From 7b0064107e585776040dd5b16f4f8ab8ca26061e Mon Sep 17 00:00:00 2001
From: Jehan <jehan@girinstud.io>
Date: Mon, 23 Jan 2023 19:01:38 +0100
Subject: [PATCH] Issue #9080: Checking for available libheif codecs at
 compile-time.

From libheif >= 1.14.0, the pkg-config variable will become bogus and always
return 'yes' so we now need to check for codec avaibility at compile time the
same way we look for these at runtime.

It may seem irrelevant to do these checks since these codecs can be added
anytime later, but it's still very good information for packagers to immediately
see that we have runtime package missing.
---
 meson.build | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 85 insertions(+), 4 deletions(-)

diff --git a/meson.build b/meson.build
index d125c180ed..493599ecf3 100644
--- a/meson.build
+++ b/meson.build
@@ -752,8 +752,49 @@ have_heif = libheif.found()
 libheif_warning=''
 if have_heif
   have_heif = true
-  can_import_heic = (libheif.get_variable(pkgconfig: 'builtin_h265_decoder') == 'yes')
-  can_export_heic = (libheif.get_variable(pkgconfig: 'builtin_h265_encoder') == 'yes')
+
+  can_import_heic = cc.run('''
+  #include <libheif/heif.h>
+  int main() {
+    int success;
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_init (NULL);
+    #endif
+    success = heif_have_decoder_for_format (heif_compression_HEVC);
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_deinit ();
+    #endif
+
+    if (success)
+      return 0;
+    else
+      return 1;
+  }
+  ''',
+  dependencies: [ libheif ],
+  name: 'import HEIC').returncode() == 0
+
+  can_export_heic = cc.run('''
+  #include <libheif/heif.h>
+  int main() {
+    int success;
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_init (NULL);
+    #endif
+    success = heif_have_encoder_for_format (heif_compression_HEVC);
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_deinit ();
+    #endif
+
+    if (success)
+      return 0;
+    else
+      return 1;
+  }
+  ''',
+  dependencies: [ libheif ],
+  name: 'export HEIC').returncode() == 0
+
   if can_import_heic
     MIMEtypes += [
       'image/heif',
@@ -761,8 +802,48 @@ if have_heif
     ]
   endif
 
-  can_import_avif = (libheif.get_variable(pkgconfig: 'builtin_avif_decoder') == 'yes')
-  can_export_avif = (libheif.get_variable(pkgconfig: 'builtin_avif_encoder') == 'yes')
+  can_import_avif = cc.run('''
+  #include <libheif/heif.h>
+  int main() {
+    int success;
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_init (NULL);
+    #endif
+    success = heif_have_decoder_for_format (heif_compression_AV1);
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_deinit ();
+    #endif
+
+    if (success)
+      return 0;
+    else
+      return 1;
+  }
+  ''',
+  dependencies: [ libheif ],
+  name: 'import AVIF').returncode() == 0
+
+  can_export_avif = cc.run('''
+  #include <libheif/heif.h>
+  int main() {
+    int success;
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_init (NULL);
+    #endif
+    success = heif_have_encoder_for_format (heif_compression_AV1);
+    #if LIBHEIF_HAVE_VERSION(1,13,0)
+    heif_deinit ();
+    #endif
+
+    if (success)
+      return 0;
+    else
+      return 1;
+  }
+  ''',
+  dependencies: [ libheif ],
+  name: 'export AVIF').returncode() == 0
+
   if can_import_avif
     MIMEtypes += [
       'image/avif'