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* Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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#include <xine/audio_out.h>
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#include <xine/xine_internal.h>
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#include <xine/plugin_catalog.h>
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#define GST_TYPE_XINE_AUDIO_SINK \
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(gst_xine_audio_sink_get_type())
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#define GST_XINE_AUDIO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_XINE_AUDIO_SINK,GstXineAudioSink))
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#define GST_XINE_AUDIO_SINK_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_XINE_AUDIO_SINK, GstXineAudioSinkClass))
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#define GST_XINE_AUDIO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_XINE_AUDIO_SINK,GstXineAudioSinkClass))
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#define GST_IS_XINE_AUDIO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_XINE_AUDIO_SINK))
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#define GST_IS_XINE_AUDIO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_XINE_AUDIO_SINK))
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GType gst_xine_audio_sink_get_type (void);
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typedef struct _GstXineAudioSink GstXineAudioSink;
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typedef struct _GstXineAudioSinkClass GstXineAudioSinkClass;
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struct _GstXineAudioSink
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guint open; /* number of bytes per sample or 0 if driver not open */
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struct _GstXineAudioSinkClass
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GstXineClass parent_class;
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plugin_node_t *plugin_node;
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/** GstXineAudioSink ***********************************************************/
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GST_BOILERPLATE (GstXineAudioSink, gst_xine_audio_sink, GstXine, GST_TYPE_XINE);
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static GstStateChangeReturn
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gst_xine_audio_sink_change_state (GstElement * element,
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GstStateChange transition);
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gst_xine_audio_sink_base_init (gpointer g_class)
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gst_xine_audio_sink_class_init (GstXineAudioSinkClass * klass)
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GstElementClass *element = GST_ELEMENT_CLASS (klass);
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element->change_state = gst_xine_audio_sink_change_state;
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gst_xine_audio_sink_init (GstXineAudioSink * xine,
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GstXineAudioSinkClass * g_class)
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gst_xine_audio_sink_chain (GstPad * pad, GstData * data)
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GstXineAudioSink *xine =
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GST_XINE_AUDIO_SINK (gst_object_get_parent (GST_OBJECT (pad)));
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while (xine->driver->write (xine->driver, (guint16 *) GST_BUFFER_DATA (data),
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GST_BUFFER_SIZE (data) / xine->open) == 0);
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gst_data_unref (GST_DATA (data));
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static GstStateChangeReturn
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gst_xine_audio_sink_change_state (GstElement * element,
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GstStateChange transition)
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GstXineAudioSink *xine = GST_XINE_AUDIO_SINK (element);
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audio_driver_class_t *driver =
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(audio_driver_class_t *) GST_XINE_AUDIO_SINK_GET_CLASS (xine)->
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plugin_node->plugin_class;
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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if (driver == NULL) {
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xine_audio_port_t *port =
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xine_open_audio_driver (GST_XINE_GET_CLASS (xine)->xine,
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GST_XINE_AUDIO_SINK_GET_CLASS (xine)->plugin_node->info->id, NULL);
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return GST_STATE_CHANGE_FAILURE;
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(audio_driver_class_t *) GST_XINE_AUDIO_SINK_GET_CLASS (xine)->
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plugin_node->plugin_class;
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return GST_STATE_CHANGE_FAILURE;
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xine->driver = driver->open_plugin (driver, NULL);
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return GST_STATE_CHANGE_FAILURE;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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xine->driver->close (xine->driver);
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case GST_STATE_CHANGE_READY_TO_NULL:
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xine->driver->exit (xine->driver);
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GST_ERROR_OBJECT (element, "invalid state change");
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return GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state,
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(element), GST_STATE_CHANGE_SUCCESS);
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_xine_audio_sink_get_caps (GstPad * pad)
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GstXineAudioSink *xine =
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GST_XINE_AUDIO_SINK (gst_object_get_parent (GST_OBJECT (pad)));
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GstCaps *caps, *ret = gst_caps_new_empty ();
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guint32 capa, channels;
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return gst_caps_copy (gst_pad_get_pad_template_caps (pad));
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capa = xine->driver->get_capabilities (xine->driver);
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channels = capa & (AO_CAP_MODE_MONO | AO_CAP_MODE_STEREO);
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/* neither mono nor stereo supported, die */
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/* this loop is messy */
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capa &= AO_CAP_8BITS;
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if (capa & AO_CAP_8BITS) {
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caps = gst_caps_from_string ("audio/x-raw-int, "
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"signed = (boolean) FALSE, "
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"depth = (int) 8, " "rate = (int) [ 8000, 192000 ]");
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capa &= ~AO_CAP_8BITS;
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caps = gst_caps_from_string ("audio/x-raw-int, "
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"endianness = (int) BYTE_ORDER, "
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"signed = (boolean) TRUE, "
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"depth = (int) 16, " "rate = (int) [ 8000, 192000 ]");
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case AO_CAP_MODE_MONO | AO_CAP_MODE_STEREO:
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gst_caps_set_simple (caps, "channels", GST_TYPE_INT_RANGE, 1, 2, NULL);
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case AO_CAP_MODE_MONO:
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gst_caps_set_simple (caps, "channels", G_TYPE_INT, 1, NULL);
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case AO_CAP_MODE_STEREO:
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gst_caps_set_simple (caps, "channels", G_TYPE_INT, 2, NULL);
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g_assert_not_reached ();
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gst_caps_append (ret, caps);
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} while (capa != -1);
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static GstPadLinkReturn
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_xine_audio_sink_link (GstPad * pad, const GstCaps * caps)
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GstStructure *structure = gst_caps_get_structure (caps, 0);
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GstXineAudioSink *xine =
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GST_XINE_AUDIO_SINK (gst_object_get_parent (GST_OBJECT (pad)));
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guint channels, temp, rate, width;
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if (!gst_structure_get_int (structure, "channels", &channels))
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return GST_PAD_LINK_REFUSED;
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mode = (channels == 1) ? AO_CAP_MODE_MONO : AO_CAP_MODE_STEREO;
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if (!gst_structure_get_int (structure, "rate", &rate))
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return GST_PAD_LINK_REFUSED;
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if (!gst_structure_get_int (structure, "width", &width))
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return GST_PAD_LINK_REFUSED;
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xine->driver->close (xine->driver);
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temp = xine->driver->open (xine->driver, width, rate, mode);
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return GST_PAD_LINK_REFUSED;
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xine->open = channels * width / 8;
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GST_WARNING_OBJECT (xine, "rates don't match (requested: %u, got %u)", rate,
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return GST_PAD_LINK_OK;
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/** GstXineAudioSink subclasses ************************************************/
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_STATIC_CAPS ("audio/x-raw-int, "
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"signed = (boolean) FALSE, "
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"rate = (int) [ 8000, 192000 ], "
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"channels = (int) [1, 2]; "
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"endianness = (int) BYTE_ORDER, "
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"signed = (boolean) TRUE, "
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"rate = (int) [ 8000, 192000 ], " "channels = (int) [1, 2]")
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gst_xine_audio_sink_subclass_init (gpointer g_class, gpointer class_data)
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GstXineAudioSinkClass *xine_class = GST_XINE_AUDIO_SINK_CLASS (g_class);
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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GstElementDetails details = GST_ELEMENT_DETAILS (NULL,
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"Benjamin Otte <otte@gnome.org>");
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xine_class->plugin_node = class_data;
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g_strdup_printf ("%s xine audio sink", xine_class->plugin_node->info->id);
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details.description =
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g_strdup_printf ("%s audio output using Xine",
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xine_class->plugin_node->info->id);
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gst_element_class_set_details (element_class, &details);
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g_free (details.longname);
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g_free (details.description);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_xine_audio_sink_sub_init (GTypeInstance * instance, gpointer g_class)
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GstElementClass *klass = GST_ELEMENT_GET_CLASS (instance);
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GstXineAudioSink *xine = GST_XINE_AUDIO_SINK (instance);
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gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
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gst_pad_set_chain_function (xine->sinkpad, gst_xine_audio_sink_chain);
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gst_pad_set_getcaps_function (xine->sinkpad, _xine_audio_sink_get_caps);
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gst_pad_set_link_function (xine->sinkpad, _xine_audio_sink_link);
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gst_element_add_pad (GST_ELEMENT (xine), xine->sinkpad);
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gst_xine_audio_sink_init_plugin (GstPlugin * plugin)
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GTypeInfo plugin_info = {
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sizeof (GstXineAudioSinkClass),
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gst_xine_audio_sink_subclass_init,
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sizeof (GstXineAudioSink),
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gst_xine_audio_sink_sub_init,
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klass = g_type_class_ref (GST_TYPE_XINE);
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node = xine_list_first_content (klass->xine->plugin_catalog->aout);
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gchar *plugin_name = g_strdup_printf ("xineaudiosink_%s", node->info->id);
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gchar *type_name = g_strdup_printf ("GstXineAudioSink%s", node->info->id);
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plugin_info.class_data = node;
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g_type_register_static (GST_TYPE_XINE_AUDIO_SINK, type_name,
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if (!gst_element_register (plugin, plugin_name, GST_RANK_MARGINAL, type)) {
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g_free (plugin_name);
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g_free (plugin_name);
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node = xine_list_next_content (klass->xine->plugin_catalog->aout);
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g_type_class_unref (klass);