gstreamer_player/
player.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use std::{boxed::Box as Box_, mem::transmute};
4
5use glib::{
6    object::ObjectType,
7    signal::{connect_raw, SignalHandlerId},
8    translate::*,
9};
10
11use crate::{ffi, Player};
12
13impl Player {
14    #[doc(alias = "get_config")]
15    #[doc(alias = "gst_player_get_config")]
16    pub fn config(&self) -> crate::PlayerConfig {
17        unsafe { from_glib_full(ffi::gst_player_get_config(self.to_glib_none().0)) }
18    }
19
20    #[doc(alias = "gst_player_set_config")]
21    pub fn set_config(&self, config: crate::PlayerConfig) -> Result<(), glib::error::BoolError> {
22        unsafe {
23            glib::result_from_gboolean!(
24                ffi::gst_player_set_config(self.to_glib_none().0, config.into_glib_ptr()),
25                "Failed to set config",
26            )
27        }
28    }
29
30    pub fn connect_duration_changed<F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static>(
31        &self,
32        f: F,
33    ) -> SignalHandlerId {
34        #[allow(clippy::cast_ptr_alignment)]
35        unsafe {
36            let f: Box_<F> = Box_::new(f);
37            connect_raw(
38                self.as_ptr() as *mut _,
39                b"duration-changed\0".as_ptr() as *const _,
40                Some(transmute::<*const (), unsafe extern "C" fn()>(
41                    duration_changed_trampoline::<F> as *const (),
42                )),
43                Box_::into_raw(f),
44            )
45        }
46    }
47
48    pub fn connect_position_updated<F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static>(
49        &self,
50        f: F,
51    ) -> SignalHandlerId {
52        #[allow(clippy::cast_ptr_alignment)]
53        unsafe {
54            let f: Box_<F> = Box_::new(f);
55            connect_raw(
56                self.as_ptr() as *mut _,
57                b"position-updated\0".as_ptr() as *const _,
58                Some(transmute::<*const (), unsafe extern "C" fn()>(
59                    position_updated_trampoline::<F> as *const (),
60                )),
61                Box_::into_raw(f),
62            )
63        }
64    }
65
66    pub fn connect_seek_done<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
67        &self,
68        f: F,
69    ) -> SignalHandlerId {
70        #[allow(clippy::cast_ptr_alignment)]
71        unsafe {
72            let f: Box_<F> = Box_::new(f);
73            connect_raw(
74                self.as_ptr() as *mut _,
75                b"seek-done\0".as_ptr() as *const _,
76                Some(transmute::<*const (), unsafe extern "C" fn()>(
77                    seek_done_trampoline::<F> as *const (),
78                )),
79                Box_::into_raw(f),
80            )
81        }
82    }
83
84    #[doc(alias = "gst_player_get_video_snapshot")]
85    #[doc(alias = "get_video_snapshot")]
86    pub fn video_snapshot(
87        &self,
88        format: crate::PlayerSnapshotFormat,
89        config: Option<&gst::StructureRef>,
90    ) -> Option<gst::Sample> {
91        unsafe {
92            from_glib_full(ffi::gst_player_get_video_snapshot(
93                self.to_glib_none().0,
94                format.into_glib(),
95                mut_override(config.map(|c| c.as_ptr()).unwrap_or(std::ptr::null())),
96            ))
97        }
98    }
99}
100
101impl Default for Player {
102    fn default() -> Self {
103        Self::new(
104            None::<crate::PlayerVideoRenderer>,
105            None::<crate::PlayerSignalDispatcher>,
106        )
107    }
108}
109
110unsafe extern "C" fn duration_changed_trampoline<
111    F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static,
112>(
113    this: *mut ffi::GstPlayer,
114    object: u64,
115    f: glib::ffi::gpointer,
116) {
117    let f: &F = &*(f as *const F);
118    f(&from_glib_borrow(this), FromGlib::from_glib(object))
119}
120
121unsafe extern "C" fn position_updated_trampoline<
122    F: Fn(&Player, Option<gst::ClockTime>) + Send + 'static,
123>(
124    this: *mut ffi::GstPlayer,
125    object: u64,
126    f: glib::ffi::gpointer,
127) {
128    let f: &F = &*(f as *const F);
129    f(&from_glib_borrow(this), FromGlib::from_glib(object))
130}
131
132unsafe extern "C" fn seek_done_trampoline<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
133    this: *mut ffi::GstPlayer,
134    object: u64,
135    f: glib::ffi::gpointer,
136) {
137    let f: &F = &*(f as *const F);
138    f(
139        &from_glib_borrow(this),
140        try_from_glib(object).expect("undefined seek position"),
141    )
142}
gstreamer_player/player.rs

gstreamer_player/
player.rs
