sys/sunaudio/: Add a SunAudio source plugin.

Original commit message from CVS:
Patch by: Brian Cameron <brian dot cameron at sun dot com>
* sys/sunaudio/Makefile.am:
* sys/sunaudio/gstsunaudio.c: (plugin_init):
* sys/sunaudio/gstsunaudiomixerctrl.c:
(gst_sunaudiomixer_ctrl_build_list), (gst_sunaudiomixer_ctrl_new),
(gst_sunaudiomixer_ctrl_list_tracks),
(gst_sunaudiomixer_ctrl_get_volume),
(gst_sunaudiomixer_ctrl_set_volume),
(gst_sunaudiomixer_ctrl_set_mute),
(gst_sunaudiomixer_ctrl_set_record):
* sys/sunaudio/gstsunaudiomixerctrl.h:
* sys/sunaudio/gstsunaudiomixertrack.c:
(gst_sunaudiomixer_track_init), (gst_sunaudiomixer_track_new):
* sys/sunaudio/gstsunaudiomixertrack.h:
* sys/sunaudio/gstsunaudiosrc.c: (gst_sunaudiosrc_dispose),
(gst_sunaudiosrc_base_init), (gst_sunaudiosrc_class_init),
(gst_sunaudiosrc_init), (gst_sunaudiosrc_set_property),
(gst_sunaudiosrc_get_property), (gst_sunaudiosrc_getcaps),
(gst_sunaudiosrc_open), (gst_sunaudiosrc_close),
(gst_sunaudiosrc_prepare), (gst_sunaudiosrc_unprepare),
(gst_sunaudiosrc_read), (gst_sunaudiosrc_delay),
(gst_sunaudiosrc_reset):
* sys/sunaudio/gstsunaudiosrc.h:
Add a SunAudio source plugin.
Support stereo and right/left channel gain in the mixer plugin.
Support the RECORD flag so that you can switch between line-input and
microphone in gnome-volume-control.
Code cleanups like using an enumerator for track number instead of an
integer. Fixes #344923.

1 files changed, 400 insertions, 0 deletions

diff --git a/sys/sunaudio/gstsunaudiosrc.c b/sys/sunaudio/gstsunaudiosrc.c
new file mode 100644
index 00000000..b014a704
--- /dev/null
+++ b/sys/sunaudio/gstsunaudiosrc.c
@@ -0,0 +1,400 @@
+/* GStreamer
+ * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
+ *               2000,2005 Wim Taymans <wim@fluendo.com>
+ *
+ * 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.
+ */
+
+/**
+ * SECTION:element-sunaudiosrc
+ *
+ * <refsect2>
+ * <para>
+ * sunaudiosrc is an audio source designed to work with the Sun Audio
+ * interface available in Solaris.
+ * </para>
+ * <title>Example launch line</title>
+ * <para>
+ * <programlisting>
+ * 
+ * gst-launch sunaudiosrc ! filesink location=outfile 
+ * </programlisting>
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stropts.h>
+
+#include "gstsunaudiosrc.h"
+
+static GstElementDetails plugin_details =
+GST_ELEMENT_DETAILS ("Sun Audio Source",
+    "Source/Audio",
+    "Audio source for Sun Audio devices",
+    "Brian Cameron <brian.cameron@sun.com>");
+
+static void gst_sunaudiosrc_base_init (gpointer g_class);
+static void gst_sunaudiosrc_class_init (GstSunAudioSrcClass * klass);
+static void gst_sunaudiosrc_init (GstSunAudioSrc * sunaudiosrc,
+    GstSunAudioSrcClass * g_class);
+static void gst_sunaudiosrc_dispose (GObject * object);
+
+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 GstCaps *gst_sunaudiosrc_getcaps (GstBaseSrc * bsrc);
+
+static gboolean gst_sunaudiosrc_open (GstAudioSrc * asrc);
+static gboolean gst_sunaudiosrc_close (GstAudioSrc * asrc);
+static gboolean gst_sunaudiosrc_prepare (GstAudioSrc * asrc,
+    GstRingBufferSpec * spec);
+static gboolean gst_sunaudiosrc_unprepare (GstAudioSrc * asrc);
+static guint gst_sunaudiosrc_read (GstAudioSrc * asrc, gpointer data,
+    guint length);
+static guint gst_sunaudiosrc_delay (GstAudioSrc * asrc);
+static void gst_sunaudiosrc_reset (GstAudioSrc * asrc);
+
+#define DEFAULT_DEVICE          "/dev/audio"
+#define DEFAULT_DEVICE_NAME     ""
+
+enum
+{
+  PROP_0,
+  PROP_DEVICE,
+  PROP_DEVICE_NAME,
+};
+
+GST_BOILERPLATE_WITH_INTERFACE (GstSunAudioSrc, gst_sunaudiosrc,
+    GstAudioSrc, GST_TYPE_AUDIO_SRC, GstMixer, GST_TYPE_MIXER, gst_sunaudiosrc)
+
+    GST_IMPLEMENT_SUNAUDIO_MIXER_CTRL_METHODS (GstSunAudioSrc, gst_sunaudiosrc)
+
+     static GstStaticPadTemplate gst_sunaudiosrc_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, "
+        /* [5510,48000] seems to be a Solaris limit */
+        "rate = (int) [ 5510, 48000 ], " "channels = (int) [ 1, 2 ]")
+    );
+
+     static void gst_sunaudiosrc_dispose (GObject * object)
+{
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_sunaudiosrc_base_init (gpointer g_class)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_add_pad_template (element_class,
+      gst_static_pad_template_get (&gst_sunaudiosrc_factory));
+  gst_element_class_set_details (element_class, &plugin_details);
+}
+
+static void
+gst_sunaudiosrc_class_init (GstSunAudioSrcClass * klass)
+{
+  GObjectClass *gobject_class;
+  GstElementClass *gstelement_class;
+  GstBaseSrcClass *gstbasesrc_class;
+  GstBaseAudioSrcClass *gstbaseaudiosrc_class;
+  GstAudioSrcClass *gstaudiosrc_class;
+
+  gobject_class = (GObjectClass *) klass;
+  gstelement_class = (GstElementClass *) klass;
+  gstbasesrc_class = (GstBaseSrcClass *) klass;
+  gstbaseaudiosrc_class = (GstBaseAudioSrcClass *) klass;
+  gstaudiosrc_class = (GstAudioSrcClass *) klass;
+
+  gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_dispose);
+  gobject_class->get_property =
+      GST_DEBUG_FUNCPTR (gst_sunaudiosrc_get_property);
+  gobject_class->set_property =
+      GST_DEBUG_FUNCPTR (gst_sunaudiosrc_set_property);
+
+  gstbasesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_getcaps);
+
+  gstaudiosrc_class->open = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_open);
+  gstaudiosrc_class->prepare = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_prepare);
+  gstaudiosrc_class->unprepare = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_unprepare);
+  gstaudiosrc_class->close = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_close);
+  gstaudiosrc_class->read = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_read);
+  gstaudiosrc_class->delay = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_delay);
+  gstaudiosrc_class->reset = GST_DEBUG_FUNCPTR (gst_sunaudiosrc_reset);
+
+  g_object_class_install_property (gobject_class, PROP_DEVICE,
+      g_param_spec_string ("device", "Device",
+          "SunAudio device (usually /dev/audio)", DEFAULT_DEVICE,
+          G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
+      g_param_spec_string ("device-name", "Device name",
+          "Human-readable name of the sound device", DEFAULT_DEVICE_NAME,
+          G_PARAM_READABLE));
+}
+
+static void
+gst_sunaudiosrc_init (GstSunAudioSrc * sunaudiosrc,
+    GstSunAudioSrcClass * g_class)
+{
+  const char *audiodev;
+
+  GST_DEBUG_OBJECT (sunaudiosrc, "initializing sunaudiosrc");
+
+  sunaudiosrc->fd = -1;
+
+  audiodev = g_getenv ("AUDIODEV");
+  if (audiodev == NULL)
+    audiodev = DEFAULT_DEVICE;
+  sunaudiosrc->device = g_strdup (audiodev);
+
+  sunaudiosrc->device_name = g_strdup (DEFAULT_DEVICE_NAME);
+}
+
+static void
+gst_sunaudiosrc_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstSunAudioSrc *sunaudiosrc;
+
+  sunaudiosrc = GST_SUNAUDIO_SRC (object);
+
+  switch (prop_id) {
+    case PROP_DEVICE:
+      if (sunaudiosrc->device)
+        g_free (sunaudiosrc->device);
+      sunaudiosrc->device = g_value_dup_string (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;
+
+  sunaudiosrc = GST_SUNAUDIO_SRC (object);
+
+  switch (prop_id) {
+    case PROP_DEVICE:
+      g_value_set_string (value, sunaudiosrc->device);
+      break;
+    case PROP_DEVICE_NAME:
+      g_value_set_string (value, sunaudiosrc->device_name);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static GstCaps *
+gst_sunaudiosrc_getcaps (GstBaseSrc * bsrc)
+{
+  GstPadTemplate *pad_template;
+  GstCaps *caps = NULL;
+  GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIO_SRC (bsrc);
+
+  GST_DEBUG_OBJECT (sunaudiosrc, "getcaps called");
+
+  pad_template = gst_static_pad_template_get (&gst_sunaudiosrc_factory);
+  caps = gst_caps_copy (gst_pad_template_get_caps (pad_template));
+
+  gst_object_unref (pad_template);
+
+  return caps;
+}
+
+static gboolean
+gst_sunaudiosrc_open (GstAudioSrc * asrc)
+{
+  GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIO_SRC (asrc);
+  int fd, ret;
+
+  fd = open (sunaudiosrc->device, O_RDWR);
+
+  if (fd == -1) {
+    GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, OPEN_READ, (NULL),
+        ("can't open connection to Sun Audio device %s", sunaudiosrc->device));
+
+    return FALSE;
+  }
+
+  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_DEBUG_OBJECT (sunaudiosrc, "name %s", sunaudiosrc->dev.name);
+  GST_DEBUG_OBJECT (sunaudiosrc, "version %s", sunaudiosrc->dev.version);
+  GST_DEBUG_OBJECT (sunaudiosrc, "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;
+  }
+
+  GST_DEBUG_OBJECT (sunaudiosrc, "monitor_gain %d",
+      sunaudiosrc->info.monitor_gain);
+  GST_DEBUG_OBJECT (sunaudiosrc, "output_muted %d",
+      sunaudiosrc->info.output_muted);
+  GST_DEBUG_OBJECT (sunaudiosrc, "hw_features %08x",
+      sunaudiosrc->info.hw_features);
+  GST_DEBUG_OBJECT (sunaudiosrc, "sw_features %08x",
+      sunaudiosrc->info.sw_features);
+  GST_DEBUG_OBJECT (sunaudiosrc, "sw_features_enabled %08x",
+      sunaudiosrc->info.sw_features_enabled);
+
+  if (!sunaudiosrc->mixer) {
+    const char *audiodev;
+
+    audiodev = g_getenv ("AUDIODEV");
+    if (audiodev == NULL) {
+      sunaudiosrc->mixer = gst_sunaudiomixer_ctrl_new ("/dev/audioctl");
+    } else {
+      gchar *device = g_strdup_printf ("/dev/%sctl", audiodev);
+
+      sunaudiosrc->mixer = gst_sunaudiomixer_ctrl_new (device);
+      g_free (device);
+    }
+    sunaudiosrc->device_name = g_strdup (sunaudiosrc->mixer->device);
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_sunaudiosrc_close (GstAudioSrc * asrc)
+{
+  GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIO_SRC (asrc);
+
+  close (sunaudiosrc->fd);
+  sunaudiosrc->fd = -1;
+
+  if (sunaudiosrc->mixer) {
+    gst_sunaudiomixer_ctrl_free (sunaudiosrc->mixer);
+    sunaudiosrc->mixer = NULL;
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_sunaudiosrc_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec)
+{
+  GstSunAudioSrc *sunaudiosrc = GST_SUNAUDIO_SRC (asrc);
+  audio_info_t ainfo;
+  int ret;
+  int ctrl_fd = -1;
+  int ports;
+
+  ret = ioctl (sunaudiosrc->fd, AUDIO_GETINFO, &ainfo);
+  if (ret == -1) {
+    GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, SETTINGS, (NULL), ("%s",
+            strerror (errno)));
+    return FALSE;
+  }
+
+  if (spec->width != 16)
+    return FALSE;
+
+  AUDIO_INITINFO (&ainfo);
+
+  ainfo.record.sample_rate = spec->rate;
+  ainfo.record.precision = spec->width;
+  ainfo.record.channels = spec->channels;
+  ainfo.record.encoding = AUDIO_ENCODING_LINEAR;
+  ainfo.record.buffer_size = spec->buffer_time;
+
+  GstSunAudioMixerCtrl *mixer = sunaudiosrc->mixer;
+  struct audio_info audioinfo;
+
+  if (ioctl (mixer->mixer_fd, AUDIO_GETINFO, &audioinfo) < 0) {
+    g_warning ("Error getting audio device volume");
+  }
+  ainfo.record.port = audioinfo.record.port;
+  ainfo.record.gain = audioinfo.record.gain;
+  ainfo.record.balance = audioinfo.record.balance;
+
+  spec->segsize = 128;
+  spec->segtotal = spec->buffer_time / 128;
+
+  spec->silence_sample[0] = 0;
+  spec->silence_sample[1] = 0;
+  spec->silence_sample[2] = 0;
+  spec->silence_sample[3] = 0;
+
+  ret = ioctl (sunaudiosrc->fd, AUDIO_SETINFO, &ainfo);
+  if (ret == -1) {
+    GST_ELEMENT_ERROR (sunaudiosrc, RESOURCE, SETTINGS, (NULL), ("%s",
+            strerror (errno)));
+    return FALSE;
+  }
+
+
+  ioctl (sunaudiosrc->fd, I_FLUSH, FLUSHR);
+
+  return TRUE;
+}
+
+static gboolean
+gst_sunaudiosrc_unprepare (GstAudioSrc * asrc)
+{
+  return TRUE;
+}
+
+static guint
+gst_sunaudiosrc_read (GstAudioSrc * asrc, gpointer data, guint length)
+{
+  return read (GST_SUNAUDIO_SRC (asrc)->fd, data, length);
+}
+
+static guint
+gst_sunaudiosrc_delay (GstAudioSrc * asrc)
+{
+  return 0;
+}
+
+static void
+gst_sunaudiosrc_reset (GstAudioSrc * asrc)
+{
+  return;
+}