gst/interleave/deinterleave.*: Don't set a getcaps() function on the src pads as it's not required and the default ge...

Original commit message from CVS:
* gst/interleave/deinterleave.c: (gst_deinterleave_base_init),
(gst_deinterleave_class_init), (gst_deinterleave_init),
(gst_deinterleave_add_new_pads), (gst_deinterleave_sink_getcaps):
* gst/interleave/deinterleave.h:
Don't set a getcaps() function on the src pads as it's not required
and the default getcaps() function returns the correct results for
our src pads.
Complete documentation and add myself to the authors of the element.

1 files changed, 24 insertions, 7 deletions

diff --git a/gst/interleave/deinterleave.c b/gst/interleave/deinterleave.c
index 464aecac..c59238b0 100644
--- a/gst/interleave/deinterleave.c
+++ b/gst/interleave/deinterleave.c
@@ -5,7 +5,7 @@
  *                    2007 Andy Wingo <wingo at pobox.com>
  *                    2008 Sebastian Dröge <slomo@circular-chaos.org>
  *
- * deinterleave.c: deinterleave samples, based on interleave.c
+ * deinterleave.c: deinterleave samples
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -37,12 +37,18 @@
  * <para>
  * Splits one interleaved multichannel audio stream into many mono audio streams.
  * </para>
+ * <para>
+ * This element handles all raw audio formats and supports changing the input caps as long as
+ * all downstream elements can handle the new caps and the number of channels and the channel
+ * positions stay the same. This restriction will be removed in later versions by adding or
+ * removing some source pads as required.
+ * </para>
  * <title>Example launch line</title>
  * <para>
  * <programlisting>
  * gst-launch-0.10 filesrc location=/path/to/file.mp3 ! decodebin ! audioconvert ! "audio/x-raw-int,channels=2 ! deinterleave name=d  d.src0 ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=channel1.ogg  d.src1 ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=channel2.ogg
  * </programlisting>
- * Decodes an MP3 file and encodes the left and right channel into a separate 
+ * Decodes an MP3 file and encodes the left and right channel into separate Ogg Vorbis files.
  * </para>
  * </refsect2>
  */
@@ -131,7 +137,7 @@ enum
 
 static GstFlowReturn gst_deinterleave_chain (GstPad * pad, GstBuffer * buffer);
 static gboolean gst_deinterleave_sink_setcaps (GstPad * pad, GstCaps * caps);
-static GstCaps *gst_deinterleave_getcaps (GstPad * pad);
+static GstCaps *gst_deinterleave_sink_getcaps (GstPad * pad);
 static gboolean gst_deinterleave_sink_activate_push (GstPad * pad,
     gboolean active);
 static gboolean gst_deinterleave_sink_event (GstPad * pad, GstEvent * event);
@@ -168,7 +174,9 @@ gst_deinterleave_base_init (gpointer g_class)
   gst_element_class_set_details_simple (gstelement_class, "Audio deinterleaver",
       "Filter/Converter/Audio",
       "Splits one interleaved multichannel audio stream into many mono audio streams",
-      "Andy Wingo <wingo at pobox.com>, " "Iain <iain@prettypeople.org>");
+      "Andy Wingo <wingo at pobox.com>, "
+      "Iain <iain@prettypeople.org>, "
+      "Sebastian Dröge <slomo@circular-chaos.org>");
 
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&sink_template));
@@ -188,6 +196,15 @@ gst_deinterleave_class_init (GstDeinterleaveClass * klass)
   gobject_class->set_property = gst_deinterleave_set_property;
   gobject_class->get_property = gst_deinterleave_get_property;
 
+  /**
+   * GstDeinterleave:keep-positions
+   * 
+   * Keep positions: When enable the caps on the output buffers will
+   * contain the original channel positions. This can be used to correctly
+   * interleave the output again later but can also lead to unwanted effects
+   * if the output should be handled as Mono.
+   *
+   */
   g_object_class_install_property (gobject_class, PROP_KEEP_POSITIONS,
       g_param_spec_boolean ("keep-positions", "Keep positions",
           "Keep the original channel positions on the output buffers",
@@ -209,7 +226,8 @@ gst_deinterleave_init (GstDeinterleave * self, GstDeinterleaveClass * klass)
       GST_DEBUG_FUNCPTR (gst_deinterleave_chain));
   gst_pad_set_setcaps_function (self->sink,
       GST_DEBUG_FUNCPTR (gst_deinterleave_sink_setcaps));
-  gst_pad_set_getcaps_function (self->sink, gst_deinterleave_getcaps);
+  gst_pad_set_getcaps_function (self->sink,
+      GST_DEBUG_FUNCPTR (gst_deinterleave_sink_getcaps));
   gst_pad_set_activatepush_function (self->sink,
       GST_DEBUG_FUNCPTR (gst_deinterleave_sink_activate_push));
   gst_pad_set_event_function (self->sink,
@@ -245,7 +263,6 @@ gst_deinterleave_add_new_pads (GstDeinterleave * self, GstCaps * caps)
       srccaps = caps;
     }
 
-    gst_pad_set_getcaps_function (pad, gst_deinterleave_getcaps);
     gst_pad_set_caps (pad, srccaps);
     gst_pad_use_fixed_caps (pad);
     gst_pad_set_active (pad, TRUE);
@@ -475,7 +492,7 @@ __set_channels (GstCaps * caps, gint channels)
 }
 
 static GstCaps *
-gst_deinterleave_getcaps (GstPad * pad)
+gst_deinterleave_sink_getcaps (GstPad * pad)
 {
   GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad));
   GstCaps *ret;