2018-04-03 16:40:12 +00:00
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// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
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2020-03-26 18:07:25 +00:00
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// Copyright (C) 2019-2020 François Laignel <fengalin@free.fr>
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2018-04-03 16:40:12 +00:00
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the
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// Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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// Boston, MA 02110-1335, USA.
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2019-11-24 20:12:40 +00:00
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use futures::channel::mpsc;
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2020-04-20 19:35:06 +00:00
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use futures::future::BoxFuture;
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2020-03-08 18:18:41 +00:00
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use futures::lock::Mutex as FutMutex;
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2019-11-24 20:12:40 +00:00
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use futures::prelude::*;
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2018-04-03 16:40:12 +00:00
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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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2018-04-03 16:40:12 +00:00
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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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2018-04-03 16:40:12 +00:00
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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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2018-04-03 16:40:12 +00:00
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2019-12-02 09:30:07 +00:00
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use std::convert::TryInto;
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2020-03-19 18:34:51 +00:00
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use std::sync::Arc;
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2020-03-08 18:18:41 +00:00
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use std::sync::Mutex as StdMutex;
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2019-11-24 20:12:40 +00:00
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use std::u32;
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2019-12-02 09:30:07 +00:00
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use crate::runtime::prelude::*;
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2020-04-20 19:35:06 +00:00
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use crate::runtime::{Context, PadSrc, PadSrcRef, PadSrcWeak, Task, TaskState};
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2018-04-03 16:40:12 +00:00
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2019-02-21 18:12:09 +00:00
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const DEFAULT_CONTEXT: &str = "";
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2018-04-03 16:40:12 +00:00
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const DEFAULT_CONTEXT_WAIT: u32 = 0;
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const DEFAULT_CAPS: Option<gst::Caps> = None;
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const DEFAULT_MAX_BUFFERS: u32 = 10;
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const DEFAULT_DO_TIMESTAMP: bool = false;
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#[derive(Debug, Clone)]
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struct Settings {
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context: String,
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context_wait: u32,
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caps: Option<gst::Caps>,
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max_buffers: u32,
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do_timestamp: bool,
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}
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impl Default for Settings {
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fn default() -> Self {
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Settings {
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context: DEFAULT_CONTEXT.into(),
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context_wait: DEFAULT_CONTEXT_WAIT,
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caps: DEFAULT_CAPS,
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max_buffers: DEFAULT_MAX_BUFFERS,
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do_timestamp: DEFAULT_DO_TIMESTAMP,
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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; 5] = [
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2018-12-18 09:23:45 +00:00
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subclass::Property("context", |name| {
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glib::ParamSpec::string(
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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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glib::ParamSpec::uint(
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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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2018-12-18 09:23:45 +00:00
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subclass::Property("max-buffers", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::uint(
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name,
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2018-12-06 11:03:04 +00:00
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"Max Buffers",
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"Maximum number of buffers to queue up",
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1,
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u32::MAX,
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DEFAULT_MAX_BUFFERS,
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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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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("do-timestamp", |name| {
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2018-12-06 11:03:04 +00:00
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glib::ParamSpec::boolean(
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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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"Do Timestamp",
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"Timestamp buffers with the current running time on arrival",
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DEFAULT_DO_TIMESTAMP,
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glib::ParamFlags::READWRITE,
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)
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}),
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2018-04-03 16:40:12 +00:00
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];
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2019-12-02 09:30:07 +00:00
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lazy_static! {
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static ref CAT: gst::DebugCategory = gst::DebugCategory::new(
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"ts-appsrc",
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gst::DebugColorFlags::empty(),
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Some("Thread-sharing app source"),
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);
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}
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#[derive(Debug)]
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enum StreamItem {
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Buffer(gst::Buffer),
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Event(gst::Event),
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}
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#[derive(Debug)]
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2020-01-06 12:19:11 +00:00
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struct AppSrcPadHandlerState {
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2018-04-03 16:40:12 +00:00
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need_initial_events: bool,
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need_segment: bool,
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caps: Option<gst::Caps>,
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2018-04-03 16:40:12 +00:00
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}
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2020-01-06 12:19:11 +00:00
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impl Default for AppSrcPadHandlerState {
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fn default() -> Self {
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AppSrcPadHandlerState {
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need_initial_events: true,
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need_segment: true,
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caps: None,
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2018-04-03 16:40:12 +00:00
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}
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}
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}
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2020-03-26 18:07:25 +00:00
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#[derive(Debug, Default)]
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struct AppSrcPadHandlerInner {
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2020-03-19 18:34:51 +00:00
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state: FutMutex<AppSrcPadHandlerState>,
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configured_caps: StdMutex<Option<gst::Caps>>,
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}
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2019-10-31 22:34:21 +00:00
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2020-03-26 18:07:25 +00:00
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#[derive(Clone, Debug, Default)]
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struct AppSrcPadHandler(Arc<AppSrcPadHandlerInner>);
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2019-12-02 09:30:07 +00:00
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2020-01-06 12:19:11 +00:00
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impl AppSrcPadHandler {
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2020-03-26 18:07:25 +00:00
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fn prepare(&self, caps: Option<gst::Caps>) {
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self.0
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.state
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.try_lock()
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.expect("State locked elsewhere")
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.caps = caps;
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2020-03-19 18:34:51 +00:00
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}
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2020-04-20 19:35:06 +00:00
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async fn reset_state(&self) {
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*self.0.state.lock().await = Default::default();
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2020-03-19 18:34:51 +00:00
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}
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2020-04-20 19:35:06 +00:00
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async fn set_need_segment(&self) {
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self.0.state.lock().await.need_segment = true;
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2019-12-02 09:30:07 +00:00
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}
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2020-03-08 18:18:41 +00:00
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async fn push_prelude(&self, pad: &PadSrcRef<'_>, _element: &gst::Element) {
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2020-03-19 18:34:51 +00:00
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let mut state = self.0.state.lock().await;
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if state.need_initial_events {
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2020-03-08 18:18:41 +00:00
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gst_debug!(CAT, obj: pad.gst_pad(), "Pushing initial events");
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let stream_id = format!("{:08x}{:08x}", rand::random::<u32>(), rand::random::<u32>());
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2020-06-24 22:33:57 +00:00
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let stream_start_evt = gst::event::StreamStart::builder(&stream_id)
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2020-03-19 18:34:51 +00:00
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.group_id(gst::GroupId::next())
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.build();
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pad.push_event(stream_start_evt).await;
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2020-03-08 18:18:41 +00:00
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if let Some(ref caps) = state.caps {
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2020-06-24 22:33:57 +00:00
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pad.push_event(gst::event::Caps::new(&caps)).await;
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2020-03-19 18:34:51 +00:00
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*self.0.configured_caps.lock().unwrap() = Some(caps.clone());
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2019-12-02 09:30:07 +00:00
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}
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2020-03-08 18:18:41 +00:00
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state.need_initial_events = false;
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2019-12-02 09:30:07 +00:00
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}
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2020-03-19 18:34:51 +00:00
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if state.need_segment {
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let segment_evt =
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2020-06-24 22:33:57 +00:00
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gst::event::Segment::new(&gst::FormattedSegment::<gst::format::Time>::new());
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2020-03-19 18:34:51 +00:00
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pad.push_event(segment_evt).await;
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state.need_segment = false;
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2020-03-08 18:18:41 +00:00
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}
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}
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async fn push_item(
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&self,
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2020-03-08 18:18:41 +00:00
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pad: &PadSrcRef<'_>,
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element: &gst::Element,
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item: StreamItem,
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) -> Result<gst::FlowSuccess, gst::FlowError> {
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2020-03-19 18:34:51 +00:00
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gst_log!(CAT, obj: pad.gst_pad(), "Handling {:?}", item);
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2020-03-08 18:18:41 +00:00
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self.push_prelude(pad, element).await;
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match item {
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StreamItem::Buffer(buffer) => {
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gst_log!(CAT, obj: pad.gst_pad(), "Forwarding {:?}", buffer);
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2019-12-02 09:30:07 +00:00
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pad.push(buffer).await
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}
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StreamItem::Event(event) => {
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2020-04-20 19:35:06 +00:00
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match event.view() {
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gst::EventView::Eos(_) => {
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// Let the caller push the event
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Err(gst::FlowError::Eos)
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}
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_ => {
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gst_log!(CAT, obj: pad.gst_pad(), "Forwarding {:?}", event);
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pad.push_event(event).await;
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Ok(gst::FlowSuccess::Ok)
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}
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}
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2019-12-02 09:30:07 +00:00
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}
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2018-04-03 16:40:12 +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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}
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2018-04-03 16:40:12 +00:00
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2019-12-02 09:30:07 +00:00
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impl PadSrcHandler for AppSrcPadHandler {
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type ElementImpl = AppSrc;
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2018-04-03 16:40:12 +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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appsrc: &AppSrc,
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_element: &gst::Element,
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2019-12-02 09:30:07 +00:00
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event: gst::Event,
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2020-03-08 18:18:41 +00:00
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) -> bool {
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2020-01-06 12:19:11 +00:00
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use gst::EventView;
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gst_log!(CAT, obj: pad.gst_pad(), "Handling {:?}", event);
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2018-04-03 16:40:12 +00:00
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let ret = match event.view() {
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2020-05-15 17:38:54 +00:00
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EventView::FlushStart(..) => appsrc.task.flush_start().is_ok(),
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EventView::FlushStop(..) => appsrc.task.flush_stop().is_ok(),
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2018-04-03 16:40:12 +00:00
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EventView::Reconfigure(..) => true,
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EventView::Latency(..) => true,
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_ => false,
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};
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if ret {
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2020-01-06 12:19:11 +00:00
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gst_log!(CAT, obj: pad.gst_pad(), "Handled {:?}", event);
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2018-04-03 16:40:12 +00:00
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} else {
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2020-01-06 12:19:11 +00:00
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gst_log!(CAT, obj: pad.gst_pad(), "Didn't handle {:?}", event);
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2018-04-03 16:40:12 +00:00
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}
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2020-03-08 18:18:41 +00:00
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ret
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2018-04-03 16:40:12 +00:00
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}
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2018-12-06 11:03:04 +00:00
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fn src_query(
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&self,
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2020-01-06 12:19:11 +00:00
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pad: &PadSrcRef,
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2020-03-08 18:18:41 +00:00
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_appsrc: &AppSrc,
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2018-12-06 11:03:04 +00:00
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_element: &gst::Element,
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query: &mut gst::QueryRef,
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) -> bool {
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2020-01-06 12:19:11 +00:00
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use gst::QueryView;
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gst_log!(CAT, obj: pad.gst_pad(), "Handling {:?}", query);
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2018-04-03 16:40:12 +00:00
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let ret = match query.view_mut() {
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QueryView::Latency(ref mut q) => {
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2020-01-23 15:09:40 +00:00
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q.set(true, 0.into(), gst::CLOCK_TIME_NONE);
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2018-04-03 16:40:12 +00:00
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true
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}
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QueryView::Scheduling(ref mut q) => {
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q.set(gst::SchedulingFlags::SEQUENTIAL, 1, -1, 0);
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q.add_scheduling_modes(&[gst::PadMode::Push]);
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true
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|
|
}
|
|
|
|
QueryView::Caps(ref mut q) => {
|
2020-03-19 18:34:51 +00:00
|
|
|
let caps = if let Some(caps) = self.0.configured_caps.lock().unwrap().as_ref() {
|
2018-04-03 16:40:12 +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())
|
2018-04-03 16:40:12 +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)
|
2018-04-03 16:40:12 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
q.set_result(&caps);
|
|
|
|
|
|
|
|
true
|
|
|
|
}
|
|
|
|
_ => false,
|
|
|
|
};
|
|
|
|
|
|
|
|
if ret {
|
2020-01-06 12:19:11 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Handled {:?}", query);
|
2018-04-03 16:40:12 +00:00
|
|
|
} else {
|
2020-01-06 12:19:11 +00:00
|
|
|
gst_log!(CAT, obj: pad.gst_pad(), "Didn't handle {:?}", query);
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
ret
|
|
|
|
}
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-04-20 19:35:06 +00:00
|
|
|
#[derive(Debug)]
|
|
|
|
struct AppSrcTask {
|
|
|
|
element: gst::Element,
|
|
|
|
src_pad: PadSrcWeak,
|
|
|
|
src_pad_handler: AppSrcPadHandler,
|
|
|
|
receiver: mpsc::Receiver<StreamItem>,
|
|
|
|
}
|
|
|
|
|
|
|
|
impl AppSrcTask {
|
|
|
|
fn new(
|
|
|
|
element: &gst::Element,
|
|
|
|
src_pad: &PadSrc,
|
|
|
|
src_pad_handler: &AppSrcPadHandler,
|
|
|
|
receiver: mpsc::Receiver<StreamItem>,
|
|
|
|
) -> Self {
|
|
|
|
AppSrcTask {
|
|
|
|
element: element.clone(),
|
|
|
|
src_pad: src_pad.downgrade(),
|
|
|
|
src_pad_handler: src_pad_handler.clone(),
|
|
|
|
receiver,
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl AppSrcTask {
|
|
|
|
fn flush(&mut self) {
|
|
|
|
// Purge the channel
|
|
|
|
while let Ok(Some(_item)) = self.receiver.try_next() {}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl TaskImpl for AppSrcTask {
|
|
|
|
fn iterate(&mut self) -> BoxFuture<'_, Result<(), gst::FlowError>> {
|
|
|
|
async move {
|
2020-05-15 17:38:54 +00:00
|
|
|
let item = match self.receiver.next().await {
|
2020-04-20 19:35:06 +00:00
|
|
|
Some(item) => item,
|
|
|
|
None => {
|
|
|
|
gst_error!(CAT, obj: &self.element, "SrcPad channel aborted");
|
|
|
|
gst_element_error!(
|
|
|
|
&self.element,
|
|
|
|
gst::StreamError::Failed,
|
|
|
|
("Internal data stream error"),
|
|
|
|
["streaming stopped, reason: channel aborted"]
|
|
|
|
);
|
|
|
|
return Err(gst::FlowError::Flushing);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
let pad = self.src_pad.upgrade().expect("PadSrc no longer exists");
|
|
|
|
let res = self
|
|
|
|
.src_pad_handler
|
|
|
|
.push_item(&pad, &self.element, item)
|
|
|
|
.await;
|
|
|
|
match res {
|
|
|
|
Ok(_) => {
|
|
|
|
gst_log!(CAT, obj: &self.element, "Successfully pushed item");
|
|
|
|
}
|
|
|
|
Err(gst::FlowError::Eos) => {
|
|
|
|
gst_debug!(CAT, obj: &self.element, "EOS");
|
2020-06-24 22:33:57 +00:00
|
|
|
pad.push_event(gst::event::Eos::new()).await;
|
2020-04-20 19:35:06 +00:00
|
|
|
}
|
|
|
|
Err(gst::FlowError::Flushing) => {
|
|
|
|
gst_debug!(CAT, obj: &self.element, "Flushing");
|
|
|
|
}
|
|
|
|
Err(err) => {
|
|
|
|
gst_error!(CAT, obj: &self.element, "Got error {}", err);
|
|
|
|
gst_element_error!(
|
|
|
|
&self.element,
|
|
|
|
gst::StreamError::Failed,
|
|
|
|
("Internal data stream error"),
|
|
|
|
["streaming stopped, reason {}", err]
|
|
|
|
);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
res.map(drop)
|
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
|
|
|
|
2020-05-15 17:38:54 +00:00
|
|
|
fn stop(&mut self) -> BoxFuture<'_, Result<(), gst::ErrorMessage>> {
|
2020-04-20 19:35:06 +00:00
|
|
|
async move {
|
|
|
|
gst_log!(CAT, obj: &self.element, "Stopping task");
|
|
|
|
|
|
|
|
self.flush();
|
|
|
|
self.src_pad_handler.reset_state().await;
|
|
|
|
|
|
|
|
gst_log!(CAT, obj: &self.element, "Task stopped");
|
2020-05-15 17:38:54 +00:00
|
|
|
Ok(())
|
2020-04-20 19:35:06 +00:00
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
|
|
|
|
2020-05-15 17:38:54 +00:00
|
|
|
fn flush_start(&mut self) -> BoxFuture<'_, Result<(), gst::ErrorMessage>> {
|
2020-04-20 19:35:06 +00:00
|
|
|
async move {
|
|
|
|
gst_log!(CAT, obj: &self.element, "Starting task flush");
|
|
|
|
|
|
|
|
self.flush();
|
|
|
|
self.src_pad_handler.set_need_segment().await;
|
|
|
|
|
|
|
|
gst_log!(CAT, obj: &self.element, "Task flush started");
|
2020-05-15 17:38:54 +00:00
|
|
|
Ok(())
|
2020-04-20 19:35:06 +00:00
|
|
|
}
|
|
|
|
.boxed()
|
|
|
|
}
|
2020-03-19 18:34:51 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#[derive(Debug)]
|
2019-12-02 09:30:07 +00:00
|
|
|
struct AppSrc {
|
|
|
|
src_pad: PadSrc,
|
2020-03-26 18:07:25 +00:00
|
|
|
src_pad_handler: AppSrcPadHandler,
|
|
|
|
task: Task,
|
2020-03-08 18:18:41 +00:00
|
|
|
sender: StdMutex<Option<mpsc::Sender<StreamItem>>>,
|
|
|
|
settings: StdMutex<Settings>,
|
2019-12-02 09:30:07 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
impl AppSrc {
|
2020-03-16 13:01:06 +00:00
|
|
|
fn push_buffer(&self, element: &gst::Element, mut buffer: gst::Buffer) -> bool {
|
2020-04-20 19:35:06 +00:00
|
|
|
let state = self.task.lock_state();
|
|
|
|
if *state != TaskState::Started && *state != TaskState::Paused {
|
|
|
|
gst_debug!(CAT, obj: element, "Rejecting buffer due to element state");
|
2020-03-19 18:34:51 +00:00
|
|
|
return false;
|
|
|
|
}
|
2020-03-08 18:18:41 +00:00
|
|
|
|
|
|
|
let do_timestamp = self.settings.lock().unwrap().do_timestamp;
|
|
|
|
if do_timestamp {
|
2018-04-03 17:03:44 +00:00
|
|
|
if let Some(clock) = element.get_clock() {
|
|
|
|
let base_time = element.get_base_time();
|
|
|
|
let now = clock.get_time();
|
|
|
|
|
|
|
|
let buffer = buffer.make_mut();
|
|
|
|
buffer.set_dts(now - base_time);
|
|
|
|
buffer.set_pts(gst::CLOCK_TIME_NONE);
|
|
|
|
} else {
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_error!(CAT, obj: element, "Don't have a clock yet");
|
2018-04-03 17:03:44 +00:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-03-19 18:34:51 +00:00
|
|
|
match self
|
|
|
|
.sender
|
|
|
|
.lock()
|
|
|
|
.unwrap()
|
|
|
|
.as_mut()
|
|
|
|
.unwrap()
|
|
|
|
.try_send(StreamItem::Buffer(buffer))
|
|
|
|
{
|
2019-12-02 09:30:07 +00:00
|
|
|
Ok(_) => true,
|
|
|
|
Err(err) => {
|
|
|
|
gst_error!(CAT, obj: element, "Failed to queue buffer: {}", err);
|
|
|
|
false
|
2018-04-03 17:03:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-03-16 13:01:06 +00:00
|
|
|
fn end_of_stream(&self, element: &gst::Element) -> bool {
|
2020-03-08 18:18:41 +00:00
|
|
|
let mut sender = self.sender.lock().unwrap();
|
|
|
|
let sender = match sender.as_mut() {
|
2019-12-02 09:30:07 +00:00
|
|
|
Some(sender) => sender,
|
|
|
|
None => return false,
|
2018-04-03 16:40:12 +00:00
|
|
|
};
|
2020-03-19 18:34:51 +00:00
|
|
|
|
2020-06-24 22:33:57 +00:00
|
|
|
match sender.try_send(StreamItem::Event(gst::event::Eos::new())) {
|
2019-12-02 09:30:07 +00:00
|
|
|
Ok(_) => true,
|
2018-04-03 16:40:12 +00:00
|
|
|
Err(err) => {
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_error!(CAT, obj: element, "Failed to queue EOS: {}", err);
|
|
|
|
false
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2019-11-24 20:12:40 +00:00
|
|
|
}
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
|
2020-03-08 18:18:41 +00:00
|
|
|
fn prepare(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
|
|
|
let settings = self.settings.lock().unwrap();
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Preparing");
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-03-08 18:18:41 +00:00
|
|
|
let context =
|
2019-12-02 09:30:07 +00:00
|
|
|
Context::acquire(&settings.context, settings.context_wait).map_err(|err| {
|
2018-11-05 11:43:38 +00:00
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
2019-12-02 09:30:07 +00:00
|
|
|
["Failed to acquire Context: {}", err]
|
2018-11-05 11:43:38 +00:00
|
|
|
)
|
2020-03-08 18:18:41 +00:00
|
|
|
})?;
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-03-26 18:07:25 +00:00
|
|
|
let max_buffers = settings.max_buffers.try_into().map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::Settings,
|
|
|
|
["Invalid max-buffers: {}, {}", settings.max_buffers, err]
|
|
|
|
)
|
|
|
|
})?;
|
|
|
|
|
2020-03-19 18:34:51 +00:00
|
|
|
let (sender, receiver) = mpsc::channel(max_buffers);
|
|
|
|
*self.sender.lock().unwrap() = Some(sender);
|
|
|
|
|
2020-03-26 18:07:25 +00:00
|
|
|
self.src_pad_handler.prepare(settings.caps.clone());
|
2020-03-19 18:34:51 +00:00
|
|
|
|
2020-04-20 19:35:06 +00:00
|
|
|
self.task
|
|
|
|
.prepare(
|
|
|
|
AppSrcTask::new(element, &self.src_pad, &self.src_pad_handler, receiver),
|
|
|
|
context,
|
|
|
|
)
|
|
|
|
.map_err(|err| {
|
|
|
|
gst_error_msg!(
|
|
|
|
gst::ResourceError::OpenRead,
|
|
|
|
["Error preparing Task: {:?}", err]
|
|
|
|
)
|
|
|
|
})?;
|
|
|
|
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Prepared");
|
2018-04-03 16:40:12 +00:00
|
|
|
|
|
|
|
Ok(())
|
|
|
|
}
|
|
|
|
|
2020-04-20 19:35:06 +00:00
|
|
|
fn unprepare(&self, element: &gst::Element) {
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Unpreparing");
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-03-19 18:34:51 +00:00
|
|
|
*self.sender.lock().unwrap() = None;
|
2020-03-26 18:07:25 +00:00
|
|
|
self.task.unprepare().unwrap();
|
2020-03-08 18:18:41 +00:00
|
|
|
|
|
|
|
gst_debug!(CAT, obj: element, "Unprepared");
|
|
|
|
}
|
|
|
|
|
2020-05-15 17:38:54 +00:00
|
|
|
fn stop(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2020-03-08 18:18:41 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Stopping");
|
2020-05-15 17:38:54 +00:00
|
|
|
self.task.stop()?;
|
2020-04-20 19:35:06 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Stopped");
|
2020-05-15 17:38:54 +00:00
|
|
|
Ok(())
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
|
2020-05-15 17:38:54 +00:00
|
|
|
fn start(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Starting");
|
2020-05-15 17:38:54 +00:00
|
|
|
self.task.start()?;
|
2019-10-31 22:34:21 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Started");
|
2020-05-15 17:38:54 +00:00
|
|
|
Ok(())
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
|
2020-05-15 17:38:54 +00:00
|
|
|
fn pause(&self, element: &gst::Element) -> Result<(), gst::ErrorMessage> {
|
2020-03-08 18:18:41 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Pausing");
|
2020-05-15 17:38:54 +00:00
|
|
|
self.task.pause()?;
|
2019-12-02 09:30:07 +00:00
|
|
|
gst_debug!(CAT, obj: element, "Paused");
|
2020-05-15 17:38:54 +00:00
|
|
|
Ok(())
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ObjectSubclass for AppSrc {
|
|
|
|
const NAME: &'static str = "RsTsAppSrc";
|
|
|
|
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 app source",
|
|
|
|
"Source/Generic",
|
|
|
|
"Thread-sharing app 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);
|
|
|
|
|
2019-02-07 07:54:03 +00:00
|
|
|
klass.add_signal_with_class_handler(
|
2018-12-06 11:03:04 +00:00
|
|
|
"push-buffer",
|
2019-02-07 07:54:03 +00:00
|
|
|
glib::SignalFlags::RUN_LAST | glib::SignalFlags::ACTION,
|
2018-12-06 11:03:04 +00:00
|
|
|
&[gst::Buffer::static_type()],
|
|
|
|
bool::static_type(),
|
2019-02-07 07:54:03 +00:00
|
|
|
|_, args| {
|
2019-08-12 22:45:36 +00:00
|
|
|
let element = args[0]
|
|
|
|
.get::<gst::Element>()
|
|
|
|
.expect("signal arg")
|
|
|
|
.expect("missing signal arg");
|
|
|
|
let buffer = args[1]
|
|
|
|
.get::<gst::Buffer>()
|
|
|
|
.expect("signal arg")
|
|
|
|
.expect("missing signal arg");
|
2018-12-06 11:03:04 +00:00
|
|
|
let appsrc = Self::from_instance(&element);
|
|
|
|
|
2020-03-16 13:01:06 +00:00
|
|
|
Some(appsrc.push_buffer(&element, buffer).to_value())
|
2018-12-06 11:03:04 +00:00
|
|
|
},
|
|
|
|
);
|
|
|
|
|
2019-02-07 07:54:03 +00:00
|
|
|
klass.add_signal_with_class_handler(
|
|
|
|
"end-of-stream",
|
|
|
|
glib::SignalFlags::RUN_LAST | glib::SignalFlags::ACTION,
|
|
|
|
&[],
|
|
|
|
bool::static_type(),
|
|
|
|
|_, args| {
|
2019-08-12 22:45:36 +00:00
|
|
|
let element = args[0]
|
|
|
|
.get::<gst::Element>()
|
|
|
|
.expect("signal arg")
|
|
|
|
.expect("missing signal arg");
|
2019-02-07 07:54:03 +00:00
|
|
|
let appsrc = Self::from_instance(&element);
|
2020-03-16 13:01:06 +00:00
|
|
|
Some(appsrc.end_of_stream(&element).to_value())
|
2019-02-07 07:54:03 +00:00
|
|
|
},
|
|
|
|
);
|
2018-12-06 11:03:04 +00:00
|
|
|
}
|
|
|
|
|
2020-06-16 08:56:48 +00:00
|
|
|
fn with_class(klass: &subclass::simple::ClassStruct<Self>) -> Self {
|
2020-04-29 13:03:43 +00:00
|
|
|
let src_pad_handler = AppSrcPadHandler::default();
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
Self {
|
2020-04-29 13:03:43 +00:00
|
|
|
src_pad: PadSrc::new(
|
2020-06-11 10:45:15 +00:00
|
|
|
gst::Pad::from_template(&klass.get_pad_template("src").unwrap(), Some("src")),
|
2020-04-29 13:03:43 +00:00
|
|
|
src_pad_handler.clone(),
|
|
|
|
),
|
|
|
|
src_pad_handler,
|
2020-03-26 18:07:25 +00:00
|
|
|
task: Task::default(),
|
2020-03-08 18:18:41 +00:00
|
|
|
sender: StdMutex::new(None),
|
|
|
|
settings: StdMutex::new(Settings::default()),
|
2018-12-06 11:03:04 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl ObjectImpl for AppSrc {
|
|
|
|
glib_object_impl!();
|
|
|
|
|
|
|
|
fn set_property(&self, _obj: &glib::Object, id: usize, value: &glib::Value) {
|
|
|
|
let prop = &PROPERTIES[id];
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-03-08 18:18:41 +00:00
|
|
|
let mut settings = self.settings.lock().unwrap();
|
2018-04-03 16:40:12 +00:00
|
|
|
match *prop {
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context", ..) => {
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.context = value
|
|
|
|
.get()
|
|
|
|
.expect("type checked upstream")
|
|
|
|
.unwrap_or_else(|| "".into());
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("context-wait", ..) => {
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.context_wait = value.get_some().expect("type checked upstream");
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("caps", ..) => {
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.caps = value.get().expect("type checked upstream");
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("max-buffers", ..) => {
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.max_buffers = value.get_some().expect("type checked upstream");
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2018-12-06 11:03:04 +00:00
|
|
|
subclass::Property("do-timestamp", ..) => {
|
2019-08-12 22:45:36 +00:00
|
|
|
settings.do_timestamp = value.get_some().expect("type checked upstream");
|
2018-04-03 16:40:12 +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];
|
2018-04-03 16:40:12 +00:00
|
|
|
|
2020-03-08 18:18:41 +00:00
|
|
|
let settings = self.settings.lock().unwrap();
|
2018-04-03 16:40:12 +00:00
|
|
|
match *prop {
|
2020-01-02 21:32:52 +00:00
|
|
|
subclass::Property("context", ..) => Ok(settings.context.to_value()),
|
|
|
|
subclass::Property("context-wait", ..) => Ok(settings.context_wait.to_value()),
|
|
|
|
subclass::Property("caps", ..) => Ok(settings.caps.to_value()),
|
|
|
|
subclass::Property("max-buffers", ..) => Ok(settings.max_buffers.to_value()),
|
|
|
|
subclass::Property("do-timestamp", ..) => Ok(settings.do_timestamp.to_value()),
|
2018-04-03 16:40:12 +00:00
|
|
|
_ => 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
|
|
|
}
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
|
2018-12-06 11:03:04 +00:00
|
|
|
impl ElementImpl for AppSrc {
|
2018-04-03 16:40:12 +00:00
|
|
|
fn change_state(
|
|
|
|
&self,
|
2018-12-06 11:03:04 +00:00
|
|
|
element: &gst::Element,
|
2018-04-03 16:40:12 +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);
|
2018-04-03 16:40:12 +00:00
|
|
|
|
|
|
|
match transition {
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChange::NullToReady => {
|
2020-03-08 18:18:41 +00:00
|
|
|
self.prepare(element).map_err(|err| {
|
2018-04-03 16:40:12 +00:00
|
|
|
element.post_error_message(&err);
|
2019-01-11 23:45:05 +00:00
|
|
|
gst::StateChangeError
|
|
|
|
})?;
|
|
|
|
}
|
|
|
|
gst::StateChange::PlayingToPaused => {
|
2020-05-15 17:38:54 +00:00
|
|
|
self.pause(element).map_err(|_| gst::StateChangeError)?;
|
2019-01-11 23:45:05 +00:00
|
|
|
}
|
|
|
|
gst::StateChange::ReadyToNull => {
|
2020-04-20 19:35:06 +00:00
|
|
|
self.unprepare(element);
|
2019-01-11 23:45:05 +00:00
|
|
|
}
|
2018-04-03 16:40:12 +00:00
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
let mut success = self.parent_change_state(element, transition)?;
|
2018-04-03 16:40:12 +00:00
|
|
|
|
|
|
|
match transition {
|
|
|
|
gst::StateChange::ReadyToPaused => {
|
2019-01-11 23:45:05 +00:00
|
|
|
success = gst::StateChangeSuccess::NoPreroll;
|
|
|
|
}
|
|
|
|
gst::StateChange::PausedToPlaying => {
|
2020-05-15 17:38:54 +00:00
|
|
|
self.start(element).map_err(|_| gst::StateChangeError)?;
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
2020-01-23 14:56:11 +00:00
|
|
|
gst::StateChange::PlayingToPaused => {
|
|
|
|
success = gst::StateChangeSuccess::NoPreroll;
|
|
|
|
}
|
2018-04-03 16:40:12 +00:00
|
|
|
gst::StateChange::PausedToReady => {
|
2020-05-15 17:38:54 +00:00
|
|
|
self.stop(element).map_err(|_| gst::StateChangeError)?;
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
_ => (),
|
|
|
|
}
|
|
|
|
|
2019-01-11 23:45:05 +00:00
|
|
|
Ok(success)
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-11-05 11:43:38 +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-appsrc",
|
|
|
|
gst::Rank::None,
|
|
|
|
AppSrc::get_type(),
|
|
|
|
)
|
2018-04-03 16:40:12 +00:00
|
|
|
}
|