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feat: 新增安卓平台支持

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mofeng-git
2026-05-24 08:37:19 +00:00
parent dc6475776e
commit b31aae284d
105 changed files with 7900 additions and 473 deletions
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329
res/vcpkg/libyuv/build.rs
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@@ -19,9 +19,19 @@ fn main() {
fn generate_bindings(cpp_dir: &Path) {
let ffi_header = cpp_dir.join("yuv_ffi.h");
let mut builder = bindgen::builder().header(ffi_header.to_string_lossy().to_string());
bindgen::builder()
.header(ffi_header.to_string_lossy().to_string())
if env::var("CARGO_CFG_TARGET_OS").ok().as_deref() == Some("android") {
println!("cargo:rerun-if-env-changed=ANDROID_NDK_HOME");
println!("cargo:rerun-if-env-changed=ANDROID_NDK_ROOT");
println!("cargo:rerun-if-env-changed=NDK_HOME");
println!("cargo:rerun-if-env-changed=ANDROID_HOME");
println!("cargo:rerun-if-env-changed=ANDROID_SDK_ROOT");
println!("cargo:rerun-if-env-changed=CARGO_NDK_PLATFORM");
builder = builder.clang_args(android_clang_args());
}
builder
// YUYV conversions
.allowlist_function("YUY2ToI420")
.allowlist_function("YUY2ToNV12")
@@ -38,6 +48,7 @@ fn generate_bindings(cpp_dir: &Path) {
// NV12/NV21 conversions
.allowlist_function("NV12ToI420")
.allowlist_function("NV21ToI420")
.allowlist_function("NV21ToNV12")
.allowlist_function("NV12Copy")
.allowlist_function("SplitUVPlane")
// ARGB/BGRA conversions
@@ -49,6 +60,7 @@ fn generate_bindings(cpp_dir: &Path) {
.allowlist_function("ABGRToARGB")
// RGB24/BGR24 conversions
.allowlist_function("RGB24ToI420")
.allowlist_function("RGB24ToNV12")
.allowlist_function("RAWToI420")
.allowlist_function("RGB24ToARGB")
.allowlist_function("RAWToARGB")
@@ -62,6 +74,9 @@ fn generate_bindings(cpp_dir: &Path) {
.allowlist_function("UYVYToARGB")
.allowlist_function("ARGBToRGB24")
.allowlist_function("ARGBToRAW")
// MJPEG decoding
.allowlist_function("MJPGToNV12")
.allowlist_function("MJPGSize")
// Scaling
.allowlist_function("I420Scale")
.allowlist_function("NV12Scale")
@@ -81,6 +96,30 @@ fn generate_bindings(cpp_dir: &Path) {
}
fn link_libyuv() {
let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap_or_default();
if target_os == "android" {
if link_android_libyuv() {
return;
}
if let Some(vcpkg_installed) = vcpkg_installed_root() {
if link_vcpkg(vcpkg_installed) {
return;
}
}
panic!(
"Android libyuv not found!\n\
\n\
Build it with scripts/build-android-libyuv.sh and set:\n\
export ONE_KVM_ANDROID_LIBYUV_ROOT=/path/to/android-libyuv\n\
\n\
Expected layout:\n\
$ONE_KVM_ANDROID_LIBYUV_ROOT/<abi>/include\n\
$ONE_KVM_ANDROID_LIBYUV_ROOT/<abi>/lib/libyuv.a"
);
}
// Try vcpkg first
if let Some(vcpkg_installed) = vcpkg_installed_root() {
if link_vcpkg(vcpkg_installed) {
@@ -109,6 +148,217 @@ fn link_libyuv() {
);
}
fn link_android_libyuv() -> bool {
println!("cargo:rerun-if-env-changed=ONE_KVM_ANDROID_LIBYUV_ROOT");
println!("cargo:rerun-if-env-changed=ONE_KVM_ANDROID_LIBYUV_STATIC");
let root = match env::var("ONE_KVM_ANDROID_LIBYUV_ROOT")
.ok()
.filter(|path| !path.trim().is_empty())
{
Some(path) => PathBuf::from(path),
None => return false,
};
let target_arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_default();
let abi = android_abi(&target_arch);
let abi_root = root.join(abi);
let lib_dir = if abi_root.join("lib").exists() {
abi_root.join("lib")
} else {
root.join("lib")
};
let include_dir = if abi_root.join("include").exists() {
abi_root.join("include")
} else {
root.join("include")
};
let static_lib = lib_dir.join("libyuv.a");
let shared_lib = lib_dir.join("libyuv.so");
let use_static = env::var("ONE_KVM_ANDROID_LIBYUV_STATIC")
.or_else(|_| env::var("LIBYUV_STATIC"))
.map(|value| value != "0")
.unwrap_or(true);
if use_static && static_lib.exists() {
println!("cargo:rustc-link-search=native={}", lib_dir.display());
println!("cargo:rustc-link-lib=static=yuv");
link_android_libjpeg(&root, abi);
println!("cargo:rustc-link-lib=c++_shared");
println!(
"cargo:info=Using Android libyuv from {} (static linking)",
root.display()
);
return true;
}
if shared_lib.exists() {
println!("cargo:rustc-link-search=native={}", lib_dir.display());
println!("cargo:rustc-link-lib=yuv");
println!("cargo:rustc-link-lib=c++_shared");
println!(
"cargo:info=Using Android libyuv from {} (dynamic linking)",
root.display()
);
return true;
}
println!(
"cargo:warning=Android libyuv not found under {} for ABI {} (checked {}, {})",
root.display(),
abi,
static_lib.display(),
shared_lib.display()
);
if !include_dir.exists() {
println!(
"cargo:warning=Android libyuv include directory not found: {}",
include_dir.display()
);
}
false
}
fn link_android_libjpeg(libyuv_root: &Path, abi: &str) {
println!("cargo:rerun-if-env-changed=ONE_KVM_ANDROID_TURBOJPEG_ROOT");
let mut roots = Vec::new();
if let Ok(root) = env::var("ONE_KVM_ANDROID_TURBOJPEG_ROOT") {
if !root.trim().is_empty() {
roots.push(PathBuf::from(root));
}
}
roots.push(libyuv_root.with_file_name("android-turbojpeg"));
for root in roots {
let abi_lib_dir = root.join(abi).join("lib");
let lib_dir = if abi_lib_dir.exists() {
abi_lib_dir
} else {
root.join("lib")
};
let jpeg_lib = lib_dir.join("libjpeg.a");
if jpeg_lib.exists() {
println!("cargo:rustc-link-search=native={}", lib_dir.display());
println!("cargo:rustc-link-lib=static=jpeg");
println!(
"cargo:info=Using Android libjpeg for libyuv MJPEG from {}",
root.display()
);
return;
}
}
println!("cargo:warning=Android libjpeg.a not found; libyuv MJPEG symbols may fail to link");
}
fn android_abi(target_arch: &str) -> &'static str {
match target_arch {
"aarch64" => "arm64-v8a",
"arm" => "armeabi-v7a",
"x86" => "x86",
"x86_64" => "x86_64",
_ => "unknown",
}
}
fn android_clang_args() -> Vec<String> {
let ndk = android_ndk_home();
let target = env::var("TARGET").unwrap_or_default();
let toolchain = ndk.join("toolchains/llvm/prebuilt").join(host_tag());
let sysroot = toolchain.join("sysroot");
let clang_include = toolchain
.join("lib/clang")
.join(clang_version(&toolchain))
.join("include");
let api = env::var("CARGO_NDK_PLATFORM")
.ok()
.and_then(|value| value.parse::<u32>().ok())
.unwrap_or(21);
let clang_target = android_clang_target(&target);
vec![
format!("--target={clang_target}"),
format!("--sysroot={}", sysroot.display()),
format!("-D__ANDROID_API__={api}"),
format!("-isystem{}", clang_include.display()),
format!("-isystem{}", sysroot.join("usr/include").display()),
format!(
"-isystem{}",
sysroot.join("usr/include").join(clang_target).display()
),
]
}
fn android_clang_target(target: &str) -> &'static str {
match target {
"aarch64-linux-android" => "aarch64-linux-android",
"armv7-linux-androideabi" => "armv7a-linux-androideabi",
"i686-linux-android" => "i686-linux-android",
"x86_64-linux-android" => "x86_64-linux-android",
other => panic!("unsupported Android target for libyuv bindgen: {other}"),
}
}
fn android_ndk_home() -> PathBuf {
for key in ["ANDROID_NDK_HOME", "ANDROID_NDK_ROOT", "NDK_HOME"] {
if let Ok(value) = env::var(key) {
return PathBuf::from(value);
}
}
for key in ["ANDROID_HOME", "ANDROID_SDK_ROOT"] {
if let Ok(value) = env::var(key) {
let ndk_dir = PathBuf::from(value).join("ndk");
if let Some(newest) = newest_child_dir(&ndk_dir) {
return newest;
}
}
}
panic!(
"libyuv Android bindgen requires ANDROID_NDK_HOME, ANDROID_NDK_ROOT, NDK_HOME, \
or ANDROID_HOME/ANDROID_SDK_ROOT with an ndk directory"
);
}
fn newest_child_dir(path: &Path) -> Option<PathBuf> {
let mut entries = std::fs::read_dir(path)
.ok()?
.filter_map(|entry| entry.ok())
.map(|entry| entry.path())
.filter(|path| path.is_dir())
.collect::<Vec<_>>();
entries.sort();
entries.pop()
}
fn host_tag() -> &'static str {
if cfg!(target_os = "linux") {
"linux-x86_64"
} else if cfg!(target_os = "macos") {
"darwin-x86_64"
} else if cfg!(target_os = "windows") {
"windows-x86_64"
} else {
panic!("unsupported host OS for Android NDK");
}
}
fn clang_version(toolchain: &Path) -> String {
let clang_dir = toolchain.join("lib/clang");
let mut entries = std::fs::read_dir(&clang_dir)
.unwrap_or_else(|_| panic!("missing NDK clang directory: {}", clang_dir.display()))
.filter_map(|entry| entry.ok())
.map(|entry| entry.file_name().to_string_lossy().into_owned())
.collect::<Vec<_>>();
entries.sort();
entries
.pop()
.unwrap_or_else(|| panic!("no clang versions found under: {}", clang_dir.display()))
}
fn vcpkg_installed_root() -> Option<PathBuf> {
println!("cargo:rerun-if-env-changed=VCPKG_INSTALLED_DIR");
println!("cargo:rerun-if-env-changed=VCPKG_ROOT");
@@ -133,6 +383,10 @@ fn link_vcpkg(mut path: PathBuf) -> bool {
("linux", "x86_64") => "x64-linux",
("linux", "aarch64") => "arm64-linux",
("linux", "arm") => "arm-linux",
("android", "x86_64") => "x64-android",
("android", "x86") => "x86-android",
("android", "aarch64") => "arm64-android",
("android", "arm") => "arm-neon-android",
("windows", "x86_64") => "x64-windows-static",
("windows", "x86") => "x86-windows-static",
("macos", "x86_64") => "x64-osx",
@@ -169,14 +423,21 @@ fn link_vcpkg(mut path: PathBuf) -> bool {
if use_static && static_lib.exists() {
// Static linking (for deb packaging)
println!("cargo:rustc-link-lib=static=yuv");
#[cfg(target_os = "linux")]
println!("cargo:rustc-link-lib=stdc++");
link_libjpeg_for_static_libyuv(&[lib_path.clone()], &target_os);
if target_os == "linux" {
println!("cargo:rustc-link-lib=stdc++");
} else if target_os == "android" {
println!("cargo:rustc-link-lib=c++_shared");
}
println!("cargo:info=Using libyuv from vcpkg (static linking)");
} else {
// Dynamic linking (default for development)
println!("cargo:rustc-link-lib=yuv");
#[cfg(target_os = "linux")]
println!("cargo:rustc-link-lib=stdc++");
if target_os == "linux" {
println!("cargo:rustc-link-lib=stdc++");
} else if target_os == "android" {
println!("cargo:rustc-link-lib=c++_shared");
}
println!("cargo:info=Using libyuv from vcpkg (dynamic linking)");
}
@@ -268,6 +529,7 @@ fn link_system() -> bool {
if use_static && libyuv_static.exists() {
println!("cargo:rustc-link-search=native={}", path);
println!("cargo:rustc-link-lib=static=yuv");
link_libjpeg_for_static_libyuv(&[lib_path.to_path_buf()], "linux");
println!("cargo:rustc-link-lib=stdc++");
println!(
"cargo:info=Using system libyuv from {} (static linking)",
@@ -294,3 +556,58 @@ fn link_system() -> bool {
false
}
fn link_libjpeg_for_static_libyuv(preferred_lib_dirs: &[PathBuf], target_os: &str) {
if target_os != "linux" {
return;
}
println!("cargo:rerun-if-env-changed=ONE_KVM_LIBJPEG_DIR");
let mut lib_dirs = Vec::new();
if let Ok(path) = env::var("ONE_KVM_LIBJPEG_DIR") {
if !path.trim().is_empty() {
lib_dirs.push(PathBuf::from(path));
}
}
lib_dirs.extend(preferred_lib_dirs.iter().cloned());
lib_dirs.extend(
[
"/usr/local/lib",
"/usr/local/lib64",
"/usr/lib",
"/usr/lib64",
"/usr/lib/x86_64-linux-gnu",
"/usr/lib/aarch64-linux-gnu",
"/usr/lib/arm-linux-gnueabihf",
"/usr/aarch64-linux-gnu/lib",
"/usr/arm-linux-gnueabihf/lib",
]
.iter()
.map(PathBuf::from),
);
for lib_dir in dedupe_paths(lib_dirs) {
if lib_dir.join("libjpeg.a").exists() {
println!("cargo:rustc-link-search=native={}", lib_dir.display());
println!("cargo:rustc-link-lib=static=jpeg");
println!(
"cargo:info=Using libjpeg for static libyuv MJPEG from {}",
lib_dir.display()
);
return;
}
}
println!("cargo:warning=libjpeg.a not found; static libyuv built with MJPEG may fail to link");
}
fn dedupe_paths(paths: Vec<PathBuf>) -> Vec<PathBuf> {
let mut deduped = Vec::new();
for path in paths {
if !deduped.iter().any(|existing| existing == &path) {
deduped.push(path);
}
}
deduped
}