From 23acef021de8f216ddbb53d52647dc0b05bf457b Mon Sep 17 00:00:00 2001
From: EnumDev <enumdev@enumerated.dev>
Date: Mon, 9 Feb 2026 11:13:11 +0200
Subject: [PATCH] Rebuild with svt-av1 4.0.1

---
 pkg.info                           |  4 +-
 source-files/svt-av1-4.0-fix.patch | 81 ++++++++++++++++++++++++++++++
 source.sh                          |  7 +++
 3 files changed, 91 insertions(+), 1 deletion(-)
 create mode 100644 source-files/svt-av1-4.0-fix.patch

diff --git a/pkg.info b/pkg.info
index 8192d36..dad8f3d 100644
--- a/pkg.info
+++ b/pkg.info
@@ -1,9 +1,11 @@
 name: libheif
 description: HEIF and AVIF file format decoder and encoder
 version: 1.21.2
-revision: 1
+revision: 2
 url: https://github.com/strukturag/libheif
 license: LGPL3-or-later
+maintainers:
+  - enumdev@enumerated.dev
 architecture: any
 type: source
 depends:
diff --git a/source-files/svt-av1-4.0-fix.patch b/source-files/svt-av1-4.0-fix.patch
new file mode 100644
index 0000000..1b948d2
--- /dev/null
+++ b/source-files/svt-av1-4.0-fix.patch
@@ -0,0 +1,81 @@
+From 61923302d12f80e2a5c945a3903d1009cf67778f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Robert-Andr=C3=A9=20Mauchin?= <eclipseo@mauchin.fr>
+Date: Sat, 24 Jan 2026 17:30:35 +0100
+Subject: [PATCH 1/2] Set SVT-AV1's avif option for v4.0.0 or later
+
+---
+ libheif/plugins/encoder_svt.cc | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/libheif/plugins/encoder_svt.cc b/libheif/plugins/encoder_svt.cc
+index 03d87ca1ae..7993e3959a 100644
+--- a/libheif/plugins/encoder_svt.cc
++++ b/libheif/plugins/encoder_svt.cc
+@@ -858,9 +858,10 @@ static heif_error svt_start_sequence_encoding_intern(void* encoder_raw, const he
+ #endif
+   }
+   else {
+-    // TODO: enable when https://gitlab.com/AOMediaCodec/SVT-AV1/-/issues/2245 is resolved
+-    // svt_config.avif = true;
+-    // encoder->still_image_mode = true;
++#if SVT_AV1_CHECK_VERSION(4, 0, 0)
++    svt_config.avif = true;
++    encoder->still_image_mode = true;
++#endif
+   }
+ 
+   if (color_format == EB_YUV422 || bitdepth_y > 10) {
+
+From f9919e34868920000ddba13c55e1bf3731b1e64b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Robert-Andr=C3=A9=20Mauchin?= <eclipseo@mauchin.fr>
+Date: Sat, 24 Jan 2026 18:18:46 +0100
+Subject: [PATCH 2/2] Use PredStructure values from definitions.h instead of
+ removed SvtAv1PredStructure for v4.0.0 or later
+
+---
+ libheif/plugins/encoder_svt.cc | 17 +++++++++++++++--
+ 1 file changed, 15 insertions(+), 2 deletions(-)
+
+diff --git a/libheif/plugins/encoder_svt.cc b/libheif/plugins/encoder_svt.cc
+index 7993e3959a..393748e997 100644
+--- a/libheif/plugins/encoder_svt.cc
++++ b/libheif/plugins/encoder_svt.cc
+@@ -838,8 +838,20 @@ static heif_error svt_start_sequence_encoding_intern(void* encoder_raw, const he
+     // svt_config.force_key_frames = true; TODO: this does not seem to work (see all [1])
+ 
+ #if 1
++#if SVT_AV1_CHECK_VERSION(4, 0, 0)
++    switch (options->gop_structure) {
++      case heif_sequence_gop_structure_intra_only:
++        //svt_config.pred_structure = 1; // LOW_DELAY
++        break;
++      case heif_sequence_gop_structure_lowdelay:
++        //svt_config.pred_structure = 1; // LOW_DELAY
++        break;
++      case heif_sequence_gop_structure_unrestricted:
++        svt_config.pred_structure = 2; // RANDOM_ACCESS
++        break;
++    }
++#else
+     // TODO: setting pref_structure to SVT_AV1_PRED_LOW_DELAY_B hangs the encoder
+-
+     switch (options->gop_structure) {
+       case heif_sequence_gop_structure_intra_only:
+         //svt_config.pred_structure = SvtAv1PredStructure::SVT_AV1_PRED_LOW_DELAY_B;
+@@ -851,6 +863,7 @@ static heif_error svt_start_sequence_encoding_intern(void* encoder_raw, const he
+         svt_config.pred_structure = SvtAv1PredStructure::SVT_AV1_PRED_RANDOM_ACCESS;
+         break;
+     }
++#endif
+ 
+     if (options->keyframe_distance_max) {
+       svt_config.intra_period_length = options->keyframe_distance_max; // TODO -1 ?
+@@ -921,7 +934,7 @@ static heif_error read_encoder_output_packets(void* encoder_raw, bool done_sendi
+ 
+         /* TODO: this is a hack
+          * When using
+-         *           svt_config.pred_structure = SvtAv1PredStructure::SVT_AV1_PRED_LOW_DELAY_B;
++         *           svt_config.pred_structure = 1; // LOW_DELAY
+          * svt_av1_enc_get_packet() hangs on the second call. As a workaround, we can leave the
+          * loop when we got the image:
+          */
diff --git a/source.sh b/source.sh
index 91ef196..8a95d40 100644
--- a/source.sh
+++ b/source.sh
@@ -2,6 +2,13 @@
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT
 
+# The prepare function is executed in the root of the temp directory
+# This function is used for putting downloaded files to the correct location or applying patches
+prepare() {
+  cd "$BPM_SOURCE"
+  patch -Np1 -i "$BPM_WORKDIR"/svt-av1-4.0-fix.patch
+}
+
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {