2004-01-21 06:57:30 +00:00
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/* GStreamer
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* Copyright (C) <2003> Laurent Vivier <Laurent.Vivier@bull.net>
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* Copyright (C) <2004> Arwed v. Merkatz <v.merkatz@gmx.net>
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*
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* Based on esdsink.c:
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* Copyright (C) <2001> Richard Boulton <richard-gst@tartarus.org>
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*
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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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*
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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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*
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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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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <string.h>
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#include <audio/audiolib.h>
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#include <audio/soundlib.h>
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#include "nassink.h"
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#define NAS_SOUND_PORT_DURATION (2)
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2004-03-07 11:24:38 +00:00
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GST_DEBUG_CATEGORY(NAS);
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2004-01-21 06:57:30 +00:00
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/* Signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_MUTE,
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ARG_HOST
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};
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static GstStaticPadTemplate sink_factory =
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GST_STATIC_PAD_TEMPLATE (
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"sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS(
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"audio/x-raw-int, "
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"endianess = (int) BYTE_ORDER, "
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"signed = (boolean) TRUE, "
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"width = (int) 16, "
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"depth = (int) 16, "
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2004-03-08 22:24:47 +00:00
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"rate = (int) [ 1000, 96000 ], "
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2004-01-21 06:57:30 +00:00
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"channels = (int) [ 1, 2 ]; "
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"audio/x-raw-int, "
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"signed = (boolean) FALSE, "
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"width = (int) 8, "
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"depth = (int) 8, "
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2004-03-08 22:24:47 +00:00
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"rate = (int) [ 1000, 96000 ], "
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2004-01-21 06:57:30 +00:00
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"channels = (int) [ 1, 2 ]"
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)
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);
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static void gst_nassink_base_init (gpointer g_class);
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static void gst_nassink_class_init (GstNassinkClass *klass);
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static void gst_nassink_init (GstNassink *nassink);
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static gboolean gst_nassink_open_audio (GstNassink *sink);
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static void gst_nassink_close_audio (GstNassink *sink);
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static GstElementStateReturn gst_nassink_change_state (GstElement *element);
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2004-03-08 22:24:47 +00:00
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static GstCaps* gst_nassink_getcaps (GstPad *pad);
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2004-01-21 06:57:30 +00:00
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static gboolean gst_nassink_sync_parms (GstNassink *nassink);
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static GstPadLinkReturn gst_nassink_sinkconnect (GstPad *pad, const GstCaps *caps);
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static void gst_nassink_chain (GstPad *pad, GstData *_data);
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static void gst_nassink_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static void gst_nassink_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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static void NAS_flush (GstNassink *sink);
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static void NAS_sendData (GstNassink *sink, AuUint32 numBytes);
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static AuBool NAS_EventHandler (AuServer *aud, AuEvent *ev, AuEventHandlerRec *handler);
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static AuDeviceID NAS_getDevice (AuServer* aud, int numTracks);
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static int NAS_allocBuffer (GstNassink *sink);
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static int NAS_createFlow (GstNassink *sink, unsigned char format, unsigned short rate, int numTracks);
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static GstElementClass *parent_class = NULL;
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GType
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gst_nassink_get_type (void)
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{
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static GType nassink_type = 0;
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if (!nassink_type) {
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static const GTypeInfo nassink_info = {
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sizeof(GstNassinkClass),
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gst_nassink_base_init,
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NULL,
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(GClassInitFunc)gst_nassink_class_init,
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NULL,
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NULL,
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sizeof(GstNassink),
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0,
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(GInstanceInitFunc)gst_nassink_init,
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};
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nassink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstNassink", &nassink_info, 0);
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}
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return nassink_type;
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}
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static void
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gst_nassink_base_init (gpointer g_class)
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{
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static GstElementDetails nassink_details = {
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"NAS sink",
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"Sink/Audio",
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"Plays audio to a Network Audio Server",
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"Laurent Vivier <Laurent.Vivier@bull.net>, "
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"Arwed v. Merkatz <v.merkatz@gmx.net>"
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};
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_factory));
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gst_element_class_set_details (element_class, &nassink_details);
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2004-03-07 11:24:38 +00:00
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GST_DEBUG_CATEGORY_INIT(NAS, "NAS", 0, NULL);
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2004-01-21 06:57:30 +00:00
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}
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static void
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gst_nassink_class_init (GstNassinkClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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if (parent_class == NULL)
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parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_nassink_set_property;
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gobject_class->get_property = gst_nassink_get_property;
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
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g_param_spec_boolean("mute","mute","mute",
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TRUE,G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HOST,
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g_param_spec_string("host","host","host",
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NULL, G_PARAM_READWRITE)); /* CHECKME */
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gstelement_class->change_state = gst_nassink_change_state;
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}
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static void
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gst_nassink_init(GstNassink *nassink)
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{
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2004-03-07 11:24:38 +00:00
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GST_CAT_DEBUG(NAS,"nassink: init");
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2004-01-21 06:57:30 +00:00
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nassink->sinkpad = gst_pad_new_from_template (
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gst_static_pad_template_get (&sink_factory), "sink");
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gst_element_add_pad(GST_ELEMENT(nassink), nassink->sinkpad);
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gst_pad_set_chain_function(nassink->sinkpad, GST_DEBUG_FUNCPTR(gst_nassink_chain));
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gst_pad_set_link_function(nassink->sinkpad, gst_nassink_sinkconnect);
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2004-03-08 22:24:47 +00:00
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gst_pad_set_getcaps_function(nassink->sinkpad, gst_nassink_getcaps);
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2004-01-21 06:57:30 +00:00
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nassink->mute = FALSE;
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nassink->depth = 16;
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nassink->tracks = 2;
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nassink->rate = 44100;
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nassink->host = g_strdup (getenv("AUDIOSERVER"));
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if (nassink->host == NULL)
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nassink->host = g_strdup (getenv("DISPLAY"));
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nassink->audio = NULL;
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nassink->flow = AuNone;
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nassink->size = 0;
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nassink->pos = 0;
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nassink->buf = NULL;
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}
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2004-03-08 22:24:47 +00:00
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static GstCaps*
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gst_nassink_getcaps (GstPad *pad)
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{
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GstNassink *nassink = GST_NASSINK(gst_pad_get_parent(pad));
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GstCaps *templatecaps = gst_caps_copy(gst_pad_get_pad_template_caps(pad));
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GstCaps *caps;
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int i;
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AuServer *server;
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server = AuOpenServer(nassink->host, 0, NULL, 0, NULL, NULL);
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if (!server)
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return templatecaps;
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for (i = 0; i < gst_caps_get_size (templatecaps); i++) {
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GstStructure *structure = gst_caps_get_structure (templatecaps, i);
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gst_structure_set (structure, "rate", GST_TYPE_INT_RANGE, AuServerMinSampleRate(server), AuServerMaxSampleRate(server), NULL);
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}
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caps = gst_caps_intersect(templatecaps, gst_pad_get_pad_template_caps(pad));
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gst_caps_free(templatecaps);
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return caps;
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}
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2004-01-21 06:57:30 +00:00
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static gboolean
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gst_nassink_sync_parms (GstNassink *nassink)
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{
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gint ret;
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unsigned char format;
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g_return_val_if_fail (nassink != NULL, FALSE);
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g_return_val_if_fail (GST_IS_NASSINK (nassink), FALSE);
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if (nassink->audio == NULL) return TRUE;
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2004-03-07 11:24:38 +00:00
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GST_CAT_DEBUG(NAS,"depth=%i rate=%i", nassink->depth, nassink->rate);
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2004-01-21 06:57:30 +00:00
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if (nassink->flow != AuNone)
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{
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2004-03-07 11:24:38 +00:00
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GST_CAT_DEBUG(NAS,"flushing buffer");
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2004-01-21 06:57:30 +00:00
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while (nassink->pos && nassink->buf)
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NAS_flush(nassink);
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AuStopFlow( nassink->audio, nassink->flow, NULL);
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AuReleaseScratchFlow(nassink->audio, nassink->flow, NULL);
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nassink->flow = AuNone;
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}
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if (nassink->depth == 16)
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#if G_BYTE_ORDER == G_BIG_ENDIAN
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format = AuFormatLinearSigned16MSB;
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#else
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format = AuFormatLinearSigned16LSB;
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#endif
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else
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format = AuFormatLinearUnsigned8;
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ret = NAS_createFlow(nassink, format, nassink->rate, nassink->tracks);
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return ret >= 0;
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}
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static GstPadLinkReturn
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gst_nassink_sinkconnect (GstPad *pad, const GstCaps *caps)
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{
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GstNassink *nassink;
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GstStructure *structure;
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nassink = GST_NASSINK (gst_pad_get_parent (pad));
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_get_int (structure, "depth", &nassink->depth);
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gst_structure_get_int (structure, "channels", &nassink->tracks);
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gst_structure_get_int (structure, "rate", &nassink->rate);
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if (!gst_nassink_sync_parms(nassink))
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return GST_PAD_LINK_REFUSED;
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return GST_PAD_LINK_OK;
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}
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static void
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gst_nassink_chain (GstPad *pad, GstData *_data)
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{
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GstBuffer *buf = GST_BUFFER (_data);
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int pos = 0;
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int remaining;
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int available;
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GstNassink *nassink;
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g_return_if_fail(pad != NULL);
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g_return_if_fail(GST_IS_PAD(pad));
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g_return_if_fail(buf != NULL);
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nassink = GST_NASSINK (gst_pad_get_parent (pad));
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g_return_if_fail(nassink->buf != NULL);
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if (GST_BUFFER_DATA (buf) != NULL) {
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if (!nassink->mute && nassink->audio != NULL) {
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remaining = GST_BUFFER_SIZE (buf);
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while ((nassink->flow != AuNone) && ( remaining > 0)) {
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/* number of bytes we can copy to buffer */
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available = remaining > nassink->size - nassink->pos ?
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nassink->size - nassink->pos : remaining;
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/* fill the buffer */
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memcpy (nassink->buf + nassink->pos, GST_BUFFER_DATA (buf) + pos, available);
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nassink->pos += available;
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pos += available;
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remaining -= available;
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/* if we have more bytes, need to flush the buffer */
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if (remaining > 0) {
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while ((nassink->flow != AuNone) && (nassink->pos == nassink->size)) {
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NAS_flush(nassink);
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}
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}
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}
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/* give some time to event handler */
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AuSync(nassink->audio, AuFalse);
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}
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}
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gst_buffer_unref (buf);
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}
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static void
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gst_nassink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstNassink *nassink;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_NASSINK(object));
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nassink = GST_NASSINK(object);
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switch (prop_id) {
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case ARG_MUTE:
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nassink->mute = g_value_get_boolean (value);
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break;
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case ARG_HOST:
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if (nassink->host != NULL) g_free(nassink->host);
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|
|
if (g_value_get_string (value) == NULL)
|
|
|
|
nassink->host = NULL;
|
|
|
|
else
|
|
|
|
nassink->host = g_strdup (g_value_get_string (value));
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_nassink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
|
|
|
|
{
|
|
|
|
GstNassink *nassink;
|
|
|
|
|
|
|
|
g_return_if_fail(GST_IS_NASSINK(object));
|
|
|
|
|
|
|
|
nassink = GST_NASSINK(object);
|
|
|
|
|
|
|
|
switch (prop_id) {
|
|
|
|
case ARG_MUTE:
|
|
|
|
g_value_set_boolean (value, nassink->mute);
|
|
|
|
break;
|
|
|
|
case ARG_HOST:
|
|
|
|
g_value_set_string (value, nassink->host);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
plugin_init (GstPlugin *plugin)
|
|
|
|
{
|
|
|
|
if (!gst_element_register (plugin, "nassink", GST_RANK_NONE,
|
|
|
|
GST_TYPE_NASSINK)){
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
GST_PLUGIN_DEFINE (
|
|
|
|
GST_VERSION_MAJOR,
|
|
|
|
GST_VERSION_MINOR,
|
|
|
|
"nassink",
|
|
|
|
"uses NAS for audio output",
|
|
|
|
plugin_init,
|
|
|
|
VERSION,
|
|
|
|
"LGPL",
|
|
|
|
GST_PACKAGE,
|
|
|
|
GST_ORIGIN
|
|
|
|
);
|
|
|
|
|
|
|
|
static gboolean
|
|
|
|
gst_nassink_open_audio (GstNassink *sink)
|
|
|
|
{
|
|
|
|
/* Open Server */
|
|
|
|
|
|
|
|
sink->audio = AuOpenServer(sink->host, 0, NULL, 0, NULL, NULL);
|
|
|
|
if (sink->audio == NULL)
|
|
|
|
return FALSE;
|
2004-03-08 22:24:47 +00:00
|
|
|
sink->device = NAS_getDevice(sink->audio, sink->tracks);
|
|
|
|
if (sink->device == AuNone) {
|
|
|
|
GST_CAT_DEBUG(NAS,"no device with %i tracks found", sink->tracks);
|
|
|
|
return FALSE;
|
|
|
|
}
|
2004-01-21 06:57:30 +00:00
|
|
|
|
|
|
|
sink->flow = AuNone;
|
|
|
|
sink->size = 0;
|
|
|
|
sink->pos = 0;
|
|
|
|
sink->buf = NULL;
|
|
|
|
|
|
|
|
/* Start a flow */
|
|
|
|
|
|
|
|
GST_FLAG_SET (sink, GST_NASSINK_OPEN);
|
|
|
|
|
2004-03-07 11:24:38 +00:00
|
|
|
GST_CAT_DEBUG(NAS,"opened audio device");
|
2004-01-21 06:57:30 +00:00
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gst_nassink_close_audio (GstNassink *sink)
|
|
|
|
{
|
|
|
|
if (sink->audio == NULL) return;
|
|
|
|
|
|
|
|
if (sink->flow != AuNone) {
|
|
|
|
while (sink->pos && sink->buf) {
|
|
|
|
NAS_flush(sink);
|
|
|
|
}
|
|
|
|
|
|
|
|
AuStopFlow( sink->audio, sink->flow, NULL);
|
|
|
|
AuReleaseScratchFlow(sink->audio, sink->flow, NULL);
|
|
|
|
sink->flow = AuNone;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sink->buf != NULL)
|
|
|
|
{
|
|
|
|
free(sink->buf);
|
|
|
|
sink->buf = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
AuCloseServer(sink->audio);
|
|
|
|
sink->audio = NULL;
|
|
|
|
|
|
|
|
GST_FLAG_UNSET (sink, GST_NASSINK_OPEN);
|
|
|
|
|
2004-03-07 11:24:38 +00:00
|
|
|
GST_CAT_DEBUG (NAS,"closed audio device");
|
2004-01-21 06:57:30 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static GstElementStateReturn
|
|
|
|
gst_nassink_change_state (GstElement *element)
|
|
|
|
{
|
|
|
|
GstNassink *nassink;
|
|
|
|
g_return_val_if_fail (GST_IS_NASSINK (element), FALSE);
|
|
|
|
|
|
|
|
nassink = GST_NASSINK (element);
|
|
|
|
|
|
|
|
switch (GST_STATE_PENDING (element)) {
|
|
|
|
case GST_STATE_NULL:
|
|
|
|
if (GST_FLAG_IS_SET (element, GST_NASSINK_OPEN))
|
|
|
|
gst_nassink_close_audio (nassink);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case GST_STATE_READY:
|
|
|
|
if (!GST_FLAG_IS_SET (element, GST_NASSINK_OPEN))
|
|
|
|
gst_nassink_open_audio (nassink);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case GST_STATE_PAUSED:
|
|
|
|
while (nassink->pos && nassink->buf)
|
|
|
|
NAS_flush(nassink);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case GST_STATE_PLAYING:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (GST_ELEMENT_CLASS (parent_class)->change_state)
|
|
|
|
return GST_ELEMENT_CLASS (parent_class)->change_state (element);
|
|
|
|
|
|
|
|
return GST_STATE_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
NAS_flush(GstNassink *sink)
|
|
|
|
{
|
|
|
|
AuEvent ev;
|
|
|
|
|
|
|
|
AuNextEvent(sink->audio, AuTrue, &ev);
|
|
|
|
AuDispatchEvent(sink->audio, &ev);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
NAS_sendData(GstNassink *sink, AuUint32 numBytes)
|
|
|
|
{
|
|
|
|
if (numBytes < (sink->pos)) {
|
|
|
|
|
|
|
|
AuWriteElement(sink->audio, sink->flow, 0,
|
|
|
|
numBytes, sink->buf, AuFalse, NULL);
|
|
|
|
|
|
|
|
memmove(sink->buf, sink->buf + numBytes,
|
|
|
|
sink->pos - numBytes);
|
|
|
|
|
|
|
|
sink->pos = sink->pos - numBytes;
|
|
|
|
|
|
|
|
} else
|
|
|
|
{
|
|
|
|
AuWriteElement(sink->audio, sink->flow, 0,
|
|
|
|
sink->pos, sink->buf,
|
|
|
|
(numBytes > sink->pos), NULL);
|
|
|
|
sink->pos = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static AuBool
|
|
|
|
NAS_EventHandler(AuServer *aud, AuEvent *ev, AuEventHandlerRec *handler)
|
|
|
|
{
|
|
|
|
GstNassink *sink = (GstNassink *)handler->data;
|
|
|
|
AuElementNotifyEvent *notify;
|
|
|
|
|
|
|
|
switch (ev->type) {
|
|
|
|
|
|
|
|
case AuEventTypeElementNotify:
|
|
|
|
|
|
|
|
notify = (AuElementNotifyEvent *) ev;
|
|
|
|
|
|
|
|
switch(notify->kind) {
|
|
|
|
|
|
|
|
case AuElementNotifyKindLowWater:
|
|
|
|
NAS_sendData(sink, notify->num_bytes);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AuElementNotifyKindState:
|
|
|
|
|
|
|
|
switch(notify->cur_state) {
|
|
|
|
|
|
|
|
case AuStateStop:
|
|
|
|
|
|
|
|
if (sink->flow != AuNone) {
|
|
|
|
if (notify->reason == AuReasonEOF)
|
|
|
|
AuStopFlow(handler->aud, sink->flow, NULL);
|
|
|
|
AuReleaseScratchFlow(handler->aud, sink->flow, NULL);
|
|
|
|
sink->flow = AuNone;
|
|
|
|
}
|
|
|
|
AuUnregisterEventHandler(handler->aud, handler);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AuStatePause:
|
|
|
|
|
|
|
|
switch(notify->reason) {
|
|
|
|
case AuReasonUnderrun:
|
|
|
|
case AuReasonOverrun:
|
|
|
|
case AuReasonEOF:
|
|
|
|
case AuReasonWatermark:
|
|
|
|
|
|
|
|
NAS_sendData(sink, notify->num_bytes);
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AuReasonHardware:
|
|
|
|
|
|
|
|
if (AuSoundRestartHardwarePauses)
|
|
|
|
AuStartFlow(handler->aud, sink->flow, NULL);
|
|
|
|
else
|
|
|
|
AuStopFlow(handler->aud, sink->flow, NULL);
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return AuTrue;
|
|
|
|
}
|
|
|
|
|
|
|
|
static AuDeviceID
|
|
|
|
NAS_getDevice(AuServer* aud, int numTracks)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < AuServerNumDevices(aud); i++) {
|
|
|
|
if ( (AuDeviceKind(AuServerDevice(aud, i))
|
|
|
|
== AuComponentKindPhysicalOutput) &&
|
|
|
|
(AuDeviceNumTracks(AuServerDevice(aud, i)) == numTracks )) {
|
|
|
|
|
|
|
|
return AuDeviceIdentifier(AuServerDevice(aud, i));
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return AuNone;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
NAS_allocBuffer(GstNassink *sink)
|
|
|
|
{
|
|
|
|
if (sink->buf != NULL) {
|
|
|
|
free(sink->buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
sink->buf = (char *) malloc(sink->size);
|
|
|
|
if (sink->buf == NULL) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
sink->pos = 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
NAS_createFlow(GstNassink *sink, unsigned char format, unsigned short rate, int numTracks)
|
|
|
|
{
|
|
|
|
AuElement elements[2];
|
|
|
|
AuUint32 buf_samples;
|
|
|
|
|
|
|
|
sink->flow = AuGetScratchFlow(sink->audio, NULL);
|
|
|
|
if (sink->flow == 0) {
|
2004-03-07 11:24:38 +00:00
|
|
|
GST_CAT_DEBUG(NAS,"couldn't get flow");
|
2004-01-21 06:57:30 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2004-03-07 11:24:38 +00:00
|
|
|
/* free old Elements and reconnet to server, needed to change samplerate */
|
|
|
|
{
|
|
|
|
AuBool clocked;
|
|
|
|
int num_elements;
|
|
|
|
AuStatus status;
|
|
|
|
AuElement *oldelems;
|
|
|
|
oldelems = AuGetElements(sink->audio, sink->flow, &clocked, &num_elements, &status);
|
|
|
|
if (num_elements > 0) {
|
|
|
|
GST_CAT_DEBUG(NAS,"GetElements status: %i", status);
|
|
|
|
if (oldelems)
|
|
|
|
AuFreeElements(sink->audio, num_elements, oldelems);
|
|
|
|
gst_nassink_close_audio(sink);
|
|
|
|
gst_nassink_open_audio(sink);
|
|
|
|
sink->flow = AuGetScratchFlow(sink->audio, NULL);
|
|
|
|
if (sink->flow == 0) {
|
|
|
|
GST_CAT_DEBUG(NAS,"couldn't get flow");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-03-08 22:24:47 +00:00
|
|
|
/* free old Elements and reconnet to server, needed to change samplerate */
|
|
|
|
{
|
|
|
|
AuBool clocked;
|
|
|
|
int num_elements;
|
|
|
|
AuStatus status;
|
|
|
|
AuElement *oldelems;
|
|
|
|
oldelems = AuGetElements(sink->audio, sink->flow, &clocked, &num_elements, &status);
|
|
|
|
if (num_elements > 0) {
|
|
|
|
GST_CAT_DEBUG(NAS,"GetElements status: %i", status);
|
|
|
|
if (oldelems)
|
|
|
|
AuFreeElements(sink->audio, num_elements, oldelems);
|
|
|
|
gst_nassink_close_audio(sink);
|
|
|
|
gst_nassink_open_audio(sink);
|
|
|
|
sink->flow = AuGetScratchFlow(sink->audio, NULL);
|
|
|
|
if (sink->flow == 0) {
|
|
|
|
GST_CAT_DEBUG(NAS,"couldn't get flow");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2004-01-21 06:57:30 +00:00
|
|
|
buf_samples = rate * NAS_SOUND_PORT_DURATION;
|
|
|
|
|
2004-03-07 11:24:38 +00:00
|
|
|
|
2004-01-21 06:57:30 +00:00
|
|
|
AuMakeElementImportClient( &elements[0], /* element */
|
|
|
|
rate, /* rate */
|
|
|
|
format, /* format */
|
|
|
|
numTracks, /* number of tracks */
|
|
|
|
AuTrue, /* discart */
|
|
|
|
buf_samples, /* max samples */
|
|
|
|
(AuUint32) (buf_samples / 100
|
|
|
|
* AuSoundPortLowWaterMark),
|
|
|
|
/* low water mark */
|
|
|
|
0, /* num actions */
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
AuMakeElementExportDevice( &elements[1], /* element */
|
|
|
|
0, /* input */
|
2004-03-08 22:24:47 +00:00
|
|
|
sink->device, /* device */
|
2004-01-21 06:57:30 +00:00
|
|
|
rate, /* rate */
|
|
|
|
AuUnlimitedSamples, /* num samples */
|
|
|
|
0, /* num actions */
|
|
|
|
NULL); /* actions */
|
|
|
|
|
|
|
|
AuSetElements( sink->audio, /* server */
|
|
|
|
sink->flow, /* flow ID */
|
|
|
|
AuTrue, /* clocked */
|
|
|
|
2, /* num elements */
|
|
|
|
elements, /* elements */
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
AuRegisterEventHandler( sink->audio, /* server */
|
|
|
|
AuEventHandlerIDMask, /* value mask */
|
|
|
|
0, /* type */
|
|
|
|
sink->flow, /* flow ID */
|
|
|
|
NAS_EventHandler, /* callback */
|
|
|
|
(AuPointer)sink); /* data */
|
|
|
|
|
|
|
|
sink->size = buf_samples * numTracks * AuSizeofFormat(format);
|
|
|
|
|
|
|
|
if (NAS_allocBuffer(sink) < 0) {
|
|
|
|
|
|
|
|
AuReleaseScratchFlow(sink->audio, sink->flow, NULL);
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
AuStartFlow(sink->audio, sink->flow, NULL);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|