2020-03-17 15:19:01 +00:00
|
|
|
// Copyright (C) 2020 Mathieu Duponchelle <mathieu@centricular.com>
|
2020-01-03 17:46:32 +00:00
|
|
|
//
|
|
|
|
// This library is free software; you can redistribute it and/or
|
|
|
|
// modify it under the terms of the GNU Library General Public
|
|
|
|
// License as published by the Free Software Foundation; either
|
|
|
|
// version 2 of the License, or (at your option) any later version.
|
|
|
|
//
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
// Library General Public License for more details.
|
|
|
|
//
|
|
|
|
// You should have received a copy of the GNU Library General Public
|
|
|
|
// License along with this library; if not, write to the
|
|
|
|
// Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
|
|
|
|
// Boston, MA 02110-1335, USA.
|
|
|
|
|
|
|
|
use futures::future::BoxFuture;
|
|
|
|
use futures::future::{abortable, AbortHandle};
|
|
|
|
use futures::prelude::*;
|
|
|
|
|
2020-07-26 15:33:14 +00:00
|
|
|
use glib::glib_object_subclass;
|
2020-01-03 17:46:32 +00:00
|
|
|
use glib::prelude::*;
|
|
|
|
use glib::subclass;
|
|
|
|
use glib::subclass::prelude::*;
|
|
|
|
|
|
|
|
use gst::prelude::*;
|
|
|
|
use gst::subclass::prelude::*;
|
2020-03-26 18:07:25 +00:00
|
|
|
use gst::{gst_debug, gst_log, gst_trace};
|
2020-01-03 17:46:32 +00:00
|
|
|
|
|
|
|
use lazy_static::lazy_static;
|
|
|
|
|
|
|
|
use std::collections::HashMap;
|
2020-03-17 15:19:01 +00:00
|
|
|
use std::sync::{Arc, Mutex};
|
2020-01-03 17:46:32 +00:00
|
|
|
use std::time::Duration;
|
|
|
|
use std::u32;
|
|
|
|
|
|
|
|
use crate::runtime::prelude::*;
|
2020-03-26 18:07:25 +00:00
|
|
|
use crate::runtime::{self, PadSink, PadSinkRef, PadSrc, PadSrcRef};
|
2020-01-03 17:46:32 +00:00
|
|
|
|
|
|
|
const DEFAULT_CONTEXT: &str = "";
|
|
|
|
const DEFAULT_CONTEXT_WAIT: u32 = 0;
|
|
|
|
|
|
|
|
#[derive(Debug, Clone)]
|
|
|
|
struct Settings {
|
|
|
|
context: String,
|
|
|
|
context_wait: u32,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for Settings {
|
|
|
|
fn default() -> Self {
|
|
|
|
Settings {
|
|
|
|
context: DEFAULT_CONTEXT.into(),
|
|
|
|
context_wait: DEFAULT_CONTEXT_WAIT,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static PROPERTIES: [subclass::Property; 3] = [
|
|
|
|
subclass::Property("context", |name| {
|
|
|
|
glib::ParamSpec::string(
|
|
|
|
name,
|
|
|
|
"Context",
|
|
|
|
"Context name to share threads with",
|
|
|
|
Some(DEFAULT_CONTEXT),
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
|
|
|
subclass::Property("context-wait", |name| {
|
|
|
|
glib::ParamSpec::uint(
|
|
|
|
name,
|
|
|
|
"Context Wait",
|
|
|
|
"Throttle poll loop to run at most once every this many ms",
|
|
|
|
0,
|
|
|
|
1000,
|
|
|
|
DEFAULT_CONTEXT_WAIT,
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
|
|
|
subclass::Property("active-pad", |name| {
|
|
|
|
glib::ParamSpec::object(
|
|
|
|
name,
|
|
|
|
"Active Pad",
|
|
|
|
"Currently active pad",
|
|
|
|
gst::Pad::static_type(),
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
|
|
|
];
|
|
|
|
|
|
|
|
#[derive(Debug)]
|
|
|
|
struct InputSelectorPadSinkHandlerInner {
|
|
|
|
segment: Option<gst::Segment>,
|
2020-02-27 14:34:44 +00:00
|
|
|
send_sticky: bool,
|
2020-01-03 17:46:32 +00:00
|
|
|
abort_handle: Option<AbortHandle>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for InputSelectorPadSinkHandlerInner {
|
|
|
|
fn default() -> Self {
|
|
|
|
InputSelectorPadSinkHandlerInner {
|
|
|
|
segment: None,
|
2020-02-27 14:34:44 +00:00
|
|
|
send_sticky: true,
|
2020-01-03 17:46:32 +00:00
|
|
|
abort_handle: None,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-04-29 13:03:43 +00:00
|
|
|
#[derive(Clone, Debug, Default)]
|
2020-01-03 17:46:32 +00:00
|
|
|
struct InputSelectorPadSinkHandler(Arc<Mutex<InputSelectorPadSinkHandlerInner>>);
|
|
|
|
|
|
|
|
impl InputSelectorPadSinkHandler {
|
|
|
|
/* Wait until specified time */
|
|
|
|
async fn sync(&self, element: &gst::Element, running_time: gst::ClockTime) {
|
2020-04-13 15:06:14 +00:00
|
|
|
let now = element.get_current_running_time();
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-10-19 15:03:10 +00:00
|
|
|
if let Some(delay) = running_time
|
|
|
|
.saturating_sub(now)
|
|
|
|
.and_then(|delay| delay.nseconds())
|
|
|
|
{
|
|
|
|
runtime::time::delay_for(Duration::from_nanos(delay)).await;
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
async fn handle_item(
|
|
|
|
&self,
|
2020-02-27 14:00:37 +00:00
|
|
|
pad: &PadSinkRef<'_>,
|
2020-01-03 17:46:32 +00:00
|
|
|
element: &gst::Element,
|
2020-02-27 15:12:56 +00:00
|
|
|
mut buffer: gst::Buffer,
|
2020-01-03 17:46:32 +00:00
|
|
|
) -> Result<gst::FlowSuccess, gst::FlowError> {
|
|
|
|
let inputselector = InputSelector::from_instance(element);
|
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
let (stickies, is_active, sync_future, switched_pad) = {
|
|
|
|
let mut state = inputselector.state.lock().unwrap();
|
|
|
|
let mut inner = self.0.lock().unwrap();
|
|
|
|
let mut stickies = vec![];
|
|
|
|
let mut sync_future = None;
|
|
|
|
let switched_pad = state.switched_pad;
|
|
|
|
|
|
|
|
if let Some(segment) = &inner.segment {
|
|
|
|
if let Some(segment) = segment.downcast_ref::<gst::format::Time>() {
|
|
|
|
let rtime = segment.to_running_time(buffer.get_pts());
|
|
|
|
let (sync_fut, abort_handle) = abortable(self.sync(&element, rtime));
|
|
|
|
inner.abort_handle = Some(abort_handle);
|
|
|
|
sync_future = Some(sync_fut.map_err(|_| gst::FlowError::Flushing));
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
let is_active = {
|
|
|
|
if state.active_sinkpad.as_ref() == Some(pad.gst_pad()) {
|
|
|
|
if inner.send_sticky || state.switched_pad {
|
|
|
|
pad.gst_pad().sticky_events_foreach(|event| {
|
|
|
|
stickies.push(event.clone());
|
|
|
|
Ok(Some(event))
|
|
|
|
});
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
inner.send_sticky = false;
|
|
|
|
state.switched_pad = false;
|
|
|
|
}
|
|
|
|
true
|
|
|
|
} else {
|
|
|
|
false
|
|
|
|
}
|
|
|
|
};
|
2020-02-27 15:12:56 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
(stickies, is_active, sync_future, switched_pad)
|
|
|
|
};
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
if let Some(sync_fut) = sync_future {
|
|
|
|
sync_fut.await?;
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
for event in stickies {
|
|
|
|
inputselector.src_pad.push_event(event).await;
|
|
|
|
}
|
2020-02-27 14:34:44 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
if is_active {
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Forwarding {:?}", buffer);
|
|
|
|
|
|
|
|
if switched_pad && !buffer.get_flags().contains(gst::BufferFlags::DISCONT) {
|
|
|
|
let buffer = buffer.make_mut();
|
|
|
|
buffer.set_flags(gst::BufferFlags::DISCONT);
|
2020-02-27 14:34:44 +00:00
|
|
|
}
|
|
|
|
|
2020-01-03 17:46:32 +00:00
|
|
|
inputselector.src_pad.push(buffer).await
|
|
|
|
} else {
|
|
|
|
Ok(gst::FlowSuccess::Ok)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl PadSinkHandler for InputSelectorPadSinkHandler {
|
|
|
|
type ElementImpl = InputSelector;
|
|
|
|
|
|
|
|
fn sink_chain(
|
|
|
|
&self,
|
2020-02-19 19:42:19 +00:00
|
|
|
pad: &PadSinkRef,
|
2020-01-03 17:46:32 +00:00
|
|
|
_inputselector: &InputSelector,
|
|
|
|
element: &gst::Element,
|
|
|
|
buffer: gst::Buffer,
|
|
|
|
) -> BoxFuture<'static, Result<gst::FlowSuccess, gst::FlowError>> {
|
|
|
|
let this = self.clone();
|
|
|
|
let element = element.clone();
|
|
|
|
let pad_weak = pad.downgrade();
|
|
|
|
async move {
|
|
|
|
let pad = pad_weak.upgrade().expect("PadSink no longer exists");
|
2020-02-27 14:00:37 +00:00
|
|
|
this.handle_item(&pad, &element, buffer).await
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
|
|
|
|
|
|
|
fn sink_chain_list(
|
|
|
|
&self,
|
2020-02-19 19:42:19 +00:00
|
|
|
pad: &PadSinkRef,
|
2020-01-03 17:46:32 +00:00
|
|
|
_inputselector: &InputSelector,
|
|
|
|
element: &gst::Element,
|
|
|
|
list: gst::BufferList,
|
|
|
|
) -> BoxFuture<'static, Result<gst::FlowSuccess, gst::FlowError>> {
|
2020-02-27 14:00:37 +00:00
|
|
|
let this = self.clone();
|
2020-01-03 17:46:32 +00:00
|
|
|
let element = element.clone();
|
|
|
|
let pad_weak = pad.downgrade();
|
|
|
|
async move {
|
|
|
|
let pad = pad_weak.upgrade().expect("PadSink no longer exists");
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handling buffer list {:?}", list);
|
2020-02-27 14:00:37 +00:00
|
|
|
// TODO: Ideally we would keep the list intact and forward it in one go
|
|
|
|
for buffer in list.iter_owned() {
|
|
|
|
this.handle_item(&pad, &element, buffer).await?;
|
|
|
|
}
|
|
|
|
|
|
|
|
Ok(gst::FlowSuccess::Ok)
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
fn sink_event_serialized(
|
2020-01-03 17:46:32 +00:00
|
|
|
&self,
|
2020-02-19 19:42:19 +00:00
|
|
|
_pad: &PadSinkRef,
|
2020-03-17 15:19:01 +00:00
|
|
|
_inputselector: &InputSelector,
|
2020-01-03 17:46:32 +00:00
|
|
|
_element: &gst::Element,
|
|
|
|
event: gst::Event,
|
2020-03-17 15:19:01 +00:00
|
|
|
) -> BoxFuture<'static, bool> {
|
|
|
|
let this = self.clone();
|
2020-02-27 14:34:44 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
async move {
|
|
|
|
let mut inner = this.0.lock().unwrap();
|
|
|
|
|
|
|
|
// Remember the segment for later use
|
2020-03-26 18:07:25 +00:00
|
|
|
if let gst::EventView::Segment(e) = event.view() {
|
|
|
|
inner.segment = Some(e.get_segment().clone());
|
2020-03-17 15:19:01 +00:00
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
// We sent sticky events together with the next buffer once it becomes
|
|
|
|
// the active pad.
|
|
|
|
//
|
|
|
|
// TODO: Other serialized events for the active pad can also be forwarded
|
|
|
|
// here, and sticky events could be forwarded directly. Needs forwarding of
|
|
|
|
// all other sticky events first!
|
|
|
|
if event.is_sticky() {
|
|
|
|
inner.send_sticky = true;
|
|
|
|
true
|
|
|
|
} else {
|
|
|
|
true
|
|
|
|
}
|
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
|
2020-03-17 15:19:01 +00:00
|
|
|
fn sink_event(
|
|
|
|
&self,
|
|
|
|
_pad: &PadSinkRef,
|
|
|
|
inputselector: &InputSelector,
|
|
|
|
_element: &gst::Element,
|
|
|
|
event: gst::Event,
|
|
|
|
) -> bool {
|
|
|
|
/* Drop all events for now */
|
2020-03-26 18:07:25 +00:00
|
|
|
if let gst::EventView::FlushStart(..) = event.view() {
|
|
|
|
/* Unblock downstream */
|
|
|
|
inputselector.src_pad.gst_pad().push_event(event.clone());
|
2020-03-17 15:19:01 +00:00
|
|
|
|
2020-03-26 18:07:25 +00:00
|
|
|
let mut inner = self.0.lock().unwrap();
|
2020-03-17 15:19:01 +00:00
|
|
|
|
2020-03-26 18:07:25 +00:00
|
|
|
if let Some(abort_handle) = inner.abort_handle.take() {
|
|
|
|
abort_handle.abort();
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
2020-03-17 15:19:01 +00:00
|
|
|
true
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn sink_query(
|
|
|
|
&self,
|
2020-02-19 19:42:19 +00:00
|
|
|
pad: &PadSinkRef,
|
2020-01-03 17:46:32 +00:00
|
|
|
inputselector: &InputSelector,
|
|
|
|
_element: &gst::Element,
|
|
|
|
query: &mut gst::QueryRef,
|
|
|
|
) -> bool {
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handling query {:?}", query);
|
|
|
|
|
|
|
|
if query.is_serialized() {
|
|
|
|
// FIXME: How can we do this (drops ALLOCATION and DRAIN)?
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Dropping serialized query {:?}", query);
|
|
|
|
false
|
|
|
|
} else {
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Forwarding query {:?}", query);
|
|
|
|
inputselector.src_pad.gst_pad().peer_query(query)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Clone, Debug)]
|
|
|
|
struct InputSelectorPadSrcHandler;
|
|
|
|
|
|
|
|
impl PadSrcHandler for InputSelectorPadSrcHandler {
|
|
|
|
type ElementImpl = InputSelector;
|
2020-03-17 15:19:01 +00:00
|
|
|
|
|
|
|
fn src_query(
|
|
|
|
&self,
|
|
|
|
pad: &PadSrcRef,
|
|
|
|
inputselector: &InputSelector,
|
|
|
|
_element: &gst::Element,
|
|
|
|
query: &mut gst::QueryRef,
|
|
|
|
) -> bool {
|
|
|
|
use gst::QueryView;
|
|
|
|
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handling {:?}", query);
|
|
|
|
|
|
|
|
match query.view_mut() {
|
|
|
|
QueryView::Latency(ref mut q) => {
|
|
|
|
let mut ret = true;
|
2020-03-19 09:29:05 +00:00
|
|
|
let mut min_latency = 0.into();
|
2020-10-19 15:03:10 +00:00
|
|
|
let mut max_latency = gst::ClockTime::none();
|
2020-03-19 09:29:05 +00:00
|
|
|
let pads = {
|
|
|
|
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 {
|
2020-03-19 09:29:05 +00:00
|
|
|
let (live, min, max) = peer_query.get_result();
|
|
|
|
if live {
|
2020-10-19 15:03:10 +00:00
|
|
|
min_latency = min.max(min_latency).unwrap_or(min_latency);
|
|
|
|
max_latency = max.min(max_latency).unwrap_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
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Debug)]
|
|
|
|
struct Pads {
|
|
|
|
pad_serial: u32,
|
|
|
|
sink_pads: HashMap<gst::Pad, PadSink>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for Pads {
|
|
|
|
fn default() -> Pads {
|
|
|
|
Pads {
|
2020-01-03 17:46:32 +00:00
|
|
|
pad_serial: 0,
|
|
|
|
sink_pads: HashMap::new(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Debug)]
|
|
|
|
struct InputSelector {
|
|
|
|
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
|
|
|
}
|
|
|
|
|
|
|
|
lazy_static! {
|
|
|
|
static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
|
|
|
|
"ts-input-selector",
|
|
|
|
gst::DebugColorFlags::empty(),
|
|
|
|
Some("Thread-sharing input selector"),
|
|
|
|
);
|
|
|
|
}
|
|
|
|
|
|
|
|
impl InputSelector {
|
2020-03-17 15:19:01 +00:00
|
|
|
fn unprepare(&self, element: &gst::Element) -> Result<(), ()> {
|
|
|
|
let mut state = self.state.lock().unwrap();
|
2020-01-03 17:46:32 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Unpreparing");
|
|
|
|
*state = State::default();
|
|
|
|
gst_debug!(CAT, obj: element, "Unprepared");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectSubclass for InputSelector {
|
|
|
|
const NAME: &'static str = "RsTsInputSelector";
|
|
|
|
type ParentType = gst::Element;
|
|
|
|
type Instance = gst::subclass::ElementInstanceStruct<Self>;
|
|
|
|
type Class = subclass::simple::ClassStruct<Self>;
|
|
|
|
|
|
|
|
glib_object_subclass!();
|
|
|
|
|
|
|
|
fn class_init(klass: &mut subclass::simple::ClassStruct<Self>) {
|
|
|
|
klass.set_metadata(
|
|
|
|
"Thread-sharing input selector",
|
|
|
|
"Generic",
|
|
|
|
"Simple input selector element",
|
|
|
|
"Mathieu Duponchelle <mathieu@centricular.com>",
|
|
|
|
);
|
|
|
|
|
|
|
|
let caps = gst::Caps::new_any();
|
|
|
|
|
|
|
|
let sink_pad_template = gst::PadTemplate::new(
|
|
|
|
"sink_%u",
|
|
|
|
gst::PadDirection::Sink,
|
|
|
|
gst::PadPresence::Request,
|
|
|
|
&caps,
|
|
|
|
)
|
|
|
|
.unwrap();
|
|
|
|
klass.add_pad_template(sink_pad_template);
|
|
|
|
|
|
|
|
let src_pad_template = gst::PadTemplate::new(
|
|
|
|
"src",
|
|
|
|
gst::PadDirection::Src,
|
|
|
|
gst::PadPresence::Always,
|
|
|
|
&caps,
|
|
|
|
)
|
|
|
|
.unwrap();
|
|
|
|
klass.add_pad_template(src_pad_template);
|
|
|
|
|
|
|
|
klass.install_properties(&PROPERTIES);
|
|
|
|
}
|
|
|
|
|
2020-06-16 08:56:48 +00:00
|
|
|
fn with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
|
2020-01-03 17:46:32 +00:00
|
|
|
Self {
|
2020-04-29 13:03:43 +00:00
|
|
|
src_pad: PadSrc::new(
|
2020-06-11 10:45:15 +00:00
|
|
|
gst::Pad::from_template(&klass.get_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 {
|
|
|
|
fn set_property(&self, _obj: &glib::Object, id: usize, value: &glib::Value) {
|
|
|
|
let prop = &PROPERTIES[id];
|
|
|
|
|
|
|
|
match *prop {
|
|
|
|
subclass::Property("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
|
|
|
|
.get()
|
|
|
|
.expect("type checked upstream")
|
|
|
|
.unwrap_or_else(|| "".into());
|
|
|
|
}
|
|
|
|
subclass::Property("context-wait", ..) => {
|
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_wait = value.get_some().expect("type checked upstream");
|
|
|
|
}
|
|
|
|
subclass::Property("active-pad", ..) => {
|
2020-02-27 14:34:44 +00:00
|
|
|
let pad = value.get::<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 {
|
2020-02-27 14:34:44 +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!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn get_property(&self, _obj: &glib::Object, id: usize) -> Result<glib::Value, ()> {
|
|
|
|
let prop = &PROPERTIES[id];
|
|
|
|
|
|
|
|
match *prop {
|
|
|
|
subclass::Property("context", ..) => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let settings = self.settings.lock().unwrap();
|
2020-01-03 17:46:32 +00:00
|
|
|
Ok(settings.context.to_value())
|
|
|
|
}
|
|
|
|
subclass::Property("context-wait", ..) => {
|
2020-03-17 15:19:01 +00:00
|
|
|
let settings = self.settings.lock().unwrap();
|
2020-01-03 17:46:32 +00:00
|
|
|
Ok(settings.context_wait.to_value())
|
|
|
|
}
|
|
|
|
subclass::Property("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();
|
|
|
|
Ok(active_pad.to_value())
|
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
fn constructed(&self, obj: &glib::Object) {
|
|
|
|
self.parent_constructed(obj);
|
|
|
|
|
|
|
|
let element = obj.downcast_ref::<gst::Element>().unwrap();
|
|
|
|
element.add_pad(self.src_pad.gst_pad()).unwrap();
|
2020-06-02 17:31:58 +00:00
|
|
|
element
|
|
|
|
.set_element_flags(gst::ElementFlags::PROVIDE_CLOCK | gst::ElementFlags::REQUIRE_CLOCK);
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ElementImpl for InputSelector {
|
|
|
|
fn change_state(
|
|
|
|
&self,
|
|
|
|
element: &gst::Element,
|
|
|
|
transition: gst::StateChange,
|
|
|
|
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
|
|
|
|
gst_trace!(CAT, obj: element, "Changing state {:?}", transition);
|
|
|
|
|
2020-04-29 13:03:43 +00:00
|
|
|
if let gst::StateChange::ReadyToNull = transition {
|
|
|
|
self.unprepare(element).map_err(|_| gst::StateChangeError)?;
|
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,
|
|
|
|
element: &gst::Element,
|
|
|
|
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 =
|
2020-06-11 10:45:15 +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)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn release_pad(&self, element: &gst::Element, 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
|
|
|
|
|
|
|
fn provide_clock(&self, _element: &gst::Element) -> Option<gst::Clock> {
|
|
|
|
Some(gst::SystemClock::obtain())
|
|
|
|
}
|
2020-01-03 17:46:32 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
|
|
|
|
gst::Element::register(
|
|
|
|
Some(plugin),
|
|
|
|
"ts-input-selector",
|
|
|
|
gst::Rank::None,
|
|
|
|
InputSelector::get_type(),
|
|
|
|
)
|
|
|
|
}
|