forked from mirrors/gstreamer-rs
129 lines
4.2 KiB
Rust
129 lines
4.2 KiB
Rust
// Take a look at the license at the top of the repository in the LICENSE file.
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use crate::Player;
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use crate::PlayerSignalDispatcher;
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use crate::PlayerVideoRenderer;
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use glib::object::ObjectType;
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use glib::signal::connect_raw;
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use glib::signal::SignalHandlerId;
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use glib::translate::*;
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use std::boxed::Box as Box_;
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use std::mem::transmute;
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impl Player {
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pub fn new(
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video_renderer: Option<&PlayerVideoRenderer>,
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signal_dispatcher: Option<&PlayerSignalDispatcher>,
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) -> Player {
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assert_initialized_main_thread!();
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let video_renderer = video_renderer.to_glib_full();
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let signal_dispatcher = signal_dispatcher.to_glib_full();
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let (major, minor, _, _) = gst::version();
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if (major, minor) > (1, 12) {
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unsafe { from_glib_full(ffi::gst_player_new(video_renderer, signal_dispatcher)) }
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} else {
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// Workaround for bad floating reference handling in 1.12. This issue was fixed for 1.13 in
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// https://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/gst-libs/gst/player/gstplayer.c?id=634cd87c76f58b5e1383715bafd5614db825c7d1
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unsafe { from_glib_none(ffi::gst_player_new(video_renderer, signal_dispatcher)) }
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}
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}
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pub fn config(&self) -> crate::PlayerConfig {
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unsafe { from_glib_full(ffi::gst_player_get_config(self.to_glib_none().0)) }
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}
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pub fn set_config(&self, config: crate::PlayerConfig) -> Result<(), glib::error::BoolError> {
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unsafe {
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glib::result_from_gboolean!(
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ffi::gst_player_set_config(self.to_glib_none().0, config.into_ptr()),
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"Failed to set config",
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)
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}
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}
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pub fn connect_duration_changed<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
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&self,
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f: F,
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) -> SignalHandlerId {
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#[allow(clippy::cast_ptr_alignment)]
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unsafe {
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let f: Box_<F> = Box_::new(f);
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connect_raw(
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self.as_ptr() as *mut _,
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b"duration-changed\0".as_ptr() as *const _,
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Some(transmute::<_, unsafe extern "C" fn()>(
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duration_changed_trampoline::<F> as *const (),
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)),
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Box_::into_raw(f),
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)
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}
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}
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pub fn connect_position_updated<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
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&self,
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f: F,
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) -> SignalHandlerId {
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#[allow(clippy::cast_ptr_alignment)]
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unsafe {
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let f: Box_<F> = Box_::new(f);
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connect_raw(
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self.as_ptr() as *mut _,
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b"position-updated\0".as_ptr() as *const _,
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Some(transmute::<_, unsafe extern "C" fn()>(
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position_updated_trampoline::<F> as *const (),
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)),
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Box_::into_raw(f),
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)
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}
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}
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pub fn connect_seek_done<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
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&self,
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f: F,
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) -> SignalHandlerId {
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#[allow(clippy::cast_ptr_alignment)]
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unsafe {
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let f: Box_<F> = Box_::new(f);
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connect_raw(
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self.as_ptr() as *mut _,
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b"seek-done\0".as_ptr() as *const _,
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Some(transmute::<_, unsafe extern "C" fn()>(
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seek_done_trampoline::<F> as *const (),
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)),
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Box_::into_raw(f),
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)
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}
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}
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}
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unsafe extern "C" fn duration_changed_trampoline<
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F: Fn(&Player, gst::ClockTime) + Send + 'static,
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>(
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this: *mut ffi::GstPlayer,
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object: u64,
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f: glib::ffi::gpointer,
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) {
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let f: &F = &*(f as *const F);
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f(&from_glib_borrow(this), gst::ClockTime(Some(object)))
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}
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unsafe extern "C" fn position_updated_trampoline<
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F: Fn(&Player, gst::ClockTime) + Send + 'static,
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>(
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this: *mut ffi::GstPlayer,
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object: u64,
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f: glib::ffi::gpointer,
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) {
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let f: &F = &*(f as *const F);
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f(&from_glib_borrow(this), gst::ClockTime(Some(object)))
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}
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unsafe extern "C" fn seek_done_trampoline<F: Fn(&Player, gst::ClockTime) + Send + 'static>(
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this: *mut ffi::GstPlayer,
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object: u64,
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f: glib::ffi::gpointer,
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) {
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let f: &F = &*(f as *const F);
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f(&from_glib_borrow(this), gst::ClockTime(Some(object)))
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}
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