mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-02-02 04:22:27 +00:00
Samples: Ported overlay sample from 0.10
Hangs on shutdown when playing a video for some reason
This commit is contained in:
Stephan Sundermann
parent
5ac90c0ced
commit
df285b417a
1 changed files with 274 additions and 0 deletions
274
samples/VideoOverlay.cs
Normal file
274
samples/VideoOverlay.cs
Normal file
|
|
@ -0,0 +1,274 @@
|
|||
// Authors
|
||||
// Copyright (C) 2008 Paul Burton <paulburton89@gmail.com>
|
||||
// Copyright (C) 2010 Andoni Morales <ylatuya@gmail.com>
|
||||
// Copyright (C) 2013 Stephan Sundermann <stephansundermann@gmail.com>
|
||||
|
||||
using System;
|
||||
using System;
|
||||
using System.Runtime.InteropServices;
|
||||
|
||||
using Gtk;
|
||||
using Gst;
|
||||
using Gst.Video;
|
||||
using Gst.Base;
|
||||
|
||||
namespace Gstreameroverlay
|
||||
{
|
||||
public class MainWindow : Gtk.Window {
|
||||
DrawingArea _da;
|
||||
ulong _xWindowId;
|
||||
Element _playbin;
|
||||
HScale _scale;
|
||||
Label _lbl;
|
||||
bool _updatingScale;
|
||||
bool _pipelineOK = false;
|
||||
|
||||
public static void Main (string[] args) {
|
||||
if (System.Environment.OSVersion.Platform == PlatformID.Unix)
|
||||
XInitThreads ();
|
||||
|
||||
Gtk.Application.Init ();
|
||||
Gst.Application.Init ();
|
||||
MainWindow window = new MainWindow ();
|
||||
window.ShowAll ();
|
||||
|
||||
switch (System.Environment.OSVersion.Platform) {
|
||||
case PlatformID.Unix:
|
||||
window._xWindowId = gdk_x11_window_get_xid (window._da.GdkWindow.Handle);
|
||||
break;
|
||||
case PlatformID.Win32NT:
|
||||
case PlatformID.Win32S:
|
||||
case PlatformID.Win32Windows:
|
||||
case PlatformID.WinCE:
|
||||
window._xWindowId = (ulong) gdk_win32_drawable_get_handle (window._da.GdkWindow.Handle);
|
||||
break;
|
||||
}
|
||||
|
||||
Gtk.Application.Run ();
|
||||
}
|
||||
|
||||
public MainWindow ()
|
||||
: base ("Overlaytest") {
|
||||
VBox vBox = new VBox ();
|
||||
|
||||
_da = new DrawingArea ();
|
||||
_da.ModifyBg (Gtk.StateType.Normal, new Gdk.Color (0, 0, 0));
|
||||
_da.SetSizeRequest (400, 300);
|
||||
_da.DoubleBuffered = false;
|
||||
vBox.PackStart (_da, false, false, 0);
|
||||
|
||||
_scale = new HScale (0, 1, 0.01);
|
||||
_scale.DrawValue = false;
|
||||
_scale.ValueChanged += ScaleValueChanged;
|
||||
vBox.PackStart (_scale, false, false, 0);
|
||||
|
||||
HBox hBox = new HBox ();
|
||||
|
||||
Button btnOpen = new Button ();
|
||||
btnOpen.Label = "Open";
|
||||
btnOpen.Clicked += ButtonOpenClicked;
|
||||
|
||||
hBox.PackStart (btnOpen, false, false, 0);
|
||||
|
||||
Button btnPlay = new Button ();
|
||||
btnPlay.Label = "Play";
|
||||
btnPlay.Clicked += ButtonPlayClicked;
|
||||
|
||||
hBox.PackStart (btnPlay, false, false, 0);
|
||||
|
||||
Button btnPause = new Button ();
|
||||
btnPause.Label = "Pause";
|
||||
btnPause.Clicked += ButtonPauseClicked;
|
||||
|
||||
hBox.PackStart (btnPause, false, false, 0);
|
||||
|
||||
_lbl = new Label ();
|
||||
_lbl.Text = "00:00 / 00:00";
|
||||
|
||||
hBox.PackEnd (_lbl, false, false, 0);
|
||||
|
||||
vBox.PackStart (hBox, false, false, 3);
|
||||
|
||||
Add (vBox);
|
||||
|
||||
WindowPosition = Gtk.WindowPosition.Center;
|
||||
DeleteEvent += OnDeleteEvent;
|
||||
|
||||
GLib.Timeout.Add (1000, new GLib.TimeoutHandler (UpdatePos));
|
||||
}
|
||||
|
||||
void OnDeleteEvent (object sender, DeleteEventArgs args) {
|
||||
Gtk.Application.Quit ();
|
||||
|
||||
|
||||
if (_playbin != null) {
|
||||
_playbin.SetState (Gst.State.Null);
|
||||
_playbin.Dispose ();
|
||||
_playbin = null;
|
||||
}
|
||||
|
||||
args.RetVal = true;
|
||||
}
|
||||
|
||||
void ButtonOpenClicked (object sender, EventArgs args) {
|
||||
FileChooserDialog dialog = new FileChooserDialog ("Open", this, FileChooserAction.Open, new object[] { "Cancel", ResponseType.Cancel, "Open", ResponseType.Accept });
|
||||
dialog.SetCurrentFolder (Environment.GetFolderPath (Environment.SpecialFolder.Personal));
|
||||
|
||||
if (dialog.Run () == (int) ResponseType.Accept) {
|
||||
_pipelineOK = false;
|
||||
|
||||
if (_playbin != null) {
|
||||
_playbin.SetState (Gst.State.Null);
|
||||
} else {
|
||||
_playbin = ElementFactory.Make ("playbin", "playbin");
|
||||
}
|
||||
|
||||
_scale.Value = 0;
|
||||
|
||||
if (_playbin == null)
|
||||
Console.WriteLine ("Unable to create element 'playbin'");
|
||||
|
||||
_playbin.Bus.EnableSyncMessageEmission ();
|
||||
_playbin.Bus.AddSignalWatch ();
|
||||
|
||||
_playbin.Bus.SyncMessage += delegate (object bus, SyncMessageArgs sargs) {
|
||||
Gst.Message msg = sargs.Message;
|
||||
|
||||
if (!Gst.Video.GlobalVideo.IsVideoOverlayPrepareWindowHandleMessage (msg))
|
||||
return;
|
||||
|
||||
Element src = msg.Src as Element;
|
||||
if (src == null)
|
||||
return;
|
||||
|
||||
try {
|
||||
src["force-aspect-ratio"] = true;
|
||||
}
|
||||
catch (PropertyNotFoundException) {}
|
||||
Element overlay = null;
|
||||
if(src is Gst.Bin)
|
||||
overlay = ((Gst.Bin) src).GetByInterface (VideoOverlayAdapter.GType);
|
||||
|
||||
VideoOverlayAdapter adapter = new VideoOverlayAdapter (overlay.Handle);
|
||||
adapter.WindowHandle = _xWindowId;
|
||||
adapter.HandleEvents (true);
|
||||
};
|
||||
|
||||
_playbin.Bus.Message += delegate (object bus, MessageArgs margs) {
|
||||
Message message = margs.Message;
|
||||
|
||||
switch (message.Type) {
|
||||
case Gst.MessageType.Error:
|
||||
GLib.GException err;
|
||||
string msg;
|
||||
|
||||
message.ParseError (out err, out msg);
|
||||
Console.WriteLine (String.Format ("Error message: {0}", msg));
|
||||
_pipelineOK = false;
|
||||
break;
|
||||
case Gst.MessageType.Eos:
|
||||
Console.WriteLine ("EOS");
|
||||
break;
|
||||
}
|
||||
};
|
||||
|
||||
switch (System.Environment.OSVersion.Platform) {
|
||||
case PlatformID.Unix:
|
||||
_playbin["uri"] = "file://" + dialog.Filename;
|
||||
break;
|
||||
case PlatformID.Win32NT:
|
||||
case PlatformID.Win32S:
|
||||
case PlatformID.Win32Windows:
|
||||
case PlatformID.WinCE:
|
||||
_playbin["uri"] = "file:///" + dialog.Filename.Replace("\\","/");
|
||||
break;
|
||||
}
|
||||
|
||||
StateChangeReturn sret = _playbin.SetState (Gst.State.Playing);
|
||||
|
||||
if (sret == StateChangeReturn.Async) {
|
||||
State state, pending;
|
||||
sret = _playbin.GetState (out state, out pending, Constants.SECOND * 5L);
|
||||
}
|
||||
|
||||
if (sret == StateChangeReturn.Success) {
|
||||
Console.WriteLine ("State change successful");
|
||||
_pipelineOK = true;
|
||||
} else {
|
||||
Console.WriteLine ("State change failed for {0} ({1})\n", dialog.Filename, sret);
|
||||
}
|
||||
}
|
||||
|
||||
dialog.Destroy ();
|
||||
}
|
||||
|
||||
void ButtonPlayClicked (object sender, EventArgs args) {
|
||||
if ( (_playbin != null) && _pipelineOK)
|
||||
_playbin.SetState (Gst.State.Playing);
|
||||
}
|
||||
|
||||
void ButtonPauseClicked (object sender, EventArgs args) {
|
||||
if ( (_playbin != null) && _pipelineOK)
|
||||
_playbin.SetState (Gst.State.Paused);
|
||||
}
|
||||
|
||||
void ScaleValueChanged (object sender, EventArgs args) {
|
||||
if (_updatingScale)
|
||||
return;
|
||||
|
||||
long duration;
|
||||
Gst.Format fmt = Gst.Format.Time;
|
||||
Console.WriteLine ("Trying to seek");
|
||||
|
||||
if ( (_playbin != null) && _pipelineOK && _playbin.QueryDuration (fmt, out duration) && duration != -1) {
|
||||
long pos = (long) (duration * _scale.Value);
|
||||
Console.WriteLine ("Seek to {0}/{1} ({2}%)", pos, duration, _scale.Value);
|
||||
|
||||
bool ret = _playbin.SeekSimple (Format.Time, SeekFlags.Flush | SeekFlags.KeyUnit, pos);
|
||||
|
||||
Console.WriteLine ("Seeked {0}successfully", (ret ? "" : "not "));
|
||||
}
|
||||
}
|
||||
|
||||
bool UpdatePos () {
|
||||
Gst.Format fmt = Gst.Format.Time;
|
||||
long duration, pos;
|
||||
pos = 0;
|
||||
if ( (_playbin != null) && _pipelineOK &&
|
||||
_playbin.QueryDuration (fmt, out duration) &&
|
||||
_playbin.QueryPosition (fmt, out pos)) {
|
||||
_lbl.Text = string.Format ("{0} / {1}", TimeString (pos), TimeString (duration));
|
||||
|
||||
_updatingScale = true;
|
||||
_scale.Value = (double) pos / duration;
|
||||
_updatingScale = false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
string TimeString (long t) {
|
||||
long secs = t / 1000000000;
|
||||
int mins = (int) (secs / 60);
|
||||
secs = secs - (mins * 60);
|
||||
|
||||
if (mins >= 60) {
|
||||
int hours = (int) (mins / 60);
|
||||
mins = mins - (hours * 60);
|
||||
|
||||
return string.Format ("{0}:{1:d2}:{2:d2}", hours, mins, secs);
|
||||
}
|
||||
|
||||
return string.Format ("{0}:{1:d2}", mins, secs);
|
||||
}
|
||||
|
||||
[DllImport ("libgdk-3.so.0") ]
|
||||
static extern uint gdk_x11_window_get_xid (IntPtr handle);
|
||||
|
||||
[DllImport ("libgdk-win32-3.0-0.dll") ]
|
||||
static extern IntPtr gdk_win32_drawable_get_handle (IntPtr handle);
|
||||
|
||||
[DllImport ("libX11.so.6")]
|
||||
static extern int XInitThreads ();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue