mp_image: pass through unknown AVFrame side data

Useful for libavfilter. Somewhat risky, because we can't ensure the
consistency of the unknown side data (but this is a general problem with
side data, and libavfilter filters will usually get it wrong too _if_
there are conflict cases).

Fixes #5569.

1 files changed, 8 insertions, 0 deletions

diff --git a/video/mp_image.h b/video/mp_image.h
index f7969a4314..88e261306f 100644
--- a/video/mp_image.h
+++ b/video/mp_image.h
@@ -121,8 +121,16 @@ typedef struct mp_image {
     struct AVBufferRef *icc_profile;
     // Closed captions packet, if any (only after decoder)
     struct AVBufferRef *a53_cc;
+    // Other side data we don't care about.
+    struct mp_ff_side_data *ff_side_data;
+    int num_ff_side_data;
 } mp_image_t;
 
+struct mp_ff_side_data {
+    int type;
+    struct AVBufferRef *buf;
+};
+
 int mp_chroma_div_up(int size, int shift);
 
 int mp_image_get_alloc_size(int imgfmt, int w, int h, int stride_align);