2020-03-17 15:19:01 +00:00
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// Copyright (C) 2020 Mathieu Duponchelle <mathieu@centricular.com>
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2020-01-03 17:46:32 +00:00
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the
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// Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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// Boston, MA 02110-1335, USA.
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2022-01-15 19:18:47 +00:00
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//
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// SPDX-License-Identifier: LGPL-2.1-or-later
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2020-01-03 17:46:32 +00:00
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use futures::future::BoxFuture;
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use futures::future::{abortable, AbortHandle};
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use futures::prelude::*;
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2021-06-03 18:20:54 +00:00
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use gst::glib;
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2020-01-03 17:46:32 +00:00
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use gst::prelude::*;
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use gst::subclass::prelude::*;
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2020-11-22 14:24:55 +00:00
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use once_cell::sync::Lazy;
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2020-01-03 17:46:32 +00:00
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use std::collections::HashMap;
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2020-03-17 15:19:01 +00:00
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use std::sync::{Arc, Mutex};
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2020-01-03 17:46:32 +00:00
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use std::time::Duration;
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use std::u32;
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use crate::runtime::prelude::*;
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2020-03-26 18:07:25 +00:00
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use crate::runtime::{self, PadSink, PadSinkRef, PadSrc, PadSrcRef};
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2020-01-03 17:46:32 +00:00
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const DEFAULT_CONTEXT: &str = "";
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2021-10-09 10:17:05 +00:00
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const DEFAULT_CONTEXT_WAIT: Duration = Duration::ZERO;
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2020-01-03 17:46:32 +00:00
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#[derive(Debug, Clone)]
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struct Settings {
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context: String,
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2021-05-26 09:54:34 +00:00
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context_wait: Duration,
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2020-01-03 17:46:32 +00:00
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}
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impl Default for Settings {
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fn default() -> Self {
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Settings {
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context: DEFAULT_CONTEXT.into(),
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context_wait: DEFAULT_CONTEXT_WAIT,
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}
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}
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}
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#[derive(Debug)]
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struct InputSelectorPadSinkHandlerInner {
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segment: Option<gst::Segment>,
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2020-02-27 14:34:44 +00:00
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send_sticky: bool,
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2020-01-03 17:46:32 +00:00
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abort_handle: Option<AbortHandle>,
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}
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impl Default for InputSelectorPadSinkHandlerInner {
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fn default() -> Self {
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InputSelectorPadSinkHandlerInner {
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segment: None,
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2020-02-27 14:34:44 +00:00
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send_sticky: true,
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2020-01-03 17:46:32 +00:00
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abort_handle: None,
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}
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}
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}
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2020-04-29 13:03:43 +00:00
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#[derive(Clone, Debug, Default)]
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2020-01-03 17:46:32 +00:00
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struct InputSelectorPadSinkHandler(Arc<Mutex<InputSelectorPadSinkHandlerInner>>);
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impl InputSelectorPadSinkHandler {
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/* Wait until specified time */
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2021-05-26 09:54:34 +00:00
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async fn sync(
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&self,
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element: &super::InputSelector,
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running_time: impl Into<Option<gst::ClockTime>>,
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) {
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2021-04-12 12:49:54 +00:00
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let now = element.current_running_time();
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2020-01-03 17:46:32 +00:00
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2021-10-09 10:17:05 +00:00
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match running_time.into().opt_checked_sub(now) {
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Ok(Some(delay)) => runtime::time::delay_for(delay.into()).await,
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_ => runtime::executor::yield_now().await,
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2020-01-03 17:46:32 +00:00
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}
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}
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async fn handle_item(
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&self,
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2020-02-27 14:00:37 +00:00
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pad: &PadSinkRef<'_>,
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2020-11-14 17:09:42 +00:00
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element: &super::InputSelector,
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2020-02-27 15:12:56 +00:00
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mut buffer: gst::Buffer,
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2020-01-03 17:46:32 +00:00
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) -> Result<gst::FlowSuccess, gst::FlowError> {
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2022-01-17 17:36:41 +00:00
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let inputselector = element.imp();
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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let (stickies, is_active, sync_future, switched_pad) = {
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let mut state = inputselector.state.lock().unwrap();
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let mut inner = self.0.lock().unwrap();
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let mut stickies = vec![];
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let mut sync_future = None;
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let switched_pad = state.switched_pad;
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if let Some(segment) = &inner.segment {
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if let Some(segment) = segment.downcast_ref::<gst::format::Time>() {
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2021-04-12 12:49:54 +00:00
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let rtime = segment.to_running_time(buffer.pts());
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2021-07-30 10:53:35 +00:00
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let (sync_fut, abort_handle) = abortable(self.sync(element, rtime));
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2020-03-17 15:19:01 +00:00
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inner.abort_handle = Some(abort_handle);
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sync_future = Some(sync_fut.map_err(|_| gst::FlowError::Flushing));
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}
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2020-01-03 17:46:32 +00:00
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}
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2020-03-17 15:19:01 +00:00
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let is_active = {
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if state.active_sinkpad.as_ref() == Some(pad.gst_pad()) {
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if inner.send_sticky || state.switched_pad {
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pad.gst_pad().sticky_events_foreach(|event| {
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2021-12-01 13:33:45 +00:00
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use std::ops::ControlFlow;
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2020-03-17 15:19:01 +00:00
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stickies.push(event.clone());
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2021-12-01 13:33:45 +00:00
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ControlFlow::Continue(gst::EventForeachAction::Keep)
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2020-03-17 15:19:01 +00:00
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});
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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inner.send_sticky = false;
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state.switched_pad = false;
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}
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true
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} else {
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false
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}
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};
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2020-02-27 15:12:56 +00:00
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2020-03-17 15:19:01 +00:00
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(stickies, is_active, sync_future, switched_pad)
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};
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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if let Some(sync_fut) = sync_future {
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sync_fut.await?;
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}
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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for event in stickies {
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inputselector.src_pad.push_event(event).await;
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}
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2020-02-27 14:34:44 +00:00
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2020-03-17 15:19:01 +00:00
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if is_active {
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Forwarding {:?}", buffer);
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2020-03-17 15:19:01 +00:00
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2021-04-12 12:49:54 +00:00
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if switched_pad && !buffer.flags().contains(gst::BufferFlags::DISCONT) {
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2020-03-17 15:19:01 +00:00
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let buffer = buffer.make_mut();
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buffer.set_flags(gst::BufferFlags::DISCONT);
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2020-02-27 14:34:44 +00:00
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}
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2020-01-03 17:46:32 +00:00
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inputselector.src_pad.push(buffer).await
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} else {
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Ok(gst::FlowSuccess::Ok)
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}
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}
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}
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impl PadSinkHandler for InputSelectorPadSinkHandler {
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type ElementImpl = InputSelector;
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fn sink_chain(
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&self,
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2020-02-19 19:42:19 +00:00
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pad: &PadSinkRef,
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_inputselector: &InputSelector,
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element: &gst::Element,
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buffer: gst::Buffer,
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) -> BoxFuture<'static, Result<gst::FlowSuccess, gst::FlowError>> {
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let this = self.clone();
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2020-11-14 17:09:42 +00:00
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let element = element.clone().downcast::<super::InputSelector>().unwrap();
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2020-01-03 17:46:32 +00:00
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let pad_weak = pad.downgrade();
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async move {
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let pad = pad_weak.upgrade().expect("PadSink no longer exists");
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2020-02-27 14:00:37 +00:00
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this.handle_item(&pad, &element, buffer).await
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2020-01-03 17:46:32 +00:00
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}
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.boxed()
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}
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fn sink_chain_list(
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&self,
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2020-02-19 19:42:19 +00:00
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pad: &PadSinkRef,
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2020-01-03 17:46:32 +00:00
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_inputselector: &InputSelector,
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element: &gst::Element,
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list: gst::BufferList,
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) -> BoxFuture<'static, Result<gst::FlowSuccess, gst::FlowError>> {
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2020-02-27 14:00:37 +00:00
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let this = self.clone();
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2020-11-14 17:09:42 +00:00
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let element = element.clone().downcast::<super::InputSelector>().unwrap();
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2020-01-03 17:46:32 +00:00
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let pad_weak = pad.downgrade();
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async move {
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let pad = pad_weak.upgrade().expect("PadSink no longer exists");
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Handling buffer list {:?}", list);
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2020-02-27 14:00:37 +00:00
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// TODO: Ideally we would keep the list intact and forward it in one go
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for buffer in list.iter_owned() {
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this.handle_item(&pad, &element, buffer).await?;
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}
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Ok(gst::FlowSuccess::Ok)
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2020-01-03 17:46:32 +00:00
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}
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.boxed()
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}
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2020-03-17 15:19:01 +00:00
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fn sink_event_serialized(
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2020-01-03 17:46:32 +00:00
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&self,
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2020-02-19 19:42:19 +00:00
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_pad: &PadSinkRef,
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2020-03-17 15:19:01 +00:00
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_inputselector: &InputSelector,
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2020-01-03 17:46:32 +00:00
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_element: &gst::Element,
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event: gst::Event,
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2020-03-17 15:19:01 +00:00
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) -> BoxFuture<'static, bool> {
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let this = self.clone();
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2020-02-27 14:34:44 +00:00
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2020-03-17 15:19:01 +00:00
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async move {
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let mut inner = this.0.lock().unwrap();
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// Remember the segment for later use
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2020-03-26 18:07:25 +00:00
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if let gst::EventView::Segment(e) = event.view() {
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2021-04-12 12:49:54 +00:00
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inner.segment = Some(e.segment().clone());
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2020-03-17 15:19:01 +00:00
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}
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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// We sent sticky events together with the next buffer once it becomes
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// the active pad.
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//
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// TODO: Other serialized events for the active pad can also be forwarded
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// here, and sticky events could be forwarded directly. Needs forwarding of
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// all other sticky events first!
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if event.is_sticky() {
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inner.send_sticky = true;
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true
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} else {
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true
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}
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}
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.boxed()
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}
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2020-01-03 17:46:32 +00:00
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2020-03-17 15:19:01 +00:00
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fn sink_event(
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&self,
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_pad: &PadSinkRef,
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inputselector: &InputSelector,
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_element: &gst::Element,
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event: gst::Event,
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) -> bool {
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/* Drop all events for now */
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2020-03-26 18:07:25 +00:00
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if let gst::EventView::FlushStart(..) = event.view() {
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/* Unblock downstream */
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inputselector.src_pad.gst_pad().push_event(event.clone());
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2020-03-17 15:19:01 +00:00
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2020-03-26 18:07:25 +00:00
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let mut inner = self.0.lock().unwrap();
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2020-03-17 15:19:01 +00:00
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2020-03-26 18:07:25 +00:00
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if let Some(abort_handle) = inner.abort_handle.take() {
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abort_handle.abort();
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2020-01-03 17:46:32 +00:00
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}
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}
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2020-03-17 15:19:01 +00:00
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true
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2020-01-03 17:46:32 +00:00
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}
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fn sink_query(
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&self,
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2020-02-19 19:42:19 +00:00
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pad: &PadSinkRef,
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2020-01-03 17:46:32 +00:00
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inputselector: &InputSelector,
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_element: &gst::Element,
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query: &mut gst::QueryRef,
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) -> bool {
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Handling query {:?}", query);
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2020-01-03 17:46:32 +00:00
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if query.is_serialized() {
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// FIXME: How can we do this (drops ALLOCATION and DRAIN)?
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Dropping serialized query {:?}", query);
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2020-01-03 17:46:32 +00:00
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false
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} else {
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Forwarding query {:?}", query);
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2020-01-03 17:46:32 +00:00
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inputselector.src_pad.gst_pad().peer_query(query)
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}
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}
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}
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#[derive(Clone, Debug)]
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struct InputSelectorPadSrcHandler;
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impl PadSrcHandler for InputSelectorPadSrcHandler {
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type ElementImpl = InputSelector;
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2020-03-17 15:19:01 +00:00
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fn src_query(
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&self,
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pad: &PadSrcRef,
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inputselector: &InputSelector,
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_element: &gst::Element,
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query: &mut gst::QueryRef,
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) -> bool {
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2022-01-19 13:07:45 +00:00
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use gst::QueryViewMut;
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2020-03-17 15:19:01 +00:00
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2022-02-21 17:43:46 +00:00
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gst::log!(CAT, obj: pad.gst_pad(), "Handling {:?}", query);
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2020-03-17 15:19:01 +00:00
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match query.view_mut() {
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2022-01-19 13:07:45 +00:00
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QueryViewMut::Latency(q) => {
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2020-03-17 15:19:01 +00:00
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let mut ret = true;
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2021-05-26 09:54:34 +00:00
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let mut min_latency = gst::ClockTime::ZERO;
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let mut max_latency = gst::ClockTime::NONE;
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2020-03-19 09:29:05 +00:00
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let pads = {
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|
|
let pads = inputselector.pads.lock().unwrap();
|
|
|
|
pads.sink_pads
|
|
|
|
.iter()
|
|
|
|
.map(|p| p.0.clone())
|
|
|
|
.collect::<Vec<_>>()
|
2020-03-17 15:19:01 +00:00
|
|
|
};
|
|
|
|
|
2020-03-19 09:29:05 +00:00
|
|
|
for pad in pads {
|
2020-06-24 22:33:57 +00:00
|
|
|
let mut peer_query = gst::query::Latency::new();
|
2020-03-17 15:19:01 +00:00
|
|
|
|
2020-03-19 09:29:05 +00:00
|
|
|
ret = pad.peer_query(&mut peer_query);
|
2020-03-17 15:19:01 +00:00
|
|
|
|
|
|
|
if ret {
|
2021-04-12 12:49:54 +00:00
|
|
|
let (live, min, max) = peer_query.result();
|
2020-03-19 09:29:05 +00:00
|
|
|
if live {
|
2021-05-26 09:54:34 +00:00
|
|
|
min_latency = min.max(min_latency);
|
2021-10-09 10:17:05 +00:00
|
|
|
max_latency = max.opt_min(max_latency).or(max);
|
2020-03-19 09:29:05 +00:00
|
|
|
}
|
2020-03-17 15:19:01 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
q.set(true, min_latency, max_latency);
|
|
|
|
|
|
|
|
ret
|
|
|
|
}
|
|
|
|
_ => {
|
|
|
|
let sinkpad = {
|
|
|
|
let state = inputselector.state.lock().unwrap();
|
|
|
|
state.active_sinkpad.clone()
|
|
|
|
};
|
|
|
|
|
|
|
|
if let Some(sinkpad) = sinkpad {
|
|
|
|
sinkpad.peer_query(query)
|
|
|
|
} else {
|
|
|
|
true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Debug)]
|
|
|
|
struct State {
|
|
|
|
active_sinkpad: Option<gst::Pad>,
|
2020-02-27 15:12:56 +00:00
|
|
|
switched_pad: bool,
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for State {
|
|
|
|
fn default() -> State {
|
|
|
|
State {
|
|
|
|
active_sinkpad: None,
|
2020-02-27 15:12:56 +00:00
|
|
|
switched_pad: true,
|
2020-01-29 19:18:15 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-11-30 14:31:50 +00:00
|
|
|
#[derive(Debug, Default)]
|
2020-01-29 19:18:15 +00:00
|
|
|
struct Pads {
|
|
|
|
pad_serial: u32,
|
|
|
|
sink_pads: HashMap<gst::Pad, PadSink>,
|
|
|
|
}
|
|
|
|
|
2020-01-03 17:46:32 +00:00
|
|
|
#[derive(Debug)]
|
2020-11-14 17:09:42 +00:00
|
|
|
pub struct InputSelector {
|
2020-01-03 17:46:32 +00:00
|
|
|
src_pad: PadSrc,
|
|
|
|
state: Mutex<State>,
|
|
|
|
settings: Mutex<Settings>,
|
2020-01-29 19:18:15 +00:00
|
|
|
pads: Mutex<Pads>,
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
2020-11-22 14:24:55 +00:00
|
|
|
static CAT: Lazy<gst::DebugCategory> = Lazy::new(|| {
|
|
|
|
gst::DebugCategory::new(
|
2020-01-03 17:46:32 +00:00
|
|
|
"ts-input-selector",
|
|
|
|
gst::DebugColorFlags::empty(),
|
|
|
|
Some("Thread-sharing input selector"),
|
2020-11-22 14:24:55 +00:00
|
|
|
)
|
|
|
|
});
|
2020-01-03 17:46:32 +00:00
|
|
|
|
|
|
|
impl InputSelector {
|
2021-02-09 16:57:34 +00:00
|
|
|
fn unprepare(&self, element: &super::InputSelector) {
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut state = self.state.lock().unwrap();
|
2022-02-21 17:43:46 +00:00
|
|
|
gst::debug!(CAT, obj: element, "Unpreparing");
|
2020-01-03 17:46:32 +00:00
|
|
|
*state = State::default();
|
2022-02-21 17:43:46 +00:00
|
|
|
gst::debug!(CAT, obj: element, "Unprepared");
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-03-07 16:22:24 +00:00
|
|
|
#[glib::object_subclass]
|
2020-01-03 17:46:32 +00:00
|
|
|
impl ObjectSubclass for InputSelector {
|
|
|
|
const NAME: &'static str = "RsTsInputSelector";
|
2020-11-14 17:09:42 +00:00
|
|
|
type Type = super::InputSelector;
|
2020-01-03 17:46:32 +00:00
|
|
|
type ParentType = gst::Element;
|
|
|
|
|
2020-11-14 17:09:42 +00:00
|
|
|
fn with_class(klass: &Self::Class) -> Self {
|
2020-01-03 17:46:32 +00:00
|
|
|
Self {
|
2020-04-29 13:03:43 +00:00
|
|
|
src_pad: PadSrc::new(
|
2021-04-20 12:58:11 +00:00
|
|
|
gst::Pad::from_template(&klass.pad_template("src").unwrap(), Some("src")),
|
2020-04-29 13:03:43 +00:00
|
|
|
InputSelectorPadSrcHandler,
|
|
|
|
),
|
2020-01-03 17:46:32 +00:00
|
|
|
state: Mutex::new(State::default()),
|
|
|
|
settings: Mutex::new(Settings::default()),
|
2020-01-29 19:18:15 +00:00
|
|
|
pads: Mutex::new(Pads::default()),
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectImpl for InputSelector {
|
2021-01-21 18:21:29 +00:00
|
|
|
fn properties() -> &'static [glib::ParamSpec] {
|
|
|
|
static PROPERTIES: Lazy<Vec<glib::ParamSpec>> = Lazy::new(|| {
|
|
|
|
vec![
|
2022-08-18 12:04:15 +00:00
|
|
|
glib::ParamSpecString::builder("context")
|
|
|
|
.nick("Context")
|
|
|
|
.blurb("Context name to share threads with")
|
|
|
|
.default_value(Some(DEFAULT_CONTEXT))
|
|
|
|
.readwrite()
|
|
|
|
.build(),
|
|
|
|
glib::ParamSpecUInt::builder("context-wait")
|
|
|
|
.nick("Context Wait")
|
|
|
|
.blurb("Throttle poll loop to run at most once every this many ms")
|
|
|
|
.maximum(1000)
|
|
|
|
.default_value(DEFAULT_CONTEXT_WAIT.as_millis() as u32)
|
|
|
|
.readwrite()
|
|
|
|
.build(),
|
|
|
|
glib::ParamSpecObject::builder("active-pad", gst::Pad::static_type())
|
|
|
|
.nick("Active Pad")
|
|
|
|
.blurb("Currently active pad")
|
|
|
|
.readwrite()
|
|
|
|
.mutable_playing()
|
|
|
|
.build(),
|
2021-01-21 18:21:29 +00:00
|
|
|
]
|
|
|
|
});
|
|
|
|
|
|
|
|
PROPERTIES.as_ref()
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2021-01-21 18:21:29 +00:00
|
|
|
fn set_property(
|
|
|
|
&self,
|
|
|
|
_obj: &Self::Type,
|
|
|
|
_id: usize,
|
|
|
|
value: &glib::Value,
|
|
|
|
pspec: &glib::ParamSpec,
|
|
|
|
) {
|
2021-04-12 12:49:54 +00:00
|
|
|
match pspec.name() {
|
2021-01-21 18:21:29 +00:00
|
|
|
"context" => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
2020-01-03 17:46:32 +00:00
|
|
|
settings.context = value
|
2021-04-25 12:41:22 +00:00
|
|
|
.get::<Option<String>>()
|
2020-01-03 17:46:32 +00:00
|
|
|
.expect("type checked upstream")
|
2021-12-14 18:40:27 +00:00
|
|
|
.unwrap_or_else(|| DEFAULT_CONTEXT.into());
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
2021-01-21 18:21:29 +00:00
|
|
|
"context-wait" => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
2021-05-26 09:54:34 +00:00
|
|
|
settings.context_wait = Duration::from_millis(
|
|
|
|
value.get::<u32>().expect("type checked upstream").into(),
|
|
|
|
);
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
2021-01-21 18:21:29 +00:00
|
|
|
"active-pad" => {
|
2021-04-25 12:41:22 +00:00
|
|
|
let pad = value
|
|
|
|
.get::<Option<gst::Pad>>()
|
|
|
|
.expect("type checked upstream");
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
let pads = self.pads.lock().unwrap();
|
2020-03-19 09:29:32 +00:00
|
|
|
let mut old_pad = None;
|
|
|
|
if let Some(ref pad) = pad {
|
2021-07-30 10:53:35 +00:00
|
|
|
if pads.sink_pads.get(pad).is_some() {
|
2020-03-19 09:29:32 +00:00
|
|
|
old_pad = state.active_sinkpad.clone();
|
|
|
|
state.active_sinkpad = Some(pad.clone());
|
2020-02-27 15:12:56 +00:00
|
|
|
state.switched_pad = true;
|
2020-02-27 14:34:44 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
state.active_sinkpad = None;
|
|
|
|
}
|
2020-03-19 09:29:32 +00:00
|
|
|
|
|
|
|
drop(pads);
|
|
|
|
drop(state);
|
|
|
|
|
|
|
|
if let Some(old_pad) = old_pad {
|
|
|
|
if Some(&old_pad) != pad.as_ref() {
|
2020-06-24 22:33:57 +00:00
|
|
|
let _ = old_pad.push_event(gst::event::Reconfigure::new());
|
2020-03-19 09:29:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if let Some(pad) = pad {
|
2020-06-24 22:33:57 +00:00
|
|
|
let _ = pad.push_event(gst::event::Reconfigure::new());
|
2020-03-19 09:29:32 +00:00
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-04-20 12:57:40 +00:00
|
|
|
fn property(&self, _obj: &Self::Type, _id: usize, pspec: &glib::ParamSpec) -> glib::Value {
|
2021-04-12 12:49:54 +00:00
|
|
|
match pspec.name() {
|
2021-01-21 18:21:29 +00:00
|
|
|
"context" => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let settings = self.settings.lock().unwrap();
|
2020-11-19 15:55:57 +00:00
|
|
|
settings.context.to_value()
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
2021-01-21 18:21:29 +00:00
|
|
|
"context-wait" => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let settings = self.settings.lock().unwrap();
|
2021-05-26 09:54:34 +00:00
|
|
|
(settings.context_wait.as_millis() as u32).to_value()
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
2021-01-21 18:21:29 +00:00
|
|
|
"active-pad" => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let state = self.state.lock().unwrap();
|
2020-01-03 17:46:32 +00:00
|
|
|
let active_pad = state.active_sinkpad.clone();
|
2020-11-19 15:55:57 +00:00
|
|
|
active_pad.to_value()
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-11-14 17:09:42 +00:00
|
|
|
fn constructed(&self, obj: &Self::Type) {
|
2020-01-03 17:46:32 +00:00
|
|
|
self.parent_constructed(obj);
|
|
|
|
|
2020-11-14 17:09:42 +00:00
|
|
|
obj.add_pad(self.src_pad.gst_pad()).unwrap();
|
|
|
|
obj.set_element_flags(gst::ElementFlags::PROVIDE_CLOCK | gst::ElementFlags::REQUIRE_CLOCK);
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-10-23 08:57:31 +00:00
|
|
|
impl GstObjectImpl for InputSelector {}
|
|
|
|
|
2020-01-03 17:46:32 +00:00
|
|
|
impl ElementImpl for InputSelector {
|
2021-01-21 18:21:29 +00:00
|
|
|
fn metadata() -> Option<&'static gst::subclass::ElementMetadata> {
|
|
|
|
static ELEMENT_METADATA: Lazy<gst::subclass::ElementMetadata> = Lazy::new(|| {
|
|
|
|
gst::subclass::ElementMetadata::new(
|
|
|
|
"Thread-sharing input selector",
|
|
|
|
"Generic",
|
|
|
|
"Simple input selector element",
|
|
|
|
"Mathieu Duponchelle <mathieu@centricular.com>",
|
|
|
|
)
|
|
|
|
});
|
|
|
|
|
|
|
|
Some(&*ELEMENT_METADATA)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn pad_templates() -> &'static [gst::PadTemplate] {
|
|
|
|
static PAD_TEMPLATES: Lazy<Vec<gst::PadTemplate>> = Lazy::new(|| {
|
|
|
|
let caps = gst::Caps::new_any();
|
|
|
|
let sink_pad_template = gst::PadTemplate::new(
|
|
|
|
"sink_%u",
|
|
|
|
gst::PadDirection::Sink,
|
|
|
|
gst::PadPresence::Request,
|
|
|
|
&caps,
|
|
|
|
)
|
|
|
|
.unwrap();
|
|
|
|
|
|
|
|
let src_pad_template = gst::PadTemplate::new(
|
|
|
|
"src",
|
|
|
|
gst::PadDirection::Src,
|
|
|
|
gst::PadPresence::Always,
|
|
|
|
&caps,
|
|
|
|
)
|
|
|
|
.unwrap();
|
|
|
|
|
|
|
|
vec![sink_pad_template, src_pad_template]
|
|
|
|
});
|
|
|
|
|
|
|
|
PAD_TEMPLATES.as_ref()
|
|
|
|
}
|
|
|
|
|
2020-01-03 17:46:32 +00:00
|
|
|
fn change_state(
|
|
|
|
&self,
|
2020-11-14 17:09:42 +00:00
|
|
|
element: &Self::Type,
|
2020-01-03 17:46:32 +00:00
|
|
|
transition: gst::StateChange,
|
|
|
|
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
|
2022-02-21 17:43:46 +00:00
|
|
|
gst::trace!(CAT, obj: element, "Changing state {:?}", transition);
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-04-29 13:03:43 +00:00
|
|
|
if let gst::StateChange::ReadyToNull = transition {
|
2021-02-09 16:57:34 +00:00
|
|
|
self.unprepare(element);
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut success = self.parent_change_state(element, transition)?;
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
match transition {
|
|
|
|
gst::StateChange::ReadyToPaused => {
|
|
|
|
success = gst::StateChangeSuccess::NoPreroll;
|
|
|
|
}
|
|
|
|
gst::StateChange::PlayingToPaused => {
|
|
|
|
success = gst::StateChangeSuccess::NoPreroll;
|
|
|
|
}
|
|
|
|
_ => (),
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
Ok(success)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn request_new_pad(
|
|
|
|
&self,
|
2020-11-14 17:09:42 +00:00
|
|
|
element: &Self::Type,
|
2020-01-03 17:46:32 +00:00
|
|
|
templ: &gst::PadTemplate,
|
|
|
|
_name: Option<String>,
|
|
|
|
_caps: Option<&gst::Caps>,
|
|
|
|
) -> Option<gst::Pad> {
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
let mut pads = self.pads.lock().unwrap();
|
2020-01-29 19:18:15 +00:00
|
|
|
let sink_pad =
|
2021-07-30 10:53:35 +00:00
|
|
|
gst::Pad::from_template(templ, Some(format!("sink_{}", pads.pad_serial).as_str()));
|
2020-01-29 19:18:15 +00:00
|
|
|
pads.pad_serial += 1;
|
2020-01-03 17:46:32 +00:00
|
|
|
sink_pad.set_active(true).unwrap();
|
|
|
|
element.add_pad(&sink_pad).unwrap();
|
2020-04-29 13:03:43 +00:00
|
|
|
let sink_pad = PadSink::new(sink_pad, InputSelectorPadSinkHandler::default());
|
2020-01-03 17:46:32 +00:00
|
|
|
let ret = sink_pad.gst_pad().clone();
|
|
|
|
|
|
|
|
if state.active_sinkpad.is_none() {
|
|
|
|
state.active_sinkpad = Some(ret.clone());
|
2020-02-27 15:12:56 +00:00
|
|
|
state.switched_pad = true;
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
2020-02-27 14:34:44 +00:00
|
|
|
pads.sink_pads.insert(ret.clone(), sink_pad);
|
2020-03-19 09:29:05 +00:00
|
|
|
drop(pads);
|
|
|
|
drop(state);
|
|
|
|
|
2020-06-30 20:57:22 +00:00
|
|
|
let _ = element.post_message(gst::message::Latency::builder().src(element).build());
|
2020-02-27 14:34:44 +00:00
|
|
|
|
2020-01-03 17:46:32 +00:00
|
|
|
Some(ret)
|
|
|
|
}
|
|
|
|
|
2020-11-14 17:09:42 +00:00
|
|
|
fn release_pad(&self, element: &Self::Type, pad: &gst::Pad) {
|
2020-03-17 15:19:01 +00:00
|
|
|
let mut pads = self.pads.lock().unwrap();
|
2020-01-29 19:18:15 +00:00
|
|
|
let sink_pad = pads.sink_pads.remove(pad).unwrap();
|
2020-04-29 13:03:43 +00:00
|
|
|
drop(sink_pad);
|
2020-01-03 17:46:32 +00:00
|
|
|
element.remove_pad(pad).unwrap();
|
2020-03-19 09:29:05 +00:00
|
|
|
drop(pads);
|
|
|
|
|
2020-06-30 20:57:22 +00:00
|
|
|
let _ = element.post_message(gst::message::Latency::builder().src(element).build());
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
2020-06-02 17:31:58 +00:00
|
|
|
|
2020-11-14 17:09:42 +00:00
|
|
|
fn provide_clock(&self, _element: &Self::Type) -> Option<gst::Clock> {
|
2020-06-02 17:31:58 +00:00
|
|
|
Some(gst::SystemClock::obtain())
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|