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authorWim Taymans <wim.taymans@gmail.com>2002-12-30 18:01:31 +0000
committerWim Taymans <wim.taymans@gmail.com>2002-12-30 18:01:31 +0000
commit1e530c57a5edd294db7b52b1780e2aa5ed26a4e3 (patch)
tree192ba308a2bd6be3733ef6899907a606e5f5ccea /ext
parent2deab46c699196a902a076bbd969d26a15d9068a (diff)
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First attempt at a cd player plugins that uses libcdaudio.
Original commit message from CVS: First attempt at a cd player plugins that uses libcdaudio.
Diffstat (limited to 'ext')
-rw-r--r--ext/cdaudio/Makefile.am8
-rw-r--r--ext/cdaudio/gstcdaudio.c519
2 files changed, 527 insertions, 0 deletions
diff --git a/ext/cdaudio/Makefile.am b/ext/cdaudio/Makefile.am
new file mode 100644
index 00000000..bbd758d7
--- /dev/null
+++ b/ext/cdaudio/Makefile.am
@@ -0,0 +1,8 @@
+plugindir = $(libdir)/gst
+
+plugin_LTLIBRARIES = libgstcdaudio.la
+
+libgstcdaudio_la_SOURCES = gstcdaudio.c
+libgstcdaudio_la_CFLAGS = $(GST_CFLAGS)
+libgstcdaudio_la_LIBADD =
+libgstcdaudio_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -lcdaudio
diff --git a/ext/cdaudio/gstcdaudio.c b/ext/cdaudio/gstcdaudio.c
new file mode 100644
index 00000000..e6133b20
--- /dev/null
+++ b/ext/cdaudio/gstcdaudio.c
@@ -0,0 +1,519 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * 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 <cdaudio.h>
+
+#include <gst/gst.h>
+
+#define GST_TYPE_CDAUDIO (gst_cdaudio_get_type())
+#define GST_CDAUDIO(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CDAUDIO,GstCDAudio))
+#define GST_CDAUDIO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CDAUDIO,GstCDAudioClass))
+#define GST_IS_CDAUDIO(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CDAUDIO))
+#define GST_IS_CDAUDIO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CDAUDIO))
+
+typedef struct _GstCDAudio GstCDAudio;
+typedef struct _GstCDAudioClass GstCDAudioClass;
+
+struct _GstCDAudio {
+ GstBin element;
+
+ /* properties */
+ gchar *device;
+
+ gint cd_desc;
+ gulong discid;
+
+ gboolean was_playing;
+
+ struct disc_info info;
+ struct disc_volume volume;
+
+ GTimer *timer;
+};
+
+struct _GstCDAudioClass {
+ GstBinClass parent_class;
+
+ void (*close_tray) (GstElement *element);
+ /* signal callbacks */
+ void (*track_change) (GstElement *element, guint track);
+};
+
+/* props */
+enum
+{
+ ARG_0,
+ ARG_DEVICE,
+ ARG_DISCID,
+ ARG_VOLUME_FR,
+ ARG_VOLUME_FL,
+ ARG_VOLUME_BR,
+ ARG_VOLUME_BL,
+};
+
+/* signals */
+enum
+{
+ TRACK_CHANGE,
+ LAST_SIGNAL,
+};
+
+static void gst_cdaudio_class_init (GstCDAudioClass *klass);
+static void gst_cdaudio_init (GstCDAudio *cdaudio);
+static void gst_cdaudio_dispose (GObject *object);
+
+static void gst_cdaudio_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *spec);
+static void gst_cdaudio_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *spec);
+static GstElementStateReturn
+ gst_cdaudio_change_state (GstElement * element);
+
+static const GstEventMask* gst_cdaudio_get_event_masks (GstElement *element);
+static gboolean gst_cdaudio_send_event (GstElement *element, GstEvent *event);
+static const GstFormat* gst_cdaudio_get_formats (GstElement *element);
+static gboolean gst_cdaudio_convert (GstElement *element,
+ GstFormat src_format, gint64 src_value,
+ GstFormat *dest_format, gint64 *dest_value);
+static const GstQueryType* gst_cdaudio_get_query_types (GstElement *element);
+static gboolean gst_cdaudio_query (GstElement *element, GstQueryType type,
+ GstFormat *format, gint64 *value);
+
+static GstFormat track_format;
+static GstFormat sector_format;
+
+static GstElementClass *parent_class;
+static guint gst_cdaudio_signals[LAST_SIGNAL] = { 0 };
+
+static GstElementDetails gst_cdaudio_details = {
+ "CD Player",
+ "Generic/Bin",
+ "Play CD audio through the CD Drive",
+ VERSION,
+ "Wim Taymans <wim.taymans@chello.be>",
+ "(C) 2002",
+};
+
+
+GType
+gst_cdaudio_get_type (void)
+{
+ static GType gst_cdaudio_type = 0;
+
+ if (!gst_cdaudio_type) {
+ static const GTypeInfo gst_cdaudio_info = {
+ sizeof (GstCDAudioClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) gst_cdaudio_class_init,
+ NULL,
+ NULL,
+ sizeof (GstCDAudio),
+ 0,
+ (GInstanceInitFunc) gst_cdaudio_init,
+ NULL
+ };
+ gst_cdaudio_type = g_type_register_static (GST_TYPE_BIN, "GstCDAudio", &gst_cdaudio_info, 0);
+
+ track_format = gst_format_register ("track", "CD track");
+ sector_format = gst_format_register ("sector", "CD sector");
+ }
+
+ return gst_cdaudio_type;
+}
+
+static void
+gst_cdaudio_class_init (GstCDAudioClass * klass)
+{
+ GObjectClass *gobject_klass;
+ GstElementClass *gstelement_klass;
+ GstBinClass *gstbin_klass;
+
+ gobject_klass = (GObjectClass *) klass;
+ gstelement_klass = (GstElementClass *) klass;
+ gstbin_klass = (GstBinClass *) klass;
+
+ parent_class = g_type_class_ref (gst_bin_get_type ());
+
+ gobject_klass->set_property = gst_cdaudio_set_property;
+ gobject_klass->get_property = gst_cdaudio_get_property;
+
+ g_object_class_install_property (gobject_klass, ARG_DEVICE,
+ g_param_spec_string ("device", "Device", "CDROM device",
+ NULL, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_DISCID,
+ g_param_spec_ulong ("discid", "Disc ID", "CDDB Disc ID",
+ 0, G_MAXULONG, 0, G_PARAM_READABLE));
+ g_object_class_install_property (gobject_klass, ARG_VOLUME_FL,
+ g_param_spec_int ("volume_fl", "Volume fl", "Front left volume",
+ 0, 255, 255, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_VOLUME_FR,
+ g_param_spec_int ("volume_fr", "Volume fr", "Front right volume",
+ 0, 255, 255, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_VOLUME_BL,
+ g_param_spec_int ("volume_bl", "Volume bl", "Back left volume",
+ 0, 255, 255, G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_klass, ARG_VOLUME_BR,
+ g_param_spec_int ("volume_br", "Volume br", "Back right volume",
+ 0, 255, 255, G_PARAM_READWRITE));
+
+ gst_cdaudio_signals[TRACK_CHANGE] =
+ g_signal_new ("track_change", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GstCDAudioClass, track_change), NULL, NULL,
+ gst_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT);
+
+ gobject_klass->dispose = GST_DEBUG_FUNCPTR (gst_cdaudio_dispose);
+
+ gstelement_klass->change_state = GST_DEBUG_FUNCPTR (gst_cdaudio_change_state);
+ gstelement_klass->get_event_masks = GST_DEBUG_FUNCPTR (gst_cdaudio_get_event_masks);
+ gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_cdaudio_send_event);
+ gstelement_klass->get_formats = GST_DEBUG_FUNCPTR (gst_cdaudio_get_formats);
+ gstelement_klass->convert = GST_DEBUG_FUNCPTR (gst_cdaudio_convert);
+ gstelement_klass->get_query_types = GST_DEBUG_FUNCPTR (gst_cdaudio_get_query_types);
+ gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_cdaudio_query);
+}
+
+static void
+gst_cdaudio_init (GstCDAudio * cdaudio)
+{
+ cdaudio->device = g_strdup ("/dev/cdrom");
+ cdaudio->was_playing = FALSE;
+ cdaudio->timer = g_timer_new ();
+
+ GST_FLAG_SET (cdaudio, GST_BIN_FLAG_MANAGER);
+ GST_FLAG_SET (cdaudio, GST_BIN_SELF_SCHEDULABLE);
+}
+
+static void
+gst_cdaudio_dispose (GObject * object)
+{
+ GstCDAudio *cdaudio;
+
+ cdaudio = GST_CDAUDIO (object);
+ g_timer_destroy (cdaudio->timer);
+ g_free (cdaudio->device);
+
+ if (G_OBJECT_CLASS (parent_class)->dispose) {
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+ }
+}
+
+static void
+gst_cdaudio_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * spec)
+{
+ GstCDAudio *cdaudio;
+
+ g_return_if_fail (GST_IS_CDAUDIO (object));
+
+ cdaudio = GST_CDAUDIO (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ break;
+ case ARG_VOLUME_FR:
+ break;
+ case ARG_VOLUME_FL:
+ break;
+ case ARG_VOLUME_BR:
+ break;
+ case ARG_VOLUME_BL:
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+gst_cdaudio_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * spec)
+{
+ GstCDAudio *cdaudio;
+
+ g_return_if_fail (GST_IS_CDAUDIO (object));
+
+ cdaudio = GST_CDAUDIO (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ g_value_set_string (value, cdaudio->device);
+ break;
+ case ARG_DISCID:
+ g_value_set_ulong (value, cdaudio->discid);
+ break;
+ case ARG_VOLUME_FR:
+ g_value_set_int (value, cdaudio->volume.vol_front.right);
+ break;
+ case ARG_VOLUME_FL:
+ g_value_set_int (value, cdaudio->volume.vol_front.left);
+ break;
+ case ARG_VOLUME_BR:
+ g_value_set_int (value, cdaudio->volume.vol_back.right);
+ break;
+ case ARG_VOLUME_BL:
+ g_value_set_int (value, cdaudio->volume.vol_back.left);
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+print_track_info (GstCDAudio *cdaudio)
+{
+ gint i;
+
+ for (i = 0; i < cdaudio->info.disc_total_tracks; i++) {
+ g_print ("%d %d:%02d\n", i,
+ cdaudio->info.disc_track[i].track_length.minutes,
+ cdaudio->info.disc_track[i].track_length.seconds);
+ }
+}
+
+static GstElementStateReturn
+gst_cdaudio_change_state (GstElement * element)
+{
+ GstCDAudio *cdaudio;
+
+ cdaudio = GST_CDAUDIO (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_NULL_TO_READY:
+ break;
+ case GST_STATE_READY_TO_PAUSED:
+ cdaudio->cd_desc = cd_init_device(cdaudio->device);
+ if (cdaudio->cd_desc < 0)
+ return GST_STATE_FAILURE;
+
+ /* close tray */
+ if (cd_close (cdaudio->cd_desc) < 0)
+ return GST_STATE_FAILURE;
+
+ if (cd_stat (cdaudio->cd_desc, &cdaudio->info) < 0)
+ return GST_STATE_FAILURE;
+
+ print_track_info (cdaudio);
+
+ cdaudio->discid = cddb_discid (cdaudio->cd_desc);
+ g_object_notify (G_OBJECT (cdaudio), "discid");
+
+ cdaudio->was_playing = FALSE;
+ break;
+ case GST_STATE_PAUSED_TO_PLAYING:
+ {
+ gint res;
+
+ if (cdaudio->was_playing)
+ res = cd_resume (cdaudio->cd_desc);
+ else
+ res = cd_play (cdaudio->cd_desc, 1);
+
+ if (res < 0)
+ return GST_STATE_FAILURE;
+
+ cdaudio->was_playing = TRUE;
+ g_timer_start (cdaudio->timer);
+ break;
+ }
+ case GST_STATE_PLAYING_TO_PAUSED:
+ if (cd_pause (cdaudio->cd_desc) < 0)
+ return GST_STATE_FAILURE;
+ g_timer_stop (cdaudio->timer);
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ if (cd_stop (cdaudio->cd_desc) < 0)
+ return GST_STATE_FAILURE;
+ if (cd_finish (cdaudio->cd_desc) < 0)
+ return GST_STATE_FAILURE;
+ break;
+ case GST_STATE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+
+ if (GST_ELEMENT_CLASS (parent_class)->change_state) {
+ return GST_ELEMENT_CLASS (parent_class)->change_state (element);
+ }
+
+ return GST_STATE_SUCCESS;
+}
+
+GST_ELEMENT_EVENT_MASK_FUNCTION (gst_cdaudio_get_event_masks,
+ { GST_EVENT_SEEK, GST_SEEK_FLAG_FLUSH },
+ { GST_EVENT_SEEK_SEGMENT, GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_SEGMENT_LOOP }
+)
+
+gboolean
+gst_cdaudio_send_event (GstElement *element, GstEvent *event)
+{
+ GstCDAudio *cdaudio;
+ gboolean res = TRUE;
+
+ cdaudio = GST_CDAUDIO (element);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ switch (GST_EVENT_SEEK_FORMAT (event)) {
+ case GST_FORMAT_TIME:
+ {
+ struct disc_timeval time;
+
+ time.minutes = GST_EVENT_SEEK_OFFSET (event) / (60 * GST_SECOND);
+ time.seconds = (GST_EVENT_SEEK_OFFSET (event) / GST_SECOND) % 60;
+
+ cd_advance (cdaudio->cd_desc, time);
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ gst_event_unref (event);
+ return res;
+}
+
+const GstFormat*
+gst_cdaudio_get_formats (GstElement *element)
+{
+ static GstFormat formats[] = {
+ GST_FORMAT_TIME,
+ GST_FORMAT_BYTES,
+ GST_FORMAT_UNITS,
+ 0, /* fillted below */
+ 0, /* fillted below */
+ 0,
+ };
+
+ formats[3] = track_format;
+ formats[4] = sector_format;
+
+ return formats;
+}
+
+gboolean
+gst_cdaudio_convert (GstElement *element,
+ GstFormat src_format, gint64 src_value,
+ GstFormat *dest_format, gint64 *dest_value)
+{
+ return FALSE;
+}
+
+const GstQueryType*
+gst_cdaudio_get_query_types (GstElement *element)
+{
+ static const GstQueryType query_types[] = {
+ GST_QUERY_TOTAL,
+ GST_QUERY_POSITION,
+ GST_QUERY_START,
+ GST_QUERY_SEGMENT_END,
+ 0
+ };
+ return query_types;
+}
+
+gboolean
+gst_cdaudio_query (GstElement *element, GstQueryType type,
+ GstFormat *format, gint64 *value)
+{
+ GstCDAudio *cdaudio;
+ gboolean res = TRUE;
+ gulong micros;
+ gdouble seconds;
+
+ cdaudio = GST_CDAUDIO (element);
+
+ /* take new snapshot every 100000 miliseconds */
+ seconds = g_timer_elapsed (cdaudio->timer, &micros);
+ if (micros > 100000) {
+ cd_stat (cdaudio->cd_desc, &cdaudio->info);
+ g_timer_start (cdaudio->timer);
+ }
+
+ switch (type) {
+ case GST_QUERY_TOTAL:
+ switch (*format) {
+ case GST_FORMAT_DEFAULT:
+ *format = GST_FORMAT_TIME;
+ case GST_FORMAT_TIME:
+ *value = (cdaudio->info.disc_length.minutes * 60 +
+ cdaudio->info.disc_length.seconds) * GST_SECOND;
+ break;
+ default:
+ {
+ if (*format == track_format) {
+ *value = cdaudio->info.disc_total_tracks;
+ }
+ else {
+ res = FALSE;
+ }
+ break;
+ }
+ }
+ break;
+ case GST_QUERY_POSITION:
+ switch (*format) {
+ case GST_FORMAT_DEFAULT:
+ *format = GST_FORMAT_TIME;
+ case GST_FORMAT_TIME:
+ *value = (cdaudio->info.disc_time.minutes * 60 +
+ cdaudio->info.disc_time.seconds) * GST_SECOND;
+ break;
+ default:
+ {
+ if (*format == track_format) {
+ *value = cdaudio->info.disc_current_track;
+ }
+ else {
+ res = FALSE;
+ }
+ break;
+ }
+ }
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ return res;
+}
+
+static gboolean
+plugin_init (GModule * module, GstPlugin * plugin)
+{
+ GstElementFactory *factory;
+
+ factory = gst_element_factory_new ("cdaudio", GST_TYPE_CDAUDIO, &gst_cdaudio_details);
+ g_return_val_if_fail (factory != NULL, FALSE);
+ gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
+
+ gst_plugin_set_longname (plugin, "CD Player");
+
+ return TRUE;
+}
+
+GstPluginDesc plugin_desc = {
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "cdaudio",
+ plugin_init
+};