From 2821db09af4b7ef9befbd95d0b1586deafaf2916 Mon Sep 17 00:00:00 2001
From: Masaiki <mydarer@gmail.com>
Date: Fri, 10 Sep 2021 12:32:19 +0800
Subject: [PATCH 1/4] fix for compile

---
 src/text.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/text.c b/src/text.c
index 58dc2c2..a5c45b3 100644
--- a/src/text.c
+++ b/src/text.c
@@ -486,7 +486,7 @@ static void VS_CC assRenderCreate(const VSMap *in, VSMap *out, void *userData,
 
     vsapi->mapConsumeFrame(vsapi->getFramePropertiesRW(frame), "_Alpha", alpha, maAppend);
 
-    d->lastframe = frame;
+    d.lastframe = frame;
 
     data = malloc(sizeof(d));
     *data = d;

From a6bb34bfe29dc21e6bd80c94f2766da12d2c6c1a Mon Sep 17 00:00:00 2001
From: Masaiki <mydarer@gmail.com>
Date: Fri, 10 Sep 2021 12:32:50 +0800
Subject: [PATCH 2/4] add cmake build system

---
 .gitignore     |  2 ++
 CMakeLists.txt | 27 +++++++++++++++++++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 CMakeLists.txt

diff --git a/.gitignore b/.gitignore
index 259148f..8487ac3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@
 *.exe
 *.out
 *.app
+
+/build
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..6fc0ba7
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,27 @@
+cmake_minimum_required(VERSION 3.12)
+project(subtext)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_C_VISIBILITY_PRESET hidden)
+
+include(FetchContent)
+FetchContent_Declare(VapourSynth
+    URL          https://github.com/vapoursynth/vapoursynth/archive/refs/tags/R55-API4-RC3.zip
+    URL_HASH MD5=2352CD4FD2DEEA88A9495279820AC2A0)
+FetchContent_MakeAvailable(VapourSynth)
+
+find_package(Iconv REQUIRED)
+find_package(FFmpeg COMPONENTS AVCODEC AVFORMAT AVUTIL REQUIRED)
+find_package(PkgConfig REQUIRED)
+PKG_CHECK_MODULES(LIBASS REQUIRED libass>=0.12.0)
+
+add_library(subtext SHARED
+    "src/common.c"
+    "src/image.cpp"
+    "src/text.c"
+    "src/toass.cpp"
+    "src/toutf8.c"
+)
+target_include_directories(subtext PRIVATE "${vapoursynth_SOURCE_DIR}/include" ${FFMPEG_INCLUDE_DIRS} ${LIBASS_INCLUDE_DIRS})
+target_link_libraries(subtext PRIVATE Iconv::Iconv ${FFMPEG_LIBRARIES} ${LIBASS_LINK_LIBRARIES})
\ No newline at end of file

From e6db8b10ef4059f4d177ffd034d754a1c31703b8 Mon Sep 17 00:00:00 2001
From: Masaiki <mydarer@gmail.com>
Date: Fri, 10 Sep 2021 17:16:52 +0800
Subject: [PATCH 3/4] use pkg-config instead of find_package

---
 CMakeLists.txt | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6fc0ba7..3814f96 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,9 +12,13 @@ FetchContent_Declare(VapourSynth
 FetchContent_MakeAvailable(VapourSynth)
 
 find_package(Iconv REQUIRED)
-find_package(FFmpeg COMPONENTS AVCODEC AVFORMAT AVUTIL REQUIRED)
 find_package(PkgConfig REQUIRED)
-PKG_CHECK_MODULES(LIBASS REQUIRED libass>=0.12.0)
+pkg_check_modules(LIBAV REQUIRED
+    libavcodec
+    libavformat
+    libavutil
+)
+pkg_check_modules(LIBASS REQUIRED libass>=0.12.0)
 
 add_library(subtext SHARED
     "src/common.c"
@@ -23,5 +27,5 @@ add_library(subtext SHARED
     "src/toass.cpp"
     "src/toutf8.c"
 )
-target_include_directories(subtext PRIVATE "${vapoursynth_SOURCE_DIR}/include" ${FFMPEG_INCLUDE_DIRS} ${LIBASS_INCLUDE_DIRS})
-target_link_libraries(subtext PRIVATE Iconv::Iconv ${FFMPEG_LIBRARIES} ${LIBASS_LINK_LIBRARIES})
\ No newline at end of file
+target_include_directories(subtext PRIVATE "${vapoursynth_SOURCE_DIR}/include" ${LIBAV_INCLUDE_DIRS} ${LIBASS_INCLUDE_DIRS})
+target_link_libraries(subtext PRIVATE Iconv::Iconv ${LIBAV_LINK_LIBRARIES} ${LIBASS_LINK_LIBRARIES})
\ No newline at end of file

From 8d1f4c9b65b931343c71fbf153a2d6add968d76f Mon Sep 17 00:00:00 2001
From: Masaiki <mydarer@gmail.com>
Date: Sat, 11 Sep 2021 11:11:38 +0800
Subject: [PATCH 4/4] update cmake minimum version for cmake policy CMP0091

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3814f96..1c6d9e4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.15) # for cmake policy CMP0091 https://cmake.org/cmake/help/latest/policy/CMP0091.html#policy:CMP0091
 project(subtext)
 
 set(CMAKE_C_STANDARD 11)