diff options
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/BasicTutorial9.cs | 180 | ||||
| -rw-r--r-- | samples/Makefile.am | 8 |
2 files changed, 186 insertions, 2 deletions
diff --git a/samples/BasicTutorial9.cs b/samples/BasicTutorial9.cs new file mode 100644 index 0000000..85a58e2 --- /dev/null +++ b/samples/BasicTutorial9.cs @@ -0,0 +1,180 @@ +// Authors +// Copyright (C) 2014 Stephan Sundermann <stephansundermann@gmail.com> + +using System; +using Gst; +using Gst.PbUtils; +using System.Runtime.InteropServices; + +namespace GstreamerSharp +{ + class Playback + { + static Discoverer Discoverer; + static GLib.MainLoop MainLoop; + + // Print a tag in a human-readable format (name: value) + static void PrintTagForeach (TagList tags, string tag, int depth) { + var val = GLib.Value.Empty; + + TagList.CopyValue (ref val, tags, tag); + + string str; + if (val.Val is string) + str = (string)val.Val; + else + str = Value.Serialize (val); + + Console.WriteLine ("{0}{1}: {2}", new string(' ', 2 * depth), Tag.GetNick (tag), str); + } + + // Print information regarding a stream + static void PrintStreamInfo (DiscovererStreamInfo info, int depth) { + + var caps = info.Caps; + + string desc = null; + if (caps != null) { + if (caps.IsFixed) + desc = Gst.PbUtils.Global.PbUtilsGetCodecDescription (caps); + else + desc = caps.ToString (); + } + + Console.WriteLine ("{0}{1}: {2}", new string (' ', 2 * depth), info.StreamTypeNick, (desc != null ? desc : "")); + + var tags = info.Tags; + if (tags != null) { + Console.WriteLine ("{0}Tags:", new string (' ', 2 * (depth + 1))); + tags.Foreach ((TagForeachFunc)delegate (TagList list, string tag) { + PrintTagForeach (list, tag, depth + 2); + }); + } + } + + // Print information regarding a stream and its substreams, if any + static void PrintTopology (DiscovererStreamInfo info, int depth) { + + if (info == null) + return; + + PrintStreamInfo (info, depth); + + var next = info.Next; + if (next != null) { + PrintTopology (next, depth + 1); + } else if (info is DiscovererContainerInfo) { + var streams = ((DiscovererContainerInfo)info).Streams; + foreach (var stream in streams) { + PrintTopology (stream, depth + 1); + } + } + } + + //This function is called every time the discoverer has information regarding one of the URIs we provided. + static void HandleDiscovered (object disc, DiscoveredArgs args) { + var info = args.Info; + var uri = info.Uri; + var result = info.Result; + var discoverer = (Discoverer)disc; + + switch (result) { + case DiscovererResult.UriInvalid: + Console.WriteLine ("Invalid URI '{0}'", uri); + break; + case DiscovererResult.Error: + var err = new GLib.GException (args.Error); + Console.WriteLine ("Discoverer error: {0}", err.Message); + break; + case DiscovererResult.Timeout: + Console.WriteLine ("Timeout"); + break; + case DiscovererResult.Busy: + Console.WriteLine ("Busy"); + break; + case DiscovererResult.MissingPlugins:{ + var s = info.Misc; + + if (s != null) { + Console.WriteLine ("Missing plugins: {0}", s); + } + break; + } + case DiscovererResult.Ok: + Console.WriteLine ("Discovered '{0}'", uri); + break; + } + + if (result != DiscovererResult.Ok) { + Console.WriteLine ("This URI cannot be played"); + return; + } + + // If we got no error, show the retrieved information + Console.WriteLine ("\nDuration: {0}", new TimeSpan((long)info.Duration)); + + var tags = info.Tags; + if (tags != null) { + Console.WriteLine ("Tags:"); + tags.Foreach ((TagForeachFunc)delegate (TagList list, string tag) { + PrintTagForeach (list, tag, 1); + }); + } + + Console.WriteLine ("Seekable: {0}", (info.Seekable ? "yes" : "no")); + + Console.WriteLine (); + + var sinfo = info.StreamInfo; + if (sinfo == null) + return; + + Console.WriteLine ("Stream information:"); + + PrintTopology (sinfo, 1); + + Console.WriteLine (); + } + + public static void Main (string[] args) + { + var uri = "http://download.blender.org/durian/trailer/sintel_trailer-1080p.mp4"; + + // if a URI was provided, use it instead of the default one + if (args.Length > 1) { + uri = args[0]; + } + + // Initialize GStreamer + Gst.Application.Init (ref args); + + Console.WriteLine ("Discovering '{0}'", uri); + + // Instantiate the Discoverer + Discoverer = new Discoverer (5L * Gst.Constants.SECOND); + + // Connect to the interesting signals + Discoverer.Discovered += HandleDiscovered; + Discoverer.Finished += (sender, e) => { + Console.WriteLine ("Finished discovering"); + MainLoop.Quit (); + }; + + // Start the discoverer process (nothing to do yet) + Discoverer.Start (); + + // Add a request to process asynchronously the URI passed through the command line + if (!Discoverer.DiscoverUriAsync (uri)) { + Console.WriteLine ("Failed to start discovering URI '{0}'", uri); + return; + } + + // Create a GLib Main Loop and set it to run, so we can wait for the signals + MainLoop = new GLib.MainLoop (); + MainLoop.Run (); + + // Stop the discoverer process + Discoverer.Stop (); + } + } +}
\ No newline at end of file diff --git a/samples/Makefile.am b/samples/Makefile.am index 3e0a60f..81d2a22 100644 --- a/samples/Makefile.am +++ b/samples/Makefile.am @@ -1,4 +1,4 @@ -TARGETS = playback.exe video-overlay.exe basic-tutorial-1.exe basic-tutorial-2.exe basic-tutorial-3.exe basic-tutorial-4.exe basic-tutorial-5.exe basic-tutorial-6.exe basic-tutorial-7.exe basic-tutorial-8.exe +TARGETS = playback.exe video-overlay.exe basic-tutorial-1.exe basic-tutorial-2.exe basic-tutorial-3.exe basic-tutorial-4.exe basic-tutorial-5.exe basic-tutorial-6.exe basic-tutorial-7.exe basic-tutorial-8.exe basic-tutorial-9.exe DEBUGS = $(addsuffix .mdb, $(TARGETS)) assemblies = \ @@ -39,6 +39,9 @@ basic-tutorial-7.exe: $(srcdir)/BasicTutorial7.cs $(assemblies) basic-tutorial-8.exe: $(srcdir)/BasicTutorial8.cs $(assemblies) $(CSC) $(CSFLAGS) -out:basic-tutorial-8.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial8.cs +basic-tutorial-9.exe: $(srcdir)/BasicTutorial9.cs $(assemblies) + $(CSC) $(CSFLAGS) -out:basic-tutorial-9.exe $(references) $(GLIB_SHARP_LIBS) $(srcdir)/BasicTutorial9.cs + EXTRA_DIST = \ Playback.cs \ VideoOverlay.cs \ @@ -49,4 +52,5 @@ EXTRA_DIST = \ BasicTutorial5.cs \ BasicTutorial6.cs \ BasicTutorial7.cs \ - BasicTutorial8.cs + BasicTutorial8.cs \ + BasicTutorial9.cs |