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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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c2f41a8906
Original commit message from CVS: Next big merge. Added GstBus for mainloop integration. Added GstMessage for sending notifications on the bus. Added GstTask as an abstraction for pipeline entry points. Removed GstThread. Removed Schedulers. Simplified GstQueue for multithreaded core. Made _link threadsafe, removed old capsnego. Added STREAM_LOCK and PREROLL_LOCK in GstPad. Added pad blocking functions. Reworked scheduling functions in GstPad to prepare for scheduling updates soon. Moved events out of data stream. Simplified GstEvent types. Added return values to push/pull. Removed clocking from GstElement. Added prototypes for state change function for next merge. Removed iterate from bins and state change management. Fixed some elements, disabled others for now. Fixed -inspect and -launch. Added check for GstBus.
97 lines
3 KiB
C
97 lines
3 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* <2005> Wim Taymans <wim@fluendo.com>
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*
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* gsttask.h: Streaming tasks
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_TASK_H__
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#define __GST_TASK_H__
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#include <gst/gstobject.h>
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G_BEGIN_DECLS
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typedef void (*GstTaskFunction) (void *data);
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/* --- standard type macros --- */
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#define GST_TYPE_TASK (gst_task_get_type ())
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#define GST_TASK(task) (G_TYPE_CHECK_INSTANCE_CAST ((task), GST_TYPE_TASK, GstTask))
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#define GST_IS_TASK(task) (G_TYPE_CHECK_INSTANCE_TYPE ((task), GST_TYPE_TASK))
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#define GST_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_CAST ((tclass), GST_TYPE_TASK, GstTaskClass))
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#define GST_IS_TASK_CLASS(tclass) (G_TYPE_CHECK_CLASS_TYPE ((tclass), GST_TYPE_TASK))
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#define GST_TASK_GET_CLASS(task) (G_TYPE_INSTANCE_GET_CLASS ((task), GST_TYPE_TASK, GstTaskClass))
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#define GST_TASK_CAST(task) ((GstTask*)(task))
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typedef struct _GstTask GstTask;
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typedef struct _GstTaskClass GstTaskClass;
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typedef enum {
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GST_TASK_STARTED,
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GST_TASK_STOPPED,
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GST_TASK_PAUSED,
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} GstTaskState;
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#define GST_TASK_STATE(task) (GST_TASK_CAST(task)->state)
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#define GST_TASK_GET_COND(task) (GST_TASK_CAST(task)->cond)
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#define GST_TASK_WAIT(task) g_cond_wait(GST_TASK_GET_COND (task), GST_GET_LOCK (task))
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#define GST_TASK_SIGNAL(task) g_cond_signal(GST_TASK_GET_COND (task))
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#define GST_TASK_BROADCAST(task) g_cond_breadcast(GST_TASK_GET_COND (task))
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struct _GstTask {
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GstObject object;
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/*< public >*/ /* with TASK_LOCK */
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GstTaskState state;
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GCond *cond;
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GstTaskFunction func;
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gpointer data;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstTaskClass {
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GstObjectClass parent_class;
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/*< protected >*/
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gboolean (*start) (GstTask *task);
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gboolean (*stop) (GstTask *task);
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gboolean (*pause) (GstTask *task);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_task_get_type (void);
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GstTask* gst_task_create (GstTaskFunction func, gpointer data);
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GstTaskState gst_task_get_state (GstTask *task);
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gboolean gst_task_start (GstTask *task);
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gboolean gst_task_stop (GstTask *task);
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gboolean gst_task_pause (GstTask *task);
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G_END_DECLS
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#endif /* __GST_TASK_H__ */
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