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/* GStreamer Audio CD Source Base Class
* Copyright (C) 2005 Tim-Philipp Müller <tim centricular net>
*
* 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.
*/
#ifndef __GST_AUDIO_AUDIO_H__
#include <gst/audio/audio.h>
#endif
#ifndef __GST_AUDIO_CD_SRC_H__
#define __GST_AUDIO_CD_SRC_H__
#include <gst/gst.h>
#include <gst/base/gstpushsrc.h>
G_BEGIN_DECLS
#define GST_TYPE_AUDIO_CD_SRC (gst_audio_cd_src_get_type())
#define GST_AUDIO_CD_SRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_AUDIO_CD_SRC, GstAudioCdSrc))
#define GST_AUDIO_CD_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_AUDIO_CD_SRC, GstAudioCdSrcClass))
#define GST_IS_AUDIO_CD_SRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_AUDIO_CD_SRC))
#define GST_IS_AUDIO_CD_SRC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_AUDIO_CD_SRC))
#define GST_AUDIO_CD_SRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_AUDIO_CD_SRC, GstAudioCdSrcClass))
typedef struct _GstAudioCdSrc GstAudioCdSrc;
typedef struct _GstAudioCdSrcClass GstAudioCdSrcClass;
typedef struct _GstAudioCdSrcTrack GstAudioCdSrcTrack;
typedef struct _GstAudioCdSrcPrivate GstAudioCdSrcPrivate;
/**
* GstAudioCdSrcMode:
* @GST_AUDIO_CD_SRC_MODE_NORMAL : each single track is a stream
* @GST_AUDIO_CD_SRC_MODE_CONTINUOUS : the entire disc is a single stream
*
* Mode in which the CD audio source operates. Influences timestamping,
* EOS handling and seeking.
*/
typedef enum {
GST_AUDIO_CD_SRC_MODE_NORMAL, /* stream = one track */
GST_AUDIO_CD_SRC_MODE_CONTINUOUS /* stream = whole disc */
} GstAudioCdSrcMode;
/**
* GstAudioCdSrcTrack:
* @is_audio: Whether this is an audio track
* @num: Track number in TOC (usually starts from 1, but not always)
* @start: The first sector of this track (LBA)
* @end: The last sector of this track (LBA)
* @tags: Track-specific tags (e.g. from cd-text information), or NULL
*
* CD track abstraction to communicate TOC entries to the base class.
*
* This structure is only for use by sub-classed in connection with
* gst_audio_cd_src_add_track().
*
* Applications will be informed of the available tracks via a TOC message
* on the pipeline's #GstBus instead.
*/
/* FIXME 2.0: remove this struct and pass values directly to _add_track() */
struct _GstAudioCdSrcTrack {
gboolean is_audio; /* TRUE if this is an audio track */
guint num; /* real track number (usually starts from 1) */
guint start; /* first sector of track (LBA, not LSN!) */
guint end; /* last sector of track (LBA, not LSN!) */
GstTagList *tags; /* NULL or tags for track (e.g. from cd-text) */
/*< private >*/
guint _gst_reserved1[GST_PADDING/2];
gpointer _gst_reserved2[GST_PADDING/2];
};
struct _GstAudioCdSrc {
GstPushSrc pushsrc;
/*< protected >*/ /* for use by sub-classes only */
GstTagList *tags; /* tags that apply to all tracks */
/*< private >*/
GstAudioCdSrcPrivate *priv;
/*< private >*/
guint _gst_reserved1[GST_PADDING/2];
gpointer _gst_reserved2[GST_PADDING/2];
};
/**
* GstAudioCdSrcClass:
* @pushsrc_class: the parent class
* @open: opening the device
* @close: closing the device
* @read_sector: reading a sector
* @get_default_device: getting the default device
* @probe_devices: probing possible devices
*
* Audio CD source base class.
*/
struct _GstAudioCdSrcClass {
GstPushSrcClass pushsrc_class;
/* open/close the CD device */
gboolean (*open) (GstAudioCdSrc *src, const gchar *device);
void (*close) (GstAudioCdSrc *src);
/* read one sector (LBA) */
GstBuffer * (*read_sector) (GstAudioCdSrc *src, gint sector);
#if 0
/* return default device or NULL (optional) */
gchar * (*get_default_device) (GstAudioCdSrc *src);
/* return NULL-terminated string array of CD devices, or NULL (optional) */
/* FIXME 0.11: reconsider for new probing/device discovery API, remove if in doubt */
gchar ** (*probe_devices) (GstAudioCdSrc *src);
#endif
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE];
};
GST_AUDIO_API
GType gst_audio_cd_src_get_type (void);
GST_AUDIO_API
gboolean gst_audio_cd_src_add_track (GstAudioCdSrc * src,
GstAudioCdSrcTrack * track);
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioCdSrc, gst_object_unref)
#endif
G_END_DECLS
#endif /* __GST_AUDIO_CD_SRC_H__ */
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