forked from mirrors/gstreamer-rs
128 lines
4.2 KiB
Rust
128 lines
4.2 KiB
Rust
// Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use ffi;
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use glib;
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use glib::signal::connect;
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use glib::signal::SignalHandlerId;
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use glib::translate::*;
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use glib_ffi;
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use gst;
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use std::boxed::Box as Box_;
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use std::mem::transmute;
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use Player;
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use PlayerSignalDispatcher;
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use PlayerVideoRenderer;
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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 get_config(&self) -> ::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: ::PlayerConfig) -> Result<(), glib::error::BoolError> {
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unsafe {
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glib::error::BoolError::from_glib(
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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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unsafe {
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let f: Box_<Box_<Fn(&Player, gst::ClockTime) + Send + 'static>> =
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Box_::new(Box_::new(f));
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connect(
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self.to_glib_none().0,
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"duration-changed",
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transmute(duration_changed_trampoline as usize),
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Box_::into_raw(f) as *mut _,
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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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unsafe {
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let f: Box_<Box_<Fn(&Player, gst::ClockTime) + Send + 'static>> =
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Box_::new(Box_::new(f));
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connect(
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self.to_glib_none().0,
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"position-updated",
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transmute(position_updated_trampoline as usize),
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Box_::into_raw(f) as *mut _,
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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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unsafe {
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let f: Box_<Box_<Fn(&Player, gst::ClockTime) + Send + 'static>> =
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Box_::new(Box_::new(f));
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connect(
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self.to_glib_none().0,
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"seek-done",
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transmute(seek_done_trampoline as usize),
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Box_::into_raw(f) as *mut _,
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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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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: &&(Fn(&Player, gst::ClockTime) + Send + 'static) = transmute(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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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: &&(Fn(&Player, gst::ClockTime) + Send + Sync + 'static) = transmute(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(
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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: &&(Fn(&Player, gst::ClockTime) + Send + 'static) = transmute(f);
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f(&from_glib_borrow(this), gst::ClockTime(Some(object)))
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}
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