gstreamer-rs/gstreamer-player/src/player.rs

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// Take a look at the license at the top of the repository in the LICENSE file.
use std::{boxed::Box as Box_, mem::transmute};
use glib::{
object::ObjectType,
signal::{connect_raw, SignalHandlerId},
translate::*,
};
use crate::Player;
impl Player {
#[doc(alias = "get_config")]
#[doc(alias = "gst_player_get_config")]
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pub fn config(&self) -> crate::PlayerConfig {
unsafe { from_glib_full(ffi::gst_player_get_config(self.to_glib_none().0)) }
}
#[doc(alias = "gst_player_set_config")]
pub fn set_config(&self, config: crate::PlayerConfig) -> Result<(), glib::error::BoolError> {
unsafe {
glib::result_from_gboolean!(
ffi::gst_player_set_config(self.to_glib_none().0, config.into_glib_ptr()),
"Failed to set config",
)
}
}
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pub fn connect_duration_changed<F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static>(
&self,
f: F,
) -> SignalHandlerId {
#[allow(clippy::cast_ptr_alignment)]
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"duration-changed\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
duration_changed_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
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pub fn connect_position_updated<F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static>(
&self,
f: F,
) -> SignalHandlerId {
#[allow(clippy::cast_ptr_alignment)]
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"position-updated\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
position_updated_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
pub fn connect_seek_done<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
&self,
f: F,
) -> SignalHandlerId {
#[allow(clippy::cast_ptr_alignment)]
unsafe {
let f: Box_<F> = Box_::new(f);
connect_raw(
self.as_ptr() as *mut _,
b"seek-done\0".as_ptr() as *const _,
Some(transmute::<_, unsafe extern "C" fn()>(
seek_done_trampoline::<F> as *const (),
)),
Box_::into_raw(f),
)
}
}
#[doc(alias = "gst_player_get_video_snapshot")]
#[doc(alias = "get_video_snapshot")]
pub fn video_snapshot(
&self,
format: crate::PlayerSnapshotFormat,
config: Option<&gst::StructureRef>,
) -> Option<gst::Sample> {
unsafe {
from_glib_full(ffi::gst_player_get_video_snapshot(
self.to_glib_none().0,
format.into_glib(),
mut_override(config.map(|c| c.as_ptr()).unwrap_or(std::ptr::null())),
))
}
}
}
impl Default for Player {
fn default() -> Self {
Self::new(
None::<crate::PlayerVideoRenderer>,
None::<crate::PlayerSignalDispatcher>,
)
}
}
unsafe extern "C" fn duration_changed_trampoline<
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F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static,
>(
this: *mut ffi::GstPlayer,
object: u64,
f: glib::ffi::gpointer,
) {
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let f: &F = &*(f as *const F);
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f(&from_glib_borrow(this), FromGlib::from_glib(object))
}
unsafe extern "C" fn position_updated_trampoline<
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F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static,
>(
this: *mut ffi::GstPlayer,
object: u64,
f: glib::ffi::gpointer,
) {
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let f: &F = &*(f as *const F);
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f(&from_glib_borrow(this), FromGlib::from_glib(object))
}
unsafe extern "C" fn seek_done_trampoline<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
this: *mut ffi::GstPlayer,
object: u64,
f: glib::ffi::gpointer,
) {
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let f: &F = &*(f as *const F);
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f(
&from_glib_borrow(this),
try_from_glib(object).expect("undefined seek position"),
)
}