mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-15 22:01:27 +00:00
96 lines
3.2 KiB
C
96 lines
3.2 KiB
C
/* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wim.taymans@chello.be>
|
|
*
|
|
* gstformat.h: Header for GstFormat types used in queries and
|
|
* seeking.
|
|
*
|
|
* 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_FORMAT_H__
|
|
#define __GST_FORMAT_H__
|
|
|
|
#include <glib.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef enum {
|
|
GST_FORMAT_UNDEFINED = 0, /* must be first in list */
|
|
GST_FORMAT_DEFAULT = 1, /* samples for audio, frames/fields for video */
|
|
GST_FORMAT_BYTES = 2,
|
|
GST_FORMAT_TIME = 3,
|
|
GST_FORMAT_BUFFERS = 4,
|
|
GST_FORMAT_PERCENT = 5
|
|
} GstFormat;
|
|
|
|
/* a percentage is always relative to 1000000 */
|
|
#define GST_FORMAT_PERCENT_MAX G_GINT64_CONSTANT (1000000)
|
|
#define GST_FORMAT_PERCENT_SCALE G_GINT64_CONSTANT (10000)
|
|
|
|
typedef struct _GstFormatDefinition GstFormatDefinition;
|
|
|
|
struct _GstFormatDefinition
|
|
{
|
|
GstFormat value;
|
|
gchar *nick;
|
|
gchar *description;
|
|
};
|
|
|
|
#ifdef G_HAVE_ISO_VARARGS
|
|
#define GST_FORMATS_FUNCTION(type, functionname, ...) \
|
|
static const GstFormat* \
|
|
functionname (type object) \
|
|
{ \
|
|
static const GstFormat formats[] = { \
|
|
__VA_ARGS__, \
|
|
0 \
|
|
}; \
|
|
return formats; \
|
|
}
|
|
#elif defined(G_HAVE_GNUC_VARARGS)
|
|
#define GST_FORMATS_FUNCTION(type, functionname, a...) \
|
|
static const GstFormat* \
|
|
functionname (type object) \
|
|
{ \
|
|
static const GstFormat formats[] = { \
|
|
a, \
|
|
0 \
|
|
}; \
|
|
return formats; \
|
|
}
|
|
#endif
|
|
|
|
void _gst_format_initialize (void);
|
|
|
|
/* register a new format */
|
|
GstFormat gst_format_register (const gchar *nick,
|
|
const gchar *description);
|
|
GstFormat gst_format_get_by_nick (const gchar *nick);
|
|
|
|
/* check if a format is in an array of formats */
|
|
gboolean gst_formats_contains (const GstFormat *formats, GstFormat format);
|
|
|
|
/* query for format details */
|
|
G_CONST_RETURN GstFormatDefinition*
|
|
gst_format_get_details (GstFormat format);
|
|
G_CONST_RETURN GList*
|
|
gst_format_get_definitions (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_FORMAT_H__ */
|