*
* 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.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
#ifndef __GST_CLOCK_H__
#define __GST_CLOCK_H__
+#include <gst/gstconfig.h>
+#include <glib.h>
+
G_BEGIN_DECLS
/* --- standard type macros --- */
typedef gpointer GstClockID;
/**
- * GST_CLOCK_TIME_NONE:
+ * GST_CLOCK_TIME_NONE: (value 18446744073709551615) (type GstClockTime)
*
* Constant to define an undefined clock time.
- *
- * Value: 18446744073709551615
- * Type: GstClockTime
*/
#define GST_CLOCK_TIME_NONE ((GstClockTime) -1)
/**
*/
#define GST_CLOCK_TIME_IS_VALID(time) (((GstClockTime)(time)) != GST_CLOCK_TIME_NONE)
+/**
+ * GST_CLOCK_STIME_NONE: (value -9223372036854775808) (type GstClockTimeDiff)
+ *
+ * Constant to define an undefined clock time.
+ */
+#define GST_CLOCK_STIME_NONE G_MININT64
+/**
+ * GST_CLOCK_STIME_IS_VALID:
+ * @time: signed clock time to validate
+ *
+ * Tests if a given #GstClockTimeDiff of #gint64 represents a valid defined time.
+ *
+ * Since: 1.6
+ */
+#define GST_CLOCK_STIME_IS_VALID(time) (((GstClockTimeDiff)(time)) != GST_CLOCK_STIME_NONE)
+
/* FIXME: still need to explicitly force types on the defines below */
/**
- * GST_SECOND:
+ * GST_SECOND: (value 1000000000) (type GstClockTime)
*
* Constant that defines one GStreamer second.
- *
- * Value: 1000000000
- * Type: GstClockTime
*/
#define GST_SECOND (G_USEC_PER_SEC * G_GINT64_CONSTANT (1000))
/**
- * GST_MSECOND:
+ * GST_MSECOND: (value 1000000) (type GstClockTime)
*
* Constant that defines one GStreamer millisecond.
- *
- * Value: 1000000
- * Type: GstClockTime
*/
#define GST_MSECOND (GST_SECOND / G_GINT64_CONSTANT (1000))
/**
- * GST_USECOND:
+ * GST_USECOND: (value 1000) (type GstClockTime)
*
* Constant that defines one GStreamer microsecond.
- *
- * Value: 1000
- * Type: GstClockTime
*/
#define GST_USECOND (GST_SECOND / G_GINT64_CONSTANT (1000000))
/**
- * GST_NSECOND:
+ * GST_NSECOND: (value 1) (type GstClockTime)
*
* Constant that defines one GStreamer nanosecond
- *
- * Value: 1
- * Type: GstClockTime
*/
#define GST_NSECOND (GST_SECOND / G_GINT64_CONSTANT (1000000000))
*
* Convert a #GstClockTime to a #GTimeVal
*
- * <note>on 32-bit systems, a timeval has a range of only 2^32 - 1 seconds,
- * which is about 68 years. Expect trouble if you want to schedule stuff
- * in your pipeline for 2038.</note>
+ * > on 32-bit systems, a timeval has a range of only 2^32 - 1 seconds,
+ * > which is about 68 years. Expect trouble if you want to schedule stuff
+ * > in your pipeline for 2038.
*/
#define GST_TIME_TO_TIMEVAL(t,tv) \
G_STMT_START { \
* the matching arguments.
*
* Example:
- * |[
+ * |[<!-- language="C" -->
* printf("%" GST_TIME_FORMAT "\n", GST_TIME_ARGS(ts));
* ]|
*/
(guint) ((((GstClockTime)(t)) / GST_SECOND) % 60) : 99, \
GST_CLOCK_TIME_IS_VALID (t) ? \
(guint) (((GstClockTime)(t)) % GST_SECOND) : 999999999
+/**
+ * GST_STIME_FORMAT:
+ *
+ * A string that can be used in printf-like format strings to display a signed
+ * #GstClockTimeDiff or #gint64 value in h:m:s format. Use GST_TIME_ARGS() to
+ * construct the matching arguments.
+ *
+ * Example:
+ * |[
+ * printf("%" GST_STIME_FORMAT "\n", GST_STIME_ARGS(ts));
+ * ]|
+ *
+ * Since: 1.6
+ */
+#define GST_STIME_FORMAT "c%" GST_TIME_FORMAT
+/**
+ * GST_STIME_ARGS:
+ * @t: a #GstClockTimeDiff or #gint64
+ *
+ * Format @t for the #GST_STIME_FORMAT format string. Note: @t will be
+ * evaluated more than once.
+ *
+ * Since: 1.6
+ */
+#define GST_STIME_ARGS(t) \
+ ((t) == GST_CLOCK_STIME_NONE || (t) >= 0) ? '+' : '-', \
+ GST_CLOCK_STIME_IS_VALID (t) ? \
+ (guint) (((GstClockTime)(ABS(t))) / (GST_SECOND * 60 * 60)) : 99, \
+ GST_CLOCK_STIME_IS_VALID (t) ? \
+ (guint) ((((GstClockTime)(ABS(t))) / (GST_SECOND * 60)) % 60) : 99, \
+ GST_CLOCK_STIME_IS_VALID (t) ? \
+ (guint) ((((GstClockTime)(ABS(t))) / GST_SECOND) % 60) : 99, \
+ GST_CLOCK_STIME_IS_VALID (t) ? \
+ (guint) (((GstClockTime)(ABS(t))) % GST_SECOND) : 999999999
typedef struct _GstClockEntry GstClockEntry;
typedef struct _GstClock GstClock;
* @GST_CLOCK_FLAG_CAN_DO_PERIODIC_ASYNC: clock can do async periodic timeout callbacks
* @GST_CLOCK_FLAG_CAN_SET_RESOLUTION: clock's resolution can be changed
* @GST_CLOCK_FLAG_CAN_SET_MASTER: clock can be slaved to a master clock
+ * @GST_CLOCK_FLAG_NEEDS_STARTUP_SYNC: clock needs to be synced before it can be used
+ * (Since 1.6)
* @GST_CLOCK_FLAG_LAST: subclasses can add additional flags starting from this flag
*
* The capabilities of this clock
GST_CLOCK_FLAG_CAN_DO_PERIODIC_ASYNC = (GST_OBJECT_FLAG_LAST << 3),
GST_CLOCK_FLAG_CAN_SET_RESOLUTION = (GST_OBJECT_FLAG_LAST << 4),
GST_CLOCK_FLAG_CAN_SET_MASTER = (GST_OBJECT_FLAG_LAST << 5),
+ GST_CLOCK_FLAG_NEEDS_STARTUP_SYNC = (GST_OBJECT_FLAG_LAST << 6),
/* padding */
GST_CLOCK_FLAG_LAST = (GST_OBJECT_FLAG_LAST << 8)
} GstClockFlags;
gboolean gst_clock_add_observation (GstClock *clock, GstClockTime slave,
GstClockTime master, gdouble *r_squared);
+gboolean gst_clock_add_observation_unapplied (GstClock *clock, GstClockTime slave,
+ GstClockTime master, gdouble *r_squared,
+ GstClockTime *internal,
+ GstClockTime *external,
+ GstClockTime *rate_num,
+ GstClockTime *rate_denom);
/* getting and adjusting internal/external time */
GstClockTime gst_clock_get_internal_time (GstClock *clock);
GstClockTime gst_clock_adjust_unlocked (GstClock *clock, GstClockTime internal);
+GstClockTime gst_clock_adjust_with_calibration (GstClock *clock,
+ GstClockTime internal_target,
+ GstClockTime cinternal,
+ GstClockTime cexternal,
+ GstClockTime cnum,
+ GstClockTime cdenom);
+GstClockTime gst_clock_unadjust_with_calibration (GstClock *clock,
+ GstClockTime external_target,
+ GstClockTime cinternal,
+ GstClockTime cexternal,
+ GstClockTime cnum,
+ GstClockTime cdenom);
GstClockTime gst_clock_unadjust_unlocked (GstClock * clock, GstClockTime external);
+/* waiting for, signalling and checking for synchronization */
+gboolean gst_clock_wait_for_sync (GstClock * clock, GstClockTime timeout);
+gboolean gst_clock_is_synced (GstClock * clock);
+
+/* to be used by subclasses only */
+void gst_clock_set_synced (GstClock * clock, gboolean synced);
/* creating IDs that can be used to get notifications */
GstClockID gst_clock_new_single_shot_id (GstClock *clock,
GstClockTime start_time,
GstClockTime interval);
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstClock, gst_object_unref)
+#endif
+
G_END_DECLS
#endif /* __GST_CLOCK_H__ */
projects / platform / upstream / gstreamer.git / blobdiff