[FFmpeg-cvslog] avfilter/avfilter: Deprecate avfilter_pad_count()

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Thu Aug 12 15:21:57 2021 +0200| [e88db774d8c3905fc664446914202f66ebc1a140] | committer: Andreas Rheinhardt

avfilter/avfilter: Deprecate avfilter_pad_count()

It is unnecessary as the number of static inputs and outputs can now
be directly read via AVFilter.nb_(in|out)puts.

Reviewed-by: Nicolas George <george at nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e88db774d8c3905fc664446914202f66ebc1a140
---

 doc/APIchanges         | 1 +
 libavfilter/avfilter.c | 2 ++
 libavfilter/avfilter.h | 5 +++++
 libavfilter/version.h  | 3 +++
 4 files changed, 11 insertions(+)

diff --git a/doc/APIchanges b/doc/APIchanges
index 72c5fae125..fe7b874881 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -16,6 +16,7 @@ API changes, most recent first:
 
 2021-08-20 - xxxxxxxxxx - lavfi 8.3.100 - avfilter.H
   Add avfilter_filter_pad_count() as a replacement for avfilter_pad_count().
+  Deprecate avfilter_pad_count().
 
 2021-08-17 - xxxxxxxxxx - lavu 57.4.101 - opt.h
   av_opt_copy() now guarantees that allocated src and dst options
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index b5f5616fde..28123655d6 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -538,6 +538,7 @@ int avfilter_process_command(AVFilterContext *filter, const char *cmd, const cha
     return AVERROR(ENOSYS);
 }
 
+#if FF_API_PAD_COUNT
 int avfilter_pad_count(const AVFilterPad *pads)
 {
     const AVFilter *filter;
@@ -555,6 +556,7 @@ int avfilter_pad_count(const AVFilterPad *pads)
 
     av_assert0(!"AVFilterPad list not from a filter");
 }
+#endif
 
 unsigned avfilter_filter_pad_count(const AVFilter *filter, int is_output)
 {
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 3a0f0b7926..69ecb0186d 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -70,10 +70,15 @@ typedef struct AVFilterPad     AVFilterPad;
 typedef struct AVFilterFormats AVFilterFormats;
 typedef struct AVFilterChannelLayouts AVFilterChannelLayouts;
 
+#if FF_API_PAD_COUNT
 /**
  * Get the number of elements in an AVFilter's inputs or outputs array.
+ *
+ * @deprecated Use avfilter_filter_pad_count() instead.
  */
+attribute_deprecated
 int avfilter_pad_count(const AVFilterPad *pads);
+#endif
 
 /**
  * Get the name of an AVFilterPad.
diff --git a/libavfilter/version.h b/libavfilter/version.h
index cb4c19cf05..bcd27aa6e8 100644
--- a/libavfilter/version.h
+++ b/libavfilter/version.h
@@ -56,5 +56,8 @@
 #ifndef FF_API_BUFFERSINK_ALLOC
 #define FF_API_BUFFERSINK_ALLOC             (LIBAVFILTER_VERSION_MAJOR < 9)
 #endif
+#ifndef FF_API_PAD_COUNT
+#define FF_API_PAD_COUNT                    (LIBAVFILTER_VERSION_MAJOR < 9)
+#endif
 
 #endif /* AVFILTER_VERSION_H */