forked from mirrors/gstreamer-rs
1416 lines
41 KiB
Rust
1416 lines
41 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 Element;
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use ElementClass;
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use once_cell::sync::Lazy;
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use glib;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use glib::object::Cast;
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use glib::object::IsA;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use glib::translate::FromGlibPtrBorrow;
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use glib::translate::{
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from_glib, from_glib_full, from_glib_none, FromGlib, FromGlibPtrContainer, ToGlib, ToGlibPtr,
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};
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use miniobject::MiniObject;
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use ClockTime;
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use ElementFlags;
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use Event;
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use Format;
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use FormattedValue;
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use GenericFormattedValue;
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use Pad;
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use PadTemplate;
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use Plugin;
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use QueryRef;
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use Rank;
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use SpecificFormattedValue;
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use State;
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use StateChange;
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use StateChangeError;
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use StateChangeReturn;
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use StateChangeSuccess;
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use std::ffi::CStr;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use std::future::Future;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use std::marker::Unpin;
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use std::mem;
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use std::num::NonZeroU64;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use std::pin::Pin;
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use libc;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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use glib_sys;
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use gobject_sys;
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use gst_sys;
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impl Element {
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pub fn link_many<E: IsA<Element>>(elements: &[&E]) -> Result<(), glib::BoolError> {
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skip_assert_initialized!();
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for e in elements.windows(2) {
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unsafe {
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glib_result_from_gboolean!(
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gst_sys::gst_element_link(
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e[0].as_ref().to_glib_none().0,
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e[1].as_ref().to_glib_none().0,
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),
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"Failed to link elements"
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)?;
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}
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}
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Ok(())
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}
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pub fn unlink_many<E: IsA<Element>>(elements: &[&E]) {
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skip_assert_initialized!();
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for e in elements.windows(2) {
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unsafe {
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gst_sys::gst_element_unlink(
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e[0].as_ref().to_glib_none().0,
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e[1].as_ref().to_glib_none().0,
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);
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}
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}
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}
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pub fn register(
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plugin: Option<&Plugin>,
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name: &str,
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rank: Rank,
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type_: glib::types::Type,
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) -> Result<(), glib::error::BoolError> {
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assert_initialized_main_thread!();
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unsafe {
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glib_result_from_gboolean!(
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gst_sys::gst_element_register(
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plugin.to_glib_none().0,
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name.to_glib_none().0,
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rank.to_glib() as u32,
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type_.to_glib()
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),
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"Failed to register element factory"
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)
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}
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}
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}
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#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
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pub enum ElementMessageType {
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Error,
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Warning,
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Info,
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}
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#[derive(Debug, PartialEq, Eq)]
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pub struct NotifyWatchId(NonZeroU64);
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impl ToGlib for NotifyWatchId {
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type GlibType = libc::c_ulong;
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fn to_glib(&self) -> libc::c_ulong {
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self.0.get() as libc::c_ulong
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}
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}
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impl FromGlib<libc::c_ulong> for NotifyWatchId {
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fn from_glib(val: libc::c_ulong) -> NotifyWatchId {
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skip_assert_initialized!();
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assert_ne!(val, 0);
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NotifyWatchId(unsafe { NonZeroU64::new_unchecked(val as u64) })
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}
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}
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pub trait ElementExtManual: 'static {
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fn get_element_class(&self) -> &ElementClass;
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fn change_state(&self, transition: StateChange)
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-> Result<StateChangeSuccess, StateChangeError>;
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fn continue_state(
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&self,
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ret: StateChangeReturn,
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) -> Result<StateChangeSuccess, StateChangeError>;
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fn get_state(
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&self,
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timeout: ClockTime,
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) -> (Result<StateChangeSuccess, StateChangeError>, State, State);
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fn set_state(&self, state: State) -> Result<StateChangeSuccess, StateChangeError>;
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fn query(&self, query: &mut QueryRef) -> bool;
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fn send_event(&self, event: Event) -> bool;
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fn get_metadata<'a>(&self, key: &str) -> Option<&'a str>;
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fn get_pad_template(&self, name: &str) -> Option<PadTemplate>;
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fn get_pad_template_list(&self) -> Vec<PadTemplate>;
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#[allow(clippy::too_many_arguments)]
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fn message_full<T: ::MessageErrorDomain>(
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&self,
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type_: ElementMessageType,
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code: T,
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message: Option<&str>,
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debug: Option<&str>,
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file: &str,
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function: &str,
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line: u32,
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);
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fn set_element_flags(&self, flags: ElementFlags);
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fn unset_element_flags(&self, flags: ElementFlags);
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fn get_element_flags(&self) -> ElementFlags;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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#[allow(clippy::too_many_arguments)]
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fn message_full_with_details<T: ::MessageErrorDomain>(
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&self,
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type_: ElementMessageType,
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code: T,
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message: Option<&str>,
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debug: Option<&str>,
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file: &str,
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function: &str,
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line: u32,
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structure: ::Structure,
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);
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fn post_error_message(&self, msg: &::ErrorMessage);
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fn iterate_pads(&self) -> ::Iterator<Pad>;
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fn iterate_sink_pads(&self) -> ::Iterator<Pad>;
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fn iterate_src_pads(&self) -> ::Iterator<Pad>;
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fn get_pads(&self) -> Vec<Pad>;
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fn get_sink_pads(&self) -> Vec<Pad>;
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fn get_src_pads(&self) -> Vec<Pad>;
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fn num_pads(&self) -> u16;
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fn num_sink_pads(&self) -> u16;
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fn num_src_pads(&self) -> u16;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn add_property_deep_notify_watch(
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&self,
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property_name: Option<&str>,
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include_value: bool,
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) -> NotifyWatchId;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn add_property_notify_watch(
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&self,
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property_name: Option<&str>,
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include_value: bool,
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) -> NotifyWatchId;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn remove_property_notify_watch(&self, watch_id: NotifyWatchId);
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fn query_convert<V: Into<GenericFormattedValue>, U: SpecificFormattedValue>(
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&self,
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src_val: V,
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) -> Option<U>;
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fn query_convert_generic<V: Into<GenericFormattedValue>>(
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&self,
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src_val: V,
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dest_format: Format,
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) -> Option<GenericFormattedValue>;
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fn query_duration<T: SpecificFormattedValue>(&self) -> Option<T>;
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fn query_duration_generic(&self, format: Format) -> Option<GenericFormattedValue>;
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fn query_position<T: SpecificFormattedValue>(&self) -> Option<T>;
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fn query_position_generic(&self, format: Format) -> Option<GenericFormattedValue>;
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fn seek<V: Into<GenericFormattedValue>>(
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&self,
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rate: f64,
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flags: ::SeekFlags,
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start_type: ::SeekType,
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start: V,
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stop_type: ::SeekType,
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stop: V,
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) -> Result<(), glib::error::BoolError>;
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fn seek_simple<V: Into<GenericFormattedValue>>(
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&self,
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seek_flags: ::SeekFlags,
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seek_pos: V,
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) -> Result<(), glib::error::BoolError>;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn call_async<F>(&self, func: F)
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where
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F: FnOnce(&Self) + Send + 'static;
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn call_async_future<F, T>(
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&self,
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func: F,
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) -> Pin<Box<dyn Future<Output = T> + Unpin + Send + 'static>>
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where
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F: FnOnce(&Self) -> T + Send + 'static,
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T: Send + 'static;
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}
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impl<O: IsA<Element>> ElementExtManual for O {
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fn get_element_class(&self) -> &ElementClass {
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unsafe {
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let klass = (*(self.as_ptr() as *mut gobject_sys::GTypeInstance)).g_class
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as *const ElementClass;
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&*klass
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}
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}
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fn change_state(
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&self,
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transition: StateChange,
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) -> Result<StateChangeSuccess, StateChangeError> {
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let ret: StateChangeReturn = unsafe {
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from_glib(gst_sys::gst_element_change_state(
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self.as_ref().to_glib_none().0,
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transition.to_glib(),
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))
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};
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ret.into_result()
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}
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fn continue_state(
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&self,
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ret: StateChangeReturn,
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) -> Result<StateChangeSuccess, StateChangeError> {
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let ret: StateChangeReturn = unsafe {
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from_glib(gst_sys::gst_element_continue_state(
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self.as_ref().to_glib_none().0,
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ret.to_glib(),
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))
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};
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ret.into_result()
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}
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fn get_state(
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&self,
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timeout: ClockTime,
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) -> (Result<StateChangeSuccess, StateChangeError>, State, State) {
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unsafe {
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let mut state = mem::MaybeUninit::uninit();
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let mut pending = mem::MaybeUninit::uninit();
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let ret: StateChangeReturn = from_glib(gst_sys::gst_element_get_state(
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self.as_ref().to_glib_none().0,
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state.as_mut_ptr(),
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pending.as_mut_ptr(),
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timeout.to_glib(),
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));
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(
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ret.into_result(),
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from_glib(state.assume_init()),
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from_glib(pending.assume_init()),
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)
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}
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}
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fn set_state(&self, state: State) -> Result<StateChangeSuccess, StateChangeError> {
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let ret: StateChangeReturn = unsafe {
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from_glib(gst_sys::gst_element_set_state(
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self.as_ref().to_glib_none().0,
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state.to_glib(),
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))
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};
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ret.into_result()
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}
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fn query(&self, query: &mut QueryRef) -> bool {
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unsafe {
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from_glib(gst_sys::gst_element_query(
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self.as_ref().to_glib_none().0,
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query.as_mut_ptr(),
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))
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}
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}
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fn send_event(&self, event: Event) -> bool {
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unsafe {
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from_glib(gst_sys::gst_element_send_event(
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self.as_ref().to_glib_none().0,
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event.into_ptr(),
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))
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}
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}
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fn get_metadata<'a>(&self, key: &str) -> Option<&'a str> {
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self.get_element_class().get_metadata(key)
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}
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fn get_pad_template(&self, name: &str) -> Option<PadTemplate> {
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self.get_element_class().get_pad_template(name)
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}
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fn get_pad_template_list(&self) -> Vec<PadTemplate> {
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self.get_element_class().get_pad_template_list()
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}
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fn set_element_flags(&self, flags: ElementFlags) {
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unsafe {
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let ptr: *mut gst_sys::GstObject = self.as_ptr() as *mut _;
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let _guard = ::utils::MutexGuard::lock(&(*ptr).lock);
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(*ptr).flags |= flags.to_glib();
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}
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}
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fn unset_element_flags(&self, flags: ElementFlags) {
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unsafe {
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let ptr: *mut gst_sys::GstObject = self.as_ptr() as *mut _;
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let _guard = ::utils::MutexGuard::lock(&(*ptr).lock);
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(*ptr).flags &= !flags.to_glib();
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}
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}
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fn get_element_flags(&self) -> ElementFlags {
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unsafe {
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let ptr: *mut gst_sys::GstObject = self.as_ptr() as *mut _;
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let _guard = ::utils::MutexGuard::lock(&(*ptr).lock);
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from_glib((*ptr).flags)
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}
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}
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fn message_full<T: ::MessageErrorDomain>(
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&self,
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type_: ElementMessageType,
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code: T,
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message: Option<&str>,
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debug: Option<&str>,
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file: &str,
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function: &str,
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line: u32,
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) {
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unsafe {
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let type_ = match type_ {
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ElementMessageType::Error => gst_sys::GST_MESSAGE_ERROR,
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ElementMessageType::Warning => gst_sys::GST_MESSAGE_WARNING,
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ElementMessageType::Info => gst_sys::GST_MESSAGE_INFO,
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};
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gst_sys::gst_element_message_full(
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self.as_ref().to_glib_none().0,
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type_,
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T::domain().to_glib(),
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code.code(),
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message.to_glib_full(),
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debug.to_glib_full(),
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file.to_glib_none().0,
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function.to_glib_none().0,
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line as i32,
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);
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}
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}
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|
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#[cfg(any(feature = "v1_10", feature = "dox"))]
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fn message_full_with_details<T: ::MessageErrorDomain>(
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&self,
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type_: ElementMessageType,
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code: T,
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message: Option<&str>,
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debug: Option<&str>,
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file: &str,
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function: &str,
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line: u32,
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structure: ::Structure,
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) {
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unsafe {
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let type_ = match type_ {
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ElementMessageType::Error => gst_sys::GST_MESSAGE_ERROR,
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ElementMessageType::Warning => gst_sys::GST_MESSAGE_WARNING,
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ElementMessageType::Info => gst_sys::GST_MESSAGE_INFO,
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};
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gst_sys::gst_element_message_full_with_details(
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self.as_ref().to_glib_none().0,
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type_,
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T::domain().to_glib(),
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code.code(),
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message.to_glib_full(),
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debug.to_glib_full(),
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file.to_glib_none().0,
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|
function.to_glib_none().0,
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line as i32,
|
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structure.into_ptr(),
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);
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}
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}
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|
|
|
fn post_error_message(&self, msg: &::ErrorMessage) {
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let ::ErrorMessage {
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error_domain,
|
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error_code,
|
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ref message,
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ref debug,
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filename,
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function,
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line,
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} = *msg;
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unsafe {
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gst_sys::gst_element_message_full(
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self.as_ref().to_glib_none().0,
|
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gst_sys::GST_MESSAGE_ERROR,
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|
error_domain.to_glib(),
|
|
error_code,
|
|
message.to_glib_full(),
|
|
debug.to_glib_full(),
|
|
filename.to_glib_none().0,
|
|
function.to_glib_none().0,
|
|
line as i32,
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|
);
|
|
}
|
|
}
|
|
|
|
fn iterate_pads(&self) -> ::Iterator<Pad> {
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unsafe {
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from_glib_full(gst_sys::gst_element_iterate_pads(
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self.as_ref().to_glib_none().0,
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))
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|
}
|
|
}
|
|
|
|
fn iterate_sink_pads(&self) -> ::Iterator<Pad> {
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unsafe {
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from_glib_full(gst_sys::gst_element_iterate_sink_pads(
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self.as_ref().to_glib_none().0,
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))
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}
|
|
}
|
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|
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fn iterate_src_pads(&self) -> ::Iterator<Pad> {
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unsafe {
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from_glib_full(gst_sys::gst_element_iterate_src_pads(
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self.as_ref().to_glib_none().0,
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))
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|
}
|
|
}
|
|
|
|
fn get_pads(&self) -> Vec<Pad> {
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|
unsafe {
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let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
|
FromGlibPtrContainer::from_glib_none(elt.pads)
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|
}
|
|
}
|
|
|
|
fn get_sink_pads(&self) -> Vec<Pad> {
|
|
unsafe {
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|
let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
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FromGlibPtrContainer::from_glib_none(elt.sinkpads)
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|
}
|
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}
|
|
|
|
fn get_src_pads(&self) -> Vec<Pad> {
|
|
unsafe {
|
|
let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
|
FromGlibPtrContainer::from_glib_none(elt.srcpads)
|
|
}
|
|
}
|
|
|
|
fn num_pads(&self) -> u16 {
|
|
unsafe {
|
|
let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
|
elt.numpads
|
|
}
|
|
}
|
|
|
|
fn num_sink_pads(&self) -> u16 {
|
|
unsafe {
|
|
let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
|
elt.numsinkpads
|
|
}
|
|
}
|
|
|
|
fn num_src_pads(&self) -> u16 {
|
|
unsafe {
|
|
let elt: &gst_sys::GstElement = &*(self.as_ptr() as *const _);
|
|
let _guard = ::utils::MutexGuard::lock(&elt.object.lock);
|
|
elt.numsrcpads
|
|
}
|
|
}
|
|
|
|
#[cfg(any(feature = "v1_10", feature = "dox"))]
|
|
fn add_property_deep_notify_watch(
|
|
&self,
|
|
property_name: Option<&str>,
|
|
include_value: bool,
|
|
) -> NotifyWatchId {
|
|
let property_name = property_name.to_glib_none();
|
|
unsafe {
|
|
from_glib(gst_sys::gst_element_add_property_deep_notify_watch(
|
|
self.as_ref().to_glib_none().0,
|
|
property_name.0,
|
|
include_value.to_glib(),
|
|
))
|
|
}
|
|
}
|
|
|
|
#[cfg(any(feature = "v1_10", feature = "dox"))]
|
|
fn add_property_notify_watch(
|
|
&self,
|
|
property_name: Option<&str>,
|
|
include_value: bool,
|
|
) -> NotifyWatchId {
|
|
let property_name = property_name.to_glib_none();
|
|
unsafe {
|
|
from_glib(gst_sys::gst_element_add_property_notify_watch(
|
|
self.as_ref().to_glib_none().0,
|
|
property_name.0,
|
|
include_value.to_glib(),
|
|
))
|
|
}
|
|
}
|
|
|
|
#[cfg(any(feature = "v1_10", feature = "dox"))]
|
|
fn remove_property_notify_watch(&self, watch_id: NotifyWatchId) {
|
|
unsafe {
|
|
gst_sys::gst_element_remove_property_notify_watch(
|
|
self.as_ref().to_glib_none().0,
|
|
watch_id.to_glib(),
|
|
);
|
|
}
|
|
}
|
|
|
|
fn query_convert<V: Into<GenericFormattedValue>, U: SpecificFormattedValue>(
|
|
&self,
|
|
src_val: V,
|
|
) -> Option<U> {
|
|
let src_val = src_val.into();
|
|
unsafe {
|
|
let mut dest_val = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_convert(
|
|
self.as_ref().to_glib_none().0,
|
|
src_val.get_format().to_glib(),
|
|
src_val.to_raw_value(),
|
|
U::get_default_format().to_glib(),
|
|
dest_val.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(U::from_raw(U::get_default_format(), dest_val.assume_init()))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn query_convert_generic<V: Into<GenericFormattedValue>>(
|
|
&self,
|
|
src_val: V,
|
|
dest_format: Format,
|
|
) -> Option<GenericFormattedValue> {
|
|
let src_val = src_val.into();
|
|
unsafe {
|
|
let mut dest_val = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_convert(
|
|
self.as_ref().to_glib_none().0,
|
|
src_val.get_format().to_glib(),
|
|
src_val.get_value(),
|
|
dest_format.to_glib(),
|
|
dest_val.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(GenericFormattedValue::new(
|
|
dest_format,
|
|
dest_val.assume_init(),
|
|
))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn query_duration<T: SpecificFormattedValue>(&self) -> Option<T> {
|
|
unsafe {
|
|
let mut duration = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_duration(
|
|
self.as_ref().to_glib_none().0,
|
|
T::get_default_format().to_glib(),
|
|
duration.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(T::from_raw(T::get_default_format(), duration.assume_init()))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn query_duration_generic(&self, format: Format) -> Option<GenericFormattedValue> {
|
|
unsafe {
|
|
let mut duration = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_duration(
|
|
self.as_ref().to_glib_none().0,
|
|
format.to_glib(),
|
|
duration.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(GenericFormattedValue::new(format, duration.assume_init()))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn query_position<T: SpecificFormattedValue>(&self) -> Option<T> {
|
|
unsafe {
|
|
let mut cur = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_position(
|
|
self.as_ref().to_glib_none().0,
|
|
T::get_default_format().to_glib(),
|
|
cur.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(T::from_raw(T::get_default_format(), cur.assume_init()))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn query_position_generic(&self, format: Format) -> Option<GenericFormattedValue> {
|
|
unsafe {
|
|
let mut cur = mem::MaybeUninit::uninit();
|
|
let ret = from_glib(gst_sys::gst_element_query_position(
|
|
self.as_ref().to_glib_none().0,
|
|
format.to_glib(),
|
|
cur.as_mut_ptr(),
|
|
));
|
|
if ret {
|
|
Some(GenericFormattedValue::new(format, cur.assume_init()))
|
|
} else {
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
fn seek<V: Into<GenericFormattedValue>>(
|
|
&self,
|
|
rate: f64,
|
|
flags: ::SeekFlags,
|
|
start_type: ::SeekType,
|
|
start: V,
|
|
stop_type: ::SeekType,
|
|
stop: V,
|
|
) -> Result<(), glib::error::BoolError> {
|
|
let start = start.into();
|
|
let stop = stop.into();
|
|
|
|
assert_eq!(stop.get_format(), start.get_format());
|
|
|
|
unsafe {
|
|
glib_result_from_gboolean!(
|
|
gst_sys::gst_element_seek(
|
|
self.as_ref().to_glib_none().0,
|
|
rate,
|
|
start.get_format().to_glib(),
|
|
flags.to_glib(),
|
|
start_type.to_glib(),
|
|
start.get_value(),
|
|
stop_type.to_glib(),
|
|
stop.get_value(),
|
|
),
|
|
"Failed to seek",
|
|
)
|
|
}
|
|
}
|
|
|
|
fn seek_simple<V: Into<GenericFormattedValue>>(
|
|
&self,
|
|
seek_flags: ::SeekFlags,
|
|
seek_pos: V,
|
|
) -> Result<(), glib::error::BoolError> {
|
|
let seek_pos = seek_pos.into();
|
|
unsafe {
|
|
glib_result_from_gboolean!(
|
|
gst_sys::gst_element_seek_simple(
|
|
self.as_ref().to_glib_none().0,
|
|
seek_pos.get_format().to_glib(),
|
|
seek_flags.to_glib(),
|
|
seek_pos.get_value(),
|
|
),
|
|
"Failed to seek",
|
|
)
|
|
}
|
|
}
|
|
|
|
#[cfg(any(feature = "v1_10", feature = "dox"))]
|
|
fn call_async<F>(&self, func: F)
|
|
where
|
|
F: FnOnce(&Self) + Send + 'static,
|
|
{
|
|
let user_data: Box<Option<F>> = Box::new(Some(func));
|
|
|
|
unsafe extern "C" fn trampoline<O: IsA<Element>, F: FnOnce(&O) + Send + 'static>(
|
|
element: *mut gst_sys::GstElement,
|
|
user_data: glib_sys::gpointer,
|
|
) {
|
|
let user_data: &mut Option<F> = &mut *(user_data as *mut _);
|
|
let callback = user_data.take().unwrap();
|
|
|
|
callback(&Element::from_glib_borrow(element).unsafe_cast_ref());
|
|
}
|
|
|
|
unsafe extern "C" fn free_user_data<O: IsA<Element>, F: FnOnce(&O) + Send + 'static>(
|
|
user_data: glib_sys::gpointer,
|
|
) {
|
|
let _: Box<Option<F>> = Box::from_raw(user_data as *mut _);
|
|
}
|
|
|
|
unsafe {
|
|
gst_sys::gst_element_call_async(
|
|
self.as_ref().to_glib_none().0,
|
|
Some(trampoline::<Self, F>),
|
|
Box::into_raw(user_data) as *mut _,
|
|
Some(free_user_data::<Self, F>),
|
|
);
|
|
}
|
|
}
|
|
|
|
#[cfg(any(feature = "v1_10", feature = "dox"))]
|
|
fn call_async_future<F, T>(
|
|
&self,
|
|
func: F,
|
|
) -> Pin<Box<dyn Future<Output = T> + Unpin + Send + 'static>>
|
|
where
|
|
F: FnOnce(&Self) -> T + Send + 'static,
|
|
T: Send + 'static,
|
|
{
|
|
use futures_channel::oneshot;
|
|
use futures_util::future::FutureExt;
|
|
|
|
let (sender, receiver) = oneshot::channel();
|
|
|
|
self.call_async(move |element| {
|
|
let _ = sender.send(func(element));
|
|
});
|
|
|
|
Box::pin(receiver.map(|res| res.expect("sender dropped")))
|
|
}
|
|
}
|
|
|
|
impl ElementClass {
|
|
pub fn get_metadata<'a>(&self, key: &str) -> Option<&'a str> {
|
|
unsafe {
|
|
let klass = self as *const _ as *const gst_sys::GstElementClass;
|
|
|
|
let ptr =
|
|
gst_sys::gst_element_class_get_metadata(klass as *mut _, key.to_glib_none().0);
|
|
|
|
if ptr.is_null() {
|
|
None
|
|
} else {
|
|
Some(CStr::from_ptr(ptr).to_str().unwrap())
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn get_pad_template(&self, name: &str) -> Option<PadTemplate> {
|
|
unsafe {
|
|
let klass = self as *const _ as *const gst_sys::GstElementClass;
|
|
|
|
from_glib_none(gst_sys::gst_element_class_get_pad_template(
|
|
klass as *mut _,
|
|
name.to_glib_none().0,
|
|
))
|
|
}
|
|
}
|
|
|
|
pub fn get_pad_template_list(&self) -> Vec<PadTemplate> {
|
|
unsafe {
|
|
let klass = self as *const _ as *const gst_sys::GstElementClass;
|
|
|
|
FromGlibPtrContainer::from_glib_none(gst_sys::gst_element_class_get_pad_template_list(
|
|
klass as *mut _,
|
|
))
|
|
}
|
|
}
|
|
}
|
|
|
|
pub static ELEMENT_METADATA_AUTHOR: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_AUTHOR)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
pub static ELEMENT_METADATA_DESCRIPTION: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_DESCRIPTION)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
pub static ELEMENT_METADATA_DOC_URI: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_DOC_URI)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
pub static ELEMENT_METADATA_ICON_NAME: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_ICON_NAME)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
pub static ELEMENT_METADATA_KLASS: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_KLASS)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
pub static ELEMENT_METADATA_LONGNAME: Lazy<&'static str> = Lazy::new(|| unsafe {
|
|
CStr::from_ptr(gst_sys::GST_ELEMENT_METADATA_LONGNAME)
|
|
.to_str()
|
|
.unwrap()
|
|
});
|
|
|
|
#[macro_export]
|
|
macro_rules! gst_element_error(
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Error,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
);
|
|
|
|
#[macro_export]
|
|
macro_rules! gst_element_warning(
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Warning,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
);
|
|
|
|
#[macro_export]
|
|
macro_rules! gst_element_info(
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*)) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*]) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
);
|
|
}};
|
|
|
|
($obj:expr, $err:expr, ($msg:expr), [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some($msg),
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($msg:expr), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some($msg),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$debug:expr], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
None,
|
|
Some($debug),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, ($($msg:tt)*), details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
Some(&format!($($msg)*)),
|
|
None,
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
($obj:expr, $err:expr, [$($debug:tt)*], details: $details:expr) => { {
|
|
use $crate::ElementExtManual;
|
|
$obj.message_full_with_details(
|
|
$crate::ElementMessageType::Info,
|
|
$err,
|
|
None,
|
|
Some(&format!($($debug)*)),
|
|
file!(),
|
|
module_path!(),
|
|
line!(),
|
|
$details,
|
|
);
|
|
}};
|
|
);
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use glib::GString;
|
|
use prelude::*;
|
|
#[cfg(feature = "v1_10")]
|
|
use std::sync::mpsc::channel;
|
|
|
|
#[test]
|
|
fn test_get_pads() {
|
|
::init().unwrap();
|
|
|
|
let identity = ::ElementFactory::make("identity", None).unwrap();
|
|
|
|
let mut pad_names = identity
|
|
.get_pads()
|
|
.iter()
|
|
.map(|p| p.get_name())
|
|
.collect::<Vec<GString>>();
|
|
pad_names.sort();
|
|
assert_eq!(pad_names, vec![String::from("sink"), String::from("src")]);
|
|
|
|
let mut pad_names = identity
|
|
.get_sink_pads()
|
|
.iter()
|
|
.map(|p| p.get_name())
|
|
.collect::<Vec<GString>>();
|
|
pad_names.sort();
|
|
assert_eq!(pad_names, vec![String::from("sink")]);
|
|
|
|
let mut pad_names = identity
|
|
.get_src_pads()
|
|
.iter()
|
|
.map(|p| p.get_name())
|
|
.collect::<Vec<GString>>();
|
|
pad_names.sort();
|
|
assert_eq!(pad_names, vec![String::from("src")]);
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "v1_14")]
|
|
fn test_foreach_pad() {
|
|
::init().unwrap();
|
|
|
|
let identity = ::ElementFactory::make("identity", None).unwrap();
|
|
|
|
let mut pad_names = Vec::new();
|
|
identity.foreach_pad(|_element, pad| {
|
|
pad_names.push(pad.get_name());
|
|
|
|
true
|
|
});
|
|
pad_names.sort();
|
|
assert_eq!(pad_names, vec![String::from("sink"), String::from("src")]);
|
|
}
|
|
|
|
#[cfg(feature = "v1_10")]
|
|
#[test]
|
|
fn test_call_async() {
|
|
::init().unwrap();
|
|
|
|
let identity = ::ElementFactory::make("identity", None).unwrap();
|
|
let (sender, receiver) = channel();
|
|
|
|
identity.call_async(move |_| {
|
|
sender.send(()).unwrap();
|
|
});
|
|
|
|
assert_eq!(receiver.recv(), Ok(()));
|
|
}
|
|
}
|