gstreamermm
1.10.0
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A data type to hold the handle to an outstanding sync or async clock callback. More...
#include <gstreamermm/clock.h>
Public Types | |
typedef sigc::slot< bool, const Glib::RefPtr< Gst::Clock >&, Gst::ClockTime, const Glib::RefPtr< Gst::ClockID >&> | SlotClock |
For example, bool on_clock(const Glib::RefPtr<Gst::Clock>& clock, ClockTime time, const Glib::RefPtr<Gst::ClockID>& id);. More... | |
Public Member Functions | |
void | reference () const |
Increment the reference count for this object. More... | |
void | unreference () const |
Decrement the reference count for this object. More... | |
GstClockEntry* | gobj () |
Provides access to the underlying C instance. More... | |
const GstClockEntry* | gobj () const |
Provides access to the underlying C instance. More... | |
GstClockEntry* | gobj_copy () const |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More... | |
ClockID ()=delete | |
ClockID (const ClockID&)=delete | |
ClockID& | operator= (const ClockID&)=delete |
Gst::ClockTime | get_time () const |
Get the time of the clock ID. More... | |
ClockReturn | wait (Gst::ClockTimeDiff& jitter) |
Perform a blocking wait on the Gst::ClockID. More... | |
ClockReturn | wait () |
A wait() convenience overload. More... | |
ClockReturn | wait_async (const SlotClock& slot) |
Register a slot on the given Gst::ClockID id with the given slot. More... | |
void | unschedule () |
Cancel an outstanding request with id. More... | |
Protected Member Functions | |
void | operator delete (void*, std::size_t) |
Related Functions | |
(Note that these are not member functions.) | |
Glib::RefPtr< Gst::ClockID > | wrap (GstClockEntry* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
A data type to hold the handle to an outstanding sync or async clock callback.
typedef sigc::slot< bool, const Glib::RefPtr<Gst::Clock>&, Gst::ClockTime, const Glib::RefPtr<Gst::ClockID>& > Gst::ClockID::SlotClock |
For example, bool on_clock(const Glib::RefPtr<Gst::Clock>& clock, ClockTime time, const Glib::RefPtr<Gst::ClockID>& id);.
The clock function return value is currently unused (see GstClockCallback).
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delete |
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delete |
Gst::ClockTime Gst::ClockID::get_time | ( | ) | const |
Get the time of the clock ID.
MT safe.
GstClockEntry* Gst::ClockID::gobj | ( | ) |
Provides access to the underlying C instance.
const GstClockEntry* Gst::ClockID::gobj | ( | ) | const |
Provides access to the underlying C instance.
GstClockEntry* Gst::ClockID::gobj_copy | ( | ) | const |
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
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protected |
void Gst::ClockID::reference | ( | ) | const |
Increment the reference count for this object.
You should never need to do this manually - use the object via a RefPtr instead.
void Gst::ClockID::unreference | ( | ) | const |
Decrement the reference count for this object.
You should never need to do this manually - use the object via a RefPtr instead.
void Gst::ClockID::unschedule | ( | ) |
Cancel an outstanding request with id.
This can either be an outstanding async notification or a pending sync notification. After this call, id cannot be used anymore to receive sync or async notifications, you need to create a new Gst::ClockID.
MT safe.
ClockReturn Gst::ClockID::wait | ( | Gst::ClockTimeDiff& | jitter | ) |
Perform a blocking wait on the Gst::ClockID.
The Gst::ClockID should have been created with Gst::Clock::create_single_shot_id() or Gst::Clock::create_periodic_id() and should not have been unscheduled with a call to unschedule().
If this function returns Gst::CLOCK_OK or Gst::CLOCK_EARLY, the jitter argument will contain the difference against the clock and the time of the Gst::ClockID when this method was called. Positive values indicate how late the Gst::ClockID was relative to the clock (in which case this function will return Gst::CLOCK_EARLY). Negative values indicate how much time was spent waiting on the clock before this function returned.
jitter | A pointer that will contain the jitter. |
MT safe.
ClockReturn Gst::ClockID::wait | ( | ) |
A wait() convenience overload.
ClockReturn Gst::ClockID::wait_async | ( | const SlotClock& | slot | ) |
Register a slot on the given Gst::ClockID id with the given slot.
When passing a Gst::ClockID with an invalid time to this function, the slot will be called immediatly with a time set to Gst::CLOCK_TIME_NONE. The slot will be called when the time of id has been reached.
slot | The slot to callback. |
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related |
A Glib::wrap() method for this object.
object | The C instance. |
take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |