[FFmpeg-devel] [RFC/PATCH 1/2] lavf: add a flag for experimental (de)muxers

[Anton Khirnov <anton@khirnov.net>]

---
 doc/APIchanges         | 3 +++
 libavformat/avformat.h | 7 +++++++
 libavformat/format.c   | 2 ++
 libavformat/version.h  | 2 +-
 4 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/doc/APIchanges b/doc/APIchanges
index 670a59329e..29c235630e 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -14,6 +14,9 @@ libavutil:     2021-04-27
 
 API changes, most recent first:
 
+2022-01-xx - xxxxxxxxxx - lavf 59.13.100 - avformat.h
+  Add AVFMT_EXPERIMENTAL flag.
+
 2021-12-xx - xxxxxxxxxx - lavu 57.13.100 - hwcontext_videotoolbox.h
   Add av_vt_pixbuf_set_attachments
 
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 70b36d7682..6ce367e854 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -463,6 +463,13 @@ typedef struct AVProbeData {
 /// Demuxer will use avio_open, no opened file should be provided by the caller.
 #define AVFMT_NOFILE        0x0001
 #define AVFMT_NEEDNUMBER    0x0002 /**< Needs '%d' in filename. */
+/**
+ * The muxer/demuxer is experimental and should be used with caution.
+ *
+ * - demuxers: will not be selected automatically by probing, must be specified
+ *             explicitly.
+ */
+#define AVFMT_EXPERIMENTAL  0x0004
 #define AVFMT_SHOW_IDS      0x0008 /**< Show format stream IDs numbers. */
 #define AVFMT_GLOBALHEADER  0x0040 /**< Format wants global header. */
 #define AVFMT_NOTIMESTAMPS  0x0080 /**< Format does not need / have any timestamps. */
diff --git a/libavformat/format.c b/libavformat/format.c
index 387627009e..52b85c16a2 100644
--- a/libavformat/format.c
+++ b/libavformat/format.c
@@ -158,6 +158,8 @@ const AVInputFormat *av_probe_input_format3(const AVProbeData *pd,
     }
 
     while ((fmt1 = av_demuxer_iterate(&i))) {
+        if (fmt1->flags & AVFMT_EXPERIMENTAL)
+            continue;
         if (!is_opened == !(fmt1->flags & AVFMT_NOFILE) && strcmp(fmt1->name, "image2"))
             continue;
         score = 0;
diff --git a/libavformat/version.h b/libavformat/version.h
index 917b9ffa5d..29dcce352b 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -32,7 +32,7 @@
 // Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium)
 // Also please add any ticket numbers that you believe might be affected here
 #define LIBAVFORMAT_VERSION_MAJOR  59
-#define LIBAVFORMAT_VERSION_MINOR  12
+#define LIBAVFORMAT_VERSION_MINOR  13
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
-- 
2.33.0

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