mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-08 10:31:05 +00:00
f68667a5e5
Original commit message from CVS: * sys/oss/gstosselement.c: (gst_osselement_reset), (gst_osselement_parse_caps): * sys/oss/gstosselement.h: * sys/oss/gstosssrc.c: (gst_osssrc_get): Fix offset on osssrc.
130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/* 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__ */
|