[FFmpeg-devel] [PATCH 1/2] libavutil: Add av_visibility_hidden for setting hidden symbol visibility

["Martin Storsjö" <martin@martin.st>]

Signed-off-by: Martin Storsjö <martin@martin.st>
---
 doc/APIchanges         | 3 +++
 libavutil/attributes.h | 6 ++++++
 libavutil/version.h    | 2 +-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/doc/APIchanges b/doc/APIchanges
index 20b944933a..5d84bc27d7 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -14,6 +14,9 @@ libavutil:     2021-04-27
 
 API changes, most recent first:
 
+2022-xx-xx - xxxxxxxxxx - lavu 57.28.100 - attributes.h
+  Add av_visibility_hidden, for setting hidden visibilty on symbols.
+
 2022-06-12 - xxxxxxxxxx - lavf 59.25.100 - avio.h
   Add avio_vprintf(), similar to avio_printf() but allow to use it
   from within a function taking a variable argument list as input.
diff --git a/libavutil/attributes.h b/libavutil/attributes.h
index 04c615c952..dc4c88932c 100644
--- a/libavutil/attributes.h
+++ b/libavutil/attributes.h
@@ -170,4 +170,10 @@
 #    define av_noreturn
 #endif
 
+#if (AV_GCC_VERSION_AT_LEAST(4,0) || defined(__clang__)) && (defined(__ELF__) || defined(__MACH__))
+#    define av_visibility_hidden __attribute__((visibility("hidden")))
+#else
+#    define av_visibility_hidden
+#endif
+
 #endif /* AVUTIL_ATTRIBUTES_H */
diff --git a/libavutil/version.h b/libavutil/version.h
index 2e9e02dda8..87178e9e9a 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  57
-#define LIBAVUTIL_VERSION_MINOR  27
+#define LIBAVUTIL_VERSION_MINOR  28
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
-- 
2.25.1

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