Author: khaled
Date: 2006-08-29 03:28:18 -0400 (Tue, 29 Aug 2006)
New Revision: 64506
Added:
branches/abock/gstreamer-sharp/sample/MetaData.cs
Modified:
branches/abock/gstreamer-sharp/ChangeLog
branches/abock/gstreamer-sharp/sample/Makefile.am
Log:
Added a new sample - sample/MetaData.cs
Modified: branches/abock/gstreamer-sharp/ChangeLog
===================================================================
--- branches/abock/gstreamer-sharp/ChangeLog 2006-08-29 02:48:25 UTC (rev
64505)
+++ branches/abock/gstreamer-sharp/ChangeLog 2006-08-29 07:28:18 UTC (rev
64506)
@@ -1,3 +1,7 @@
+2006-08-29 Khaled Mohammed <[EMAIL PROTECTED]>
+ * sample/MetaData.cs: a sample file which extracts tag information
+ from media files and displays them to console.
+
2006-08-25 Khaled Mohammed <[EMAIL PROTECTED]>
* sample/QueueExample.cs: a sample file showcasing
use of the queue element
Modified: branches/abock/gstreamer-sharp/sample/Makefile.am
===================================================================
--- branches/abock/gstreamer-sharp/sample/Makefile.am 2006-08-29 02:48:25 UTC
(rev 64505)
+++ branches/abock/gstreamer-sharp/sample/Makefile.am 2006-08-29 07:28:18 UTC
(rev 64506)
@@ -22,6 +22,9 @@
queueexample.exe: $(srcdir)/QueueExample.cs $(assemblies)
$(CSC) -out:$@ $(GLIBSHARP_LIBS) $(references) $(srcdir)/QueueExample.cs
+metadata.exe: $(srcdir)/MetaData.cs $(assemblies)
+ $(CSC) -out:$@ $(GLIBSHARP_LIBS) $(references) $(srcdir)/MetaData.cs
+
link:
ln -sf $(top_builddir)/gstreamer-sharp/gstreamer-sharp.dll
gstreamer-sharp.dll
ln -sf $(top_builddir)/gstreamer-sharp/gstreamer-sharp.dll.config
gstreamer-sharp.dll.config
Added: branches/abock/gstreamer-sharp/sample/MetaData.cs
===================================================================
--- branches/abock/gstreamer-sharp/sample/MetaData.cs 2006-08-29 02:48:25 UTC
(rev 64505)
+++ branches/abock/gstreamer-sharp/sample/MetaData.cs 2006-08-29 07:28:18 UTC
(rev 64506)
@@ -0,0 +1,153 @@
+//
+// Authors
+// Khaled Mohammed ([EMAIL PROTECTED])
+//
+// (C) 2006
+//
+
+using Gst;
+using System;
+
+public class MetaData
+{
+
+ static Element pipeline = null;
+ static Element source = null;
+
+ static void PrintTag( TagList list, string tag) {
+ uint count = list.GetTagSize(tag);
+
+ for(uint i =0; i < count; i++)
+ {
+ string str;
+ if(Tag.GetGType(tag) == GLib.GType.String) {
+ if(!list.GetStringIndex(tag, i, out str))
+
Console.Error.WriteLine("g_assert_not_reached()???");
+ } else {
+ str = (String) list.GetValueIndex(tag, i).Val;
+ }
+
+ if(i == 0)
+ Console.WriteLine("{0}:\t {1}",
Tag.GetNick(tag), str);
+ else
+ Console.WriteLine("\t{0}", str);
+ }
+ }
+
+ static bool MessageLoop(Element element, TagList tags)
+ {
+ Bus bus = element.Bus;
+ bool done = false;
+
+ while(!done) {
+ Message message = bus.Pop();
+ if(message == null)
+ break;
+
+ switch(message.Type) {
+ case MessageType.Error:
+ message.Dispose();
+ return true;
+ case MessageType.Eos:
+ message.Dispose();
+ return true;
+ case MessageType.Tag: {
+ TagList new_tags = new TagList();
+ message.ParseTag(new_tags);
+ if(tags != null) {
+ tags = tags.Merge(new_tags,
TagMergeMode.KeepAll);
+ }
+ else {
+ tags = new_tags;
+ }
+ new_tags.Dispose();
+ break;
+ }
+ default:
+ break;
+ }
+ message.Dispose();
+ }
+ bus.Dispose();
+ return true;
+ }
+
+ static void MakePipeline()
+ {
+ Element decodebin;
+
+ if(pipeline != null) {
+ pipeline.Dispose();
+ }
+
+ pipeline = new Pipeline(String.Empty);
+ source = ElementFactory.Make("filesrc", "source");
+ decodebin = ElementFactory.Make("decodebin", "decodebin");
+
+ Bin bin = (Bin) pipeline;
+ bin.AddMany(source, decodebin);
+ source.Link(decodebin);
+ decodebin.Dispose();
+ }
+
+ public static void Main(string [] args)
+ {
+ Application.Init();
+
+ if(args.Length < 1)
+ {
+ Console.Error.WriteLine("Please give filenames to read
metadata from\n\n");
+ return;
+ }
+
+ MakePipeline();
+
+ int i=-1;
+ while(++i < args.Length)
+ {
+ State state, pending;
+ TagList tags = null;
+
+ string filename = args[i];
+ source.SetProperty("location", filename);
+
+ StateChangeReturn sret =
pipeline.SetState(State.Paused);
+
+ if(sret == StateChangeReturn.Async) {
+ if(StateChangeReturn.Success !=
pipeline.GetState(out state, out pending, Clock.Second * 5)) {
+ Console.Error.WriteLine("State change
failed for {0}. Aborting\n", filename);
+ break;
+ }
+ } else if(sret != StateChangeReturn.Success) {
+ Console.Error.WriteLine("{0} - Could not read
file\n", filename);
+ continue;
+ }
+
+ if(!MessageLoop(pipeline, tags)) {
+ Console.Error.WriteLine("Failed in message
reading for {0}", args[i]);
+ }
+
+ if(tags != null) {
+ Console.WriteLine("Metadata for {0}:", args[i]);
+ tags.Foreach(PrintTag);
+ tags.Dispose();
+ tags = null;
+ } else Console.Error.WriteLine("No metadata found for
{0}", args[0]);
+
+ sret = pipeline.SetState(State.Null);
+
+ if(StateChangeReturn.Async == sret) {
+ if(StateChangeReturn.Failure ==
pipeline.GetState(out state, out pending, Clock.TimeNone)) {
+ Console.Error.WriteLine("State change
failed. Aborting");
+ }
+ }
+ }
+
+ if(pipeline != null)
+ {
+ pipeline.Dispose();
+ }
+
+ }
+}
+
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