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use glib::object::Cast;
use glib::object::IsA;
use glib::signal::connect_raw;
use glib::signal::SignalHandlerId;
use glib::translate::*;
use glib_sys;
use gst_audio_sys;
use std::boxed::Box as Box_;
use std::mem::transmute;
use StreamVolumeFormat;
glib_wrapper! {
pub struct StreamVolume(Interface<gst_audio_sys::GstStreamVolume>);
match fn {
get_type => || gst_audio_sys::gst_stream_volume_get_type(),
}
}
impl StreamVolume {
pub fn convert_volume(from: StreamVolumeFormat, to: StreamVolumeFormat, val: f64) -> f64 {
assert_initialized_main_thread!();
unsafe {
gst_audio_sys::gst_stream_volume_convert_volume(from.to_glib(), to.to_glib(), val)
}
}
}
unsafe impl Send for StreamVolume {}
unsafe impl Sync for StreamVolume {}
pub const NONE_STREAM_VOLUME: Option<&StreamVolume> = None;
pub trait StreamVolumeExt: 'static {
fn get_mute(&self) -> bool;
fn get_volume(&self, format: StreamVolumeFormat) -> f64;
fn set_mute(&self, mute: bool);
fn set_volume(&self, format: StreamVolumeFormat, val: f64);
fn connect_property_mute_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId;
fn connect_property_volume_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId;
}
impl<O: IsA<StreamVolume>> StreamVolumeExt for O {
fn get_mute(&self) -> bool {
unsafe {
from_glib(gst_audio_sys::gst_stream_volume_get_mute(
self.as_ref().to_glib_none().0,
))
}
}
fn get_volume(&self, format: StreamVolumeFormat) -> f64 {
unsafe {
gst_audio_sys::gst_stream_volume_get_volume(
self.as_ref().to_glib_none().0,
format.to_glib(),
)
}
}
fn set_mute(&self, mute: bool) {
unsafe {
gst_audio_sys::gst_stream_volume_set_mute(
self.as_ref().to_glib_none().0,
mute.to_glib(),
);
}
}
fn set_volume(&self, format: StreamVolumeFormat, val: f64) {
unsafe {
gst_audio_sys::gst_stream_volume_set_volume(
self.as_ref().to_glib_none().0,
format.to_glib(),
val,
);
}
}
fn connect_property_mute_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_mute_trampoline<P, F: Fn(&P) + Send + Sync + 'static>(
this: *mut gst_audio_sys::GstStreamVolume,
_param_spec: glib_sys::gpointer,
f: glib_sys::gpointer,
) where
P: IsA<StreamVolume>,
{
let f: &F = &*(f as *const F);
f(&StreamVolume::from_glib_borrow(this).unsafe_cast_ref())
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::mute\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_mute_trampoline::<Self, F> as *const (),
)),
Box_::into_raw(f),
)
}
}
fn connect_property_volume_notify<F: Fn(&Self) + Send + Sync + 'static>(
&self,
f: F,
) -> SignalHandlerId {
unsafe extern "C" fn notify_volume_trampoline<P, F: Fn(&P) + Send + Sync + 'static>(
this: *mut gst_audio_sys::GstStreamVolume,
_param_spec: glib_sys::gpointer,
f: glib_sys::gpointer,
) where
P: IsA<StreamVolume>,
{
let f: &F = &*(f as *const F);
f(&StreamVolume::from_glib_borrow(this).unsafe_cast_ref())
}
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"notify::volume\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
notify_volume_trampoline::<Self, F> as *const (),
)),
Box_::into_raw(f),
)
}
}
}