[FFmpeg-devel] [PATCH v2] avutil/hwcontext_videotoolbox: Check CVBufferCopyAttachments during configure

[gnattu]

The __builtin_available function does not do compile time check
for the availablity of the CVBufferCopyAttachments function
which will fail the build. Check the availability during configure.

Signed-off-by: Gnattu OC <gnattuoc at me.com>
---
 configure                          |  2 ++
 libavutil/hwcontext_videotoolbox.c | 12 +++++-------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/configure b/configure
index f6f5c29fea..54171dd4e5 100755
--- a/configure
+++ b/configure
@@ -2366,6 +2366,7 @@ SYSTEM_FUNCS="
     clock_gettime
     closesocket
     CommandLineToArgvW
+    CVBufferCopyAttachments
     fcntl
     getaddrinfo
     getauxval
@@ -6684,6 +6685,7 @@ enabled videotoolbox && {
     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 "-framework CoreVideo"
     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_ITU_R_2020 "-framework CoreVideo"
     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_428_1 "-framework CoreVideo"
+    check_func_headers CoreVideo/CVBuffer.h CVBufferCopyAttachments "-framework CoreVideo"
 }
 
 enabled metal && test_cmd $metalcc -v || disable metal
diff --git a/libavutil/hwcontext_videotoolbox.c b/libavutil/hwcontext_videotoolbox.c
index ab7556936d..c55d478004 100644
--- a/libavutil/hwcontext_videotoolbox.c
+++ b/libavutil/hwcontext_videotoolbox.c
@@ -592,15 +592,13 @@ static int vt_pixbuf_set_colorspace(void *log_ctx,
     (TARGET_OS_IOS && __IPHONE_OS_VERSION_MAX_ALLOWED >= 100000)
     if (__builtin_available(macOS 10.8, iOS 10, *)) {
         CFDictionaryRef attachments = NULL;
+#if HAVE_CVBUFFERCOPYATTACHMENTS
         if (__builtin_available(macOS 12.0, iOS 15.0, *))
             attachments = CVBufferCopyAttachments(pixbuf, kCVAttachmentMode_ShouldPropagate);
-#if (TARGET_OS_OSX && __MAC_OS_X_VERSION_MIN_REQUIRED <= 120000) || \
-    (TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED <= 150000)
-        else {
-            CFDictionaryRef tmp = CVBufferGetAttachments(pixbuf, kCVAttachmentMode_ShouldPropagate);
-            if (tmp)
-                attachments = CFDictionaryCreateCopy(NULL, tmp);
-        }
+#else
+        CFDictionaryRef tmp = CVBufferGetAttachments(pixbuf, kCVAttachmentMode_ShouldPropagate);
+        if (tmp)
+            attachments = CFDictionaryCreateCopy(NULL, tmp);
 #endif
         if (attachments) {
             colorspace = CVImageBufferCreateColorSpaceFromAttachments(attachments);
-- 
2.39.3 (Apple Git-146)