From 652e210bfb6f3b485f2a802b3e5865c283e9acb6 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Mon, 23 May 2022 21:07:30 +0200
Subject: [PATCH] cross-compile

---
 app/deps/src/build-ffmpeg.sh | 18 ++++++++++++++----
 app/deps/src/init_deps       | 14 +++++++++++++-
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/app/deps/src/build-ffmpeg.sh b/app/deps/src/build-ffmpeg.sh
index bd679d69..3f7200af 100755
--- a/app/deps/src/build-ffmpeg.sh
+++ b/app/deps/src/build-ffmpeg.sh
@@ -29,6 +29,7 @@ cd "build-$HOST"
 
 params=(
     --prefix="$INSTALL_DIR"
+    --arch="$ARCH"
     --disable-autodetect
     --disable-programs
     --disable-everything
@@ -44,10 +45,19 @@ params=(
     --enable-muxer=mp4
     --enable-muxer=matroska
 )
-if [[ "$HOST_SYSTEM" == 'linux' ]]
-then
-    params+=(--enable-libv4l2)
-fi
+
+case "$HOST_SYSTEM" in
+    linux)
+        params+=(--enable-libv4l2)
+        ;;
+    windows)
+        params+=(--target-os=mingw32)
+        params+=(--cross-prefix="$HOST-")
+        ;;
+    *)
+        fail "Unsupported platform: $HOST"
+        ;;
+esac
 
 ../configure "${params[@]}"
 make -j $NJOBS
diff --git a/app/deps/src/init_deps b/app/deps/src/init_deps
index 06baa573..65e93ca6 100644
--- a/app/deps/src/init_deps
+++ b/app/deps/src/init_deps
@@ -10,7 +10,19 @@ fail() {
 }
 
 [[ -z "$HOST" ]] && fail '$HOST not defined'
-[[ -z "$HOST_SYSTEM" ]] && fail '$HOST_SYSTEM not defined'
+
+if [[ "$HOST" == *linux* ]]
+then
+    HOST_SYSTEM='linux'
+elif [[ "$HOST" == *mingw* ]]
+then
+    HOST_SYSTEM='windows'
+else
+    fail "Host system could not be deduced from '$HOST'"
+fi
+
+ARCH="${HOST%%-*}"
+[[ -z "$ARCH" ]] && fail "Arch could not be deduced from '$HOST'"
 
 DIR=$(dirname ${BASH_SOURCE[0]})
 cd "$DIR"