X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gst%2Fgstclock.h;h=4d2df752ea2e4ceca36a97223ed77fc1e906340b;hb=ce4698487e2650ee9b365d6cf41a254483349bc0;hp=2bc9d80918de3abccaa2311fe868646417845cce;hpb=df6044f7ebdaf0c38217c95b7d9cc5340567d800;p=platform%2Fupstream%2Fgstreamer.git diff --git a/gst/gstclock.h b/gst/gstclock.h index 2bc9d80..4d2df75 100644 --- a/gst/gstclock.h +++ b/gst/gstclock.h @@ -17,35 +17,33 @@ * * 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 +#include +#include G_BEGIN_DECLS /* --- standard type macros --- */ -#define GST_TYPE_CLOCK (gst_clock_get_type ()) -#define GST_CLOCK(clock) (G_TYPE_CHECK_INSTANCE_CAST ((clock), GST_TYPE_CLOCK, GstClock)) -#define GST_IS_CLOCK(clock) (G_TYPE_CHECK_INSTANCE_TYPE ((clock), GST_TYPE_CLOCK)) -#define GST_CLOCK_CLASS(cclass) (G_TYPE_CHECK_CLASS_CAST ((cclass), GST_TYPE_CLOCK, GstClockClass)) -#define GST_IS_CLOCK_CLASS(cclass) (G_TYPE_CHECK_CLASS_TYPE ((cclass), GST_TYPE_CLOCK)) -#define GST_CLOCK_GET_CLASS(clock) (G_TYPE_INSTANCE_GET_CLASS ((clock), GST_TYPE_CLOCK, GstClockClass)) -#define GST_CLOCK_CAST(clock) ((GstClock*)(clock)) - -#define GST_CLOCK_SLAVE_LOCK(clock) g_mutex_lock (GST_CLOCK_CAST (clock)->slave_lock) -#define GST_CLOCK_SLAVE_UNLOCK(clock) g_mutex_unlock (GST_CLOCK_CAST (clock)->slave_lock) +#define GST_TYPE_CLOCK (gst_clock_get_type ()) +#define GST_CLOCK(clock) (G_TYPE_CHECK_INSTANCE_CAST ((clock), GST_TYPE_CLOCK, GstClock)) +#define GST_IS_CLOCK(clock) (G_TYPE_CHECK_INSTANCE_TYPE ((clock), GST_TYPE_CLOCK)) +#define GST_CLOCK_CLASS(cclass) (G_TYPE_CHECK_CLASS_CAST ((cclass), GST_TYPE_CLOCK, GstClockClass)) +#define GST_IS_CLOCK_CLASS(cclass) (G_TYPE_CHECK_CLASS_TYPE ((cclass), GST_TYPE_CLOCK)) +#define GST_CLOCK_GET_CLASS(clock) (G_TYPE_INSTANCE_GET_CLASS ((clock), GST_TYPE_CLOCK, GstClockClass)) +#define GST_CLOCK_CAST(clock) ((GstClock*)(clock)) /** * GstClockTime: * * A datatype to hold a time, measured in nanoseconds. */ -typedef guint64 GstClockTime; +typedef guint64 GstClockTime; /** * GST_TYPE_CLOCK_TIME: @@ -68,43 +66,59 @@ typedef gint64 GstClockTimeDiff; typedef gpointer GstClockID; /** - * GST_CLOCK_TIME_NONE: + * GST_CLOCK_TIME_NONE: (value 18446744073709551615) (type GstClockTime) * * Constant to define an undefined clock time. */ -#define GST_CLOCK_TIME_NONE ((GstClockTime) -1) +#define GST_CLOCK_TIME_NONE ((GstClockTime) -1) /** * GST_CLOCK_TIME_IS_VALID: * @time: clock time to validate * * Tests if a given #GstClockTime represents a valid defined time. */ -#define GST_CLOCK_TIME_IS_VALID(time) (((GstClockTime)(time)) != GST_CLOCK_TIME_NONE) +#define GST_CLOCK_TIME_IS_VALID(time) (((GstClockTime)(time)) != GST_CLOCK_TIME_NONE) /** - * GST_SECOND: + * GST_CLOCK_STIME_NONE: (value -9223372036854775808) (type GstClockTimeDiff) + * + * Constant to define an undefined clock time. + */ +#define GST_CLOCK_STIME_NONE ((GstClockTimeDiff)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) + +/** + * GST_SECOND: (value 1000000000) (type GstClockTimeDiff) * * Constant that defines one GStreamer second. */ -#define GST_SECOND (G_USEC_PER_SEC * G_GINT64_CONSTANT (1000)) +#define GST_SECOND ((GstClockTimeDiff)(G_USEC_PER_SEC * G_GINT64_CONSTANT (1000))) /** - * GST_MSECOND: + * GST_MSECOND: (value 1000000) (type GstClockTimeDiff) * * Constant that defines one GStreamer millisecond. */ -#define GST_MSECOND (GST_SECOND / G_GINT64_CONSTANT (1000)) +#define GST_MSECOND ((GstClockTimeDiff)(GST_SECOND / G_GINT64_CONSTANT (1000))) /** - * GST_USECOND: + * GST_USECOND: (value 1000) (type GstClockTimeDiff) * * Constant that defines one GStreamer microsecond. */ -#define GST_USECOND (GST_SECOND / G_GINT64_CONSTANT (1000000)) +#define GST_USECOND ((GstClockTimeDiff)(GST_SECOND / G_GINT64_CONSTANT (1000000))) /** - * GST_NSECOND: + * GST_NSECOND: (value 1) (type GstClockTimeDiff) * * Constant that defines one GStreamer nanosecond */ -#define GST_NSECOND (GST_SECOND / G_GINT64_CONSTANT (1000000000)) +#define GST_NSECOND ((GstClockTimeDiff)(GST_SECOND / G_GINT64_CONSTANT (1000000000))) /** @@ -112,8 +126,6 @@ typedef gpointer GstClockID; * @time: the time * * Convert a #GstClockTime to seconds. - * - * Since: 0.10.16 */ #define GST_TIME_AS_SECONDS(time) ((time) / GST_SECOND) /** @@ -121,8 +133,6 @@ typedef gpointer GstClockID; * @time: the time * * Convert a #GstClockTime to milliseconds (1/1000 of a second). - * - * Since: 0.10.16 */ #define GST_TIME_AS_MSECONDS(time) ((time) / G_GINT64_CONSTANT (1000000)) /** @@ -130,8 +140,6 @@ typedef gpointer GstClockID; * @time: the time * * Convert a #GstClockTime to microseconds (1/1000000 of a second). - * - * Since: 0.10.16 */ #define GST_TIME_AS_USECONDS(time) ((time) / G_GINT64_CONSTANT (1000)) /** @@ -139,8 +147,6 @@ typedef gpointer GstClockID; * @time: the time * * Convert a #GstClockTime to nanoseconds (1/1000000000 of a second). - * - * Since: 0.10.16 */ #define GST_TIME_AS_NSECONDS(time) (time) @@ -152,7 +158,7 @@ typedef gpointer GstClockID; * Calculate a difference between two clock times as a #GstClockTimeDiff. * The difference is calculated as @e - @s. */ -#define GST_CLOCK_DIFF(s, e) (GstClockTimeDiff)((e) - (s)) +#define GST_CLOCK_DIFF(s, e) (GstClockTimeDiff)((e) - (s)) /** * GST_TIMEVAL_TO_TIME: @@ -160,7 +166,7 @@ typedef gpointer GstClockID; * * Convert a #GTimeVal to a #GstClockTime. */ -#define GST_TIMEVAL_TO_TIME(tv) (GstClockTime)((tv).tv_sec * GST_SECOND + (tv).tv_usec * GST_USECOND) +#define GST_TIMEVAL_TO_TIME(tv) (GstClockTime)((tv).tv_sec * GST_SECOND + (tv).tv_usec * GST_USECOND) /** * GST_TIME_TO_TIMEVAL: @@ -169,16 +175,18 @@ typedef gpointer GstClockID; * * Convert a #GstClockTime to a #GTimeVal * - * 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 { \ - (tv).tv_sec = ((GstClockTime) (t)) / GST_SECOND; \ - (tv).tv_usec = (((GstClockTime) (t)) - \ - ((GstClockTime) (tv).tv_sec) * GST_SECOND) \ - / GST_USECOND; \ + * > 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 { \ + g_assert ("Value of time " #t " is out of timeval's range" && \ + ((t) / GST_SECOND) < G_MAXLONG); \ + (tv).tv_sec = (glong) (((GstClockTime) (t)) / GST_SECOND); \ + (tv).tv_usec = (glong) ((((GstClockTime) (t)) - \ + ((GstClockTime) (tv).tv_sec) * GST_SECOND) \ + / GST_USECOND); \ } G_STMT_END /** @@ -187,7 +195,7 @@ G_STMT_START { \ * * Convert a struct timespec (see man pselect) to a #GstClockTime. */ -#define GST_TIMESPEC_TO_TIME(ts) (GstClockTime)((ts).tv_sec * GST_SECOND + (ts).tv_nsec * GST_NSECOND) +#define GST_TIMESPEC_TO_TIME(ts) (GstClockTime)((ts).tv_sec * GST_SECOND + (ts).tv_nsec * GST_NSECOND) /** * GST_TIME_TO_TIMESPEC: * @t: The #GstClockTime to convert @@ -195,10 +203,12 @@ G_STMT_START { \ * * Convert a #GstClockTime to a struct timespec (see man pselect) */ -#define GST_TIME_TO_TIMESPEC(t,ts) \ -G_STMT_START { \ - (ts).tv_sec = (t) / GST_SECOND; \ - (ts).tv_nsec = ((t) - (ts).tv_sec * GST_SECOND) / GST_NSECOND; \ +#define GST_TIME_TO_TIMESPEC(t,ts) \ +G_STMT_START { \ + g_assert ("Value of time " #t " is out of timespec's range" && \ + ((t) / GST_SECOND) < G_MAXLONG); \ + (ts).tv_sec = (glong) ((t) / GST_SECOND); \ + (ts).tv_nsec = (glong) (((t) - (ts).tv_sec * GST_SECOND) / GST_NSECOND); \ } G_STMT_END /* timestamp debugging macros */ @@ -210,7 +220,7 @@ G_STMT_START { \ * the matching arguments. * * Example: - * |[ + * |[ * printf("%" GST_TIME_FORMAT "\n", GST_TIME_ARGS(ts)); * ]| */ @@ -231,18 +241,45 @@ G_STMT_START { \ (guint) ((((GstClockTime)(t)) / GST_SECOND) % 60) : 99, \ GST_CLOCK_TIME_IS_VALID (t) ? \ (guint) (((GstClockTime)(t)) % GST_SECOND) : 999999999 - /** - * GST_CLOCK_ENTRY_TRACE_NAME: + * 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. * - * The name used for tracing clock entry allocations. + * Since: 1.6 */ -#define GST_CLOCK_ENTRY_TRACE_NAME "GstClockEntry" +#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; -typedef struct _GstClockClass GstClockClass; -typedef struct _GstClockPrivate GstClockPrivate; +typedef struct _GstClockEntry GstClockEntry; +typedef struct _GstClock GstClock; +typedef struct _GstClockClass GstClockClass; +typedef struct _GstClockPrivate GstClockPrivate; /* --- prototype for async callbacks --- */ /** @@ -256,8 +293,8 @@ typedef struct _GstClockPrivate GstClockPrivate; * * Returns: %TRUE or %FALSE (currently unused) */ -typedef gboolean (*GstClockCallback) (GstClock *clock, GstClockTime time, - GstClockID id, gpointer user_data); +typedef gboolean (*GstClockCallback) (GstClock *clock, GstClockTime time, + GstClockID id, gpointer user_data); /** * GstClockReturn: * @GST_CLOCK_OK: The operation succeeded. @@ -267,20 +304,20 @@ typedef gboolean (*GstClockCallback) (GstClock *clock, GstClockTime time, * @GST_CLOCK_BADTIME: A bad time was provided to a function. * @GST_CLOCK_ERROR: An error occurred * @GST_CLOCK_UNSUPPORTED: Operation is not supported - * @GST_CLOCK_DONE: The ClockID is done waiting (Since: 0.10.32) + * @GST_CLOCK_DONE: The ClockID is done waiting * * The return value of a clock operation. */ typedef enum { - GST_CLOCK_OK = 0, - GST_CLOCK_EARLY = 1, - GST_CLOCK_UNSCHEDULED = 2, - GST_CLOCK_BUSY = 3, - GST_CLOCK_BADTIME = 4, - GST_CLOCK_ERROR = 5, - GST_CLOCK_UNSUPPORTED = 6, - GST_CLOCK_DONE = 7 + GST_CLOCK_OK = 0, + GST_CLOCK_EARLY = 1, + GST_CLOCK_UNSCHEDULED = 2, + GST_CLOCK_BUSY = 3, + GST_CLOCK_BADTIME = 4, + GST_CLOCK_ERROR = 5, + GST_CLOCK_UNSUPPORTED = 6, + GST_CLOCK_DONE = 7 } GstClockReturn; /** @@ -301,42 +338,42 @@ typedef enum { * * Cast to a clock entry */ -#define GST_CLOCK_ENTRY(entry) ((GstClockEntry *)(entry)) +#define GST_CLOCK_ENTRY(entry) ((GstClockEntry *)(entry)) /** * GST_CLOCK_ENTRY_CLOCK: * @entry: the entry to query * * Get the owner clock of the entry */ -#define GST_CLOCK_ENTRY_CLOCK(entry) ((entry)->clock) +#define GST_CLOCK_ENTRY_CLOCK(entry) ((entry)->clock) /** * GST_CLOCK_ENTRY_TYPE: * @entry: the entry to query * * Get the type of the clock entry */ -#define GST_CLOCK_ENTRY_TYPE(entry) ((entry)->type) +#define GST_CLOCK_ENTRY_TYPE(entry) ((entry)->type) /** * GST_CLOCK_ENTRY_TIME: * @entry: the entry to query * * Get the requested time of this entry */ -#define GST_CLOCK_ENTRY_TIME(entry) ((entry)->time) +#define GST_CLOCK_ENTRY_TIME(entry) ((entry)->time) /** * GST_CLOCK_ENTRY_INTERVAL: * @entry: the entry to query * * Get the interval of this periodic entry */ -#define GST_CLOCK_ENTRY_INTERVAL(entry) ((entry)->interval) +#define GST_CLOCK_ENTRY_INTERVAL(entry) ((entry)->interval) /** * GST_CLOCK_ENTRY_STATUS: * @entry: the entry to query * * The status of the entry */ -#define GST_CLOCK_ENTRY_STATUS(entry) ((entry)->status) +#define GST_CLOCK_ENTRY_STATUS(entry) ((entry)->status) /** * GstClockEntry: @@ -348,20 +385,25 @@ typedef enum { * not be extended or allocated using a custom allocator. */ struct _GstClockEntry { - gint refcount; + gint refcount; /*< protected >*/ - GstClock *clock; - GstClockEntryType type; - GstClockTime time; - GstClockTime interval; - GstClockReturn status; - GstClockCallback func; - gpointer user_data; - GDestroyNotify destroy_data; + GstClock *clock; + GstClockEntryType type; + GstClockTime time; + GstClockTime interval; + GstClockReturn status; + GstClockCallback func; + gpointer user_data; + GDestroyNotify destroy_data; gboolean unscheduled; gboolean woken_up; + + /*< private >*/ + gpointer _gst_reserved[GST_PADDING]; }; +#include + /** * GstClockFlags: * @GST_CLOCK_FLAG_CAN_DO_SINGLE_SYNC: clock can do a single sync timeout request @@ -370,6 +412,8 @@ struct _GstClockEntry { * @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 @@ -381,8 +425,9 @@ typedef enum { 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) + GST_CLOCK_FLAG_LAST = (GST_OBJECT_FLAG_LAST << 8) } GstClockFlags; /** @@ -394,78 +439,18 @@ typedef enum { #define GST_CLOCK_FLAGS(clock) GST_OBJECT_FLAGS(clock) /** - * GST_CLOCK_COND: - * @clock: the clock to query - * - * Gets the #GCond that gets signalled when the entries of the clock - * changed. - */ -#define GST_CLOCK_COND(clock) (GST_CLOCK_CAST(clock)->entries_changed) -/** - * GST_CLOCK_WAIT: - * @clock: the clock to wait on - * - * Wait on the clock until the entries changed. - */ -#define GST_CLOCK_WAIT(clock) g_cond_wait(GST_CLOCK_COND(clock),GST_OBJECT_GET_LOCK(clock)) -/** - * GST_CLOCK_TIMED_WAIT: - * @clock: the clock to wait on - * @tv: a #GTimeVal to wait. - * - * Wait on the clock until the entries changed or the specified timeout - * occurred. - */ -#define GST_CLOCK_TIMED_WAIT(clock,tv) g_cond_timed_wait(GST_CLOCK_COND(clock),GST_OBJECT_GET_LOCK(clock),tv) -/** - * GST_CLOCK_BROADCAST: - * @clock: the clock to broadcast - * - * Signal that the entries in the clock have changed. - */ -#define GST_CLOCK_BROADCAST(clock) g_cond_broadcast(GST_CLOCK_COND(clock)) - -/** * GstClock: * * #GstClock base structure. The values of this structure are * protected for subclasses, use the methods to use the #GstClock. */ struct _GstClock { - GstObject object; - - GMutex *slave_lock; /* order: SLAVE_LOCK, OBJECT_LOCK */ - - /*< protected >*/ /* with LOCK */ - GstClockTime internal_calibration; - GstClockTime external_calibration; - GstClockTime rate_numerator; - GstClockTime rate_denominator; - GstClockTime last_time; - GList *entries; - GCond *entries_changed; - - /*< private >*/ /* with LOCK */ - GstClockTime resolution; - gboolean stats; - - /* for master/slave clocks */ - GstClock *master; - - /* with SLAVE_LOCK */ - gboolean filling; - gint window_size; - gint window_threshold; - gint time_index; - GstClockTime timeout; - GstClockTime *times; - GstClockID clockid; + GstObject object; /*< private >*/ - union { - GstClockPrivate *priv; - GstClockTime _gst_reserved[GST_PADDING]; - } ABI; + GstClockPrivate *priv; + + gpointer _gst_reserved[GST_PADDING]; }; /** @@ -491,83 +476,157 @@ struct _GstClockClass { /* vtable */ GstClockTime (*change_resolution) (GstClock *clock, GstClockTime old_resolution, - GstClockTime new_resolution); + GstClockTime new_resolution); GstClockTime (*get_resolution) (GstClock *clock); - GstClockTime (*get_internal_time) (GstClock *clock); + GstClockTime (*get_internal_time) (GstClock *clock); /* waiting on an ID */ GstClockReturn (*wait) (GstClock *clock, GstClockEntry *entry, - GstClockTimeDiff *jitter); + GstClockTimeDiff *jitter); GstClockReturn (*wait_async) (GstClock *clock, GstClockEntry *entry); - void (*unschedule) (GstClock *clock, GstClockEntry *entry); + void (*unschedule) (GstClock *clock, GstClockEntry *entry); /*< private >*/ gpointer _gst_reserved[GST_PADDING]; }; -GType gst_clock_get_type (void); +GST_API +GType gst_clock_get_type (void); -GstClockTime gst_clock_set_resolution (GstClock *clock, +GST_API +GstClockTime gst_clock_set_resolution (GstClock *clock, GstClockTime resolution); -GstClockTime gst_clock_get_resolution (GstClock *clock); +GST_API +GstClockTime gst_clock_get_resolution (GstClock *clock); -GstClockTime gst_clock_get_time (GstClock *clock); -void gst_clock_set_calibration (GstClock *clock, GstClockTime internal, +GST_API +GstClockTime gst_clock_get_time (GstClock *clock); + +GST_API +void gst_clock_set_calibration (GstClock *clock, GstClockTime internal, GstClockTime external, GstClockTime rate_num, GstClockTime rate_denom); -void gst_clock_get_calibration (GstClock *clock, GstClockTime *internal, +GST_API +void gst_clock_get_calibration (GstClock *clock, GstClockTime *internal, GstClockTime *external, GstClockTime *rate_num, GstClockTime *rate_denom); /* master/slave clocks */ -gboolean gst_clock_set_master (GstClock *clock, GstClock *master); -GstClock* gst_clock_get_master (GstClock *clock); -gboolean gst_clock_add_observation (GstClock *clock, GstClockTime slave, - GstClockTime master, gdouble *r_squared); +GST_API +gboolean gst_clock_set_master (GstClock *clock, GstClock *master); + +GST_API +GstClock* gst_clock_get_master (GstClock *clock); + +GST_API +void gst_clock_set_timeout (GstClock *clock, + GstClockTime timeout); +GST_API +GstClockTime gst_clock_get_timeout (GstClock *clock); + +GST_API +gboolean gst_clock_add_observation (GstClock *clock, GstClockTime slave, + GstClockTime master, gdouble *r_squared); +GST_API +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); + +GST_API +GstClockTime gst_clock_get_internal_time (GstClock *clock); + +GST_API +GstClockTime gst_clock_adjust_unlocked (GstClock *clock, GstClockTime internal); + +GST_API +GstClockTime gst_clock_adjust_with_calibration (GstClock *clock, + GstClockTime internal_target, + GstClockTime cinternal, + GstClockTime cexternal, + GstClockTime cnum, + GstClockTime cdenom); +GST_API +GstClockTime gst_clock_unadjust_with_calibration (GstClock *clock, + GstClockTime external_target, + GstClockTime cinternal, + GstClockTime cexternal, + GstClockTime cnum, + GstClockTime cdenom); +GST_API GstClockTime gst_clock_unadjust_unlocked (GstClock * clock, GstClockTime external); +/* waiting for, signalling and checking for synchronization */ + +GST_API +gboolean gst_clock_wait_for_sync (GstClock * clock, GstClockTime timeout); + +GST_API +gboolean gst_clock_is_synced (GstClock * clock); + +/* to be used by subclasses only */ + +GST_API +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 time); -GstClockID gst_clock_new_periodic_id (GstClock *clock, - GstClockTime start_time, - GstClockTime interval); + +GST_API +GstClockID gst_clock_new_single_shot_id (GstClock *clock, + GstClockTime time); +GST_API +GstClockID gst_clock_new_periodic_id (GstClock *clock, + GstClockTime start_time, + GstClockTime interval); /* reference counting */ + +GST_API GstClockID gst_clock_id_ref (GstClockID id); + +GST_API void gst_clock_id_unref (GstClockID id); /* operations on IDs */ -gint gst_clock_id_compare_func (gconstpointer id1, gconstpointer id2); - -GstClockTime gst_clock_id_get_time (GstClockID id); -GstClockReturn gst_clock_id_wait (GstClockID id, - GstClockTimeDiff *jitter); -GstClockReturn gst_clock_id_wait_async (GstClockID id, - GstClockCallback func, - gpointer user_data); -GstClockReturn gst_clock_id_wait_async_full (GstClockID id, - GstClockCallback func, - gpointer user_data, - GDestroyNotify destroy_data); -void gst_clock_id_unschedule (GstClockID id); +GST_API +gint gst_clock_id_compare_func (gconstpointer id1, gconstpointer id2); + +GST_API +GstClockTime gst_clock_id_get_time (GstClockID id); + +GST_API +GstClockReturn gst_clock_id_wait (GstClockID id, + GstClockTimeDiff *jitter); +GST_API +GstClockReturn gst_clock_id_wait_async (GstClockID id, + GstClockCallback func, + gpointer user_data, + GDestroyNotify destroy_data); +GST_API +void gst_clock_id_unschedule (GstClockID id); + +GST_API gboolean gst_clock_single_shot_id_reinit (GstClock * clock, - GstClockID id, - GstClockTime time); + GstClockID id, + GstClockTime time); +GST_API gboolean gst_clock_periodic_id_reinit (GstClock * clock, - GstClockID id, - GstClockTime start_time, - GstClockTime interval); + GstClockID id, + GstClockTime start_time, + GstClockTime interval); + +#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC +G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstClock, gst_object_unref) +#endif G_END_DECLS