/video/mp_image.c
+++ b/video/mp_image.c
@@ -26,6 +26,10 @@
 #include <libavutil/rational.h>
 #include <libavcodec/avcodec.h>
 
+#if LIBAVUTIL_VERSION_MICRO >= 100
+#include <libavutil/mastering_display_metadata.h>
+#endif
+
 #include "mpv_talloc.h"
 
 #include "config.h"
@@ -872,6 +876,21 @@ struct mp_image *mp_image_from_av_frame(struct AVFrame *src)
     sd = av_frame_get_side_data(src, AV_FRAME_DATA_ICC_PROFILE);
     if (sd)
         dst->icc_profile = av_buffer_ref(sd->buf);
+
+    // Get the content light metadata if available
+    sd = av_frame_get_side_data(src, AV_FRAME_DATA_CONTENT_LIGHT_LEVEL);
+    if (sd) {
+        AVContentLightMetadata *clm = (AVContentLightMetadata *)sd->data;
+        dst->params.color.sig_peak = clm->MaxCLL / MP_REF_WHITE;
+    }
+
+    // Otherwise, try getting the mastering metadata if available
+    sd = av_frame_get_side_data(src, AV_FRAME_DATA_MASTERING_DISPLAY_METADATA);
+    if (!dst->params.color.sig_peak && sd) {
+        AVMasteringDisplayMetadata *mdm = (AVMasteringDisplayMetadata *)sd->data;
+        if (mdm->has_luminance)
+            dst->params.color.sig_peak = av_q2d(mdm->max_luminance) / MP_REF_WHITE;
+    }
 #endif
 
     if (dst->hwctx) {