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authorZeeshan Ali <zeenix@gmail.com>2003-01-30 20:24:26 +0000
committerZeeshan Ali <zeenix@gmail.com>2003-01-30 20:24:26 +0000
commit1c6ceb5c0bc0e572a47e0889818d06ea54365355 (patch)
treeb6614304f5c72b05a5654e75ae76a0c476539400 /ext/mas/massink.c
parent0d1b9d28becf937c3514ad1d79f8736d0741991e (diff)
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The first attempt to support MAS. Dont expect it to work :)
Original commit message from CVS: The first attempt to support MAS. Dont expect it to work :)
Diffstat (limited to 'ext/mas/massink.c')
-rw-r--r--ext/mas/massink.c546
1 files changed, 546 insertions, 0 deletions
diff --git a/ext/mas/massink.c b/ext/mas/massink.c
new file mode 100644
index 00000000..1b965beb
--- /dev/null
+++ b/ext/mas/massink.c
@@ -0,0 +1,546 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * Most of the code from maswavplay and esdsink
+ * 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 "massink.h"
+
+#define BUFFER_SIZE 640
+#define BUFFER_TIME_NS 3628118
+#define FORCED_STABLE_LOOPS 10
+#define NANOSLEEP_GRANULARITY 100000
+
+
+/* elementfactory information */
+static GstElementDetails massink_details = {
+ "Esound audio sink",
+ "Sink/Audio",
+ "LGPL",
+ "Plays audio to a MAS server",
+ VERSION,
+ "Zeeshan Ali <zak147@yahoo.com>",
+ "(C) 2003",
+};
+
+/* Signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_MUTE,
+ ARG_DEPTH,
+ ARG_CHANNELS,
+ ARG_RATE,
+ ARG_HOST,
+};
+
+GST_PAD_TEMPLATE_FACTORY (sink_factory,
+ "sink", /* the name of the pads */
+ GST_PAD_SINK, /* type of the pad */
+ GST_PAD_ALWAYS, /* ALWAYS/SOMETIMES */
+ GST_CAPS_NEW (
+ "massink_sink8", /* the name of the caps */
+ "audio/x-wav", /* the mime type of the caps */
+ NULL
+ )
+);
+
+static void gst_massink_class_init (GstMassinkClass *klass);
+static void gst_massink_init (GstMassink *massink);
+static void gst_massink_set_clock (GstElement *element, GstClock *clock);
+static gboolean gst_massink_open_audio (GstMassink *sink);
+//static void gst_massink_close_audio (GstMassink *sink);
+static GstElementStateReturn gst_massink_change_state (GstElement *element);
+static gboolean gst_massink_sync_parms (GstMassink *massink);
+static GstPadLinkReturn gst_massink_sinkconnect (GstPad *pad, GstCaps *caps);
+
+static void gst_massink_chain (GstPad *pad, GstBuffer *buf);
+
+static void gst_massink_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+static void gst_massink_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+#define GST_TYPE_MASSINK_DEPTHS (gst_massink_depths_get_type())
+static GType
+gst_massink_depths_get_type (void)
+{
+ static GType massink_depths_type = 0;
+ static GEnumValue massink_depths[] = {
+ {8, "8", "8 Bits"},
+ {16, "16", "16 Bits"},
+ {0, NULL, NULL},
+ };
+ if (!massink_depths_type) {
+ massink_depths_type = g_enum_register_static("GstMassinkDepths", massink_depths);
+ }
+ return massink_depths_type;
+}
+
+static GstElementClass *parent_class = NULL;
+/*static guint gst_massink_signals[LAST_SIGNAL] = { 0 }; */
+
+GType
+gst_massink_get_type (void)
+{
+ static GType massink_type = 0;
+
+ if (!massink_type) {
+ static const GTypeInfo massink_info = {
+ sizeof(GstMassinkClass), NULL,
+ NULL,
+ (GClassInitFunc)gst_massink_class_init,
+ NULL,
+ NULL,
+ sizeof(GstMassink),
+ 0,
+ (GInstanceInitFunc)gst_massink_init,
+ };
+ massink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstMassink", &massink_info, 0);
+ }
+ return massink_type;
+}
+
+static void
+gst_massink_class_init (GstMassinkClass *klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass*)klass;
+ gstelement_class = (GstElementClass*)klass;
+
+ parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_MUTE,
+ g_param_spec_boolean("mute","mute","mute",
+ TRUE,G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEPTH,
+ g_param_spec_enum("depth","depth","depth",
+ GST_TYPE_MASSINK_DEPTHS,16,G_PARAM_READWRITE)); /* CHECKME! */
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_RATE,
+ g_param_spec_int("frequency","frequency","frequency",
+ G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
+ g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HOST,
+ g_param_spec_string("host","host","host",
+ NULL, G_PARAM_READWRITE)); /* CHECKME */
+
+ gobject_class->set_property = gst_massink_set_property;
+ gobject_class->get_property = gst_massink_get_property;
+
+ gstelement_class->change_state = gst_massink_change_state;
+ gstelement_class->set_clock = gst_massink_set_clock;
+}
+
+static void
+gst_massink_set_clock (GstElement *element, GstClock *clock)
+{
+ GstMassink *massink;
+
+ massink = GST_MASSINK (element);
+
+ massink->clock = clock;
+}
+
+static void
+gst_massink_init(GstMassink *massink)
+{
+ massink->sinkpad = gst_pad_new_from_template (
+ GST_PAD_TEMPLATE_GET (sink_factory), "sink");
+ gst_element_add_pad(GST_ELEMENT(massink), massink->sinkpad);
+ gst_pad_set_chain_function(massink->sinkpad, GST_DEBUG_FUNCPTR(gst_massink_chain));
+ gst_pad_set_link_function(massink->sinkpad, gst_massink_sinkconnect);
+
+ massink->mute = FALSE;
+ massink->format = 16;
+ massink->depth = 16;
+ massink->channels = 2;
+ massink->frequency = 44100;
+ massink->host = NULL;
+}
+
+static gboolean
+gst_massink_sync_parms (GstMassink *massink)
+{
+ g_return_val_if_fail (massink != NULL, FALSE);
+ g_return_val_if_fail (GST_IS_MASSINK (massink), FALSE);
+
+ //gst_massink_close_audio (massink);
+ //return gst_massink_open_audio (massink);
+ return 1;
+}
+
+static GstPadLinkReturn
+gst_massink_sinkconnect (GstPad *pad, GstCaps *caps)
+{
+ GstMassink *massink;
+
+ massink = GST_MASSINK (gst_pad_get_parent (pad));
+
+ if (!GST_CAPS_IS_FIXED (caps))
+ return GST_PAD_LINK_DELAYED;
+
+ if (gst_massink_sync_parms (massink))
+ return GST_PAD_LINK_OK;
+
+ return GST_PAD_LINK_REFUSED;
+}
+
+static void
+gst_massink_chain (GstPad *pad, GstBuffer *buf)
+{
+ gint32 err;
+
+ g_return_if_fail(pad != NULL);
+ g_return_if_fail(GST_IS_PAD(pad));
+ g_return_if_fail(buf != NULL);
+
+ GstMassink *massink = GST_MASSINK (gst_pad_get_parent (pad));
+
+ if (massink->clock) {
+ GstClockID id = gst_clock_new_single_shot_id (massink->clock, GST_BUFFER_TIMESTAMP (buf));
+
+ GST_DEBUG (0, "massink: clock wait: %llu\n", GST_BUFFER_TIMESTAMP (buf));
+ gst_element_clock_wait (GST_ELEMENT (massink), id, NULL);
+ gst_clock_id_free (id);
+ }
+
+ if (GST_BUFFER_DATA (buf) != NULL) {
+ if (!massink->mute) {
+ GST_DEBUG (0, "massink: data=%p size=%d", GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+ if (GST_BUFFER_SIZE (buf) > BUFFER_SIZE) {
+ gst_buffer_unref (buf);
+ return;
+ }
+
+ massink->data->length = GST_BUFFER_SIZE (buf);
+
+ memcpy (massink->data->segment, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+
+ err = mas_send (massink->audio_channel, massink->data);
+
+ if (err < 0) {
+ g_print ("error sending data to MAS server\n");
+ gst_buffer_unref (buf);
+ return;
+ }
+
+ /* FIXME: Please correct the Timestamping if its wrong */
+ massink->data->header.media_timestamp += massink->data->length / 4;
+ massink->data->header.sequence++;
+ }
+ }
+
+ gst_buffer_unref (buf);
+}
+
+static void
+gst_massink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ GstMassink *massink;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_MASSINK(object));
+ massink = GST_MASSINK(object);
+
+ switch (prop_id) {
+ case ARG_MUTE:
+ massink->mute = g_value_get_boolean (value);
+ break;
+ case ARG_DEPTH:
+ massink->depth = g_value_get_enum (value);
+ gst_massink_sync_parms (massink);
+ break;
+ case ARG_CHANNELS:
+ massink->channels = g_value_get_enum (value);
+ gst_massink_sync_parms (massink);
+ break;
+ case ARG_RATE:
+ massink->frequency = g_value_get_int (value);
+ gst_massink_sync_parms (massink);
+ break;
+ case ARG_HOST:
+ if (massink->host != NULL) g_free(massink->host);
+ if (g_value_get_string (value) == NULL)
+ massink->host = NULL;
+ else
+ massink->host = g_strdup (g_value_get_string (value));
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gst_massink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ GstMassink *massink;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_MASSINK(object));
+ massink = GST_MASSINK(object);
+
+ switch (prop_id) {
+ case ARG_MUTE:
+ g_value_set_boolean (value, massink->mute);
+ break;
+ case ARG_DEPTH:
+ g_value_set_enum (value, massink->depth);
+ break;
+ case ARG_CHANNELS:
+ g_value_set_enum (value, massink->channels);
+ break;
+ case ARG_RATE:
+ g_value_set_int (value, massink->frequency);
+ break;
+ case ARG_HOST:
+ g_value_set_string (value, massink->host);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+plugin_init (GModule *module, GstPlugin *plugin)
+{
+ GstElementFactory *factory;
+
+ factory = gst_element_factory_new("massink", GST_TYPE_MASSINK,
+ &massink_details);
+ g_return_val_if_fail(factory != NULL, FALSE);
+
+ gst_element_factory_add_pad_template(factory, GST_PAD_TEMPLATE_GET (sink_factory));
+
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "massink",
+ plugin_init
+};
+
+static gboolean
+gst_massink_open_audio (GstMassink *massink)
+{
+ gint32 err;
+ char *ratestring = g_malloc (16);
+ char *bps = g_malloc (8);
+
+ struct mas_data_characteristic* dc;
+
+ g_print ("Connecting to MAS.\n");
+ masc_log_verbosity (MAS_VERBLVL_DEBUG);
+ err = mas_init();
+
+ if (err < 0) {
+ GST_DEBUG(err, "connection with local MAS server failed.");
+ exit (1);
+ }
+
+ GST_DEBUG (0, "Establishing audio output channel.");
+ mas_make_data_channel ("Gstreamer", &massink->audio_channel, &massink->audio_source, &massink->audio_sink);
+ mas_asm_get_port_by_name (0, "default_mix_sink", &massink->mix_sink);
+
+ GST_DEBUG (0, "Instantiating endian device.");
+ err = mas_asm_instantiate_device ("endian", 0, 0, &massink->endian);
+
+ if (err < 0) {
+ GST_DEBUG(0, "Failed to instantiate endian converter device");
+ exit(1);
+ }
+
+ mas_asm_get_port_by_name (massink->endian, "endian_sink", &massink->endian_sink);
+ mas_asm_get_port_by_name (massink->endian, "endian_source", &massink->endian_source);
+
+ sprintf (bps, "%u", massink->depth);
+ sprintf (ratestring, "%u", massink->frequency);
+
+ GST_DEBUG (0, "Connecting net -> endian.");
+ masc_make_dc (&dc, 6);
+
+ /* wav weirdness: 8 bit data is unsigned, >8 data is signed. */
+ masc_append_dc_key_value (dc, "format", (massink->depth==8) ? "ulinear":"linear");
+ masc_append_dc_key_value (dc, "resolution", bps);
+ masc_append_dc_key_value (dc, "sampling rate", ratestring);
+ masc_append_dc_key_value (dc, "channels", "2");
+ masc_append_dc_key_value (dc, "endian", "little");
+ err = mas_asm_connect_source_sink (massink->audio_source, massink->endian_sink, dc);
+
+ if ( err < 0 ) {
+ GST_DEBUG(err, "Failed to connect net audio output to endian");
+ return -1;
+ }
+
+ /* The next device is 'if needed' only. After the following if()
+ statement, open_source will contain the current unconnected
+ source in the path (will be either endian_source or
+ squant_source in this case)
+ */
+
+ massink->open_source = massink->endian_source;
+
+ if (massink->depth != 16) {
+ GST_DEBUG (0, "Sample resolution is not 16 bit/sample, instantiating squant device.");
+ err = mas_asm_instantiate_device ("squant", 0, 0, &massink->squant);
+ if (err < 0) {
+ GST_DEBUG(err, "Failed to instantiate squant device");
+ return -1;
+ }
+
+ mas_asm_get_port_by_name (massink->squant, "squant_sink", &massink->squant_sink);
+ mas_asm_get_port_by_name (massink->squant, "squant_source", &massink->squant_source);
+
+ GST_DEBUG (0, "Connecting endian -> squant.");
+
+ masc_make_dc (&dc, 6);
+ masc_append_dc_key_value (dc,"format",(massink->depth==8) ? "ulinear":"linear");
+ masc_append_dc_key_value (dc, "resolution", bps);
+ masc_append_dc_key_value (dc, "sampling rate", ratestring);
+ masc_append_dc_key_value (dc, "channels", "2");
+ masc_append_dc_key_value (dc, "endian", "host");
+ err = mas_asm_connect_source_sink (massink->endian_source, massink->squant_sink, dc);
+
+ if (err < 0) {
+ GST_DEBUG(err, "Failed to connect endian output to squant");
+ return -1;
+ }
+
+ /* sneaky: the squant device is optional -> pretend it isn't there */
+ massink->open_source = massink->squant_source;
+ }
+
+
+ /* Another 'if necessary' device, as above */
+ if (massink->frequency != 44100) {
+ GST_DEBUG (0, "Sample rate is not 44100, instantiating srate device.");
+ err = mas_asm_instantiate_device ("srate", 0, 0, &massink->srate);
+
+ if (err < 0) {
+ GST_DEBUG (err, "Failed to instantiate srate device");
+ return -1;
+ }
+
+ mas_asm_get_port_by_name (massink->srate, "sink", &massink->srate_sink);
+ mas_asm_get_port_by_name (massink->srate, "source", &massink->srate_source);
+
+ GST_DEBUG (0, "Connecting to srate.");
+ masc_make_dc (&dc, 6);
+ masc_append_dc_key_value (dc, "format", "linear");
+ masc_append_dc_key_value (dc, "resolution", "16");
+ masc_append_dc_key_value (dc, "sampling rate", ratestring);
+ masc_append_dc_key_value (dc, "channels", "2");
+ masc_append_dc_key_value (dc, "endian", "host");
+
+ err = mas_asm_connect_source_sink (massink->open_source, massink->srate_sink, dc);
+
+ if ( err < 0 ) {
+ GST_DEBUG(err, "Failed to connect to srate");
+ return -1;
+ }
+
+
+ massink->open_source = massink->srate_source;
+ }
+
+ GST_DEBUG(0, "Connecting to mix.");
+ masc_make_dc(&dc, 6);
+ masc_append_dc_key_value (dc, "format", "linear");
+ masc_append_dc_key_value (dc, "resolution", "16");
+ masc_append_dc_key_value (dc, "sampling rate", "44100");
+ masc_append_dc_key_value (dc, "channels", "2");
+ masc_append_dc_key_value (dc, "endian", "host");
+
+ err = mas_asm_connect_source_sink (massink->open_source, massink->mix_sink, dc);
+
+ if ( err < 0 ) {
+ GST_DEBUG(err, "Failed to connect to mixer");
+ return -1;
+ }
+
+ GST_FLAG_SET (massink, GST_MASSINK_OPEN);
+
+ masc_make_mas_data (&massink->data, BUFFER_SIZE);
+
+ massink->data->header.type = 10;
+
+ massink->data->header.media_timestamp = 0;
+ massink->data->header.sequence = 0;
+
+ return TRUE;
+}
+
+/*static void
+gst_massink_close_audio (GstMassink *massink)
+{
+ mas_free_device(massink->endian);
+ mas_free_device(massink->srate);
+ mas_free_device(massink->squant);
+
+ mas_free_port(massink->mix_sink);
+ mas_free_port(massink->srate_source);
+ mas_free_port(massink->srate_sink);
+ mas_free_port(massink->audio_source);
+ mas_free_port(massink->audio_sink);
+ mas_free_port(massink->endian_source);
+ mas_free_port(massink->endian_sink);
+ mas_free_port(massink->squant_source);
+ mas_free_port(massink->squant_sink);
+ mas_free_port(massink->open_source);
+
+ mas_free_channel (massink->audio_channel);
+ masc_destroy_mas_data (massink->data);
+
+ g_free (ratestring);
+ g_free (bps);
+
+ GST_FLAG_UNSET (massink, GST_MASSINK_OPEN);
+
+ GST_DEBUG (0, "massink: closed sound channel");
+}*/
+
+static GstElementStateReturn
+gst_massink_change_state (GstElement *element)
+{
+ g_return_val_if_fail (GST_IS_MASSINK (element), FALSE);
+
+ /* if going down into NULL state, close the fd if it's open */
+ if (GST_STATE_PENDING (element) == GST_STATE_NULL) {
+ //if (GST_FLAG_IS_SET (element, GST_MASSINK_OPEN))
+ //gst_massink_close_audio (GST_MASSINK (element));
+ /* otherwise (READY or higher) we need to open the fd */
+ } else {
+ if (!GST_FLAG_IS_SET (element, GST_MASSINK_OPEN)) {
+ if (!gst_massink_open_audio (GST_MASSINK (element)))
+ return GST_STATE_FAILURE;
+ }
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+ return GST_STATE_SUCCESS;
+}
+