--- /dev/null
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ * 2000 Wim Taymans <wtay@chello.be>
+ *
+ * gstsunaudiosrc.c:
+ *
+ * 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 <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/audioio.h>
+
+#include <gstsunaudiosrc.h>
+#include <gstsunelement.h>
+
+/* elementfactory information */
+static GstElementDetails gst_sunaudiosrc_details =
+GST_ELEMENT_DETAILS ("SunAudioSource",
+ "Source/Audio",
+ "Audio source for Sun Audio devices",
+ "Balamurali Viswanathan <balamurali.viswanathan@wipro.com>");
+
+enum
+{
+ ARG_0,
+ ARG_DEVICE,
+ ARG_BUFFER_SIZE
+};
+
+/*Pending Bala check this template */
+static GstStaticPadTemplate gst_sunaudiosrc_src_factory =
+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) [ 5510, 48000 ], " "channels = (int) [ 1, 2 ]")
+ );
+
+static void gst_sunaudiosrc_base_init (gpointer g_class);
+static void gst_sunaudiosrc_class_init (GstSunAudioSrcClass * klass);
+static void gst_sunaudiosrc_init (GstSunAudioSrc * sunaudiosrc);
+
+static void gst_sunaudiosrc_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_sunaudiosrc_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstElementStateReturn gst_sunaudiosrc_change_state (GstElement *
+ element);
+
+static gboolean gst_sunaudiosrc_setparams (GstSunAudioSrc * sunaudiosrc);
+static GstData *gst_sunaudiosrc_get (GstPad * pad);
+static GstCaps *gst_sunaudiosrc_getcaps (GstPad * pad);
+static GstPadLinkReturn gst_sunaudiosrc_pad_link (GstPad * pad,
+ const GstCaps * caps);
+
+static gboolean gst_sunaudiosrc_open (GstSunAudioSrc * sunaudiosrc);
+static void gst_sunaudiosrc_close (GstSunAudioSrc * sunaudiosrc);
+
+static GstElementClass *parent_class = NULL;
+
+GType
+gst_sunaudiosrc_get_type (void)
+{
+ static GType sunaudiosrc_type = 0;
+
+ if (!sunaudiosrc_type) {
+ static const GTypeInfo sunaudiosrc_info = {
+ sizeof (GstSunAudioSrcClass),
+ gst_sunaudiosrc_base_init,
+ NULL,
+ (GClassInitFunc) gst_sunaudiosrc_class_init,
+ NULL,
+ NULL,
+ sizeof (GstSunAudioSrc),
+ 0,
+ (GInstanceInitFunc) gst_sunaudiosrc_init,
+ };
+
+ sunaudiosrc_type = g_type_register_static (GST_TYPE_SUNAUDIOELEMENT,
+ "GstSunAudioSrc", &sunaudiosrc_info, 0);
+ }
+ return sunaudiosrc_type;
+}
+
+static void
+gst_sunaudiosrc_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_set_details (element_class, &gst_sunaudiosrc_details);
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_sunaudiosrc_src_factory));
+}
+
+static void
+gst_sunaudiosrc_class_init (GstSunAudioSrcClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ parent_class = g_type_class_ref (GST_TYPE_SUNAUDIOELEMENT);
+
+ gobject_class->set_property = gst_sunaudiosrc_set_property;
+ gobject_class->get_property = gst_sunaudiosrc_get_property;
+
+ gstelement_class->change_state = gst_sunaudiosrc_change_state;
+
+ g_object_class_install_property (gobject_class, ARG_DEVICE,
+ g_param_spec_string ("device", "Device", "Audio Device (/dev/audio)",
+ "/dev/audio", G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class, ARG_BUFFER_SIZE,
+ g_param_spec_int ("buffer_size", "Buffer Size", "Buffer Size",
+ 1, G_MAXINT, 64, G_PARAM_READWRITE));
+
+}
+
+
+static void
+gst_sunaudiosrc_init (GstSunAudioSrc * sunaudiosrc)
+{
+ const char *audiodev;
+
+ sunaudiosrc->srcpad =
+ gst_pad_new_from_template (gst_static_pad_template_get
+ (&gst_sunaudiosrc_src_factory), "src");
+
+ gst_pad_set_get_function (sunaudiosrc->srcpad, gst_sunaudiosrc_get);
+ gst_pad_set_getcaps_function (sunaudiosrc->srcpad, gst_sunaudiosrc_getcaps);
+ gst_pad_set_link_function (sunaudiosrc->srcpad, gst_sunaudiosrc_pad_link);
+
+ gst_element_add_pad (GST_ELEMENT (sunaudiosrc), sunaudiosrc->srcpad);
+
+ sunaudiosrc->buffer_size = 64;
+
+ audiodev = g_getenv ("AUDIODEV");
+ if (audiodev == NULL)
+ audiodev = "/dev/audio";
+ sunaudiosrc->device = g_strdup (audiodev);
+
+}
+
+static void
+gst_sunaudiosrc_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstSunAudioSrc *sunaudiosrc;
+
+ g_return_if_fail (GST_IS_SUNAUDIOSRC (object));
+ sunaudiosrc = GST_SUNAUDIOSRC (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ if (gst_element_get_state (GST_ELEMENT (sunaudiosrc)) == GST_STATE_NULL) {
+ g_free (sunaudiosrc->device);
+ sunaudiosrc->device = g_strdup (g_value_get_string (value));
+ }
+ break;
+ case ARG_BUFFER_SIZE:
+ if (gst_element_get_state (GST_ELEMENT (sunaudiosrc)) == GST_STATE_NULL) {
+ sunaudiosrc->buffer_size = g_value_get_int (value);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_sunaudiosrc_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstSunAudioSrc *sunaudiosrc;
+
+ g_return_if_fail (GST_IS_SUNAUDIOSRC (object));
+ sunaudiosrc = GST_SUNAUDIOSRC (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ g_value_set_string (value, sunaudiosrc->device);
+ break;
+ case ARG_BUFFER_SIZE:
+ g_value_set_int (value, sunaudiosrc->buffer_size);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gst_sunaudiosrc_open (GstSunAudioSrc * sunaudiosrc)
+{
+ int fd, ret;
+
+ fd = open ("/dev/audio", O_RDONLY);
+ if (fd == -1) {
+ /* FIXME error */
+ return FALSE;
+ } else {
+ sunaudiosrc->fd = fd;
+ }
+
+ ret = ioctl (fd, AUDIO_GETDEV, &sunaudiosrc->dev);
+ if (ret == -1) {
+ GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, SETTINGS, (NULL), ("%s",
+ strerror (errno)));
+ return FALSE;
+ }
+
+ GST_INFO ("name %s", sunaudiosrc->dev.name);
+ GST_INFO ("version %s", sunaudiosrc->dev.version);
+ GST_INFO ("config %s", sunaudiosrc->dev.config);
+
+ ret = ioctl (fd, AUDIO_GETINFO, &sunaudiosrc->info);
+ if (ret == -1) {
+ GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, SETTINGS, (NULL), ("%s",
+ strerror (errno)));
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static void
+gst_sunaudiosrc_close (GstSunAudioSrc * sunaudiosrc)
+{
+ close (sunaudiosrc->fd);
+}
+
+static GstElementStateReturn
+gst_sunaudiosrc_change_state (GstElement * element)
+{
+ GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIOSRC (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
+ //if (!gst_sunaudiosrc_open (sunaudiosrc)) {
+ //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:
+ gst_sunaudiosrc_close (sunaudiosrc);
+ break;
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state)
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+
+ return GST_STATE_SUCCESS;
+
+}
+
+static gboolean
+gst_sunaudiosrc_negotiate (GstPad * pad)
+{
+ GstSunAudioSrc *sunaudiosrc;
+ GstCaps *allowed;
+
+ sunaudiosrc = GST_SUNAUDIOSRC (gst_pad_get_parent (pad));
+
+ allowed = gst_pad_get_allowed_caps (pad);
+
+ if (gst_pad_try_set_caps (sunaudiosrc->srcpad,
+ gst_caps_new_simple ("audio/x-raw-int",
+ "width", G_TYPE_INT, sunaudiosrc->width,
+ "rate", G_TYPE_INT, sunaudiosrc->rate,
+ "channels", G_TYPE_INT, sunaudiosrc->channels, NULL)) <= 0) {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static GstData *
+gst_sunaudiosrc_get (GstPad * pad)
+{
+ GstBuffer *buf;
+ glong readbytes;
+ glong readsamples;
+ GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIOSRC (gst_pad_get_parent (pad));
+
+ buf = gst_buffer_new_and_alloc (sunaudiosrc->buffer_size);
+
+ if (!GST_PAD_CAPS (pad)) {
+ /* nothing was negotiated, we can decide on a format */
+ if (!gst_sunaudiosrc_negotiate (pad)) {
+ gst_buffer_unref (buf);
+ GST_ELEMENT_ERROR (sunaudiosrc, CORE, NEGOTIATION, (NULL), (NULL));
+ return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT));
+ }
+ }
+
+ readbytes =
+ read (GST_SUNAUDIOELEMENT (sunaudiosrc)->fd, GST_BUFFER_DATA (buf),
+ sunaudiosrc->buffer_size);
+
+ if (readbytes < 0) {
+ gst_buffer_unref (buf);
+ GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, READ, (NULL), GST_ERROR_SYSTEM);
+ return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT));
+ }
+
+ if (readbytes == 0) {
+ gst_buffer_unref (buf);
+ gst_element_set_eos (GST_ELEMENT (sunaudiosrc));
+ return GST_DATA (gst_event_new (GST_EVENT_INTERRUPT));
+ }
+
+ readsamples = readbytes * sunaudiosrc->rate / 1; /* Pending bps */
+
+ GST_BUFFER_SIZE (buf) = readbytes;
+ GST_BUFFER_OFFSET (buf) = sunaudiosrc->curoffset;
+ GST_BUFFER_OFFSET_END (buf) = sunaudiosrc->curoffset + readsamples;
+ GST_BUFFER_DURATION (buf) = readsamples * GST_SECOND / sunaudiosrc->rate;
+
+ GST_BUFFER_TIMESTAMP (buf) = GST_CLOCK_TIME_NONE;
+
+ sunaudiosrc->curoffset += readsamples;
+
+ return GST_DATA (buf);
+}
+
+static GstCaps *
+gst_sunaudiosrc_getcaps (GstPad * pad)
+{
+ GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIOSRC (gst_pad_get_parent (pad));
+ GstCaps *caps;
+
+ caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
+ GST_DEBUG ("getcaps called on %" GST_PTR_FORMAT ", returning %"
+ GST_PTR_FORMAT, pad, caps);
+
+ return caps;
+}
+
+static GstPadLinkReturn
+gst_sunaudiosrc_pad_link (GstPad * pad, const GstCaps * caps)
+{
+ GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIOSRC (gst_pad_get_parent (pad));
+ GstPadLinkReturn ret;
+ GstStructure *structure;
+
+ structure = gst_caps_get_structure (caps, 0);
+
+ gst_structure_get_int (structure, "rate", &sunaudiosrc->rate);
+ gst_structure_get_int (structure, "width", &sunaudiosrc->width);
+ gst_structure_get_int (structure, "channels", &sunaudiosrc->channels);
+
+ if (gst_sunaudiosrc_setparams (sunaudiosrc)) {
+ ret = GST_PAD_LINK_OK;
+ } else {
+ ret = GST_PAD_LINK_REFUSED;
+ }
+ GST_DEBUG ("pad_link called on %" GST_PTR_FORMAT " with caps %"
+ GST_PTR_FORMAT ", returning %d", pad, caps, ret);
+
+ return ret;
+}
+
+static gboolean
+gst_sunaudiosrc_setparams (GstSunAudioSrc * sunaudiosrc)
+{
+ audio_info_t ainfo;
+ int ret;
+
+ AUDIO_INITINFO (&ainfo);
+
+ ainfo.record.sample_rate = sunaudiosrc->rate;
+ ainfo.record.channels = sunaudiosrc->channels;
+ ainfo.record.precision = sunaudiosrc->width;
+ ainfo.record.encoding = AUDIO_ENCODING_LINEAR;
+ ainfo.record.port = AUDIO_MICROPHONE;
+ ainfo.record.buffer_size = sunaudiosrc->buffer_size;
+ //ainfo.output_muted = 0;
+
+ ret = ioctl (GST_SUNAUDIOELEMENT (sunaudiosrc)->fd, AUDIO_SETINFO, &ainfo);
+ if (ret == -1) {
+ GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, SETTINGS, (NULL), ("%s",
+ strerror (errno)));
+ return FALSE;
+ }
+
+ return TRUE;
+}
projects / platform / upstream / gstreamer.git / commitdiff