Added the cdrom plugin by ishamael.

Original commit message from CVS:
Added the cdrom plugin by ishamael.

5 files changed, 590 insertions, 0 deletions

diff --git a/sys/cdrom/Makefile.am b/sys/cdrom/Makefile.am
new file mode 100644
index 00000000..a43c1dcb
--- /dev/null
+++ b/sys/cdrom/Makefile.am
@@ -0,0 +1,10 @@
+plugindir = $(libdir)/gst
+
+plugin_LTLIBRARIES = libgstcdplayer.la
+
+libgstcdplayer_la_SOURCES = gstcdplayer.c gstcdplayer_ioctl.c
+libgstcdplayer_la_CFLAGS = $(GST_CFLAGS)
+libgstcdplayer_la_LIBADD =
+libgstcdplayer_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+noinst_HEADERS = gstcdplayer.h gstcdplayer_ioctl.h
diff --git a/sys/cdrom/gstcdplayer.c b/sys/cdrom/gstcdplayer.c
new file mode 100644
index 00000000..ddfc823f
--- /dev/null
+++ b/sys/cdrom/gstcdplayer.c
@@ -0,0 +1,293 @@
+/* gstcdplay
+ * Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.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 "gstcdplayer.h"
+#include "gstcdplayer_ioctl.h"
+
+/* props */
+enum {
+	ARG_0,
+	ARG_DEVICE,
+	ARG_NUM_TRACKS,
+	ARG_START_TRACK,
+};
+
+/* signals */
+enum {
+	LAST_SIGNAL,
+};
+
+static void cdplayer_class_init(CDPlayerClass *klass);
+static void cdplayer_init(CDPlayer *cdp);
+static void cdplayer_set_property(GObject *object,guint prop_id,const GValue *value,GParamSpec *spec);
+static void cdplayer_get_property(GObject *object,guint prop_id,GValue *value,GParamSpec *spec);
+static void cdplayer_dispose(GObject *object);
+static GstElementStateReturn cdplayer_change_state(GstElement *element);
+
+static gboolean plugin_init(GModule *module,GstPlugin *plugin);
+
+
+
+static GstElementClass *parent_class;
+/* static guint cdplayer_signals[LAST_SIGNAL] = {0}; */
+
+
+static GstElementDetails cdplayer_details = {
+	"CD Player",
+	"Generic/Bin",
+	"Play CD audio through the CD Drive",
+	VERSION,
+	"Charles Schmidt <cbschmid@uiuc.edu>",
+	"(C) 2002",
+};
+
+
+
+GType cdplayer_get_type(void)
+{
+	static GType cdplayer_type = 0;
+
+	if (!cdplayer_type) {
+		static const GTypeInfo cdplayer_info = {
+			sizeof(CDPlayerClass),
+			NULL,
+			NULL,
+			(GClassInitFunc)cdplayer_class_init,
+			NULL,
+			NULL,
+			sizeof(CDPlayer),
+			0,
+			(GInstanceInitFunc)cdplayer_init,
+			NULL
+		};
+
+		cdplayer_type = g_type_register_static(GST_TYPE_BIN,"CDPlayer",&cdplayer_info,0);
+	}
+
+	return cdplayer_type;
+}
+
+static void cdplayer_class_init(CDPlayerClass *klass)
+{
+	GObjectClass *gobject_klass;
+	GstElementClass *gstelement_klass;
+
+	gobject_klass = (GObjectClass *)klass;
+	gstelement_klass = (GstElementClass *)klass;
+
+	parent_class = g_type_class_ref(gst_bin_get_type());
+
+	gobject_klass->dispose = GST_DEBUG_FUNCPTR(cdplayer_dispose);
+
+	gstelement_klass->change_state = GST_DEBUG_FUNCPTR(cdplayer_change_state);
+
+	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_NUM_TRACKS,g_param_spec_int("num_tracks","num_tracks","Number of Tracks",G_MININT,G_MAXINT,0,G_PARAM_READABLE));
+	g_object_class_install_property(gobject_klass,ARG_START_TRACK,g_param_spec_int("start_track","start_track","Track to start playback on",1,CDPLAYER_MAX_TRACKS-1,1,G_PARAM_READABLE));
+
+	gobject_klass->set_property = cdplayer_set_property;
+	gobject_klass->get_property = cdplayer_get_property;
+
+	return;
+}
+
+static void cdplayer_init(CDPlayer *cdp)
+{
+	GstScheduler *scheduler;
+
+	cdp->device = g_strdup("/dev/cdrom");
+	cdp->num_tracks = -1;
+	cdp->start_track = 1;
+
+	cdp->paused = FALSE;
+
+	GST_FLAG_SET(cdp,GST_BIN_SELF_SCHEDULABLE);
+
+	scheduler = gst_scheduler_factory_make(NULL,GST_ELEMENT(cdp));
+	g_return_if_fail(scheduler != NULL);
+
+	gst_scheduler_setup(scheduler);
+
+	return;
+}
+
+static void cdplayer_set_property(GObject *object,guint prop_id,const GValue *value,GParamSpec *spec)
+{
+	CDPlayer *cdp;
+
+	g_return_if_fail(GST_IS_CDPLAYER(object));
+
+	cdp = CDPLAYER(object);
+
+	switch (prop_id) {
+		case ARG_DEVICE:
+// FIXME prolly should uhh.. stop it or something
+			if (cdp->device) {
+				g_free(cdp->device);
+			} 
+			
+			cdp->device = g_strdup(g_value_get_string(value));
+			break;
+		case ARG_START_TRACK:
+// FIXME prolly should uhh.. restart play, i guess... or something whatever
+			cdp->start_track = g_value_get_int(value);
+			break;
+		default:
+			break;
+	}
+
+	return;
+}
+
+
+static void cdplayer_get_property(GObject *object,guint prop_id,GValue *value,GParamSpec *spec)
+{
+	CDPlayer *cdp;
+
+	g_return_if_fail(GST_IS_CDPLAYER(object));
+
+	cdp = CDPLAYER(object);
+
+	switch (prop_id) {
+		case ARG_DEVICE:
+			g_value_set_string(value,cdp->device);
+			break;
+		case ARG_NUM_TRACKS:
+			g_value_set_int(value,cdp->num_tracks);
+			break;
+		case ARG_START_TRACK:
+			g_value_set_int(value,cdp->start_track);
+			break;
+		default:
+			break;
+	}
+
+	return;
+}
+
+static void cdplayer_dispose(GObject *object)
+{
+	CDPlayer *cdp;
+
+	g_return_if_fail(GST_IS_CDPLAYER(object));
+
+	cdp = CDPLAYER(object);
+
+	G_OBJECT_CLASS(parent_class)->dispose(object);
+
+	g_free(cdp->device);
+
+	if (GST_ELEMENT_SCHED(cdp)) {
+		gst_scheduler_reset(GST_ELEMENT_SCHED(cdp));
+		gst_object_unref(GST_OBJECT(GST_ELEMENT_SCHED(cdp)));
+		GST_ELEMENT_SCHED(cdp) = NULL;
+	}
+
+	return;
+}
+
+static GstElementStateReturn cdplayer_change_state(GstElement *element)
+{
+	CDPlayer *cdp;
+	GstElementState state = GST_STATE(element);
+	GstElementState pending = GST_STATE_PENDING(element);
+
+	g_return_val_if_fail(GST_IS_CDPLAYER(element),GST_STATE_FAILURE);
+
+	cdp = CDPLAYER(element);
+
+	switch (pending) {
+		case GST_STATE_READY:
+			if (state != GST_STATE_PAUSED) {
+				if (cd_init(CDPLAYER_CD(cdp),cdp->device) == FALSE) {
+					return GST_STATE_FAILURE;
+				}
+				cdp->num_tracks = cdp->cd.num_tracks;
+			}
+			break;
+		case GST_STATE_PAUSED:
+			/* ready->paused is not useful */
+			if (state != GST_STATE_READY) {
+				if (cd_pause(CDPLAYER_CD(cdp)) == FALSE) {
+					return GST_STATE_FAILURE;
+				}
+
+				cdp->paused = TRUE;
+			}
+
+			break;
+		case GST_STATE_PLAYING:
+			if (cdp->paused == TRUE) {
+				if (cd_resume(CDPLAYER_CD(cdp)) == FALSE) {
+					return GST_STATE_FAILURE;
+				}
+
+				cdp->paused = FALSE;
+			} else {
+				if (cd_start(CDPLAYER_CD(cdp),cdp->start_track) == FALSE) {
+					return GST_STATE_FAILURE;
+				}
+			}
+
+			break;
+		case GST_STATE_NULL:
+			/* stop & close fd */
+			if (cd_stop(CDPLAYER_CD(cdp)) == FALSE || cd_close(CDPLAYER_CD(cdp)) == FALSE) {
+				return GST_STATE_FAILURE;
+			}
+
+			break;
+		default:
+			break;
+	}
+
+	GST_STATE(element) = GST_STATE_PENDING(element);
+	GST_STATE_PENDING(element) = GST_STATE_VOID_PENDING;
+
+	if (GST_ELEMENT_CLASS(parent_class)->change_state) {
+		return GST_ELEMENT_CLASS(parent_class)->change_state(element);
+	}
+
+	return GST_STATE_SUCCESS;
+}
+
+
+static gboolean plugin_init(GModule *module,GstPlugin *plugin)
+{
+	GstElementFactory *factory;
+
+	factory = gst_element_factory_new("cdplayer",GST_TYPE_CDPLAYER,&cdplayer_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,
+    "cdplayer",
+    plugin_init
+};
+
+	
+
diff --git a/sys/cdrom/gstcdplayer.h b/sys/cdrom/gstcdplayer.h
new file mode 100644
index 00000000..5da5527d
--- /dev/null
+++ b/sys/cdrom/gstcdplayer.h
@@ -0,0 +1,64 @@
+/* gstcdplay
+ * Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.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.
+ */
+
+#ifndef __CDPLAYER_H__
+#define __CDPLAYER_H__
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <gst/gst.h>
+
+#include "gstcdplayer_ioctl.h"
+
+#define GST_TYPE_CDPLAYER 		(cdplayer_get_type())
+#define CDPLAYER(obj)			(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CDPLAYER,CDPlayer))
+#define CDPLAYER_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CDPLAYER,CDPlayerClass))
+#define GST_IS_CDPLAYER(obj)		(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CDPLAYER))
+#define GST_IS_CDPLAYER_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CDPLAYER))
+
+
+typedef struct _CDPlayer CDPlayer;
+typedef struct _CDPlayerClass CDPlayerClass;
+
+struct _CDPlayer {
+	GstBin element;
+	
+	/* properties */
+	gchar *device;
+	gint num_tracks;
+	guint start_track;
+
+	/* private */
+	struct cd cd;
+	gboolean paused;
+};
+
+struct _CDPlayerClass {
+	GstBinClass parent_class;
+
+	/* signal callbacks */
+};
+
+GType cdplayer_get_type(void);
+
+#endif	
+
diff --git a/sys/cdrom/gstcdplayer_ioctl.c b/sys/cdrom/gstcdplayer_ioctl.c
new file mode 100644
index 00000000..2da746a2
--- /dev/null
+++ b/sys/cdrom/gstcdplayer_ioctl.c
@@ -0,0 +1,165 @@
+/* gstcdplay
+ * Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.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 "gstcdplayer_ioctl.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include <linux/cdrom.h>
+
+
+gboolean cd_init(struct cd *cd,const gchar *device)
+{
+	struct cdrom_tochdr toc_header;
+	struct cdrom_tocentry toc_entry;
+	guint i;
+
+	cd->fd = open(device,O_RDONLY | O_NONBLOCK);
+
+	if (cd->fd == -1) {
+		return FALSE;
+	}
+
+	/* get the toc header information */
+	if (ioctl(cd->fd,CDROMREADTOCHDR,&toc_header) != 0) {
+		return FALSE;
+	}
+
+	/* read each entry in the toc header */
+	for (i = 1; i < toc_header.cdth_trk1; i++) {
+		toc_entry.cdte_format = CDROM_MSF;
+		toc_entry.cdte_track = i;
+
+		if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
+			return FALSE;
+		}
+
+		cd->tracks[i].minute = toc_entry.cdte_addr.msf.minute;
+		cd->tracks[i].second = toc_entry.cdte_addr.msf.second;
+		cd->tracks[i].frame = toc_entry.cdte_addr.msf.frame;
+		cd->tracks[i].data_track = (toc_entry.cdte_ctrl == CDROM_DATA_TRACK);
+	}
+
+	/* read the leadout */
+	toc_entry.cdte_track = CDROM_LEADOUT;
+	toc_entry.cdte_format = CDROM_MSF;
+	if (ioctl(cd->fd,CDROMREADTOCENTRY,&toc_entry) != 0) {
+		return FALSE;
+	}
+	cd->tracks[LEADOUT].minute = toc_entry.cdte_addr.msf.minute;
+	cd->tracks[LEADOUT].second = toc_entry.cdte_addr.msf.second;
+	cd->tracks[LEADOUT].frame = toc_entry.cdte_addr.msf.frame;
+
+	cd->num_tracks = toc_header.cdth_trk1;
+
+	return TRUE;
+}
+
+gboolean cd_start(struct cd *cd,guint start_track)
+{
+	struct cdrom_msf msf;
+
+	if (cd->fd == -1) {
+		return FALSE;
+	}
+
+	if (start_track <= 0) {
+		start_track = 1;
+	}
+
+	if (start_track > cd->num_tracks) {
+		start_track = cd->num_tracks;
+	}
+
+	msf.cdmsf_min0 = cd->tracks[start_track].minute;
+	msf.cdmsf_sec0 = cd->tracks[start_track].second;
+	msf.cdmsf_frame0 = cd->tracks[start_track].frame;
+
+	msf.cdmsf_min1 = cd->tracks[LEADOUT].minute;
+	msf.cdmsf_sec1 = cd->tracks[LEADOUT].second;
+	msf.cdmsf_frame1 = cd->tracks[LEADOUT].frame;
+
+	if (ioctl(cd->fd,CDROMPLAYMSF,&msf) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+gboolean cd_pause(struct cd *cd)
+{
+	if (cd->fd == -1) {
+		return FALSE;
+	}
+
+	if (ioctl(cd->fd,CDROMPAUSE,NULL) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+gboolean cd_resume(struct cd *cd)
+{
+	if (cd->fd == -1) {
+		return FALSE;
+	}
+
+	if (ioctl(cd->fd,CDROMRESUME,NULL) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+gboolean cd_stop(struct cd *cd)
+{
+	if (cd->fd == -1) {
+		return FALSE;
+	}
+
+	if (ioctl(cd->fd,CDROMSTOP,NULL) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+
+gboolean cd_close(struct cd *cd)
+{
+	if (cd->fd == -1) {
+		return TRUE;
+	}
+
+	if (close(cd->fd) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
diff --git a/sys/cdrom/gstcdplayer_ioctl.h b/sys/cdrom/gstcdplayer_ioctl.h
new file mode 100644
index 00000000..7d96925c
--- /dev/null
+++ b/sys/cdrom/gstcdplayer_ioctl.h
@@ -0,0 +1,58 @@
+/* gstcdplay
+ * Copyright (c) 2002 Charles Schmidt <cbschmid@uiuc.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.
+ */
+
+#ifndef __CDPLAYER_IOCTL_H__
+#define __CDPLAYER_IOCTL_H__
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+
+#define LEADOUT 0
+
+#define CDPLAYER_CD(cdp)  (&(cdp->cd))
+
+#define CDPLAYER_MAX_TRACKS 128
+
+struct cd_msf {
+	guint8 minute;
+	guint8 second;
+	guint8 frame;
+
+	gboolean data_track;
+};
+
+struct cd {
+	gint fd;
+	gint num_tracks;
+	struct cd_msf tracks[CDPLAYER_MAX_TRACKS];
+};
+
+gboolean cd_init(struct cd *cd,const gchar *device);
+gboolean cd_start(struct cd *cd,guint start_track);
+gboolean cd_pause(struct cd *cd);
+gboolean cd_resume(struct cd *cd);
+gboolean cd_stop(struct cd *cd);
+gboolean cd_close(struct cd *cd);
+
+#endif
+
+