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gstreamer: Export new 1.14+ plugin symbols if configured for 1.14+

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This is also needed for static linking on Android to work correctly.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/issues/154
This commit is contained in:
Sebastian Dröge 2019-05-27 01:36:30 +02:00 committed by Sebastian Dröge
parent 61b1822c95
commit faa6467d7a
4 changed files with 118 additions and 8 deletions
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1
gstreamer/Cargo.toml
View file

@ -27,6 +27,7 @@ muldiv = "0.2"
serde = { version = "1.0", optional = true }
serde_bytes = { version = "0.11", optional = true }
serde_derive = { version = "1.0", optional = true }
paste = "0.1"
[build-dependencies.rustdoc-stripper]
version = "0.1"

8
gstreamer/src/subclass/mod.rs
View file

@ -10,7 +10,15 @@
#[macro_use]
pub mod error;
#[cfg(any(feature = "v1_14"))]
#[macro_use]
#[path = "plugin_1_14.rs"]
pub mod plugin;
#[cfg(not(any(feature = "v1_14")))]
#[macro_use]
#[path = "plugin_1_12.rs"]
pub mod plugin;
pub mod bin;

12
gstreamer/src/subclass/plugin.rs → gstreamer/src/subclass/plugin_1_12.rs
View file

@ -12,16 +12,12 @@ pub const MAJOR_VERSION: i32 = 1;
pub const MINOR_VERSION: i32 = 8;
#[cfg(all(feature = "v1_10", not(feature = "v1_12")))]
pub const MINOR_VERSION: i32 = 10;
#[cfg(all(feature = "v1_12", not(feature = "v1_14")))]
#[cfg(feature = "v1_12")]
pub const MINOR_VERSION: i32 = 12;
#[cfg(all(feature = "v1_14", not(feature = "v1_16")))]
pub const MINOR_VERSION: i32 = 14;
#[cfg(all(feature = "v1_16", not(feature = "v1_18")))]
pub const MINOR_VERSION: i32 = 16;
#[macro_export]
macro_rules! gst_plugin_define(
($name:expr, $description:expr, $plugin_init:ident,
($name:ident, $description:expr, $plugin_init:ident,
$version:expr, $license:expr, $source:expr,
$package:expr, $origin:expr, $release_datetime:expr) => {
pub mod plugin_desc {
@ -36,7 +32,7 @@ macro_rules! gst_plugin_define(
pub static gst_plugin_desc: GstPluginDesc = GstPluginDesc($crate::gst_sys::GstPluginDesc {
major_version: $crate::subclass::plugin::MAJOR_VERSION,
minor_version: $crate::subclass::plugin::MINOR_VERSION,
name: concat!($name, "\0") as *const str as *const _,
name: concat!(stringify!($name), "\0") as *const str as *const _,
description: concat!($description, "\0") as *const str as *const _,
plugin_init: Some(plugin_init_trampoline),
version: concat!($version, "\0") as *const str as *const _,
@ -54,7 +50,7 @@ macro_rules! gst_plugin_define(
$crate::gst_sys::gst_plugin_register_static(
$crate::subclass::plugin::MAJOR_VERSION,
$crate::subclass::plugin::MINOR_VERSION,
concat!($name, "\0") as *const str as *const _,
concat!(stringify!($name), "\0") as *const str as *const _,
concat!($description, "\0") as *const str as _,
Some(plugin_init_trampoline),
concat!($version, "\0") as *const str as *const _,

105
gstreamer/src/subclass/plugin_1_14.rs Normal file
View file

@ -0,0 +1,105 @@
// Copyright (C) 2016-2018 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
pub const MAJOR_VERSION: i32 = 1;
#[cfg(all(feature = "v1_14", not(feature = "v1_16")))]
pub const MINOR_VERSION: i32 = 14;
#[cfg(all(feature = "v1_16", not(feature = "v1_18")))]
pub const MINOR_VERSION: i32 = 16;
#[macro_export]
macro_rules! gst_plugin_define(
($name:ident, $description:expr, $plugin_init:ident,
$version:expr, $license:expr, $source:expr,
$package:expr, $origin:expr, $release_datetime:expr) => {
pub mod plugin_desc {
use $crate::glib::translate::{from_glib_borrow, ToGlib, from_glib};
#[repr(C)]
pub struct GstPluginDesc($crate::gst_sys::GstPluginDesc);
unsafe impl Sync for GstPluginDesc {}
static GST_PLUGIN_DESC: GstPluginDesc = GstPluginDesc($crate::gst_sys::GstPluginDesc {
major_version: $crate::subclass::plugin::MAJOR_VERSION,
minor_version: $crate::subclass::plugin::MINOR_VERSION,
name: concat!(stringify!($name), "\0") as *const str as *const _,
description: concat!($description, "\0") as *const str as *const _,
plugin_init: Some(plugin_init_trampoline),
version: concat!($version, "\0") as *const str as *const _,
license: concat!($license, "\0") as *const str as *const _,
source: concat!($source, "\0") as *const str as *const _,
package: concat!($package, "\0") as *const str as *const _,
origin: concat!($origin, "\0") as *const str as *const _,
release_datetime: concat!($release_datetime, "\0") as *const str as *const _,
_gst_reserved: [0 as $crate::glib_sys::gpointer; 4],
});
pub fn plugin_register_static() -> Result<(), glib::BoolError> {
unsafe {
glib_result_from_gboolean!(
$crate::gst_sys::gst_plugin_register_static(
$crate::subclass::plugin::MAJOR_VERSION,
$crate::subclass::plugin::MINOR_VERSION,
concat!(stringify!($name), "\0") as *const str as *const _,
concat!($description, "\0") as *const str as _,
Some(plugin_init_trampoline),
concat!($version, "\0") as *const str as *const _,
concat!($license, "\0") as *const str as *const _,
concat!($source, "\0") as *const str as *const _,
concat!($package, "\0") as *const str as *const _,
concat!($origin, "\0") as *const str as *const _,
),
"Failed to register the plugin"
)
}
}
paste::item! {
#[no_mangle]
pub unsafe extern "C" fn [<gst_plugin_ $name _register>] () {
let _ = plugin_register_static();
}
#[no_mangle]
pub unsafe extern "C" fn [<gst_plugin_ $name _get_desc>] () -> *const $crate::gst_sys::GstPluginDesc {
&GST_PLUGIN_DESC.0
}
}
unsafe extern "C" fn plugin_init_trampoline(plugin: *mut $crate::gst_sys::GstPlugin) -> $crate::glib_sys::gboolean {
use std::panic::{self, AssertUnwindSafe};
let panic_result = panic::catch_unwind(AssertUnwindSafe(|| super::$plugin_init(&from_glib_borrow(plugin))));
match panic_result {
Ok(register_result) => match register_result {
Ok(_) => $crate::glib_sys::GTRUE,
Err(err) => {
let cat = $crate::DebugCategory::get("GST_PLUGIN_LOADING").unwrap();
gst_error!(cat, "Failed to register plugin: {}", err);
$crate::glib_sys::GFALSE
}
}
Err(err) => {
let cat = $crate::DebugCategory::get("GST_PLUGIN_LOADING").unwrap();
if let Some(cause) = err.downcast_ref::<&str>() {
gst_error!(cat, "Failed to initialize plugin due to panic: {}", cause);
} else if let Some(cause) = err.downcast_ref::<String>() {
gst_error!(cat, "Failed to initialize plugin due to panic: {}", cause);
} else {
gst_error!(cat, "Failed to initialize plugin due to panic");
}
$crate::glib_sys::GFALSE
}
}
}
}
pub use plugin_desc::plugin_register_static;
};
);