[FFmpeg-devel] [PATCH] avformat/avio: Schedule AVIODirContext to become an opaque type

[Andreas Rheinhardt <andreas.rheinhardt@outlook.com>]

Users can't make anything with its content.
Making it opaque might allow us to avoid one level of indirection.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 doc/APIchanges              | 3 +++
 libavformat/avio.c          | 6 ++++++
 libavformat/avio.h          | 4 ++++
 libavformat/version_major.h | 1 +
 4 files changed, 14 insertions(+)

diff --git a/doc/APIchanges b/doc/APIchanges
index b0a41c9e37..195e3b82d4 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -14,6 +14,9 @@ libavutil:     2021-04-27
 
 API changes, most recent first:
 
+2022-09-26 - xxxxxxxxxx - lavf 59.yy.100 - avio.h
+  Make AVIODirContext an opaque type in a future major version bump.
+
 2022-09-26 - xxxxxxxxxx - lavc 59.48.100 - avcodec.h
   Deprecate avcodec_enum_to_chroma_pos() and avcodec_chroma_pos_to_enum().
   Use av_chroma_location_enum_to_pos() or av_chroma_location_pos_to_enum()
diff --git a/libavformat/avio.c b/libavformat/avio.c
index 4846bbd8c6..ab1c19a58d 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -528,6 +528,12 @@ int ffurl_delete(const char *url)
     return ret;
 }
 
+#if !FF_API_AVIODIRCONTEXT
+struct AVIODirContext {
+    struct URLContext *url_context;
+};
+#endif
+
 int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options)
 {
     URLContext *h = NULL;
diff --git a/libavformat/avio.h b/libavformat/avio.h
index 36c3d7b430..7e4aa9a1c8 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -101,9 +101,13 @@ typedef struct AVIODirEntry {
     int64_t filemode;                     /**< Unix file mode, -1 if unknown. */
 } AVIODirEntry;
 
+#if FF_API_AVIODIRCONTEXT
 typedef struct AVIODirContext {
     struct URLContext *url_context;
 } AVIODirContext;
+#else
+typedef struct AVIODirContext AVIODirContext;
+#endif
 
 /**
  * Different data types that can be returned via the AVIO
diff --git a/libavformat/version_major.h b/libavformat/version_major.h
index 099a17873f..86af3ee4a5 100644
--- a/libavformat/version_major.h
+++ b/libavformat/version_major.h
@@ -47,6 +47,7 @@
 #define FF_HLS_TS_OPTIONS               (LIBAVFORMAT_VERSION_MAJOR < 60)
 #define FF_API_AVSTREAM_CLASS           (LIBAVFORMAT_VERSION_MAJOR > 59)
 #define FF_API_GET_END_PTS              (LIBAVFORMAT_VERSION_MAJOR < 60)
+#define FF_API_AVIODIRCONTEXT           (LIBAVFORMAT_VERSION_MAJOR < 60)
 
 
 #define FF_API_R_FRAME_RATE            1
-- 
2.34.1

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