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GstThread

GstThread — A GstBin that executes automatically using a separate thread

Synopsis


#include <gst/gst.h>


struct      GstThread;
extern      GPrivate *gst_thread_current;
enum        GstThreadState;
GstElement* gst_thread_new                  (const gchar *name);
void        gst_thread_set_priority         (GstThread *thread,
                                             GThreadPriority priority);
GstThread*  gst_thread_get_current          (void);

Object Hierarchy


  GObject
   +----GstObject
         +----GstElement
               +----GstBin
                     +----GstThread

Properties


  "priority"             GstThreadPriority    : Read / Write

Signal Prototypes


"shutdown"  void        user_function      (GstThread *gstthread,
                                            gpointer user_data);

Description

A bin that will become a thread if possible when the pipeline is started up. It can contain any set of GstObjects.

A Thread can act as a toplevel bin as it has its own scheduler.

Details

struct GstThread

struct GstThread;

gst_thread_current

extern GPrivate *gst_thread_current;

enum GstThreadState

typedef enum {
  GST_THREAD_STATE_SPINNING	= GST_BIN_FLAG_LAST,
  GST_THREAD_STATE_REAPING,
  GST_THREAD_STATE_WAITING,

  /* padding */
  GST_THREAD_FLAG_LAST 		= GST_BIN_FLAG_LAST + 4
} GstThreadState;

Flags about the current thread state

GST_THREAD_STATE_SPINNINGThe thread is runnning
GST_THREAD_STATE_REAPINGThe thread is ending
GST_THREAD_STATE_WAITINGThe thread is waiting to be run again
GST_THREAD_FLAG_LASTsubclass use this to start their enumeration

gst_thread_new ()

GstElement* gst_thread_new                  (const gchar *name);

Create a new thread with the given name.

name : the name of the thread
Returns : The new thread

gst_thread_set_priority ()

void        gst_thread_set_priority         (GstThread *thread,
                                             GThreadPriority priority);

change the thread's priority

thread : the thread to change
priority : the new priority for the thread

gst_thread_get_current ()

GstThread*  gst_thread_get_current          (void);

Gets the current GstThread.

Returns : The current GstThread or NULL if you are not running inside a GstThread.

Properties

"priority" (GstThreadPriority : Read / Write)

The thread priority

Signals

The "shutdown" signal

void        user_function                  (GstThread *gstthread,
                                            gpointer user_data);

gstthread :the object which received the signal.
user_data :user data set when the signal handler was connected.

See Also

GstBin, GstPipeline

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