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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wim.taymans@chello.be>
*
* gstosselement.h:
*
* 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 __GST_OSS_ELEMENT_H__
#define __GST_OSS_ELEMENT_H__
#include <gst/gst.h>
#include <sys/types.h>
/* debugging category */
GST_DEBUG_CATEGORY_EXTERN (oss_debug);
#define GST_CAT_DEFAULT oss_debug
G_BEGIN_DECLS
#define GST_TYPE_OSSELEMENT \
(gst_osselement_get_type())
#define GST_OSSELEMENT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSSELEMENT,GstOssElement))
#define GST_OSSELEMENT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSSELEMENT,GstOssElementClass))
#define GST_IS_OSSELEMENT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSSELEMENT))
#define GST_IS_OSSELEMENT_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSSELEMENT))
#define GST_OSSELEMENT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_OSSELEMENT, GstOssElementClass))
typedef struct _GstOssElement GstOssElement;
typedef struct _GstOssElementClass GstOssElementClass;
typedef enum {
GST_OSSELEMENT_READ,
GST_OSSELEMENT_WRITE,
} GstOssOpenMode;
typedef struct _GstOssDeviceCombination {
gchar *dsp, *mixer;
dev_t dev;
} GstOssDeviceCombination;
struct _GstOssElement
{
/* yes, we're a gstelement too */
GstElement parent;
gchar *device,
*mixer_dev;
/* device state */
int fd;
int caps; /* the capabilities */
gint format;
gint fragment;
guint64 fragment_time;
gint fragment_size;
GstOssOpenMode mode;
GstCaps *probed_caps;
/* stats bytes per *second* */
guint bps;
/* sample width in bytes */
guint sample_width;
/* parameters */
gint law;
gint endianness;
gboolean sign;
gint width;
gint depth;
gint channels;
gint rate;
/* mixer stuff */
GList *tracklist;
guint32 stereomask,
recdevs,
recmask,
mixcaps;
gint mixer_fd;
gchar *device_name;
};
struct _GstOssElementClass {
GstElementClass klass;
GList *device_combinations;
};
GType gst_osselement_get_type (void);
/* some useful functions */
gboolean gst_osselement_parse_caps (GstOssElement *oss,
const GstCaps *caps);
gboolean gst_osselement_merge_fixed_caps (GstOssElement *oss,
GstCaps *caps);
gboolean gst_osselement_sync_parms (GstOssElement *oss);
void gst_osselement_reset (GstOssElement *oss);
gboolean gst_osselement_convert (GstOssElement *oss,
GstFormat src_format,
gint64 src_value,
GstFormat *dest_format,
gint64 *dest_value);
void gst_osselement_probe_caps (GstOssElement *oss);
G_END_DECLS
#endif /* __GST_OSS_ELEMENT_H__ */
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