avcodec/codec_par: Move enum AVFieldOrder to defs.h

It is also used by AVCodecContext.
Reviewed-by: James Almer <jamrial@gmail.com>
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

doc/APIchanges

@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2023-02-09
 
 API changes, most recent first:
 
+2023-10-03 - xxxxxxxxxx - lavc 60.28.100 - codec_par.h defs.h
+  Move the definition of enum AVFieldOrder from codec_par.h to defs.h.
+
 2023-10-03 - xxxxxxxxxx - lavf 60.14.100 - avformat.h
   Deprecate AVFMT_ALLOW_FLUSH without replacement. Users can always
   flush any muxer by sending a NULL packet.

libavcodec/codec_par.h

@@ -29,21 +29,13 @@
 #include "libavutil/pixfmt.h"
 
 #include "codec_id.h"
+#include "defs.h"
 
 /**
  * @addtogroup lavc_core
  * @{
  */
 
-enum AVFieldOrder {
-    AV_FIELD_UNKNOWN,
-    AV_FIELD_PROGRESSIVE,
-    AV_FIELD_TT,          ///< Top coded_first, top displayed first
-    AV_FIELD_BB,          ///< Bottom coded first, bottom displayed first
-    AV_FIELD_TB,          ///< Top coded first, bottom displayed first
-    AV_FIELD_BT,          ///< Bottom coded first, top displayed first
-};
-
 /**
  * This struct describes the properties of an encoded stream.
  *

libavcodec/defs.h

@@ -195,6 +195,14 @@
 
 #define AV_LEVEL_UNKNOWN                  -99
 
+enum AVFieldOrder {
+    AV_FIELD_UNKNOWN,
+    AV_FIELD_PROGRESSIVE,
+    AV_FIELD_TT,          ///< Top coded_first, top displayed first
+    AV_FIELD_BB,          ///< Bottom coded first, bottom displayed first
+    AV_FIELD_TB,          ///< Top coded first, bottom displayed first
+    AV_FIELD_BT,          ///< Bottom coded first, top displayed first
+};
 
 /**
  * @ingroup lavc_decoding

libavcodec/version.h

@@ -29,7 +29,7 @@
 
 #include "version_major.h"
 
-#define LIBAVCODEC_VERSION_MINOR  27
+#define LIBAVCODEC_VERSION_MINOR  28
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \