mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-02 06:31:08 +00:00
Fix Gst.Element bindings
Still missing: Support for creating new element subclasses and adding pad templates/setting details on them.
This commit is contained in:
Sebastian Dröge
parent
f536534214
commit
15ae032d0a
3 changed files with 208 additions and 67 deletions
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@ -1,65 +1,7 @@
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public object this[string property] {
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get {
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return GetProperty (property).Val;
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}
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set {
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SetProperty (property, value);
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}
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}
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public new GLib.Value GetProperty (string propertyName) {
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return base.GetProperty (propertyName);
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}
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public new void SetProperty (string propertyName, GLib.Value value) {
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base.SetProperty (propertyName, value);
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}
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public void SetProperty (string propertyName, object value) {
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base.SetProperty (propertyName, new GLib.Value (value));
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}
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public void SetProperty (string propertyName, string value) {
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base.SetProperty (propertyName, new GLib.Value (value));
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}
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public void SetProperty (string propertyName, int value) {
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base.SetProperty (propertyName, new GLib.Value (value));
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}
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public void SetProperty (string propertyName, double value) {
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base.SetProperty (propertyName, new GLib.Value (value));
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}
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public void SetProperty (string propertyName, bool value) {
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base.SetProperty (propertyName, new GLib.Value (value));
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}
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public bool QueryPosition (Gst.Format format, out long current) {
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return gst_element_query_position (Handle, ref format, out current);
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}
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public bool QueryDuration (Gst.Format format, out long duration) {
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return gst_element_query_duration (Handle, ref format, out duration);
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}
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public void Connect (string signal, DynamicSignalHandler handler) {
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DynamicSignal.Connect (this, signal, handler);
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}
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public void Disconnect (string signal, DynamicSignalHandler handler) {
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DynamicSignal.Disconnect (this, signal, handler);
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}
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public object Emit (string signal, params object[] parameters) {
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return DynamicSignal.Emit (this, signal, parameters);
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}
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[DllImport ("gobject-2.0-0.dll") ]
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static extern IntPtr g_object_ref (IntPtr raw);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern bool gst_element_add_pad (IntPtr raw, IntPtr pad);
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public bool AddPad (Pad p) {
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bool ret = gst_element_add_pad (this.Handle, p == null ? IntPtr.Zero : p.Handle);
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@ -83,12 +25,169 @@ public static void UnlinkMany (params Element [] elements) {
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}
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}
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[DllImport ("gstreamer-0.10.dll") ]
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static extern int gst_iterator_next (IntPtr iterator, out IntPtr elem);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern void gst_iterator_resync (IntPtr iterator);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern void gst_iterator_free (IntPtr iterator);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_element_iterate_pads (IntPtr element);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_element_iterate_src_pads (IntPtr element);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_element_iterate_sink_pads (IntPtr element);
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private class PadEnumerable : IEnumerable {
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private class PadEnumerator : IEnumerator {
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Hashtable seen = new Hashtable ();
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IntPtr iterator;
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private object current = null;
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public object Current {
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get {
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return current;
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}
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}
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public bool MoveNext () {
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IntPtr raw_ret;
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bool retry = false;
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do {
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int ret = gst_iterator_next (iterator, out raw_ret);
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switch (ret) {
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case 0:
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return false;
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case 1:
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if (seen.Contains (raw_ret)) {
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retry = true;
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break;
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}
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seen.Add (raw_ret, null);
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current = GLib.Object.GetObject (raw_ret, true);
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return true;
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case 2:
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gst_iterator_resync (iterator);
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break;
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default:
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case 3:
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throw new Exception ("Error while iterating pads");
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}
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} while (retry);
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return false;
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}
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public void Reset () {
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seen.Clear ();
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gst_iterator_resync (iterator);
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}
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public PadEnumerator (IntPtr iterator) {
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this.iterator = iterator;
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}
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}
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private IntPtr iterator;
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private PadEnumerator enumerator;
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public PadEnumerable (IntPtr iterator) {
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this.iterator = iterator;
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this.enumerator = new PadEnumerator (iterator);
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}
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public IEnumerator GetEnumerator () {
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return enumerator;
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}
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~PadEnumerable () {
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gst_iterator_free (iterator);
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}
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}
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public IEnumerable Pads {
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get {
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return new PadEnumerable (gst_element_iterate_pads (Handle));
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}
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}
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public IEnumerable SinkPads {
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get {
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return new PadEnumerable (gst_element_iterate_sink_pads (Handle));
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}
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}
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public IEnumerable SrcPads {
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get {
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return new PadEnumerable (gst_element_iterate_src_pads (Handle));
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}
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}
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public Gst.StateChangeReturn GetState (out Gst.State state, ulong timeout) {
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Gst.State pending;
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return GetState (out state, out pending, timeout);
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}
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[DllImport ("gstreamer-0.10.dll") ]
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private static extern bool gst_element_query_position (IntPtr raw, ref Format format, out long cur);
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static extern void gst_element_found_tags (IntPtr raw, IntPtr list);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_tag_list_copy (IntPtr raw);
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public void FoundTags (Gst.TagList list) {
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gst_element_found_tags (Handle, list == null ? IntPtr.Zero : gst_tag_list_copy (list.Handle));
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}
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[DllImport ("gstreamer-0.10.dll") ]
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private static extern bool gst_element_query_duration (IntPtr raw, ref Format format, out long duration);
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static extern void gst_element_found_tags_for_pad (IntPtr raw, IntPtr pad, IntPtr list);
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public void FoundTagsForPad (Gst.Pad pad, Gst.TagList list) {
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gst_element_found_tags_for_pad (Handle, pad == null ? IntPtr.Zero : pad.Handle, list == null ? IntPtr.Zero : gst_tag_list_copy (list.Handle));
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}
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[DllImport ("gstreamer-0.10.dll") ]
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static extern bool gst_element_add_pad (IntPtr raw, IntPtr pad);
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static extern bool gst_element_post_message (IntPtr raw, IntPtr message);
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_mini_object_ref (IntPtr raw);
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public bool PostMessage (Gst.Message message) {
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bool raw_ret = gst_element_post_message (Handle, message == null ? IntPtr.Zero : gst_mini_object_ref (message.Handle));
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bool ret = raw_ret;
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return ret;
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}
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[DllImport ("gstreamer-0.10.dll") ]
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static extern IntPtr gst_element_get_query_types (IntPtr raw);
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public Gst.QueryType[] GetQueryTypes () {
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IntPtr raw_ret = gst_element_get_query_types (Handle);
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if (raw_ret == IntPtr.Zero)
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return new Gst.QueryType[] {};
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ArrayList result = new ArrayList ();
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bool term = false;
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int ofs = 0;
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while (!term) {
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Gst.QueryType t = (Gst.QueryType) Marshal.ReadInt32 (raw_ret, ofs);
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if (t == Gst.QueryType.None) {
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term = true;
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} else {
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result.Add (t);
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ofs += 4;
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}
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}
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return (Gst.QueryType[]) result.ToArray (typeof (Gst.QueryType));
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}
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[DllImport("gstreamer-0.10.dll")]
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static extern bool gst_element_send_event(IntPtr raw, IntPtr evnt);
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public bool SendEvent(Gst.Event evnt) {
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bool raw_ret = gst_element_send_event(Handle, evnt == null ? IntPtr.Zero : gst_mini_object_ref (evnt.Handle));
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bool ret = raw_ret;
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return ret;
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}
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@ -249,13 +249,34 @@
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<attr path="/api/namespace/class[@name='Debug']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@name='LinkMany']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@name='UnlinkMany']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_link_many']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/field" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_unlink_many']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_add_pad']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_pad']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/signal[@name='NoMorePads']" name="name">HasNoMorePads</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@name='ContinueState']/parameters/*[@name='ret']" name="name">state_change_ret</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@name='QueryPosition']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@name='QueryDuration']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_query_position']/parameters/parameter[@name='format']" name="pass_as">ref</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_query_duration']/parameters/parameter[@name='format']" name="pass_as">ref</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_query_convert']/parameters/parameter[@name='dest_format']" name="pass_as">ref</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_compatible_pad']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_request_pad']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_static_pad']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_bus']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_clock']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_get_index']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_provide_clock']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_requires_clock']" name="name">GetRequiresClock</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_provides_clock']" name="name">GetProvidesClock</attr>
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<move-node path="/api/namespace/object[@name='Element']/method[@cname='gst_element_state_get_name']">/api/namespace/class[@name='Util']</move-node>
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<move-node path="/api/namespace/object[@name='Element']/method[@cname='gst_element_state_change_return_get_name']">/api/namespace/class[@name='Util']</move-node>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_found_tags']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_found_tags_for_pad']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_message_full']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_post_message']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_send_event']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@name='Element']/method[@cname='gst_element_seek_simple']" name="name">Seek</attr>
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<remove-attr path="/api/namespace/object[@name='Element']/field[@name='CurrentState']" name="hidden"/>
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<attr path="/api/namespace/object[@name='ElementFactory']/method[@name='Make']/return-type" name="owned">true</attr>
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<attr path="/api/namespace/object[@name='ElementFactory']/method[@name='Create']/return-type" name="owned">true</attr>
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@ -1,3 +1,24 @@
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public object this[string property] {
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get {
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return GetProperty (property).Val;
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}
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set {
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SetProperty (property, new GLib.Value (value));
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}
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}
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public void Connect (string signal, DynamicSignalHandler handler) {
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DynamicSignal.Connect (this, signal, handler);
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}
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public void Disconnect (string signal, DynamicSignalHandler handler) {
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DynamicSignal.Disconnect (this, signal, handler);
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}
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public object Emit (string signal, params object[] parameters) {
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return DynamicSignal.Emit (this, signal, parameters);
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}
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[DllImport ("gstreamer-0.10.dll") ]
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static extern void gst_object_sink (IntPtr raw);
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[DllImport ("gstreamer-0.10.dll") ]
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