blob: c23c8edf456d555a63d19807f1d6dc87b20965f8 [file] [log] [blame]
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* <2006> Wim Taymans <wim@fluendo.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <cdaudio.h>
#include <gst/gst.h>
GST_DEBUG_CATEGORY_STATIC (gst_cdaudio_debug);
#define GST_CAT_DEFAULT gst_cdaudio_debug
#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
{
GstElement parent;
/* properties */
gchar *device;
gchar *uri;
gint cd_desc;
gulong discid;
gboolean was_playing;
struct disc_info info;
struct disc_volume volume;
GTimer *timer;
};
struct _GstCDAudioClass
{
GstElementClass parent_class;
void (*close_tray) (GstElement * element);
/* signal callbacks */
void (*track_change) (GstElement * element, guint track);
};
#define DEFAULT_DEVICE "/dev/cdrom"
#define DEFAULT_VOLUME_FR 255
#define DEFAULT_VOLUME_FL 255
#define DEFAULT_VOLUME_BR 255
#define DEFAULT_VOLUME_BL 255
/* props */
enum
{
PROP_0,
PROP_DEVICE,
PROP_VOLUME_FR,
PROP_VOLUME_FL,
PROP_VOLUME_BR,
PROP_VOLUME_BL,
PROP_LAST
};
/* signals */
enum
{
TRACK_CHANGE,
LAST_SIGNAL
};
static void gst_cdaudio_finalize (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 GstStateChangeReturn gst_cdaudio_change_state (GstElement * element,
GstStateChange transition);
static const GstQueryType *gst_cdaudio_get_query_types (GstElement * element);
static gboolean gst_cdaudio_query (GstElement * element, GstQuery * query);
static gboolean gst_cdaudio_send_event (GstElement * element, GstEvent * event);
static void cdaudio_uri_handler_init (gpointer g_iface, gpointer iface_data);
static GstFormat track_format;
static GstFormat sector_format;
static GstElementClass *parent_class;
static guint gst_cdaudio_signals[LAST_SIGNAL] = { 0 };
static void
_do_init (GType cdaudio_type)
{
static const GInterfaceInfo urihandler_info = {
cdaudio_uri_handler_init,
NULL,
NULL,
};
g_type_add_interface_static (cdaudio_type, GST_TYPE_URI_HANDLER,
&urihandler_info);
}
GType gst_cdaudio_get_type (void);
GST_BOILERPLATE_FULL (GstCDAudio, gst_cdaudio, GstElement, GST_TYPE_ELEMENT,
_do_init);
static void
gst_cdaudio_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_static_metadata (element_class, "CD player",
"Generic/Bin",
"Play CD audio through the CD Drive", "Wim Taymans <wim@fluendo.com>");
/* Register the track and sector format */
track_format = gst_format_register ("track", "CD track");
sector_format = gst_format_register ("sector", "CD sector");
}
static void
gst_cdaudio_class_init (GstCDAudioClass * klass)
{
GObjectClass *gobject_klass;
GstElementClass *gstelement_klass;
gobject_klass = (GObjectClass *) klass;
gstelement_klass = (GstElementClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_klass->set_property = gst_cdaudio_set_property;
gobject_klass->get_property = gst_cdaudio_get_property;
g_object_class_install_property (gobject_klass, PROP_DEVICE,
g_param_spec_string ("device", "Device", "CDROM device",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VOLUME_FL,
g_param_spec_int ("volume-fl", "Volume fl", "Front left volume",
0, 255, 255, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VOLUME_FR,
g_param_spec_int ("volume-fr", "Volume fr", "Front right volume",
0, 255, 255, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VOLUME_BL,
g_param_spec_int ("volume-bl", "Volume bl", "Back left volume",
0, 255, 255, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_VOLUME_BR,
g_param_spec_int ("volume-br", "Volume br", "Back right volume",
0, 255, 255, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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->finalize = GST_DEBUG_FUNCPTR (gst_cdaudio_finalize);
gstelement_klass->change_state = GST_DEBUG_FUNCPTR (gst_cdaudio_change_state);
gstelement_klass->send_event = GST_DEBUG_FUNCPTR (gst_cdaudio_send_event);
gstelement_klass->get_query_types =
GST_DEBUG_FUNCPTR (gst_cdaudio_get_query_types);
gstelement_klass->query = GST_DEBUG_FUNCPTR (gst_cdaudio_query);
GST_DEBUG_CATEGORY_INIT (gst_cdaudio_debug, "cdaudio", 0, "CDAudio Element");
}
static void
gst_cdaudio_init (GstCDAudio * cdaudio, GstCDAudioClass * g_class)
{
cdaudio->device = g_strdup (DEFAULT_DEVICE);
cdaudio->volume.vol_front.right = DEFAULT_VOLUME_FR;
cdaudio->volume.vol_front.left = DEFAULT_VOLUME_FL;
cdaudio->volume.vol_back.right = DEFAULT_VOLUME_BR;
cdaudio->volume.vol_back.left = DEFAULT_VOLUME_BL;
cdaudio->was_playing = FALSE;
cdaudio->timer = g_timer_new ();
GST_OBJECT_FLAG_SET (cdaudio, GST_ELEMENT_IS_SINK);
}
static void
gst_cdaudio_finalize (GObject * object)
{
GstCDAudio *cdaudio = GST_CDAUDIO (object);
g_timer_destroy (cdaudio->timer);
g_free (cdaudio->device);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_cdaudio_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * spec)
{
GstCDAudio *cdaudio;
cdaudio = GST_CDAUDIO (object);
switch (prop_id) {
case PROP_DEVICE:
g_free (cdaudio->device);
cdaudio->device = g_value_dup_string (value);
break;
case PROP_VOLUME_FR:
cdaudio->volume.vol_front.right = g_value_get_int (value);
break;
case PROP_VOLUME_FL:
cdaudio->volume.vol_front.left = g_value_get_int (value);
break;
case PROP_VOLUME_BR:
cdaudio->volume.vol_back.right = g_value_get_int (value);
break;
case PROP_VOLUME_BL:
cdaudio->volume.vol_back.left = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_cdaudio_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * spec)
{
GstCDAudio *cdaudio;
cdaudio = GST_CDAUDIO (object);
switch (prop_id) {
case PROP_DEVICE:
g_value_set_string (value, cdaudio->device);
break;
case PROP_VOLUME_FR:
g_value_set_int (value, cdaudio->volume.vol_front.right);
break;
case PROP_VOLUME_FL:
g_value_set_int (value, cdaudio->volume.vol_front.left);
break;
case PROP_VOLUME_BR:
g_value_set_int (value, cdaudio->volume.vol_back.right);
break;
case PROP_VOLUME_BL:
g_value_set_int (value, cdaudio->volume.vol_back.left);
break;
default:
break;
}
}
static void
debug_track_info (GstCDAudio * cdaudio)
{
gint i;
for (i = 0; i < cdaudio->info.disc_total_tracks; i++) {
GST_DEBUG_OBJECT (cdaudio, "%d %d %d %d:%02d", i,
cdaudio->info.disc_track[i].track_length.frames,
cdaudio->info.disc_track[i].track_pos.frames,
cdaudio->info.disc_track[i].track_length.minutes,
cdaudio->info.disc_track[i].track_length.seconds);
}
}
static GstStateChangeReturn
gst_cdaudio_change_state (GstElement * element, GstStateChange transition)
{
GstCDAudio *cdaudio;
GstStateChangeReturn ret;
gint res;
cdaudio = GST_CDAUDIO (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
if ((res = cd_init_device (cdaudio->device)) < 0)
goto init_failed;
cdaudio->cd_desc = res;
/* close tray */
if ((res = cd_close (cdaudio->cd_desc)) < 0)
goto close_failed;
if ((res = cd_stat (cdaudio->cd_desc, &cdaudio->info)) < 0) {
/* we just give a warning here */
GST_ELEMENT_WARNING (cdaudio, LIBRARY, INIT,
("Could not retrieve CD track info."), (NULL));
} else {
debug_track_info (cdaudio);
cdaudio->discid = cddb_discid (cdaudio->cd_desc);
/* FIXME, post message with discid */
}
cdaudio->was_playing = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
{
if (cdaudio->was_playing)
res = cd_resume (cdaudio->cd_desc);
else
res = cd_play (cdaudio->cd_desc, 1);
if (res < 0)
goto play_failed;
cdaudio->was_playing = TRUE;
g_timer_start (cdaudio->timer);
break;
}
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
if ((res = cd_pause (cdaudio->cd_desc)) < 0)
goto pause_failed;
g_timer_stop (cdaudio->timer);
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
if ((res = cd_stop (cdaudio->cd_desc)) < 0)
goto stop_failed;
if ((res = cd_finish (cdaudio->cd_desc)) < 0)
goto finish_failed;
cdaudio->cd_desc = -1;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
/* ERRORS */
init_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not init CD device %s. (%d)", cdaudio->device, res), (NULL));
cdaudio->cd_desc = -1;
return GST_STATE_CHANGE_FAILURE;
}
close_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not close CD tray for device %s. (%d)", cdaudio->device, res),
(NULL));
return GST_STATE_CHANGE_FAILURE;
}
play_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not play CD device %s. (%d)", cdaudio->device, res), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
pause_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not pause CD device %s. (%d)", cdaudio->device, res), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
stop_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not stop CD device %s. (%d)", cdaudio->device, res), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
finish_failed:
{
GST_ELEMENT_ERROR (cdaudio, LIBRARY, INIT,
("Could not finish CD device %s. (%d)", cdaudio->device, res), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
}
static 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:
{
gdouble rate;
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
gint ret;
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
/* FIXME, implement more formats */
if (format != GST_FORMAT_TIME)
goto wrong_format;
if (rate != 1.0)
goto wrong_rate;
if (start_type != GST_SEEK_TYPE_SET)
goto unsupported;
ret = cd_play_pos (cdaudio->cd_desc, 1, start / GST_SECOND);
if (ret < 0)
goto seek_failed;
}
default:
res = FALSE;
break;
}
done:
gst_event_unref (event);
return res;
/* ERRORS */
wrong_format:
{
GST_DEBUG_OBJECT (cdaudio, "only seek in TIME is supported");
res = FALSE;
goto done;
}
wrong_rate:
{
GST_DEBUG_OBJECT (cdaudio, "only seek with 1.0 rate is supported");
res = FALSE;
goto done;
}
unsupported:
{
GST_DEBUG_OBJECT (cdaudio, "only seek SET is supported");
res = FALSE;
goto done;
}
seek_failed:
{
GST_DEBUG_OBJECT (cdaudio, "seek failed");
res = FALSE;
goto done;
}
}
static const GstQueryType *
gst_cdaudio_get_query_types (GstElement * element)
{
static const GstQueryType query_types[] = {
GST_QUERY_DURATION,
GST_QUERY_POSITION,
0
};
return query_types;
}
static gboolean
gst_cdaudio_query (GstElement * element, GstQuery * query)
{
GstCDAudio *cdaudio;
gboolean res = TRUE;
gulong micros;
gdouble seconds;
cdaudio = GST_CDAUDIO (element);
GST_LOG_OBJECT (element, "handling %s query",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
/* take new snapshot every 1000 miliseconds */
seconds = g_timer_elapsed (cdaudio->timer, &micros);
if (micros > 1000 || seconds > 1) {
cd_stat (cdaudio->cd_desc, &cdaudio->info);
g_timer_start (cdaudio->timer);
}
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat dest_format;
gint64 dest_val;
gst_query_parse_duration (query, &dest_format, NULL);
switch (dest_format) {
case GST_FORMAT_TIME:
dest_val = (cdaudio->info.disc_length.minutes * 60 +
cdaudio->info.disc_length.seconds) * GST_SECOND;
break;
default:
{
if (dest_format == track_format) {
dest_val = cdaudio->info.disc_total_tracks;
} else {
res = FALSE;
}
break;
}
}
if (res)
gst_query_set_duration (query, dest_format, dest_val);
break;
}
case GST_QUERY_POSITION:
{
GstFormat dest_format;
gint64 dest_val;
gst_query_parse_position (query, &dest_format, NULL);
switch (dest_format) {
case GST_FORMAT_TIME:
dest_val = (cdaudio->info.disc_time.minutes * 60 +
cdaudio->info.disc_time.seconds) * GST_SECOND;
break;
default:
{
if (dest_format == track_format) {
dest_val = cdaudio->info.disc_current_track;
} else {
res = FALSE;
}
break;
}
}
if (res)
gst_query_set_position (query, dest_format, dest_val);
break;
}
default:
res = FALSE;
break;
}
return res;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "cdaudio", GST_RANK_NONE,
GST_TYPE_CDAUDIO))
return FALSE;
return TRUE;
}
/*** GSTURIHANDLER INTERFACE *************************************************/
static guint
cdaudio_uri_get_type (void)
{
return GST_URI_SRC;
}
static gchar **
cdaudio_uri_get_protocols (void)
{
static gchar *protocols[] = { (char *) "cd", NULL };
return protocols;
}
static const gchar *
cdaudio_uri_get_uri (GstURIHandler * handler)
{
GstCDAudio *cdaudio = GST_CDAUDIO (handler);
return cdaudio->uri;
}
static gboolean
cdaudio_uri_set_uri (GstURIHandler * handler, const gchar * uri)
{
gchar *protocol, *location;
gboolean ret;
ret = TRUE;
//GstCDAudio *cdaudio = GST_CDAUDIO(handler);
protocol = gst_uri_get_protocol (uri);
if (strcmp (protocol, "cd") != 0)
goto wrong_protocol;
g_free (protocol);
location = gst_uri_get_location (uri);
/*
cdaudio->uri_track = strtol(location,NULL,10);
if (cdaudio->uri_track > 0) {
cdaudio->seek_request = cdaudio->uri_track;
}
*/
g_free (location);
return ret;
/* ERRORS */
wrong_protocol:
{
g_free (protocol);
return FALSE;
}
}
static void
cdaudio_uri_handler_init (gpointer g_iface, gpointer iface_data)
{
GstURIHandlerInterface *iface = (GstURIHandlerInterface *) g_iface;
iface->get_type = cdaudio_uri_get_type;
iface->get_protocols = cdaudio_uri_get_protocols;
iface->get_uri = cdaudio_uri_get_uri;
iface->set_uri = cdaudio_uri_set_uri;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
cdaudio,
"Play CD audio through the CD Drive",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)