2018-03-27 17:06:25 +00:00
|
|
|
// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
|
|
|
|
//
|
|
|
|
// 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 glib;
|
|
|
|
use glib::prelude::*;
|
2018-12-06 11:03:04 +00:00
|
|
|
use glib::subclass;
|
|
|
|
use glib::subclass::prelude::*;
|
2018-03-27 17:06:25 +00:00
|
|
|
use gst;
|
|
|
|
use gst::prelude::*;
|
2018-12-06 11:03:04 +00:00
|
|
|
use gst::subclass::prelude::*;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
use std::collections::HashMap;
|
2018-04-03 16:14:00 +00:00
|
|
|
use std::collections::VecDeque;
|
2018-03-27 17:06:25 +00:00
|
|
|
use std::sync::{Arc, Mutex, Weak};
|
2018-06-30 16:24:38 +00:00
|
|
|
use std::{u32, u64};
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
use futures;
|
|
|
|
use futures::future;
|
|
|
|
use futures::task;
|
2018-04-05 09:49:12 +00:00
|
|
|
use futures::{Async, Future};
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
use tokio::executor;
|
|
|
|
|
|
|
|
use dataqueue::*;
|
2018-04-03 16:14:00 +00:00
|
|
|
use iocontext::*;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
lazy_static! {
|
|
|
|
static ref CONTEXTS: Mutex<HashMap<String, Weak<Mutex<SharedQueueInner>>>> =
|
|
|
|
Mutex::new(HashMap::new());
|
|
|
|
}
|
|
|
|
|
2019-02-21 18:12:09 +00:00
|
|
|
const DEFAULT_PROXY_CONTEXT: &str = "";
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
const DEFAULT_MAX_SIZE_BUFFERS: u32 = 200;
|
|
|
|
const DEFAULT_MAX_SIZE_BYTES: u32 = 1024 * 1024;
|
|
|
|
const DEFAULT_MAX_SIZE_TIME: u64 = gst::SECOND_VAL;
|
2019-02-21 18:12:09 +00:00
|
|
|
const DEFAULT_CONTEXT: &str = "";
|
2018-03-27 17:06:25 +00:00
|
|
|
const DEFAULT_CONTEXT_WAIT: u32 = 0;
|
|
|
|
|
|
|
|
#[derive(Debug, Clone)]
|
|
|
|
struct SettingsSink {
|
|
|
|
proxy_context: String,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for SettingsSink {
|
|
|
|
fn default() -> Self {
|
|
|
|
SettingsSink {
|
|
|
|
proxy_context: DEFAULT_PROXY_CONTEXT.into(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Debug, Clone)]
|
|
|
|
struct SettingsSrc {
|
|
|
|
max_size_buffers: u32,
|
|
|
|
max_size_bytes: u32,
|
|
|
|
max_size_time: u64,
|
|
|
|
context: String,
|
|
|
|
context_wait: u32,
|
|
|
|
proxy_context: String,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for SettingsSrc {
|
|
|
|
fn default() -> Self {
|
|
|
|
SettingsSrc {
|
|
|
|
max_size_buffers: DEFAULT_MAX_SIZE_BUFFERS,
|
|
|
|
max_size_bytes: DEFAULT_MAX_SIZE_BYTES,
|
|
|
|
max_size_time: DEFAULT_MAX_SIZE_TIME,
|
|
|
|
context: DEFAULT_CONTEXT.into(),
|
|
|
|
context_wait: DEFAULT_CONTEXT_WAIT,
|
|
|
|
proxy_context: DEFAULT_PROXY_CONTEXT.into(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
static PROPERTIES_SRC: [subclass::Property; 6] = [
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("max-size-buffers", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::uint(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Max Size Buffers",
|
|
|
|
"Maximum number of buffers to queue (0=unlimited)",
|
|
|
|
0,
|
|
|
|
u32::MAX,
|
|
|
|
DEFAULT_MAX_SIZE_BUFFERS,
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("max-size-bytes", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::uint(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Max Size Bytes",
|
|
|
|
"Maximum number of bytes to queue (0=unlimited)",
|
|
|
|
0,
|
|
|
|
u32::MAX,
|
|
|
|
DEFAULT_MAX_SIZE_BYTES,
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("max-size-time", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::uint64(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Max Size Time",
|
|
|
|
"Maximum number of nanoseconds to queue (0=unlimited)",
|
|
|
|
0,
|
|
|
|
u64::MAX - 1,
|
|
|
|
DEFAULT_MAX_SIZE_TIME,
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("context", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::string(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Context",
|
|
|
|
"Context name to share threads with",
|
|
|
|
Some(DEFAULT_CONTEXT),
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("context-wait", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::uint(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Context Wait",
|
|
|
|
"Throttle poll loop to run at most once every this many ms",
|
|
|
|
0,
|
|
|
|
1000,
|
|
|
|
DEFAULT_CONTEXT_WAIT,
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
2018-12-18 09:23:45 +00:00
|
|
|
subclass::Property("proxy-context", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::string(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-12-06 11:03:04 +00:00
|
|
|
"Proxy Context",
|
|
|
|
"Context name of the proxy to share with",
|
|
|
|
Some(DEFAULT_PROXY_CONTEXT),
|
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
}),
|
|
|
|
];
|
|
|
|
|
2018-12-18 09:23:45 +00:00
|
|
|
static PROPERTIES_SINK: [subclass::Property; 1] = [subclass::Property("proxy-context", |name| {
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamSpec::string(
|
2018-12-18 09:23:45 +00:00
|
|
|
name,
|
2018-03-27 17:06:25 +00:00
|
|
|
"Proxy Context",
|
|
|
|
"Context name of the proxy to share with",
|
|
|
|
Some(DEFAULT_PROXY_CONTEXT),
|
2018-12-06 11:03:04 +00:00
|
|
|
glib::ParamFlags::READWRITE,
|
|
|
|
)
|
|
|
|
})];
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
// TODO: Refactor into a Sender and Receiver instead of the have_ booleans
|
|
|
|
|
|
|
|
struct SharedQueue(Arc<Mutex<SharedQueueInner>>, bool);
|
|
|
|
|
|
|
|
impl SharedQueue {
|
|
|
|
fn get(name: &str, as_sink: bool) -> Option<Self> {
|
|
|
|
let mut contexts = CONTEXTS.lock().unwrap();
|
|
|
|
|
|
|
|
let mut queue = None;
|
|
|
|
if let Some(context) = contexts.get(name) {
|
|
|
|
if let Some(context) = context.upgrade() {
|
|
|
|
{
|
|
|
|
let mut inner = context.lock().unwrap();
|
|
|
|
if (inner.have_sink && as_sink) || (inner.have_src && !as_sink) {
|
|
|
|
return None;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
let context = SharedQueue(context, as_sink);
|
|
|
|
{
|
|
|
|
let mut inner = context.0.lock().unwrap();
|
|
|
|
if as_sink {
|
|
|
|
inner.have_sink = true;
|
|
|
|
} else {
|
|
|
|
inner.have_src = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
queue = Some(context);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if queue.is_none() {
|
|
|
|
let inner = Arc::new(Mutex::new(SharedQueueInner {
|
|
|
|
name: name.into(),
|
|
|
|
queue: None,
|
2019-01-11 23:45:05 +00:00
|
|
|
last_res: Err(gst::FlowError::Flushing),
|
2018-03-27 17:06:25 +00:00
|
|
|
pending_queue: None,
|
|
|
|
pending_future_cancel: None,
|
|
|
|
have_sink: as_sink,
|
|
|
|
have_src: !as_sink,
|
|
|
|
}));
|
|
|
|
|
|
|
|
contexts.insert(name.into(), Arc::downgrade(&inner));
|
|
|
|
|
|
|
|
queue = Some(SharedQueue(inner, as_sink));
|
|
|
|
}
|
|
|
|
|
|
|
|
queue
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Drop for SharedQueue {
|
|
|
|
fn drop(&mut self) {
|
|
|
|
if self.1 {
|
|
|
|
let mut inner = self.0.lock().unwrap();
|
|
|
|
assert!(inner.have_sink);
|
|
|
|
inner.have_sink = false;
|
2018-05-16 14:32:35 +00:00
|
|
|
if let Some((Some(task), _, _)) = inner.pending_queue.take() {
|
2018-03-27 17:06:25 +00:00
|
|
|
task.notify();
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
let mut inner = self.0.lock().unwrap();
|
|
|
|
assert!(inner.have_src);
|
|
|
|
inner.have_src = false;
|
|
|
|
let _ = inner.queue.take();
|
|
|
|
let _ = inner.pending_future_cancel.take();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct SharedQueueInner {
|
|
|
|
name: String,
|
|
|
|
queue: Option<DataQueue>,
|
2019-01-11 23:45:05 +00:00
|
|
|
last_res: Result<gst::FlowSuccess, gst::FlowError>,
|
2018-05-16 14:32:35 +00:00
|
|
|
pending_queue: Option<(Option<task::Task>, bool, VecDeque<DataQueueItem>)>,
|
2018-03-27 17:06:25 +00:00
|
|
|
pending_future_cancel: Option<futures::sync::oneshot::Sender<()>>,
|
|
|
|
have_sink: bool,
|
|
|
|
have_src: bool,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Drop for SharedQueueInner {
|
|
|
|
fn drop(&mut self) {
|
|
|
|
let mut contexts = CONTEXTS.lock().unwrap();
|
|
|
|
contexts.remove(&self.name);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct StateSrc {
|
|
|
|
io_context: Option<IOContext>,
|
|
|
|
pending_future_id: Option<PendingFutureId>,
|
|
|
|
queue: Option<SharedQueue>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for StateSrc {
|
|
|
|
fn default() -> StateSrc {
|
|
|
|
StateSrc {
|
|
|
|
io_context: None,
|
|
|
|
pending_future_id: None,
|
|
|
|
queue: None,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct StateSink {
|
|
|
|
io_context: Option<IOContext>,
|
|
|
|
pending_future_id: Option<PendingFutureId>,
|
|
|
|
queue: Option<SharedQueue>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Default for StateSink {
|
|
|
|
fn default() -> StateSink {
|
|
|
|
StateSink {
|
|
|
|
io_context: None,
|
|
|
|
pending_future_id: None,
|
|
|
|
queue: None,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ProxySink {
|
|
|
|
cat: gst::DebugCategory,
|
|
|
|
#[allow(unused)]
|
|
|
|
sink_pad: gst::Pad,
|
|
|
|
state: Mutex<StateSink>,
|
|
|
|
settings: Mutex<SettingsSink>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ProxySink {
|
|
|
|
fn enqueue_item(
|
|
|
|
&self,
|
|
|
|
_pad: &gst::Pad,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
item: DataQueueItem,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::FlowSuccess, gst::FlowError> {
|
2018-03-27 17:06:25 +00:00
|
|
|
let wait_future = {
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let StateSink {
|
|
|
|
ref queue,
|
|
|
|
ref io_context,
|
|
|
|
pending_future_id,
|
|
|
|
..
|
|
|
|
} = *state;
|
2019-01-11 23:45:05 +00:00
|
|
|
let queue = queue.as_ref().ok_or(gst::FlowError::Error)?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
let mut queue = queue.0.lock().unwrap();
|
|
|
|
|
2018-05-17 08:59:04 +00:00
|
|
|
let item = {
|
|
|
|
let SharedQueueInner {
|
|
|
|
ref mut pending_queue,
|
|
|
|
ref queue,
|
|
|
|
..
|
|
|
|
} = *queue;
|
|
|
|
|
|
|
|
match (pending_queue, queue) {
|
|
|
|
(None, Some(ref queue)) => queue.push(item),
|
|
|
|
(Some((_, false, ref mut items)), Some(ref queue)) => {
|
|
|
|
let mut failed_item = None;
|
|
|
|
while let Some(item) = items.pop_front() {
|
|
|
|
if let Err(item) = queue.push(item) {
|
|
|
|
failed_item = Some(item);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if let Some(failed_item) = failed_item {
|
|
|
|
items.push_front(failed_item);
|
|
|
|
|
|
|
|
Err(item)
|
|
|
|
} else {
|
|
|
|
queue.push(item)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
_ => Err(item),
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
if let Err(item) = item {
|
2018-05-16 14:32:35 +00:00
|
|
|
if queue
|
|
|
|
.pending_queue
|
|
|
|
.as_ref()
|
|
|
|
.map(|(_, scheduled, _)| !scheduled)
|
|
|
|
.unwrap_or(true)
|
|
|
|
{
|
|
|
|
if queue.pending_queue.is_none() {
|
|
|
|
queue.pending_queue = Some((None, false, VecDeque::new()));
|
|
|
|
}
|
|
|
|
|
|
|
|
let schedule_now = match item {
|
|
|
|
DataQueueItem::Event(ref ev) if ev.get_type() != gst::EventType::Eos => {
|
|
|
|
false
|
|
|
|
}
|
|
|
|
_ => true,
|
|
|
|
};
|
|
|
|
|
|
|
|
queue.pending_queue.as_mut().unwrap().2.push_back(item);
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
gst_log!(
|
|
|
|
self.cat,
|
|
|
|
obj: element,
|
|
|
|
"Proxy is full - Pushing first item on pending queue"
|
|
|
|
);
|
|
|
|
|
2018-05-16 14:32:35 +00:00
|
|
|
if schedule_now {
|
|
|
|
gst_log!(self.cat, obj: element, "Scheduling pending queue now");
|
|
|
|
|
|
|
|
queue.pending_queue.as_mut().unwrap().1 = true;
|
|
|
|
|
|
|
|
let element_clone = element.clone();
|
|
|
|
let future = future::poll_fn(move || {
|
2018-12-06 11:03:04 +00:00
|
|
|
let sink = Self::from_instance(&element_clone);
|
2018-05-16 14:32:35 +00:00
|
|
|
let state = sink.state.lock().unwrap();
|
|
|
|
|
|
|
|
gst_log!(
|
|
|
|
sink.cat,
|
|
|
|
obj: &element_clone,
|
|
|
|
"Trying to empty pending queue"
|
|
|
|
);
|
|
|
|
|
|
|
|
let mut queue = match state.queue {
|
|
|
|
Some(ref queue) => queue.0.lock().unwrap(),
|
|
|
|
None => {
|
|
|
|
return Ok(Async::Ready(()));
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
2018-05-16 14:32:35 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
let SharedQueueInner {
|
|
|
|
ref mut pending_queue,
|
|
|
|
ref queue,
|
|
|
|
..
|
|
|
|
} = *queue;
|
|
|
|
|
|
|
|
let res = if let Some((ref mut task, _, ref mut items)) = *pending_queue
|
|
|
|
{
|
2019-02-21 18:12:09 +00:00
|
|
|
if let Some(ref queue) = queue {
|
2018-05-16 14:32:35 +00:00
|
|
|
let mut failed_item = None;
|
2018-05-17 08:57:50 +00:00
|
|
|
while let Some(item) = items.pop_front() {
|
2018-05-16 14:32:35 +00:00
|
|
|
if let Err(item) = queue.push(item) {
|
|
|
|
failed_item = Some(item);
|
|
|
|
}
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2018-05-17 08:57:50 +00:00
|
|
|
if let Some(failed_item) = failed_item {
|
|
|
|
items.push_front(failed_item);
|
2018-05-16 14:32:35 +00:00
|
|
|
*task = Some(task::current());
|
|
|
|
gst_log!(
|
|
|
|
sink.cat,
|
|
|
|
obj: &element_clone,
|
|
|
|
"Waiting for more queue space"
|
|
|
|
);
|
|
|
|
Ok(Async::NotReady)
|
|
|
|
} else {
|
|
|
|
gst_log!(
|
|
|
|
sink.cat,
|
|
|
|
obj: &element_clone,
|
|
|
|
"Pending queue is empty now"
|
|
|
|
);
|
|
|
|
Ok(Async::Ready(()))
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
} else {
|
|
|
|
gst_log!(
|
|
|
|
sink.cat,
|
|
|
|
obj: &element_clone,
|
2018-05-16 14:32:35 +00:00
|
|
|
"Waiting for queue to be allocated"
|
2018-03-27 17:06:25 +00:00
|
|
|
);
|
2018-05-16 14:32:35 +00:00
|
|
|
Ok(Async::NotReady)
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
gst_log!(
|
|
|
|
sink.cat,
|
|
|
|
obj: &element_clone,
|
2018-05-16 14:32:35 +00:00
|
|
|
"Flushing, dropping pending queue"
|
2018-03-27 17:06:25 +00:00
|
|
|
);
|
2018-05-16 14:32:35 +00:00
|
|
|
Ok(Async::Ready(()))
|
|
|
|
};
|
|
|
|
|
|
|
|
if res == Ok(Async::Ready(())) {
|
|
|
|
*pending_queue = None;
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2018-05-16 14:32:35 +00:00
|
|
|
res
|
|
|
|
});
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2018-05-16 14:32:35 +00:00
|
|
|
if let (Some(io_context), Some(pending_future_id)) =
|
|
|
|
(io_context.as_ref(), pending_future_id.as_ref())
|
|
|
|
{
|
|
|
|
io_context.add_pending_future(*pending_future_id, future);
|
|
|
|
None
|
|
|
|
} else {
|
|
|
|
Some(future)
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
gst_log!(self.cat, obj: element, "Scheduling pending queue later");
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
None
|
|
|
|
}
|
|
|
|
} else {
|
2018-05-16 14:32:35 +00:00
|
|
|
queue.pending_queue.as_mut().unwrap().2.push_back(item);
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
None
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
None
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
if let Some(wait_future) = wait_future {
|
|
|
|
gst_log!(self.cat, obj: element, "Blocking until queue becomes empty");
|
2019-01-11 23:45:05 +00:00
|
|
|
executor::current_thread::block_on_all(wait_future).map_err(|_| {
|
|
|
|
gst_element_error!(
|
|
|
|
element,
|
|
|
|
gst::StreamError::Failed,
|
|
|
|
["failed to wait for queue to become empty again"]
|
|
|
|
);
|
|
|
|
gst::FlowError::Error
|
|
|
|
})?;
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let queue = state.queue.as_ref().unwrap();
|
2019-01-11 23:45:05 +00:00
|
|
|
let res = queue.0.lock().unwrap().last_res;
|
|
|
|
res
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
fn sink_chain(
|
|
|
|
&self,
|
|
|
|
pad: &gst::Pad,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
buffer: gst::Buffer,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::FlowSuccess, gst::FlowError> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_log!(self.cat, obj: pad, "Handling buffer {:?}", buffer);
|
|
|
|
self.enqueue_item(pad, element, DataQueueItem::Buffer(buffer))
|
|
|
|
}
|
|
|
|
|
|
|
|
fn sink_chain_list(
|
|
|
|
&self,
|
|
|
|
pad: &gst::Pad,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
list: gst::BufferList,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::FlowSuccess, gst::FlowError> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_log!(self.cat, obj: pad, "Handling buffer list {:?}", list);
|
|
|
|
self.enqueue_item(pad, element, DataQueueItem::BufferList(list))
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn sink_event(&self, pad: &gst::Pad, element: &gst::Element, event: gst::Event) -> bool {
|
2018-03-27 17:06:25 +00:00
|
|
|
use gst::EventView;
|
|
|
|
|
|
|
|
gst_log!(self.cat, obj: pad, "Handling event {:?}", event);
|
|
|
|
|
|
|
|
match event.view() {
|
2018-04-05 10:36:58 +00:00
|
|
|
EventView::Eos(..) => {
|
|
|
|
let _ = element.post_message(&gst::Message::new_eos().src(Some(element)).build());
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
EventView::FlushStart(..) => {
|
|
|
|
let _ = self.stop(element);
|
|
|
|
}
|
|
|
|
EventView::FlushStop(..) => {
|
2019-01-11 23:45:05 +00:00
|
|
|
let (res, state, pending) = element.get_state(0.into());
|
|
|
|
if res == Ok(gst::StateChangeSuccess::Success) && state == gst::State::Paused
|
|
|
|
|| res == Ok(gst::StateChangeSuccess::Async) && pending == gst::State::Paused
|
2018-03-27 17:06:25 +00:00
|
|
|
{
|
|
|
|
let _ = self.start(element);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EventView::CustomDownstreamSticky(e) => {
|
|
|
|
let s = e.get_structure().unwrap();
|
|
|
|
if s.get_name() == "ts-io-context" {
|
|
|
|
let mut state = self.state.lock().unwrap();
|
2018-11-29 19:01:02 +00:00
|
|
|
let io_context = s.get::<&IOContext>("io-context").unwrap();
|
|
|
|
let pending_future_id = s.get::<&PendingFutureId>("pending-future-id").unwrap();
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
gst_debug!(
|
|
|
|
self.cat,
|
|
|
|
obj: element,
|
|
|
|
"Got upstream pending future id {:?}",
|
|
|
|
pending_future_id
|
|
|
|
);
|
|
|
|
|
|
|
|
state.io_context = Some(io_context.clone());
|
|
|
|
state.pending_future_id = Some(*pending_future_id);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
_ => (),
|
|
|
|
};
|
|
|
|
|
|
|
|
gst_log!(self.cat, obj: pad, "Queuing event {:?}", event);
|
|
|
|
let _ = self.enqueue_item(pad, element, DataQueueItem::Event(event));
|
|
|
|
true
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn sink_query(
|
|
|
|
&self,
|
|
|
|
pad: &gst::Pad,
|
|
|
|
element: &gst::Element,
|
|
|
|
query: &mut gst::QueryRef,
|
|
|
|
) -> bool {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_log!(self.cat, obj: pad, "Handling query {:?}", query);
|
|
|
|
|
2018-05-10 07:53:07 +00:00
|
|
|
pad.query_default(element, query)
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn prepare(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Preparing");
|
|
|
|
|
|
|
|
let settings = self.settings.lock().unwrap().clone();
|
|
|
|
|
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
|
|
|
|
state.queue = match SharedQueue::get(&settings.proxy_context, true) {
|
|
|
|
Some(queue) => Some(queue),
|
|
|
|
None => {
|
|
|
|
return Err(gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Failed to create get queue"]
|
|
|
|
));
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Prepared");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn unprepare(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Unpreparing");
|
|
|
|
|
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
*state = StateSink::default();
|
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Unprepared");
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn start(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Starting");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Ok(gst::FlowSuccess::Ok);
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Started");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn stop(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Stopping");
|
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
|
|
|
|
state.io_context = None;
|
|
|
|
state.pending_future_id = None;
|
|
|
|
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
|
|
|
|
2018-05-16 14:32:35 +00:00
|
|
|
if let Some((Some(task), _, _)) = queue.pending_queue.take() {
|
2018-03-27 17:06:25 +00:00
|
|
|
task.notify();
|
|
|
|
}
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Err(gst::FlowError::Flushing);
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Stopped");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ObjectSubclass for ProxySink {
|
|
|
|
const NAME: &'static str = "RsTsProxySink";
|
|
|
|
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 proxy sink",
|
|
|
|
"Sink/Generic",
|
|
|
|
"Thread-sharing proxy sink",
|
|
|
|
"Sebastian Dröge <sebastian@centricular.com>",
|
|
|
|
);
|
|
|
|
|
|
|
|
let caps = gst::Caps::new_any();
|
|
|
|
|
|
|
|
let sink_pad_template = gst::PadTemplate::new(
|
|
|
|
"sink",
|
|
|
|
gst::PadDirection::Sink,
|
|
|
|
gst::PadPresence::Always,
|
|
|
|
&caps,
|
2019-01-29 15:26:40 +00:00
|
|
|
)
|
|
|
|
.unwrap();
|
2018-12-06 11:03:04 +00:00
|
|
|
klass.add_pad_template(sink_pad_template);
|
|
|
|
|
|
|
|
klass.install_properties(&PROPERTIES_SINK);
|
|
|
|
}
|
|
|
|
|
|
|
|
fn new_with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
|
|
|
|
let templ = klass.get_pad_template("sink").unwrap();
|
|
|
|
let sink_pad = gst::Pad::new_from_template(&templ, "sink");
|
|
|
|
|
|
|
|
sink_pad.set_chain_function(|pad, parent, buffer| {
|
|
|
|
ProxySink::catch_panic_pad_function(
|
|
|
|
parent,
|
2019-01-11 23:45:05 +00:00
|
|
|
|| Err(gst::FlowError::Error),
|
2018-12-06 11:03:04 +00:00
|
|
|
|queue, element| queue.sink_chain(pad, element, buffer),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
sink_pad.set_chain_list_function(|pad, parent, list| {
|
|
|
|
ProxySink::catch_panic_pad_function(
|
|
|
|
parent,
|
2019-01-11 23:45:05 +00:00
|
|
|
|| Err(gst::FlowError::Error),
|
2018-12-06 11:03:04 +00:00
|
|
|
|queue, element| queue.sink_chain_list(pad, element, list),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
sink_pad.set_event_function(|pad, parent, event| {
|
|
|
|
ProxySink::catch_panic_pad_function(
|
|
|
|
parent,
|
|
|
|
|| false,
|
|
|
|
|queue, element| queue.sink_event(pad, element, event),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
sink_pad.set_query_function(|pad, parent, query| {
|
|
|
|
ProxySink::catch_panic_pad_function(
|
|
|
|
parent,
|
|
|
|
|| false,
|
|
|
|
|queue, element| queue.sink_query(pad, element, query),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
|
|
|
|
Self {
|
|
|
|
cat: gst::DebugCategory::new(
|
|
|
|
"ts-proxysink",
|
|
|
|
gst::DebugColorFlags::empty(),
|
|
|
|
"Thread-sharing proxy sink",
|
|
|
|
),
|
2019-02-21 18:12:09 +00:00
|
|
|
sink_pad,
|
2018-12-06 11:03:04 +00:00
|
|
|
state: Mutex::new(StateSink::default()),
|
|
|
|
settings: Mutex::new(SettingsSink::default()),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectImpl for ProxySink {
|
|
|
|
glib_object_impl!();
|
|
|
|
|
|
|
|
fn set_property(&self, _obj: &glib::Object, id: usize, value: &glib::Value) {
|
|
|
|
let prop = &PROPERTIES_SINK[id];
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("proxy-context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.proxy_context = value.get().unwrap_or_else(|| "".into());
|
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn get_property(&self, _obj: &glib::Object, id: usize) -> Result<glib::Value, ()> {
|
|
|
|
let prop = &PROPERTIES_SINK[id];
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("proxy-context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.proxy_context.to_value())
|
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
|
|
|
|
fn constructed(&self, obj: &glib::Object) {
|
|
|
|
self.parent_constructed(obj);
|
|
|
|
|
|
|
|
let element = obj.downcast_ref::<gst::Element>().unwrap();
|
|
|
|
element.add_pad(&self.sink_pad).unwrap();
|
|
|
|
|
|
|
|
::set_element_flags(element, gst::ElementFlags::SINK);
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ElementImpl for ProxySink {
|
2018-03-27 17:06:25 +00:00
|
|
|
fn change_state(
|
|
|
|
&self,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
transition: gst::StateChange,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_trace!(self.cat, obj: element, "Changing state {:?}", transition);
|
|
|
|
|
|
|
|
match transition {
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChange::NullToReady => {
|
|
|
|
self.prepare(element).map_err(|err| {
|
2018-03-27 17:06:25 +00:00
|
|
|
element.post_error_message(&err);
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChangeError
|
|
|
|
})?;
|
|
|
|
}
|
|
|
|
gst::StateChange::PausedToReady => {
|
|
|
|
self.stop(element).map_err(|_| gst::StateChangeError)?;
|
|
|
|
}
|
|
|
|
gst::StateChange::ReadyToNull => {
|
|
|
|
self.unprepare(element).map_err(|_| gst::StateChangeError)?;
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
let success = self.parent_change_state(element, transition)?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
if transition == gst::StateChange::ReadyToPaused {
|
|
|
|
self.start(element).map_err(|_| gst::StateChangeError)?;
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
Ok(success)
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ProxySrc {
|
|
|
|
cat: gst::DebugCategory,
|
|
|
|
src_pad: gst::Pad,
|
|
|
|
state: Mutex<StateSrc>,
|
|
|
|
settings: Mutex<SettingsSrc>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ProxySrc {
|
|
|
|
fn create_io_context_event(state: &StateSrc) -> Option<gst::Event> {
|
|
|
|
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
|
|
|
|
(&state.pending_future_id, &state.io_context)
|
|
|
|
{
|
|
|
|
let s = gst::Structure::new(
|
|
|
|
"ts-io-context",
|
|
|
|
&[
|
2018-11-29 19:01:02 +00:00
|
|
|
("io-context", &io_context),
|
|
|
|
("pending-future-id", &*pending_future_id),
|
2018-03-27 17:06:25 +00:00
|
|
|
],
|
|
|
|
);
|
|
|
|
Some(gst::Event::new_custom_downstream_sticky(s).build())
|
|
|
|
} else {
|
|
|
|
None
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn src_event(&self, pad: &gst::Pad, element: &gst::Element, event: gst::Event) -> bool {
|
2018-03-27 17:06:25 +00:00
|
|
|
use gst::EventView;
|
|
|
|
|
|
|
|
gst_log!(self.cat, obj: pad, "Handling event {:?}", event);
|
|
|
|
|
|
|
|
let ret = match event.view() {
|
|
|
|
EventView::FlushStart(..) => {
|
|
|
|
let _ = self.stop(element);
|
|
|
|
true
|
|
|
|
}
|
|
|
|
EventView::FlushStop(..) => {
|
2019-01-11 23:45:05 +00:00
|
|
|
let (res, state, pending) = element.get_state(0.into());
|
|
|
|
if res == Ok(gst::StateChangeSuccess::Success) && state == gst::State::Playing
|
|
|
|
|| res == Ok(gst::StateChangeSuccess::Async) && pending == gst::State::Playing
|
2018-03-27 17:06:25 +00:00
|
|
|
{
|
|
|
|
let _ = self.start(element);
|
|
|
|
}
|
|
|
|
true
|
|
|
|
}
|
|
|
|
EventView::Reconfigure(..) => true,
|
|
|
|
EventView::Latency(..) => true,
|
|
|
|
_ => false,
|
|
|
|
};
|
|
|
|
|
|
|
|
if ret {
|
|
|
|
gst_log!(self.cat, obj: pad, "Handled event {:?}", event);
|
|
|
|
} else {
|
|
|
|
gst_log!(self.cat, obj: pad, "Didn't handle event {:?}", event);
|
|
|
|
}
|
|
|
|
|
|
|
|
ret
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn src_query(
|
|
|
|
&self,
|
|
|
|
pad: &gst::Pad,
|
|
|
|
_element: &gst::Element,
|
|
|
|
query: &mut gst::QueryRef,
|
|
|
|
) -> bool {
|
2018-03-27 17:06:25 +00:00
|
|
|
use gst::QueryView;
|
|
|
|
|
|
|
|
gst_log!(self.cat, obj: pad, "Handling query {:?}", query);
|
|
|
|
let ret = match query.view_mut() {
|
|
|
|
QueryView::Latency(ref mut q) => {
|
|
|
|
q.set(true, 0.into(), 0.into());
|
|
|
|
true
|
|
|
|
}
|
|
|
|
QueryView::Scheduling(ref mut q) => {
|
|
|
|
q.set(gst::SchedulingFlags::SEQUENTIAL, 1, -1, 0);
|
|
|
|
q.add_scheduling_modes(&[gst::PadMode::Push]);
|
|
|
|
true
|
|
|
|
}
|
|
|
|
QueryView::Caps(ref mut q) => {
|
|
|
|
let caps = if let Some(ref caps) = self.src_pad.get_current_caps() {
|
|
|
|
q.get_filter()
|
|
|
|
.map(|f| f.intersect_with_mode(caps, gst::CapsIntersectMode::First))
|
2019-02-21 18:12:09 +00:00
|
|
|
.unwrap_or_else(|| caps.clone())
|
2018-03-27 17:06:25 +00:00
|
|
|
} else {
|
|
|
|
q.get_filter()
|
|
|
|
.map(|f| f.to_owned())
|
2019-02-21 18:12:09 +00:00
|
|
|
.unwrap_or_else(|| gst::Caps::new_any())
|
2018-03-27 17:06:25 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
q.set_result(&caps);
|
|
|
|
|
|
|
|
true
|
|
|
|
}
|
|
|
|
_ => false,
|
|
|
|
};
|
|
|
|
|
|
|
|
if ret {
|
|
|
|
gst_log!(self.cat, obj: pad, "Handled query {:?}", query);
|
|
|
|
} else {
|
|
|
|
gst_log!(self.cat, obj: pad, "Didn't handle query {:?}", query);
|
|
|
|
}
|
|
|
|
ret
|
|
|
|
}
|
|
|
|
|
|
|
|
fn push_item(
|
|
|
|
&self,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
item: DataQueueItem,
|
|
|
|
) -> future::Either<
|
|
|
|
Box<Future<Item = (), Error = gst::FlowError> + Send + 'static>,
|
|
|
|
future::FutureResult<(), gst::FlowError>,
|
|
|
|
> {
|
|
|
|
let event = {
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
2018-05-16 14:32:35 +00:00
|
|
|
if let Some((Some(ref task), _, _)) = queue.pending_queue {
|
2018-03-27 17:06:25 +00:00
|
|
|
task.notify();
|
|
|
|
}
|
|
|
|
|
|
|
|
if self.src_pad.check_reconfigure() {
|
|
|
|
Self::create_io_context_event(&state)
|
|
|
|
} else {
|
|
|
|
None
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
if let Some(event) = event {
|
|
|
|
self.src_pad.push_event(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
let res = match item {
|
|
|
|
DataQueueItem::Buffer(buffer) => {
|
|
|
|
gst_log!(self.cat, obj: element, "Forwarding buffer {:?}", buffer);
|
2019-01-11 23:45:05 +00:00
|
|
|
self.src_pad.push(buffer).map(|_| ())
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
DataQueueItem::BufferList(list) => {
|
|
|
|
gst_log!(self.cat, obj: element, "Forwarding buffer list {:?}", list);
|
2019-01-11 23:45:05 +00:00
|
|
|
self.src_pad.push_list(list).map(|_| ())
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
DataQueueItem::Event(event) => {
|
|
|
|
use gst::EventView;
|
|
|
|
|
|
|
|
let mut new_event = None;
|
|
|
|
match event.view() {
|
|
|
|
EventView::CustomDownstreamSticky(e) => {
|
|
|
|
let s = e.get_structure().unwrap();
|
|
|
|
if s.get_name() == "ts-io-context" {
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
new_event = Self::create_io_context_event(&state);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
|
|
|
match new_event {
|
|
|
|
Some(event) => {
|
|
|
|
gst_log!(self.cat, obj: element, "Forwarding new event {:?}", event);
|
|
|
|
self.src_pad.push_event(event);
|
|
|
|
}
|
|
|
|
None => {
|
|
|
|
gst_log!(self.cat, obj: element, "Forwarding event {:?}", event);
|
|
|
|
self.src_pad.push_event(event);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
let res = match res {
|
|
|
|
Ok(_) => {
|
|
|
|
gst_log!(self.cat, obj: element, "Successfully pushed item");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Ok(gst::FlowSuccess::Ok);
|
2018-03-27 17:06:25 +00:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
Err(gst::FlowError::Flushing) => {
|
|
|
|
gst_debug!(self.cat, obj: element, "Flushing");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
|
|
|
if let Some(ref queue) = queue.queue {
|
|
|
|
queue.pause();
|
|
|
|
}
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Err(gst::FlowError::Flushing);
|
2018-03-27 17:06:25 +00:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
Err(gst::FlowError::Eos) => {
|
|
|
|
gst_debug!(self.cat, obj: element, "EOS");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
|
|
|
if let Some(ref queue) = queue.queue {
|
|
|
|
queue.pause();
|
|
|
|
}
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Err(gst::FlowError::Eos);
|
2018-03-27 17:06:25 +00:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
Err(err) => {
|
|
|
|
gst_error!(self.cat, obj: element, "Got error {}", err);
|
|
|
|
gst_element_error!(
|
|
|
|
element,
|
|
|
|
gst::StreamError::Failed,
|
|
|
|
("Internal data stream error"),
|
|
|
|
["streaming stopped, reason {}", err]
|
|
|
|
);
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
2019-01-11 23:45:05 +00:00
|
|
|
queue.last_res = Err(err);
|
2018-03-27 17:06:25 +00:00
|
|
|
Err(gst::FlowError::CustomError)
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
match res {
|
|
|
|
Ok(()) => {
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
|
2018-04-05 09:49:12 +00:00
|
|
|
if let StateSrc {
|
|
|
|
io_context: Some(ref io_context),
|
|
|
|
pending_future_id: Some(ref pending_future_id),
|
|
|
|
queue: Some(ref queue),
|
2018-03-27 17:06:25 +00:00
|
|
|
..
|
2018-04-05 09:49:12 +00:00
|
|
|
} = *state
|
2018-03-27 17:06:25 +00:00
|
|
|
{
|
2018-04-05 09:49:12 +00:00
|
|
|
let (cancel, future) = io_context.drain_pending_futures(*pending_future_id);
|
|
|
|
queue.0.lock().unwrap().pending_future_cancel = cancel;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2018-04-05 09:49:12 +00:00
|
|
|
future
|
2018-03-27 17:06:25 +00:00
|
|
|
} else {
|
2018-04-05 09:49:12 +00:00
|
|
|
future::Either::B(future::ok(()))
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
}
|
2018-04-05 09:49:12 +00:00
|
|
|
Err(err) => future::Either::B(future::err(err)),
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn prepare(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Preparing");
|
|
|
|
|
|
|
|
let settings = self.settings.lock().unwrap().clone();
|
|
|
|
|
|
|
|
let mut state = self.state.lock().unwrap();
|
|
|
|
|
2018-11-05 11:43:38 +00:00
|
|
|
let io_context =
|
|
|
|
IOContext::new(&settings.context, settings.context_wait).map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Failed to create IO context: {}", err]
|
|
|
|
)
|
|
|
|
})?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
let queue = SharedQueue::get(&settings.proxy_context, false).ok_or_else(|| {
|
|
|
|
gst_error_msg!(gst::ResourceError::OpenRead, ["Failed to create get queue"])
|
|
|
|
})?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
let dataqueue = DataQueue::new(
|
|
|
|
&element.clone().upcast(),
|
|
|
|
if settings.max_size_buffers == 0 {
|
|
|
|
None
|
|
|
|
} else {
|
|
|
|
Some(settings.max_size_buffers)
|
|
|
|
},
|
|
|
|
if settings.max_size_bytes == 0 {
|
|
|
|
None
|
|
|
|
} else {
|
|
|
|
Some(settings.max_size_bytes)
|
|
|
|
},
|
|
|
|
if settings.max_size_time == 0 {
|
|
|
|
None
|
|
|
|
} else {
|
|
|
|
Some(settings.max_size_time)
|
|
|
|
},
|
|
|
|
);
|
|
|
|
|
|
|
|
let element_clone = element.clone();
|
|
|
|
let element_clone2 = element.clone();
|
|
|
|
dataqueue
|
|
|
|
.schedule(
|
|
|
|
&io_context,
|
|
|
|
move |item| {
|
2018-12-06 11:03:04 +00:00
|
|
|
let src = Self::from_instance(&element_clone);
|
2018-03-27 17:06:25 +00:00
|
|
|
src.push_item(&element_clone, item)
|
|
|
|
},
|
|
|
|
move |err| {
|
2018-12-06 11:03:04 +00:00
|
|
|
let src = Self::from_instance(&element_clone2);
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_error!(src.cat, obj: &element_clone2, "Got error {}", err);
|
|
|
|
match err {
|
|
|
|
gst::FlowError::CustomError => (),
|
|
|
|
err => {
|
|
|
|
gst_element_error!(
|
|
|
|
element_clone2,
|
|
|
|
gst::StreamError::Failed,
|
|
|
|
("Internal data stream error"),
|
|
|
|
["streaming stopped, reason {}", err]
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
},
|
|
|
|
)
|
|
|
|
.map_err(|_| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Failed to schedule data queue"]
|
|
|
|
)
|
2019-01-11 23:45:05 +00:00
|
|
|
})?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
let pending_future_id = io_context.acquire_pending_future_id();
|
|
|
|
gst_debug!(
|
|
|
|
self.cat,
|
|
|
|
obj: element,
|
|
|
|
"Got pending future id {:?}",
|
|
|
|
pending_future_id
|
|
|
|
);
|
|
|
|
|
|
|
|
queue.0.lock().unwrap().queue = Some(dataqueue);
|
|
|
|
|
|
|
|
state.io_context = Some(io_context);
|
|
|
|
state.pending_future_id = Some(pending_future_id);
|
|
|
|
state.queue = Some(queue);
|
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Prepared");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn unprepare(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Unpreparing");
|
|
|
|
|
2018-03-28 09:29:29 +00:00
|
|
|
// FIXME: The IO Context has to be alive longer than the queue,
|
|
|
|
// otherwise the queue can't finish any remaining work
|
|
|
|
let (mut queue, io_context) = {
|
|
|
|
let mut state = self.state.lock().unwrap();
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2018-03-28 09:29:29 +00:00
|
|
|
if let (&Some(ref pending_future_id), &Some(ref io_context)) =
|
|
|
|
(&state.pending_future_id, &state.io_context)
|
|
|
|
{
|
|
|
|
io_context.release_pending_future_id(*pending_future_id);
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2018-03-28 09:29:29 +00:00
|
|
|
let queue = if let Some(ref queue) = state.queue.take() {
|
|
|
|
let mut queue = queue.0.lock().unwrap();
|
|
|
|
queue.queue.take()
|
|
|
|
} else {
|
|
|
|
None
|
|
|
|
};
|
2018-03-27 17:06:25 +00:00
|
|
|
|
2018-03-28 09:29:29 +00:00
|
|
|
let io_context = state.io_context.take();
|
|
|
|
|
|
|
|
*state = StateSrc::default();
|
|
|
|
|
|
|
|
(queue, io_context)
|
|
|
|
};
|
|
|
|
|
|
|
|
if let Some(ref queue) = queue.take() {
|
|
|
|
queue.shutdown();
|
|
|
|
}
|
|
|
|
drop(io_context);
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Unprepared");
|
2018-03-28 09:29:29 +00:00
|
|
|
|
2018-03-27 17:06:25 +00:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn start(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Starting");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
|
|
|
|
|
|
|
if let Some(ref queue) = queue.queue {
|
|
|
|
queue.unpause();
|
|
|
|
}
|
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Started");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn stop(&self, element: &gst::Element) -> Result<(), ()> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_debug!(self.cat, obj: element, "Stopping");
|
|
|
|
let state = self.state.lock().unwrap();
|
|
|
|
let mut queue = state.queue.as_ref().unwrap().0.lock().unwrap();
|
|
|
|
|
|
|
|
if let Some(ref queue) = queue.queue {
|
|
|
|
queue.pause();
|
|
|
|
queue.clear(&self.src_pad);
|
|
|
|
}
|
|
|
|
let _ = queue.pending_future_cancel.take();
|
|
|
|
|
|
|
|
gst_debug!(self.cat, obj: element, "Stopped");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ObjectSubclass for ProxySrc {
|
|
|
|
const NAME: &'static str = "RsTsProxySrc";
|
|
|
|
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 proxy source",
|
|
|
|
"Source/Generic",
|
|
|
|
"Thread-sharing proxy source",
|
|
|
|
"Sebastian Dröge <sebastian@centricular.com>",
|
|
|
|
);
|
|
|
|
|
|
|
|
let caps = gst::Caps::new_any();
|
|
|
|
|
|
|
|
let src_pad_template = gst::PadTemplate::new(
|
|
|
|
"src",
|
|
|
|
gst::PadDirection::Src,
|
|
|
|
gst::PadPresence::Always,
|
|
|
|
&caps,
|
2019-01-29 15:26:40 +00:00
|
|
|
)
|
|
|
|
.unwrap();
|
2018-12-06 11:03:04 +00:00
|
|
|
klass.add_pad_template(src_pad_template);
|
|
|
|
|
|
|
|
klass.install_properties(&PROPERTIES_SRC);
|
|
|
|
}
|
|
|
|
|
|
|
|
fn new() -> Self {
|
|
|
|
unreachable!()
|
|
|
|
}
|
|
|
|
|
|
|
|
fn new_with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
|
|
|
|
let templ = klass.get_pad_template("src").unwrap();
|
|
|
|
let src_pad = gst::Pad::new_from_template(&templ, "src");
|
|
|
|
|
|
|
|
src_pad.set_event_function(|pad, parent, event| {
|
|
|
|
ProxySrc::catch_panic_pad_function(
|
|
|
|
parent,
|
|
|
|
|| false,
|
|
|
|
|queue, element| queue.src_event(pad, element, event),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
src_pad.set_query_function(|pad, parent, query| {
|
|
|
|
ProxySrc::catch_panic_pad_function(
|
|
|
|
parent,
|
|
|
|
|| false,
|
|
|
|
|queue, element| queue.src_query(pad, element, query),
|
|
|
|
)
|
|
|
|
});
|
|
|
|
|
|
|
|
Self {
|
|
|
|
cat: gst::DebugCategory::new(
|
|
|
|
"ts-proxysrc",
|
|
|
|
gst::DebugColorFlags::empty(),
|
|
|
|
"Thread-sharing proxy source",
|
|
|
|
),
|
2019-02-21 18:12:09 +00:00
|
|
|
src_pad,
|
2018-12-06 11:03:04 +00:00
|
|
|
state: Mutex::new(StateSrc::default()),
|
|
|
|
settings: Mutex::new(SettingsSrc::default()),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectImpl for ProxySrc {
|
|
|
|
glib_object_impl!();
|
|
|
|
|
|
|
|
fn set_property(&self, _obj: &glib::Object, id: usize, value: &glib::Value) {
|
|
|
|
let prop = &PROPERTIES_SRC[id];
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-buffers", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.max_size_buffers = value.get().unwrap();
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-bytes", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.max_size_bytes = value.get().unwrap();
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-time", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.max_size_time = value.get().unwrap();
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.context = value.get().unwrap_or_else(|| "".into());
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context-wait", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.context_wait = value.get().unwrap();
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("proxy-context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
settings.proxy_context = value.get().unwrap_or_else(|| "".into());
|
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn get_property(&self, _obj: &glib::Object, id: usize) -> Result<glib::Value, ()> {
|
|
|
|
let prop = &PROPERTIES_SRC[id];
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-buffers", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.max_size_buffers.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-bytes", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.max_size_bytes.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-size-time", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.max_size_time.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.context.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context-wait", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.context_wait.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("proxy-context", ..) => {
|
2018-03-27 17:06:25 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
|
|
|
Ok(settings.proxy_context.to_value())
|
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
|
|
|
|
fn constructed(&self, obj: &glib::Object) {
|
|
|
|
self.parent_constructed(obj);
|
|
|
|
|
|
|
|
let element = obj.downcast_ref::<gst::Element>().unwrap();
|
|
|
|
element.add_pad(&self.src_pad).unwrap();
|
|
|
|
|
|
|
|
::set_element_flags(element, gst::ElementFlags::SOURCE);
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ElementImpl for ProxySrc {
|
2018-03-27 17:06:25 +00:00
|
|
|
fn change_state(
|
|
|
|
&self,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-03-27 17:06:25 +00:00
|
|
|
transition: gst::StateChange,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
|
2018-03-27 17:06:25 +00:00
|
|
|
gst_trace!(self.cat, obj: element, "Changing state {:?}", transition);
|
|
|
|
|
|
|
|
match transition {
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChange::NullToReady => {
|
|
|
|
self.prepare(element).map_err(|err| {
|
2018-03-27 17:06:25 +00:00
|
|
|
element.post_error_message(&err);
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChangeError
|
|
|
|
})?;
|
|
|
|
}
|
|
|
|
gst::StateChange::PlayingToPaused => {
|
|
|
|
self.stop(element).map_err(|_| gst::StateChangeError)?;
|
|
|
|
}
|
|
|
|
gst::StateChange::ReadyToNull => {
|
|
|
|
self.unprepare(element).map_err(|_| gst::StateChangeError)?;
|
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
let mut success = self.parent_change_state(element, transition)?;
|
2018-03-27 17:06:25 +00:00
|
|
|
|
|
|
|
match transition {
|
2018-04-03 16:14:00 +00:00
|
|
|
gst::StateChange::ReadyToPaused => {
|
2019-01-11 23:45:05 +00:00
|
|
|
success = gst::StateChangeSuccess::NoPreroll;
|
|
|
|
}
|
|
|
|
gst::StateChange::PausedToPlaying => {
|
|
|
|
self.start(element).map_err(|_| gst::StateChangeError)?;
|
2018-04-03 16:14:00 +00:00
|
|
|
}
|
2018-03-27 17:06:25 +00:00
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
Ok(success)
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-11-05 11:43:11 +00:00
|
|
|
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
|
2018-12-06 11:03:04 +00:00
|
|
|
gst::Element::register(plugin, "ts-proxysink", 0, ProxySink::get_type())?;
|
|
|
|
gst::Element::register(plugin, "ts-proxysrc", 0, ProxySrc::get_type())
|
2018-03-27 17:06:25 +00:00
|
|
|
}
|