Projects/Vocaluxe
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gstreamer-sharp: Better error handling

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Stephan Sundermann authored and Florian Küpper committed 2013-12-26 13:03:20 +01:00
1 parent ca8fe42a30
commit deabae991a
1 file changed
+49 -19
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Vocaluxe/Lib/Sound/CGstreamerSharpAudio.cs
+49 -19
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@@ -6,6 +6,7 @@ using Gst;
using GLib;
using System.Runtime.InteropServices;
using System.Diagnostics;
using Vocaluxe.Base;
namespace Vocaluxe.Lib.Sound
{
@@ -215,15 +216,27 @@ namespace Vocaluxe.Lib.Sound
var convert = ElementFactory.Make("audioconvert", "convert");
var audiosink = ElementFactory.Make("directsoundsink", "audiosink");
var audioSinkBin = new Bin("Audiosink");
if (convert == null || audiosink == null || audioSinkBin == null)
CLog.LogError("Could not create pipeline");
audioSinkBin.Add(convert);
audioSinkBin.Add(audiosink);
convert.Link(audiosink);
Pad pad = convert.GetStaticPad("sink");
GhostPad ghostpad = new GhostPad("sink", pad);
ghostpad.SetActive(true);
audioSinkBin.AddPad(ghostpad);
if (pad == null || ghostpad == null)
CLog.LogError("Could not create pads");
if (!ghostpad.SetActive(true))
CLog.LogError("Could not link pads");
if (!audioSinkBin.AddPad(ghostpad))
CLog.LogError("Could not add pad");
_Element = ElementFactory.Make("playbin", "playbin");
if (_Element == null)
CLog.LogError("Could not create playbin");
_Element["audio-sink"] = audioSinkBin;
_Element["flags"] = 1 << 1;
_Element["uri"] = new Uri(media).AbsoluteUri;
@@ -243,27 +256,39 @@ namespace Vocaluxe.Lib.Sound
else
Close();
break;
case MessageType.Error:
GException error;
string debug;
msg.ParseError(out error, out debug);
CLog.LogError("Gstreamer error: message" + error.Message + ", code" + error.Code + " ,debug information" + debug);
break;
}
msg.Unref();
}
public void Close()
{
_Element.SetState(State.Null);
if (_Element != null)
{
_Element.SetState(State.Null);
_Element.Dispose();
}
_Closed = true;
_Finished = true;
//_Element.Dispose();
}
public void Play(bool loop = false)
{
_Element.SetState(State.Playing);
if (_Element != null)
_Element.SetState(State.Playing);
this._Loop = loop;
}
public void Stop()
{
_Element.SetState(State.Null);
if (_Element != null)
_Element.SetState(State.Null);
Position = 0;
}
@@ -291,13 +316,13 @@ namespace Vocaluxe.Lib.Sound
{
get
{
return (float)(double)_Element["volume"];
return _Element != null ? (float)(double)_Element["volume"] : 0;
}
set
{
_Volume = value;
_Element["volume"] = (double) ((value / 100d) * (_MaxVolume / 100d));
Console.WriteLine((double) (value / 100d * (_MaxVolume / 100d)));
if (_Element != null)
_Element["volume"] = (double) ((value / 100d) * (_MaxVolume / 100d));
}
}
@@ -318,8 +343,10 @@ namespace Vocaluxe.Lib.Sound
{
get
{
long duration;
_Element.QueryDuration(Format.Time, out duration);
long duration = 0;
if (_Element != null)
if (!_Element.QueryDuration(Format.Time, out duration))
CLog.LogError("Could not query duration");
return duration > 0 ? (duration / (long)Constants.SECOND) : 100;
}
}
@@ -328,13 +355,16 @@ namespace Vocaluxe.Lib.Sound
{
get
{
long position;
_Element.QueryPosition(Format.Time, out position);
long position = 0;
if (_Element != null)
if (!_Element.QueryPosition(Format.Time, out position))
CLog.LogError("Could not query position");
return (float)(position / (double)Constants.SECOND);
}
set
{
_Element.SeekSimple(Format.Time, SeekFlags.Accurate | SeekFlags.Flush, (long)(value * (double)Constants.SECOND));
if (_Element != null)
_Element.SeekSimple(Format.Time, SeekFlags.Accurate | SeekFlags.Flush, (long)(value * (double)Constants.SECOND));
}
}
@@ -342,11 +372,11 @@ namespace Vocaluxe.Lib.Sound
{
get
{
return _Element.CurrentState == State.Paused;
return _Element != null ? _Element.CurrentState == State.Paused : true;
}
set
{
if (value)
if (value && _Element != null)
_Element.SetState(State.Paused);
}
}
@@ -355,18 +385,18 @@ namespace Vocaluxe.Lib.Sound
{
get
{
return _Element.CurrentState == State.Playing;
return _Element != null ? _Element.CurrentState == State.Playing : false;
}
set
{
if(value)
if(value && _Element != null)
_Element.SetState(State.Playing);
}
}
public void Update()
{
while (_Element.Bus.HavePending())
while (_Element != null && _Element.Bus != null && _Element.Bus.HavePending())
{
OnMessage(_Element.Bus.Pop());
}