2018-07-06 07:32:24 +00:00
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// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
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// Copyright (C) 2018 LEE Dongjun <redongjun@gmail.com>
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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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2019-11-24 20:12:40 +00:00
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use either::Either;
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2019-11-30 18:51:31 +00:00
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use futures::executor::block_on;
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2019-12-02 09:30:07 +00:00
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use futures::future::BoxFuture;
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use futures::lock::{Mutex, MutexGuard};
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use futures::prelude::*;
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2019-11-24 20:12:40 +00:00
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2018-07-06 07:32:24 +00:00
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use glib;
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use glib::prelude::*;
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2018-12-06 11:03:04 +00:00
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use glib::subclass;
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use glib::subclass::prelude::*;
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2019-11-24 20:12:40 +00:00
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use glib::{glib_object_impl, glib_object_subclass};
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2018-07-06 07:32:24 +00:00
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use gst;
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use gst::prelude::*;
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2018-12-06 11:03:04 +00:00
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use gst::subclass::prelude::*;
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2019-11-24 20:12:40 +00:00
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use gst::{gst_debug, gst_element_error, gst_error, gst_error_msg, gst_log, gst_trace};
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2019-12-02 09:30:07 +00:00
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use gst::{EventView, QueryView};
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2019-11-24 20:12:40 +00:00
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use lazy_static::lazy_static;
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use rand;
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2018-07-06 07:32:24 +00:00
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use std::io;
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2019-12-02 09:30:07 +00:00
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use std::net::{IpAddr, SocketAddr};
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use std::sync::Arc;
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2018-07-06 07:32:24 +00:00
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use std::u16;
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2019-12-02 09:30:07 +00:00
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use tokio::io::AsyncReadExt;
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2019-11-30 18:51:31 +00:00
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use tokio::task::JoinHandle;
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2018-07-06 07:32:24 +00:00
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2019-12-02 09:30:07 +00:00
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use crate::runtime::prelude::*;
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use crate::runtime::{Context, PadSrc, PadSrcRef};
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use super::socket::{Socket, SocketRead, SocketStream};
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2018-07-06 07:32:24 +00:00
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2019-02-21 18:12:09 +00:00
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const DEFAULT_ADDRESS: Option<&str> = Some("127.0.0.1");
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2018-07-06 07:32:24 +00:00
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const DEFAULT_PORT: u32 = 5000;
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const DEFAULT_CAPS: Option<gst::Caps> = None;
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const DEFAULT_CHUNK_SIZE: u32 = 4096;
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2019-02-21 18:12:09 +00:00
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const DEFAULT_CONTEXT: &str = "";
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2018-07-06 07:32:24 +00:00
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const DEFAULT_CONTEXT_WAIT: u32 = 0;
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#[derive(Debug, Clone)]
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struct Settings {
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address: Option<String>,
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port: u32,
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caps: Option<gst::Caps>,
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chunk_size: u32,
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context: String,
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context_wait: u32,
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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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address: DEFAULT_ADDRESS.map(Into::into),
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port: DEFAULT_PORT,
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caps: DEFAULT_CAPS,
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chunk_size: DEFAULT_CHUNK_SIZE,
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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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2018-12-06 11:03:04 +00:00
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static PROPERTIES: [subclass::Property; 6] = [
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2018-12-18 09:23:45 +00:00
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subclass::Property("address", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::string(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Address",
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"Address to receive packets from",
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DEFAULT_ADDRESS,
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-12-18 09:23:45 +00:00
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subclass::Property("port", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::uint(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Port",
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"Port to receive packets from",
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0,
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u16::MAX as u32,
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DEFAULT_PORT,
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-12-18 09:23:45 +00:00
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subclass::Property("caps", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::boxed(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Caps",
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"Caps to use",
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gst::Caps::static_type(),
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-12-18 09:23:45 +00:00
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subclass::Property("chunk-size", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::uint(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Chunk Size",
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"Chunk Size",
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0,
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u16::MAX as u32,
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DEFAULT_CHUNK_SIZE,
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-12-18 09:23:45 +00:00
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subclass::Property("context", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::string(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Context",
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"Context name to share threads with",
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Some(DEFAULT_CONTEXT),
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-12-18 09:23:45 +00:00
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subclass::Property("context-wait", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::uint(
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2018-12-18 09:23:45 +00:00
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name,
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2018-12-06 11:03:04 +00:00
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"Context Wait",
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"Throttle poll loop to run at most once every this many ms",
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0,
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1000,
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DEFAULT_CONTEXT_WAIT,
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-07-06 07:32:24 +00:00
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];
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2019-12-02 09:30:07 +00:00
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struct TcpClientReaderInner {
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2019-11-30 18:51:31 +00:00
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socket: tokio::net::TcpStream,
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2018-07-06 07:32:24 +00:00
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}
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2019-12-02 09:30:07 +00:00
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pub struct TcpClientReader(Arc<Mutex<TcpClientReaderInner>>);
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impl TcpClientReader {
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2019-11-30 18:51:31 +00:00
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pub fn new(socket: tokio::net::TcpStream) -> Self {
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TcpClientReader(Arc::new(Mutex::new(TcpClientReaderInner { socket })))
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2019-12-02 09:30:07 +00:00
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}
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}
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2018-07-06 07:32:24 +00:00
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impl SocketRead for TcpClientReader {
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const DO_TIMESTAMP: bool = false;
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2019-12-02 09:30:07 +00:00
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fn read<'buf>(
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&self,
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buffer: &'buf mut [u8],
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) -> BoxFuture<'buf, io::Result<(usize, Option<std::net::SocketAddr>)>> {
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let this = Arc::clone(&self.0);
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async move {
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2019-11-30 18:51:31 +00:00
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this.lock()
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.await
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.socket
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.read(buffer)
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.await
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.map(|read_size| (read_size, None))
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2019-12-02 09:30:07 +00:00
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}
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.boxed()
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2018-07-06 07:32:24 +00:00
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}
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}
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2019-12-02 09:30:07 +00:00
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struct TcpClientSrcPadHandlerInner {
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socket_stream: Option<SocketStream<TcpClientReader>>,
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2018-07-06 07:32:24 +00:00
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need_initial_events: bool,
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configured_caps: Option<gst::Caps>,
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}
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2019-12-02 09:30:07 +00:00
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impl Default for TcpClientSrcPadHandlerInner {
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fn default() -> Self {
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TcpClientSrcPadHandlerInner {
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socket_stream: None,
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2018-07-06 07:32:24 +00:00
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need_initial_events: true,
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configured_caps: None,
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}
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}
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}
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2019-12-02 09:30:07 +00:00
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#[derive(Clone)]
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struct TcpClientSrcPadHandler(Arc<Mutex<TcpClientSrcPadHandlerInner>>);
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2018-07-06 07:32:24 +00:00
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2019-12-02 09:30:07 +00:00
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impl TcpClientSrcPadHandler {
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fn new() -> Self {
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TcpClientSrcPadHandler(Arc::new(Mutex::new(TcpClientSrcPadHandlerInner::default())))
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}
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#[inline]
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async fn lock(&self) -> MutexGuard<'_, TcpClientSrcPadHandlerInner> {
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self.0.lock().await
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}
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async fn start_task(&self, pad: PadSrcRef<'_>, element: &gst::Element) {
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let this = self.clone();
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let pad_weak = pad.downgrade();
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let element = element.clone();
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pad.start_task(move || {
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let this = this.clone();
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let pad_weak = pad_weak.clone();
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let element = element.clone();
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async move {
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let item = this
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.lock()
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.await
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.socket_stream
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.as_mut()
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.expect("Missing SocketStream")
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.next()
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.await;
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let pad = pad_weak.upgrade().expect("PadSrc no longer exists");
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let buffer = match item {
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Some(Ok((buffer, _))) => buffer,
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Some(Err(err)) => {
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gst_error!(CAT, obj: &element, "Got error {}", err);
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match err {
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Either::Left(gst::FlowError::CustomError) => (),
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Either::Left(err) => {
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gst_element_error!(
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element,
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gst::StreamError::Failed,
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("Internal data stream error"),
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["streaming stopped, reason {}", err]
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);
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}
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Either::Right(err) => {
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gst_element_error!(
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element,
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gst::StreamError::Failed,
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("I/O error"),
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["streaming stopped, I/O error {}", err]
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);
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}
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}
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return;
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}
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None => {
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gst_log!(CAT, obj: pad.gst_pad(), "SocketStream Stopped");
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pad.pause_task().await;
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return;
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}
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};
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this.push_buffer(pad, &element, buffer).await;
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}
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})
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.await;
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}
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async fn push_buffer(&self, pad: PadSrcRef<'_>, element: &gst::Element, buffer: gst::Buffer) {
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{
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let mut events = Vec::new();
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{
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let mut inner = self.lock().await;
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if inner.need_initial_events {
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gst_debug!(CAT, obj: pad.gst_pad(), "Pushing initial events");
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let stream_id =
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format!("{:08x}{:08x}", rand::random::<u32>(), rand::random::<u32>());
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events.push(
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gst::Event::new_stream_start(&stream_id)
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.group_id(gst::util_group_id_next())
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.build(),
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);
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let tcpclientsrc = TcpClientSrc::from_instance(element);
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if let Some(ref caps) = tcpclientsrc.settings.lock().await.caps {
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events.push(gst::Event::new_caps(&caps).build());
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inner.configured_caps = Some(caps.clone());
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}
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events.push(
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gst::Event::new_segment(&gst::FormattedSegment::<gst::format::Time>::new())
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.build(),
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);
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inner.need_initial_events = false;
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}
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if buffer.get_size() == 0 {
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events.push(gst::Event::new_eos().build());
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}
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}
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for event in events {
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pad.push_event(event).await;
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}
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}
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match pad.push(buffer).await {
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Ok(_) => {
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gst_log!(CAT, obj: pad.gst_pad(), "Successfully pushed buffer");
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}
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Err(gst::FlowError::Flushing) => {
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gst_debug!(CAT, obj: pad.gst_pad(), "Flushing");
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pad.pause_task().await;
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}
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Err(gst::FlowError::Eos) => {
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gst_debug!(CAT, obj: pad.gst_pad(), "EOS");
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pad.pause_task().await;
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}
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Err(err) => {
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gst_error!(CAT, obj: pad.gst_pad(), "Got error {}", err);
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gst_element_error!(
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element,
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gst::StreamError::Failed,
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("Internal data stream error"),
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["streaming stopped, reason {}", err]
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);
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}
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}
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}
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2019-10-31 22:34:21 +00:00
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}
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2019-12-02 09:30:07 +00:00
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impl PadSrcHandler for TcpClientSrcPadHandler {
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type ElementImpl = TcpClientSrc;
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2018-07-06 07:32:24 +00:00
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2019-12-02 09:30:07 +00:00
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fn src_event(
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&self,
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pad: PadSrcRef,
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tcpclientsrc: &TcpClientSrc,
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element: &gst::Element,
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event: gst::Event,
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|
|
) -> Either<bool, BoxFuture<'static, bool>> {
|
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handling event {:?}", event);
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
let ret = match event.view() {
|
|
|
|
EventView::FlushStart(..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let _ = block_on(tcpclientsrc.pause(element));
|
2018-07-06 07:32:24 +00:00
|
|
|
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
|
2018-07-06 07:32:24 +00:00
|
|
|
{
|
2019-11-30 18:51:31 +00:00
|
|
|
let _ = block_on(tcpclientsrc.start(element));
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
true
|
|
|
|
}
|
|
|
|
EventView::Reconfigure(..) => true,
|
|
|
|
EventView::Latency(..) => true,
|
|
|
|
_ => false,
|
|
|
|
};
|
|
|
|
|
|
|
|
if ret {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handled event {:?}", event);
|
2018-07-06 07:32:24 +00:00
|
|
|
} else {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Didn't handle event {:?}", event);
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2019-12-02 09:30:07 +00:00
|
|
|
|
|
|
|
Either::Left(ret)
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn src_query(
|
|
|
|
&self,
|
2019-12-02 09:30:07 +00:00
|
|
|
pad: PadSrcRef,
|
|
|
|
_tcpclientsrc: &TcpClientSrc,
|
2018-12-06 11:03:04 +00:00
|
|
|
_element: &gst::Element,
|
|
|
|
query: &mut gst::QueryRef,
|
|
|
|
) -> bool {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handling query {:?}", query);
|
2018-07-06 07:32:24 +00:00
|
|
|
let ret = match query.view_mut() {
|
|
|
|
QueryView::Latency(ref mut q) => {
|
|
|
|
q.set(false, 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) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let inner = block_on(self.lock());
|
2019-12-02 09:30:07 +00:00
|
|
|
let caps = if let Some(ref caps) = inner.configured_caps {
|
2018-07-06 07:32:24 +00:00
|
|
|
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())
|
2018-07-06 07:32:24 +00:00
|
|
|
} else {
|
|
|
|
q.get_filter()
|
|
|
|
.map(|f| f.to_owned())
|
2019-07-04 15:30:26 +00:00
|
|
|
.unwrap_or_else(gst::Caps::new_any)
|
2018-07-06 07:32:24 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
q.set_result(&caps);
|
|
|
|
|
|
|
|
true
|
|
|
|
}
|
|
|
|
_ => false,
|
|
|
|
};
|
|
|
|
|
|
|
|
if ret {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handled query {:?}", query);
|
2018-07-06 07:32:24 +00:00
|
|
|
} else {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Didn't handle query {:?}", query);
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
ret
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
struct State {
|
|
|
|
socket: Option<Socket<TcpClientReader>>,
|
|
|
|
}
|
2019-11-24 20:12:40 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
impl Default for State {
|
|
|
|
fn default() -> State {
|
|
|
|
State { socket: None }
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-11-30 18:51:31 +00:00
|
|
|
#[derive(Debug)]
|
|
|
|
struct PreparationSet {
|
|
|
|
join_handle: JoinHandle<Result<(), gst::ErrorMessage>>,
|
|
|
|
context: Context,
|
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
struct TcpClientSrc {
|
|
|
|
src_pad: PadSrc,
|
|
|
|
src_pad_handler: TcpClientSrcPadHandler,
|
|
|
|
state: Mutex<State>,
|
|
|
|
settings: Mutex<Settings>,
|
2019-11-30 18:51:31 +00:00
|
|
|
preparation_set: Mutex<Option<PreparationSet>>,
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
lazy_static! {
|
|
|
|
static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
|
|
|
|
"ts-tcpclientsrc",
|
|
|
|
gst::DebugColorFlags::empty(),
|
|
|
|
Some("Thread-sharing TCP Client source"),
|
|
|
|
);
|
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
impl TcpClientSrc {
|
|
|
|
async fn prepare(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2019-11-30 18:51:31 +00:00
|
|
|
let _state = self.state.lock().await;
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Preparing");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-11-30 18:51:31 +00:00
|
|
|
let context = {
|
|
|
|
let settings = self.settings.lock().await;
|
|
|
|
Context::acquire(&settings.context, settings.context_wait).map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Failed to acquire Context: {}", err]
|
|
|
|
)
|
|
|
|
})?
|
|
|
|
};
|
|
|
|
|
|
|
|
// TcpStream needs to be instantiated in the thread of its I/O reactor
|
|
|
|
*self.preparation_set.lock().await = Some(PreparationSet {
|
|
|
|
join_handle: context.spawn(Self::prepare_socket(element.clone())),
|
|
|
|
context,
|
|
|
|
});
|
|
|
|
|
|
|
|
gst_debug!(CAT, obj: element, "Prepared");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
|
|
|
async fn prepare_socket(element: gst::Element) -> Result<(), gst::ErrorMessage> {
|
|
|
|
let this = Self::from_instance(&element);
|
|
|
|
|
|
|
|
let settings = this.settings.lock().await.clone();
|
|
|
|
gst_debug!(CAT, obj: &element, "Preparing Socket");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
let addr: IpAddr = match settings.address {
|
|
|
|
None => {
|
|
|
|
return Err(gst_error_msg!(
|
|
|
|
gst::ResourceError::Settings,
|
|
|
|
["No address set"]
|
2018-12-04 17:01:40 +00:00
|
|
|
));
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
Some(ref addr) => match addr.parse() {
|
|
|
|
Err(err) => {
|
|
|
|
return Err(gst_error_msg!(
|
|
|
|
gst::ResourceError::Settings,
|
|
|
|
["Invalid address '{}' set: {}", addr, err]
|
2018-12-04 17:01:40 +00:00
|
|
|
));
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
Ok(addr) => addr,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
let port = settings.port;
|
|
|
|
|
|
|
|
let saddr = SocketAddr::new(addr, port as u16);
|
2019-11-30 18:51:31 +00:00
|
|
|
gst_debug!(CAT, obj: &element, "Connecting to {:?}", saddr);
|
|
|
|
let socket = tokio::net::TcpStream::connect(saddr).await.map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::Settings,
|
|
|
|
["Failed to connect to {:?} {:?}", saddr, err]
|
|
|
|
)
|
|
|
|
})?;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
let buffer_pool = gst::BufferPool::new();
|
|
|
|
let mut config = buffer_pool.get_config();
|
|
|
|
config.set_params(None, settings.chunk_size, 0, 0);
|
|
|
|
buffer_pool.set_config(config).map_err(|_| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::Settings,
|
|
|
|
["Failed to configure buffer pool"]
|
|
|
|
)
|
|
|
|
})?;
|
|
|
|
|
|
|
|
let socket = Socket::new(
|
|
|
|
element.upcast_ref(),
|
|
|
|
TcpClientReader::new(socket),
|
|
|
|
buffer_pool,
|
|
|
|
);
|
|
|
|
|
2019-11-30 18:51:31 +00:00
|
|
|
let socket_stream = socket.prepare().await.map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Failed to prepare socket {:?}", err]
|
|
|
|
)
|
2019-12-02 09:30:07 +00:00
|
|
|
})?;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-11-30 18:51:31 +00:00
|
|
|
this.src_pad_handler.lock().await.socket_stream = Some(socket_stream);
|
|
|
|
|
|
|
|
this.state.lock().await.socket = Some(socket);
|
|
|
|
|
|
|
|
gst_debug!(CAT, obj: &element, "Socket Prepared");
|
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
|
|
|
async fn complete_preparation(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
|
|
|
gst_debug!(CAT, obj: element, "Completing preparation");
|
|
|
|
|
|
|
|
let PreparationSet {
|
|
|
|
join_handle,
|
|
|
|
context,
|
|
|
|
} = self
|
|
|
|
.preparation_set
|
|
|
|
.lock()
|
|
|
|
.await
|
|
|
|
.take()
|
|
|
|
.expect("preparation_set already taken");
|
|
|
|
|
|
|
|
join_handle
|
|
|
|
.await
|
|
|
|
.expect("The socket preparation has panicked")?;
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
self.src_pad
|
|
|
|
.prepare(context, &self.src_pad_handler)
|
|
|
|
.await
|
|
|
|
.map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Error preparing src_pads: {:?}", err]
|
|
|
|
)
|
|
|
|
})?;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-11-30 18:51:31 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Preparation completed");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
async fn unprepare(&self, element: &gst::Element) -> Result<(), ()> {
|
|
|
|
let mut state = self.state.lock().await;
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Unpreparing");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
self.src_pad.stop_task().await;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
{
|
|
|
|
let socket = state.socket.take().unwrap();
|
|
|
|
socket.unprepare().await.unwrap();
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2019-12-02 09:30:07 +00:00
|
|
|
|
|
|
|
let _ = self.src_pad.unprepare().await;
|
|
|
|
self.src_pad_handler.lock().await.configured_caps = None;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Unprepared");
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
async fn start(&self, element: &gst::Element) -> Result<(), ()> {
|
|
|
|
let state = self.state.lock().await;
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Starting");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
if let Some(ref socket) = state.socket {
|
2019-12-02 09:30:07 +00:00
|
|
|
socket
|
|
|
|
.start(element.get_clock(), Some(element.get_base_time()))
|
|
|
|
.await;
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
self.src_pad_handler
|
|
|
|
.start_task(self.src_pad.as_ref(), element)
|
|
|
|
.await;
|
|
|
|
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Started");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
async fn pause(&self, element: &gst::Element) -> Result<(), ()> {
|
|
|
|
let pause_completion = {
|
|
|
|
let state = self.state.lock().await;
|
|
|
|
gst_debug!(CAT, obj: element, "Pausing");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
let pause_completion = self.src_pad.pause_task().await;
|
|
|
|
state.socket.as_ref().unwrap().pause().await;
|
2019-11-24 20:12:40 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
pause_completion
|
|
|
|
};
|
2018-07-06 07:32:24 +00:00
|
|
|
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Waiting for Task Pause to complete");
|
|
|
|
pause_completion.await;
|
|
|
|
|
|
|
|
gst_debug!(CAT, obj: element, "Paused");
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ObjectSubclass for TcpClientSrc {
|
|
|
|
const NAME: &'static str = "RsTsTcpClientSrc";
|
|
|
|
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 TCP client source",
|
|
|
|
"Source/Network",
|
|
|
|
"Receives data over the network via TCP",
|
|
|
|
"Sebastian Dröge <sebastian@centricular.com>, LEE Dongjun <redongjun@gmail.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);
|
|
|
|
}
|
|
|
|
|
|
|
|
fn new_with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
|
|
|
|
let templ = klass.get_pad_template("src").unwrap();
|
2019-12-02 09:30:07 +00:00
|
|
|
let src_pad = PadSrc::new_from_template(&templ, Some("src"));
|
2018-12-06 11:03:04 +00:00
|
|
|
|
|
|
|
Self {
|
2019-02-21 18:12:09 +00:00
|
|
|
src_pad,
|
2019-12-02 09:30:07 +00:00
|
|
|
src_pad_handler: TcpClientSrcPadHandler::new(),
|
2018-12-06 11:03:04 +00:00
|
|
|
state: Mutex::new(State::default()),
|
|
|
|
settings: Mutex::new(Settings::default()),
|
2019-11-30 18:51:31 +00:00
|
|
|
preparation_set: Mutex::new(None),
|
2018-12-06 11:03:04 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectImpl for TcpClientSrc {
|
|
|
|
glib_object_impl!();
|
|
|
|
|
|
|
|
fn set_property(&self, _obj: &glib::Object, id: usize, value: &glib::Value) {
|
|
|
|
let prop = &PROPERTIES[id];
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("address", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.address = value.get().expect("type checked upstream");
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("port", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.port = value.get_some().expect("type checked upstream");
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("caps", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.caps = value.get().expect("type checked upstream");
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("chunk-size", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.chunk_size = value.get_some().expect("type checked upstream");
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.context = value
|
|
|
|
.get()
|
|
|
|
.expect("type checked upstream")
|
|
|
|
.unwrap_or_else(|| "".into());
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context-wait", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut settings = block_on(self.settings.lock());
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.context_wait = value.get_some().expect("type checked upstream");
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
_ => unimplemented!(),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
fn get_property(&self, _obj: &glib::Object, id: usize) -> Result<glib::Value, ()> {
|
|
|
|
let prop = &PROPERTIES[id];
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("address", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.address.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("port", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.port.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("caps", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.caps.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("chunk-size", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.chunk_size.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.context.to_value())
|
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context-wait", ..) => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let settings = block_on(self.settings.lock());
|
2018-07-06 07:32:24 +00:00
|
|
|
Ok(settings.context_wait.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();
|
2019-12-02 09:30:07 +00:00
|
|
|
element.add_pad(self.src_pad.gst_pad()).unwrap();
|
2018-12-06 11:03:04 +00:00
|
|
|
|
2019-11-24 20:12:40 +00:00
|
|
|
super::set_element_flags(element, gst::ElementFlags::SOURCE);
|
2018-12-06 11:03:04 +00:00
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ElementImpl for TcpClientSrc {
|
2018-07-06 07:32:24 +00:00
|
|
|
fn change_state(
|
|
|
|
&self,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-07-06 07:32:24 +00:00
|
|
|
transition: gst::StateChange,
|
2019-01-11 23:45:05 +00:00
|
|
|
) -> Result<gst::StateChangeSuccess, gst::StateChangeError> {
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_trace!(CAT, obj: element, "Changing state {:?}", transition);
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
match transition {
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChange::NullToReady => {
|
2019-11-30 18:51:31 +00:00
|
|
|
block_on(self.prepare(element)).map_err(|err| {
|
|
|
|
element.post_error_message(&err);
|
|
|
|
gst::StateChangeError
|
|
|
|
})?;
|
|
|
|
}
|
|
|
|
gst::StateChange::ReadyToPaused => {
|
|
|
|
block_on(self.complete_preparation(element)).map_err(|err| {
|
|
|
|
element.post_error_message(&err);
|
|
|
|
gst::StateChangeError
|
|
|
|
})?;
|
2019-01-11 23:45:05 +00:00
|
|
|
}
|
|
|
|
gst::StateChange::PlayingToPaused => {
|
2019-11-30 18:51:31 +00:00
|
|
|
block_on(self.pause(element)).map_err(|_| gst::StateChangeError)?;
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
|
|
|
gst::StateChange::ReadyToNull => {
|
2019-11-30 18:51:31 +00:00
|
|
|
block_on(self.unprepare(element)).map_err(|_| gst::StateChangeError)?;
|
2019-01-11 23:45:05 +00:00
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
let mut success = self.parent_change_state(element, transition)?;
|
2018-07-06 07:32:24 +00:00
|
|
|
|
|
|
|
match transition {
|
|
|
|
gst::StateChange::ReadyToPaused => {
|
2019-01-11 23:45:05 +00:00
|
|
|
success = gst::StateChangeSuccess::Success;
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
2019-11-30 18:51:31 +00:00
|
|
|
gst::StateChange::PausedToPlaying => {
|
|
|
|
block_on(self.start(element)).map_err(|_| gst::StateChangeError)?;
|
|
|
|
}
|
2018-07-06 07:32:24 +00:00
|
|
|
gst::StateChange::PausedToReady => {
|
2019-11-30 18:51:31 +00:00
|
|
|
let mut src_pad_handler = block_on(self.src_pad_handler.lock());
|
2019-12-02 09:30:07 +00:00
|
|
|
src_pad_handler.need_initial_events = true;
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
Ok(success)
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-11-05 11:43:11 +00:00
|
|
|
pub fn register(plugin: &gst::Plugin) -> Result<(), glib::BoolError> {
|
2019-06-04 09:04:06 +00:00
|
|
|
gst::Element::register(
|
|
|
|
Some(plugin),
|
|
|
|
"ts-tcpclientsrc",
|
|
|
|
gst::Rank::None,
|
|
|
|
TcpClientSrc::get_type(),
|
|
|
|
)
|
2018-07-06 07:32:24 +00:00
|
|
|
}
|