gstreamer/gst/gstdatetime.h
Mathieu Duponchelle d7e2861398 docs: standardize GstControlSource, GstDateTime documentation
* Don't repeat what annotations are stating with respect to ownership
  transfer, nullability

* Misc cleanup / typo fixes / addition of links

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/759>
2021-02-16 17:05:16 +00:00

167 lines
5.3 KiB
C

/* GStreamer
* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
*
* 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_DATE_TIME_H__
#define __GST_DATE_TIME_H__
#include <gst/gstconfig.h>
#include <time.h>
#include <glib.h>
#include <glib-object.h>
G_BEGIN_DECLS
/**
* GstDateTime:
*
* Opaque, immutable, refcounted struct that stores date, time and timezone
* information. It currently supports ranges from `0001-01-01` to
* `9999-12-31` in the Gregorian proleptic calendar.
*
* Use the accessor functions to get the stored values.
*/
typedef struct _GstDateTime GstDateTime;
GST_API GType _gst_date_time_type;
/**
* GST_TYPE_DATE_TIME:
*
* a boxed #GValue type for #GstDateTime that represents a date and time.
*
* Returns: the #GType of GstDateTime
*/
#define GST_TYPE_DATE_TIME (_gst_date_time_type)
GST_API
GType gst_date_time_get_type (void);
/* query which fields are set */
GST_API
gboolean gst_date_time_has_year (const GstDateTime * datetime);
GST_API
gboolean gst_date_time_has_month (const GstDateTime * datetime);
GST_API
gboolean gst_date_time_has_day (const GstDateTime * datetime);
GST_API
gboolean gst_date_time_has_time (const GstDateTime * datetime);
GST_API
gboolean gst_date_time_has_second (const GstDateTime * datetime);
/* field getters */
GST_API
gint gst_date_time_get_year (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_month (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_day (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_hour (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_minute (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_second (const GstDateTime * datetime);
GST_API
gint gst_date_time_get_microsecond (const GstDateTime * datetime);
GST_API
gfloat gst_date_time_get_time_zone_offset (const GstDateTime * datetime);
/* constructors */
GST_API
GstDateTime * gst_date_time_new_from_unix_epoch_local_time (gint64 secs) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_from_unix_epoch_utc (gint64 secs) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_from_unix_epoch_local_time_usecs (gint64 usecs) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_from_unix_epoch_utc_usecs (gint64 usecs) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_local_time (gint year,
gint month,
gint day,
gint hour,
gint minute,
gdouble seconds) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_y (gint year) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_ym (gint year,
gint month) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_ymd (gint year,
gint month,
gint day) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new (gfloat tzoffset,
gint year, gint month,
gint day, gint hour,
gint minute,
gdouble seconds) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_now_local_time (void) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_now_utc (void) G_GNUC_MALLOC;
GST_API
gchar * gst_date_time_to_iso8601_string (GstDateTime * datetime) G_GNUC_MALLOC;
GST_API
GstDateTime * gst_date_time_new_from_iso8601_string (const gchar * string) G_GNUC_MALLOC;
GST_API
GDateTime * gst_date_time_to_g_date_time (GstDateTime * datetime);
GST_API
GstDateTime * gst_date_time_new_from_g_date_time (GDateTime * dt);
/* refcounting */
GST_API
GstDateTime * gst_date_time_ref (GstDateTime * datetime);
GST_API
void gst_date_time_unref (GstDateTime * datetime);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstDateTime, gst_date_time_unref)
G_END_DECLS
#endif /* __GST_DATE_TIME_H__ */