ext/xine/: add first version of xine plugin wrapper. Currently only wraps the

Original commit message from CVS:
2004-02-20  Benjamin Otte  <otte@gnome.org>

* ext/xine/Makefile.am:
* ext/xine/gstxine.h:
* ext/xine/xine.c:
* ext/xine/xineaudiodec.c:
* ext/xine/xinecaps.c:
add first version of xine plugin wrapper. Currently only wraps the
QDM2 win32 DLL, and even that only in proof-of-concept quality.
* configure.ac:
* ext/Makefile.am:
add xine plugin wrapper, disabled by default. Use --enable-xine to
build. Note that it'll segfault on gst-register if you don't remove
the goom and tvtime post plugins from xine.
* gst/qtdemux/qtdemux.c: (gst_qtdemux_handle_sink_event),
(qtdemux_parse), (qtdemux_parse_trak), (qtdemux_audio_caps):
add extradata parsing for QDM2.
change around debugging prints.

5 files changed, 937 insertions, 0 deletions

diff --git a/ext/xine/Makefile.am b/ext/xine/Makefile.am
new file mode 100644
index 00000000..b67889c7
--- /dev/null
+++ b/ext/xine/Makefile.am
@@ -0,0 +1,11 @@
+plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
+
+plugin_LTLIBRARIES = libgstxine.la
+
+libgstxine_la_SOURCES = xine.c xinecaps.c xineaudiodec.c
+libgstxine_la_CFLAGS = $(GST_CFLAGS) $(XINE_CFLAGS)
+libgstxine_la_LIBADD = $(XINE_LIBS)
+libgstxine_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstxine.h
+
diff --git a/ext/xine/gstxine.h b/ext/xine/gstxine.h
new file mode 100644
index 00000000..9fdc6588
--- /dev/null
+++ b/ext/xine/gstxine.h
@@ -0,0 +1,82 @@
+/* GStreamer
+ * Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_XINE_H__
+#define __GST_XINE_H__
+
+#include <gst/gst.h>
+#include <xine.h>
+#include <xine/buffer.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_XINE \
+  (gst_xine_get_type())
+#define GST_XINE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_XINE,GstXine))
+#define GST_XINE_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_XINE, GstXineClass))
+#define GST_XINE_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_XINE,GstXineClass))
+#define GST_IS_XINE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_XINE))
+#define GST_IS_XINE_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_XINE))
+
+typedef struct _GstXine      GstXine;
+typedef struct _GstXineClass GstXineClass;
+
+struct _GstXine
+{
+  GstElement		element;
+
+  xine_stream_t *	stream;
+  xine_ao_driver_t *	audio_driver;
+  xine_vo_driver_t *	video_driver;
+};
+
+struct _GstXineClass 
+{
+  GstElementClass	parent_class;
+
+  xine_t *		xine;
+
+  xine_ao_driver_t *	(* create_audio_driver)		(GstXine *	xine);
+  xine_vo_driver_t *	(* create_video_driver)		(GstXine *	xine);
+};
+
+GType		gst_xine_get_type		(void);
+
+xine_stream_t *	gst_xine_get_stream		(GstXine *xine);
+void		gst_xine_free_stream		(GstXine *xine);
+
+void		gst_buffer_to_xine_buffer	(buf_element_t *element, GstBuffer *buffer);
+
+/* conversion functions from xinecaps.c */
+
+const gchar *	gst_xine_get_caps_for_format	(guint32 format);
+guint32		gst_xine_get_format_for_caps	(const GstCaps *caps);
+
+/* init functions for the plugins */
+
+gboolean	gst_xine_audio_dec_init_plugin	(GstPlugin *plugin);
+  
+G_END_DECLS
+
+#endif /* __GST_XINE_H__ */
diff --git a/ext/xine/xine.c b/ext/xine/xine.c
new file mode 100644
index 00000000..f3bfb5ab
--- /dev/null
+++ b/ext/xine/xine.c
@@ -0,0 +1,169 @@
+/* GStreamer
+ * Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "gstxine.h"
+
+GST_BOILERPLATE (GstXine, gst_xine, GstElement, GST_TYPE_ELEMENT)
+
+static GstElementStateReturn	gst_xine_change_state		(GstElement *	element);
+  
+static xine_ao_driver_t *  	_xine_create_audio_driver     	(GstXine *	xine);
+static xine_vo_driver_t *  	_xine_create_video_driver     	(GstXine *	xine);
+
+
+static void
+gst_xine_base_init (gpointer klass)
+{
+}
+
+static void
+gst_xine_class_init (GstXineClass *klass)
+{
+  GstElementClass *element = GST_ELEMENT_CLASS (klass);
+  
+  klass->xine = xine_new ();
+  xine_init (klass->xine);
+
+  klass->create_audio_driver = _xine_create_audio_driver;
+  klass->create_video_driver = _xine_create_video_driver;
+
+  element->change_state = gst_xine_change_state;
+}
+
+static void
+gst_xine_init (GstXine *filter)
+{
+}
+
+static GstElementStateReturn
+gst_xine_change_state (GstElement *element)
+{
+  GstXine *xine = GST_XINE (element);
+  
+  switch (GST_STATE_TRANSITION (element)) {
+    case GST_STATE_NULL_TO_READY:
+      break;
+    case GST_STATE_READY_TO_PAUSED:
+      break;
+    case GST_STATE_PAUSED_TO_PLAYING:
+      break;
+    case GST_STATE_PLAYING_TO_PAUSED:
+      break;
+    case GST_STATE_PAUSED_TO_READY:
+      break;
+    case GST_STATE_READY_TO_NULL:
+      if (xine->stream != NULL)
+	gst_xine_free_stream (xine);
+      break;
+    default:
+      GST_ERROR_OBJECT (element, "invalid state change");
+      break;
+  }
+  
+  return GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, (element), GST_STATE_SUCCESS);
+}
+
+static xine_ao_driver_t *
+_xine_create_audio_driver (GstXine *xine)
+{
+  return xine_open_audio_driver (GST_XINE_GET_CLASS (xine)->xine, "none", NULL);
+}
+
+static xine_vo_driver_t *
+_xine_create_video_driver (GstXine *xine)
+{
+  return xine_open_video_driver (GST_XINE_GET_CLASS (xine)->xine, "none", XINE_VISUAL_TYPE_NONE, NULL);
+}
+
+xine_stream_t *
+gst_xine_get_stream (GstXine *xine)
+{
+  if (!xine->stream) {
+    GstXineClass *klass = GST_XINE_GET_CLASS (xine);
+    g_assert (xine->video_driver == NULL);
+    g_assert (xine->audio_driver == NULL);
+    xine->audio_driver = klass->create_audio_driver (xine);
+    xine->video_driver = klass->create_video_driver (xine);
+    xine->stream = xine_stream_new (klass->xine, xine->audio_driver, xine->video_driver);
+
+    /* FIXME: fail gracefully */
+    g_assert (xine->stream);
+  }
+
+  return xine->stream;
+}
+
+void
+gst_xine_free_stream (GstXine *xine)
+{
+  g_return_if_fail (xine->stream != NULL);
+  g_assert (xine->video_driver != NULL);
+  g_assert (xine->audio_driver != NULL);
+
+  xine_dispose (xine->stream);
+  xine->stream = NULL;
+  xine_close_video_driver (GST_XINE_GET_CLASS (xine)->xine, xine->video_driver);
+  xine->video_driver = NULL;
+  xine_close_audio_driver (GST_XINE_GET_CLASS (xine)->xine, xine->audio_driver);
+  xine->audio_driver = NULL;
+}
+
+static void
+_free_xine_buf_element (buf_element_t *buffer)
+{
+  gst_buffer_unref (GST_BUFFER (buffer->source));
+}
+
+void
+gst_buffer_to_xine_buffer (buf_element_t *ret, GstBuffer *buffer)
+{
+  g_return_if_fail (ret != NULL);
+  g_return_if_fail (buffer != NULL);
+  
+  /* FIXME: what's the difference? */
+  ret->mem = GST_BUFFER_DATA (buffer);
+  ret->content = GST_BUFFER_DATA (buffer);
+  ret->size = GST_BUFFER_SIZE (buffer);
+  ret->max_size = GST_BUFFER_MAXSIZE (buffer);
+  /* FIXME: add more */
+  ret->free_buffer = _free_xine_buf_element;
+  ret->source = buffer;
+}
+
+static gboolean
+plugin_init (GstPlugin *plugin)
+{
+  return gst_xine_audio_dec_init_plugin (plugin);
+}
+
+GST_PLUGIN_DEFINE (
+  GST_VERSION_MAJOR,
+  GST_VERSION_MINOR,
+  "xine",
+  "wrapper for libxine (version "XINE_VERSION") plugins",
+  plugin_init,
+  VERSION,
+  "GPL",
+  GST_PACKAGE,
+  GST_ORIGIN
+)
diff --git a/ext/xine/xineaudiodec.c b/ext/xine/xineaudiodec.c
new file mode 100644
index 00000000..3d31ef9a
--- /dev/null
+++ b/ext/xine/xineaudiodec.c
@@ -0,0 +1,556 @@
+/* GStreamer
+ * Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gst/gst.h>
+#include "gstxine.h"
+#include <xine/xine_internal.h>
+#include <xine/plugin_catalog.h>
+
+#define GST_TYPE_XINE_AUDIO_DEC \
+  (gst_xine_audio_dec_get_type())
+#define GST_XINE_AUDIO_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_XINE_AUDIO_DEC,GstXineAudioDec))
+#define GST_XINE_AUDIO_DEC_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_XINE_AUDIO_DEC, GstXineAudioDecClass))
+#define GST_XINE_AUDIO_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_XINE_AUDIO_DEC,GstXineAudioDecClass))
+#define GST_IS_XINE_AUDIO_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_XINE_AUDIO_DEC))
+#define GST_IS_XINE_AUDIO_DEC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_XINE_AUDIO_DEC))
+
+GType gst_xine_audio_dec_get_type (void);
+
+typedef struct _GstXineAudioDec      GstXineAudioDec;
+typedef struct _GstXineAudioDecClass GstXineAudioDecClass;
+
+struct _GstXineAudioDec
+{
+  GstXine		parent;
+
+  GstPad *		sinkpad;
+  GstPad *		srcpad;
+
+  audio_decoder_t *	decoder;
+  guint32		format;
+  xine_waveformatex	wave;
+  gboolean		setup;
+};
+
+struct _GstXineAudioDecClass 
+{
+  GstXineClass		parent_class;
+
+  plugin_node_t *	plugin_node;
+};
+
+/*** xine audio driver wrapper ************************************************/
+ 
+typedef struct {
+  xine_ao_driver_t	driver;
+  GstXineAudioDec *   	xine;
+  gboolean		open;
+} GstXineAudioDriver;
+
+static guint32
+_driver_get_capabilities (xine_ao_driver_t *driver)
+{
+  /* FIXME: add more when gst handles more than 2 channels */
+  return AO_CAP_MODE_MONO | AO_CAP_MODE_STEREO | AO_CAP_8BITS;
+}
+
+static gint
+_driver_get_property (xine_ao_driver_t *driver, int property)
+{
+  return 0;
+}
+
+static gint
+_driver_set_property (xine_ao_driver_t * driver, int property, int value)
+{
+  return ~value;
+}
+
+static gint
+_driver_open (xine_ao_driver_t *driver, xine_stream_t *stream, guint32 bits, guint32 rate, int mode)
+{
+  GstCaps *caps;
+  GstXineAudioDriver *xine = ((GstXineAudioDriver *) driver);
+  
+  caps = gst_caps_new_simple ("audio/x-raw-int",
+      "endianness", G_TYPE_INT,	    G_BYTE_ORDER,
+      "width",	    G_TYPE_INT,	    (gint) bits,
+      "depth",	    G_TYPE_INT,	    (gint) bits,
+      "signed",	    G_TYPE_BOOLEAN, (bits == 8) ? FALSE : TRUE,
+      "channels",   G_TYPE_INT,	    (mode | AO_CAP_MODE_STEREO) ? 2 : 1,
+      "rate",	    G_TYPE_INT,	    rate,
+      NULL);
+      
+  if (!gst_pad_set_explicit_caps (xine->xine->srcpad, caps)) {
+    gst_caps_free (caps);
+    driver->open = FALSE;
+    return -1;
+  }
+  
+  xine->open = TRUE;
+  gst_caps_free (caps);
+  return rate;
+}
+
+static void
+_driver_close (xine_ao_driver_t *driver, xine_stream_t *stream)
+{
+  /* FIXME: unset explicit caps here? And how? */
+  driver->open = FALSE;
+}
+
+static void
+_driver_exit (xine_ao_driver_t *driver)
+{
+  g_free (driver);
+}
+
+static int
+_driver_control (xine_ao_driver_t *driver, int cmd, ...)
+{
+  return 0;
+}
+
+static void
+_driver_flush (xine_ao_driver_t *driver)
+{
+}
+
+static int
+_driver_status (xine_ao_driver_t *driver, xine_stream_t *stream, uint32_t *bits, uint32_t *rate, int *mode)
+{
+  const GstCaps *caps;
+  GstStructure *structure;
+  gint temp;
+  GstXineAudioDriver *xine = (GstXineAudioDriver *) driver;
+  
+  if (xine->open == FALSE || !(caps = gst_pad_get_negotiated_caps (xine->xine->srcpad)))
+    return 0;
+
+  structure = gst_caps_get_structure (caps, 0);
+  *bits = 0; /* FIXME */
+  if (!gst_structure_get_int (structure, "rate", &temp)) {
+    g_assert_not_reached (); /* may never happen with negotiated caps */
+    return 0;
+  }
+  *rate = temp;
+  if (!gst_structure_get_int (structure, "channels", &temp)) {
+    g_assert_not_reached (); /* may never happen with negotiated caps */
+    return 0;
+  }
+  *mode = (temp == 2) ? AO_CAP_MODE_STEREO : AO_CAP_MODE_MONO;
+  if (!gst_structure_get_int (structure, "width", &temp)) {
+    g_assert_not_reached (); /* may never happen with negotiated caps */
+    return 0;
+  }
+  if (temp == 8)
+    *mode |= AO_CAP_8BITS;
+
+  return 1;
+}
+
+#define _DRIVER_BUFFER_SIZE 4096
+static audio_buffer_t *
+_driver_get_buffer (xine_ao_driver_t *driver)
+{
+  GstXineAudioDriver *xine = (GstXineAudioDriver *) driver;
+  audio_buffer_t *audio = g_new0 (audio_buffer_t, 1); 
+
+  audio->mem = g_malloc (_DRIVER_BUFFER_SIZE);
+  audio->mem_size = _DRIVER_BUFFER_SIZE;
+  audio->stream = gst_xine_get_stream (GST_XINE (xine->xine));
+  /* FIXME: fill more fields */
+  
+  return audio;
+}
+
+static void 
+_driver_put_buffer (xine_ao_driver_t *driver, audio_buffer_t *audio, xine_stream_t *stream)
+{
+  GstXineAudioDriver *xine = (GstXineAudioDriver *) driver;
+  GstBuffer *buffer;
+  
+  buffer = gst_buffer_new ();
+  GST_BUFFER_DATA (buffer) = (guint8 *) audio->mem;
+  GST_BUFFER_SIZE (buffer) = audio->mem_size;
+  GST_BUFFER_MAXSIZE (buffer) = audio->mem_size;
+  /* FIXME: fill more fields */
+  g_free (audio);
+  gst_pad_push (xine->xine->srcpad, GST_DATA (buffer));
+}
+  
+static xine_ao_driver_t *
+_gst_xine_audio_dec_create_audio_driver (GstXine *xine)
+{
+  GstXineAudioDriver *driver = g_new (GstXineAudioDriver, 1);
+
+  driver->xine = GST_XINE_AUDIO_DEC (xine);
+  driver->open = FALSE;
+  
+  driver->driver.get_buffer	    = _driver_get_buffer;
+  driver->driver.put_buffer	    = _driver_put_buffer;
+  driver->driver.get_capabilities   = _driver_get_capabilities;
+  driver->driver.get_property       = _driver_get_property;
+  driver->driver.set_property       = _driver_set_property;
+  driver->driver.open               = _driver_open;
+  driver->driver.close              = _driver_close;
+  driver->driver.exit               = _driver_exit;
+  driver->driver.control	    = _driver_control;
+  driver->driver.flush		    = _driver_flush;
+  driver->driver.status		    = _driver_status;
+  
+  return (xine_ao_driver_t *) driver;
+}
+
+/** GstXineAudioDec ***********************************************************/
+
+GST_BOILERPLATE (GstXineAudioDec, gst_xine_audio_dec, GstXine, GST_TYPE_XINE)
+
+static void	gst_xine_audio_dec_chain	(GstPad *pad, GstData *in);
+static GstElementStateReturn
+		gst_xine_audio_dec_change_state	(GstElement *element);
+
+/* this function handles the link with other plug-ins */
+static GstPadLinkReturn
+gst_xine_audio_dec_sink_link (GstPad *pad, const GstCaps *caps)
+{
+  guint temp;
+  GstStructure *structure;
+  GstXineAudioDec *xine = GST_XINE_AUDIO_DEC (gst_object_get_parent (GST_OBJECT (pad)));
+
+  xine->format = gst_xine_get_format_for_caps (caps);
+  if (xine->format == 0) return GST_PAD_LINK_REFUSED;
+
+  /* get setup data */
+  xine->setup = FALSE;
+  structure = gst_caps_get_structure (caps, 0);
+  if (gst_structure_get_int (structure, "channels", &temp))
+    xine->wave.nChannels = temp;
+  if (gst_structure_get_int (structure, "rate", &temp))
+    xine->wave.nSamplesPerSec = temp;
+  xine->wave.wBitsPerSample = 16; /* FIXME: how do we figure this thing out? */
+  /* FIXME: fill wave header better */
+
+  return GST_PAD_LINK_OK;
+}
+
+static void
+gst_xine_audio_dec_base_init (gpointer g_class)
+{
+}
+
+static void
+gst_xine_audio_dec_class_init (GstXineAudioDecClass *klass)
+{
+  GstXineClass *xine = GST_XINE_CLASS (klass);
+  GstElementClass *element = GST_ELEMENT_CLASS (klass);
+
+  element->change_state = gst_xine_audio_dec_change_state;
+
+  xine->create_audio_driver = _gst_xine_audio_dec_create_audio_driver;
+}
+
+static void
+gst_xine_audio_dec_init (GstXineAudioDec *xine)
+{
+  xine->setup = FALSE;
+}
+
+static void
+gst_xine_audio_dec_event (GstXineAudioDec *xine, GstEvent *event)
+{
+  gst_pad_event_default (xine->sinkpad, event);
+}
+
+static void
+gst_xine_audio_dec_chain (GstPad *pad, GstData *in)
+{
+  G_GNUC_UNUSED buf_element_t buffer = { 0, };
+  GstXineAudioDec *xine = GST_XINE_AUDIO_DEC (gst_object_get_parent (GST_OBJECT (pad)));
+
+  if (GST_IS_EVENT (in)) {
+    gst_xine_audio_dec_event (xine, GST_EVENT (in));
+    return;
+  }
+
+  if (xine->format == 0) {
+    /* no caps yet */
+    GST_ELEMENT_ERROR (xine, CORE, NEGOTIATION, (NULL), ("buffer sent before doing caps nego"));
+    gst_data_unref (in);
+    return;
+  }
+
+  if (!xine->setup) {
+    buf_element_t element = { 0, };
+    guint8 stsd[150] = { 0, };
+    guint temp;
+    GstStructure *structure;
+    /* sent setup header */
+    element.type = xine->format;
+    element.decoder_flags = BUF_FLAG_HEADER;
+    element.decoder_info[0] = 0;
+    element.decoder_info[1] = xine->wave.nSamplesPerSec;
+    element.decoder_info[2] = xine->wave.wBitsPerSample;
+    element.decoder_info[3] = xine->wave.nChannels;
+    element.content = (guchar *) &xine->wave;
+    element.size = sizeof (xine_waveformatex);
+    xine->decoder->decode_data (xine->decoder, &element);
+    /* send stsd emulation to the decoder */
+    /* FIXME: qdm2 only right now */
+    g_assert (gst_pad_get_negotiated_caps (xine->sinkpad));
+    structure = gst_caps_get_structure (gst_pad_get_negotiated_caps (xine->sinkpad), 0);
+    *((guint32 *) &stsd[56]) = GUINT32_TO_BE (12);
+    memcpy (&stsd[60], "frmaQDM2", 8);
+    *((guint32 *) &stsd[68]) = GUINT32_TO_BE (36);
+    memcpy (&stsd[72], "QDCA", 4);
+    *((guint32 *) &stsd[76]) = GUINT32_TO_BE (1);
+    if (!gst_structure_get_int (structure, "channels", &temp))
+      temp = 0;
+    *((guint32 *) &stsd[80]) = GUINT32_TO_BE (temp);
+    if (!gst_structure_get_int (structure, "rate", &temp))
+      temp = 0;
+    *((guint32 *) &stsd[84]) = GUINT32_TO_BE (temp);
+    if (!gst_structure_get_int (structure, "bitrate", &temp))
+      temp = 0;
+    *((guint32 *) &stsd[88]) = GUINT32_TO_BE (temp);
+    if (!gst_structure_get_int (structure, "blocksize", &temp))
+      temp = 0;
+    *((guint32 *) &stsd[92]) = GUINT32_TO_BE (temp);
+    *((guint32 *) &stsd[96]) = GUINT32_TO_BE (256);
+    if (!gst_structure_get_int (structure, "framesize", &temp))
+      temp = 0;
+    *((guint32 *) &stsd[100]) = GUINT32_TO_BE (temp);
+    *((guint32 *) &stsd[104]) = GUINT32_TO_BE (28);
+    memcpy (&stsd[108], "QDCP", 4);
+    *((guint32 *) &stsd[112]) = GUINT32_TO_BE (1065353216);
+    *((guint32 *) &stsd[116]) = GUINT32_TO_BE (0);
+    *((guint32 *) &stsd[120]) = GUINT32_TO_BE (1065353216);
+    *((guint32 *) &stsd[124]) = GUINT32_TO_BE (1065353216);
+    *((guint32 *) &stsd[128]) = GUINT32_TO_BE (27);
+    *((guint32 *) &stsd[132]) = GUINT32_TO_BE (8);
+    *((guint32 *) &stsd[136]) = GUINT32_TO_BE (0);
+    *((guint32 *) &stsd[140]) = GUINT32_TO_BE (24);
+    gst_util_dump_mem (stsd, 144); 
+    element.decoder_flags = BUF_FLAG_SPECIAL;
+    element.decoder_info[1] = BUF_SPECIAL_STSD_ATOM;
+    element.decoder_info[2] = 144;
+    element.decoder_info[3] = 0;
+    element.decoder_info_ptr[2] = stsd;
+    element.size = 0;
+    element.content = 0;
+    xine->decoder->decode_data (xine->decoder, &element);
+    
+    xine->setup = TRUE;
+  }
+  
+  gst_buffer_to_xine_buffer (&buffer, GST_BUFFER (in));
+  buffer.type = xine->format;
+  xine->decoder->decode_data (xine->decoder, &buffer);
+  gst_data_unref (in);
+}
+
+static audio_decoder_t *
+_load_decoder (GstXineAudioDec* dec)
+{
+  xine_stream_t *stream = gst_xine_get_stream (GST_XINE (dec));
+  plugin_catalog_t *catalog = stream->xine->plugin_catalog;
+  plugin_node_t *node = GST_XINE_AUDIO_DEC_GET_CLASS (dec)->plugin_node;
+  audio_decoder_t *ret;
+  
+  /* FIXME: this is really hacky, but how to force xine to load a plugin? */
+  /* how it works: xine can load a plugin for a particular stream type.
+   * We just take one type, which should not have plugins attached to it,
+   * attach our plugin and load it */
+  g_assert (catalog->audio_decoder_map[DECODER_MAX - 1][0] == NULL);
+  catalog->audio_decoder_map[DECODER_MAX - 1][0] = node;
+  ret = _x_get_audio_decoder (stream, DECODER_MAX - 1);
+  catalog->audio_decoder_map[DECODER_MAX - 1][0] = NULL;
+
+  return ret;
+}
+
+static GstElementStateReturn
+gst_xine_audio_dec_change_state (GstElement *element)
+{
+  GstXineAudioDec *xine = GST_XINE_AUDIO_DEC (element);
+  
+  switch (GST_STATE_TRANSITION (element)) {
+    case GST_STATE_NULL_TO_READY:
+      xine->decoder = _load_decoder (xine);
+      if (!xine->decoder)
+	return GST_STATE_FAILURE;
+      break;
+    case GST_STATE_READY_TO_PAUSED:
+      break;
+    case GST_STATE_PAUSED_TO_PLAYING:
+      break;
+    case GST_STATE_PLAYING_TO_PAUSED:
+      break;
+    case GST_STATE_PAUSED_TO_READY:
+      break;
+    case GST_STATE_READY_TO_NULL:
+      xine->setup = FALSE;
+      _x_free_audio_decoder (gst_xine_get_stream (GST_XINE (xine)), xine->decoder);
+      break;
+    default:
+      GST_ERROR_OBJECT (element, "invalid state change");
+      break;
+  }
+  
+  return GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, (element), GST_STATE_SUCCESS);
+}
+
+/** GstXineAudioDec subclasses ************************************************/
+
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE (
+  "src",
+  GST_PAD_SRC,
+  GST_PAD_ALWAYS,
+  GST_STATIC_CAPS (
+    "audio/x-raw-int, "
+      "endianness = (int) BYTE_ORDER, "
+      "signed = (boolean) TRUE, "
+      "width = (int) 16, "
+      "depth = (int) 16, "
+      "rate = (int) [ 1, MAX ], "
+      "channels = (int) [ 1, 2 ]; "
+    "audio/x-raw-int, "
+      "signed = (boolean) FALSE, "
+      "width = (int) 8, "
+      "depth = (int) 8, "
+      "rate = (int) [ 1, MAX ], "
+      "channels = (int) [ 1, 2 ]"
+  )
+);
+
+static void
+gst_xine_audio_dec_subclass_init (gpointer g_class, gpointer class_data)
+{
+  GstXineAudioDecClass *xine_class = GST_XINE_AUDIO_DEC_CLASS (g_class);
+  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+  GstElementDetails details = GST_ELEMENT_DETAILS (
+    NULL,
+    "Filter/Decoder/Audio",
+    NULL,
+    "Benjamin Otte <otte@gnome.org>"
+  );
+  GstPadTemplate *template;
+  guint i = 0;
+  GstCaps *caps = gst_caps_new_empty ();
+  decoder_info_t *dec;
+  
+  xine_class->plugin_node = class_data;
+  dec = xine_class->plugin_node->info->special_info;
+  details.longname = g_strdup_printf ("%s xine audio decoder", xine_class->plugin_node->info->id);
+  details.description = g_strdup_printf ("decodes audio using the xine '%s' plugin", xine_class->plugin_node->info->id);
+  gst_element_class_set_details (element_class, &details);
+  g_free (details.longname);
+  g_free (details.description);
+  
+  gst_element_class_add_pad_template (element_class, 
+      gst_static_pad_template_get (&src_template));
+  
+  while (dec->supported_types[i] != 0) {
+    const gchar *type_str = gst_xine_get_caps_for_format (dec->supported_types[i]);
+    if (type_str) {
+      gst_caps_append (caps, gst_caps_from_string (type_str));
+    }
+    i++;
+  }
+  template = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
+  gst_element_class_add_pad_template (element_class, template);
+}
+
+static void
+gst_xine_audio_dec_sub_init (GTypeInstance *instance, gpointer g_class)
+{
+  GstElementClass *klass = GST_ELEMENT_GET_CLASS (instance);
+  GstXineAudioDec *xine = GST_XINE_AUDIO_DEC (instance);
+
+  xine->sinkpad = gst_pad_new_from_template (
+	gst_element_class_get_pad_template (klass, "sink"), "sink");
+  gst_pad_set_link_function (xine->sinkpad, gst_xine_audio_dec_sink_link);
+  gst_pad_set_chain_function (xine->sinkpad, gst_xine_audio_dec_chain);
+  gst_element_add_pad (GST_ELEMENT (xine), xine->sinkpad);
+
+  xine->srcpad = gst_pad_new_from_template (
+	gst_element_class_get_pad_template (klass, "src"), "src");
+  gst_pad_use_explicit_caps (xine->srcpad);
+  gst_element_add_pad (GST_ELEMENT (xine), xine->srcpad);
+}
+
+gboolean
+gst_xine_audio_dec_init_plugin (GstPlugin *plugin)
+{
+  GTypeInfo plugin_info =
+  {
+    sizeof (GstXineAudioDecClass),
+    NULL,
+    NULL,
+    gst_xine_audio_dec_subclass_init,
+    NULL,
+    NULL,
+    sizeof (GstXineAudioDec),
+    0,
+    gst_xine_audio_dec_sub_init,
+  };
+  xine_node_t *list;
+  GstXineClass *klass;
+    
+  klass = g_type_class_ref (GST_TYPE_XINE);
+  
+  list = klass->xine->plugin_catalog->audio->first;
+  while (list) {
+    plugin_node_t *node = list->content;
+    decoder_info_t *dec;
+    guint format = 0;
+
+    list = list->next;
+    if (!node) continue;
+    
+    dec = node->info->special_info;
+    while (dec->supported_types[format] != 0) {
+      const gchar *caps = gst_xine_get_caps_for_format (dec->supported_types[format]);
+      if (caps) {
+	gchar *plugin_name = g_strdup_printf ("xineaudiodec_%s", node->info->id);
+	gchar *type_name = g_strdup_printf ("GstXineAudioDec%s", node->info->id);
+	GType type;
+	plugin_info.class_data = node;
+	type = g_type_register_static (GST_TYPE_XINE_AUDIO_DEC, type_name, &plugin_info, 0);
+	g_free (type_name);
+	if (!gst_element_register (plugin, plugin_name, 
+	      MAX (GST_RANK_MARGINAL, GST_RANK_MARGINAL * dec->priority / 10 + 1), type)) {
+	  g_free (plugin_name);
+	  return FALSE;
+	}
+	g_free (plugin_name);
+      }
+      format++;
+    }
+  }
+
+  g_type_class_unref (klass); 
+  return TRUE;
+}
+
diff --git a/ext/xine/xinecaps.c b/ext/xine/xinecaps.c
new file mode 100644
index 00000000..d243f72f
--- /dev/null
+++ b/ext/xine/xinecaps.c
@@ -0,0 +1,119 @@
+/* GStreamer
+ * Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "gstxine.h"
+#include <xine/buffer.h>
+
+typedef struct {
+  guint32	xine;
+  gchar *	caps;
+} GstXineCapsMap;
+
+static GstXineCapsMap _gst_xine_caps_map[] = {
+  { BUF_AUDIO_QDESIGN2,		"audio/x-qdm2" },
+/* FIXME:
+#define BUF_AUDIO_A52		0x03000000
+#define BUF_AUDIO_MPEG		0x03010000
+#define BUF_AUDIO_LPCM_BE	0x03020000
+#define BUF_AUDIO_LPCM_LE	0x03030000
+#define BUF_AUDIO_WMAV1		0x03040000
+#define BUF_AUDIO_DTS		0x03050000
+#define BUF_AUDIO_MSADPCM	0x03060000
+#define BUF_AUDIO_MSIMAADPCM	0x03070000
+#define BUF_AUDIO_MSGSM		0x03080000
+#define BUF_AUDIO_VORBIS        0x03090000
+#define BUF_AUDIO_IMC           0x030a0000
+#define BUF_AUDIO_LH            0x030b0000
+#define BUF_AUDIO_VOXWARE       0x030c0000
+#define BUF_AUDIO_ACELPNET      0x030d0000
+#define BUF_AUDIO_AAC           0x030e0000
+#define BUF_AUDIO_DNET    	0x030f0000
+#define BUF_AUDIO_VIVOG723      0x03100000
+#define BUF_AUDIO_DK3ADPCM	0x03110000
+#define BUF_AUDIO_DK4ADPCM	0x03120000
+#define BUF_AUDIO_ROQ		0x03130000
+#define BUF_AUDIO_QTIMAADPCM	0x03140000
+#define BUF_AUDIO_MAC3		0x03150000
+#define BUF_AUDIO_MAC6		0x03160000
+#define BUF_AUDIO_QDESIGN1	0x03170000
+#define BUF_AUDIO_QDESIGN2	0x03180000
+#define BUF_AUDIO_QCLP		0x03190000
+#define BUF_AUDIO_SMJPEG_IMA	0x031A0000
+#define BUF_AUDIO_VQA_IMA	0x031B0000
+#define BUF_AUDIO_MULAW		0x031C0000
+#define BUF_AUDIO_ALAW		0x031D0000
+#define BUF_AUDIO_GSM610	0x031E0000
+#define BUF_AUDIO_EA_ADPCM      0x031F0000
+#define BUF_AUDIO_WMAV2		0x03200000
+#define BUF_AUDIO_COOK 		0x03210000
+#define BUF_AUDIO_ATRK 		0x03220000
+#define BUF_AUDIO_14_4 		0x03230000
+#define BUF_AUDIO_28_8 		0x03240000
+#define BUF_AUDIO_SIPRO		0x03250000
+#define BUF_AUDIO_WMAV3		0x03260000
+#define BUF_AUDIO_INTERPLAY	0x03270000
+#define BUF_AUDIO_XA_ADPCM	0x03280000
+#define BUF_AUDIO_WESTWOOD	0x03290000
+#define BUF_AUDIO_DIALOGIC_IMA	0x032A0000
+#define BUF_AUDIO_NSF		0x032B0000
+#define BUF_AUDIO_FLAC		0x032C0000
+#define BUF_AUDIO_DV		0x032D0000
+#define BUF_AUDIO_WMAV		0x032E0000
+#define BUF_AUDIO_SPEEX		0x032F0000
+#define BUF_AUDIO_RAWPCM	0x03300000
+#define BUF_AUDIO_4X_ADPCM	0x03310000
+*/
+  { 0,				NULL }
+};
+
+const gchar *
+gst_xine_get_caps_for_format (guint32 format)
+{
+  guint i = 0;
+  
+  while (_gst_xine_caps_map[i].xine != 0) {
+    if (_gst_xine_caps_map[i].xine == format)
+      return _gst_xine_caps_map[i].caps;
+    i++;
+  }
+  
+  return NULL;
+}
+
+guint32
+gst_xine_get_format_for_caps (const GstCaps *caps)
+{
+  guint i = 0;
+  GstCaps *compare, *intersect;
+  
+  while (_gst_xine_caps_map[i].xine != 0) {
+    compare = gst_caps_from_string (_gst_xine_caps_map[i].caps);
+    intersect = gst_caps_intersect (caps, compare);
+    gst_caps_free (compare);
+    if (!gst_caps_is_empty (intersect)) {
+      gst_caps_free (intersect);
+      return _gst_xine_caps_map[i].xine;
+    }
+    gst_caps_free (intersect);
+    i++;
+  }
+  
+  return 0;     
+}
+