gstreamer/gst/imagefreeze/gstimagefreeze.h
Sebastian Dröge 86403e85c5 imagefreeze: Fix another subtle race condition related to starting the srcpad task
Due to a seek the srcpad task could be started in rare circumstances although
it shouldn't be started anymore because no upstream buffer is available.
2010-09-04 14:52:08 +02:00

74 lines
2.1 KiB
C

/* GStreamer
* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* 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.
*/
#ifndef __GST_IMAGE_FREEZE_H__
#define __GST_IMAGE_FREEZE_H__
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_IMAGE_FREEZE \
(gst_image_freeze_get_type())
#define GST_IMAGE_FREEZE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreeze))
#define GST_IMAGE_FREEZE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
#define GST_IMAGE_FREEZE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
#define GST_IS_IMAGE_FREEZE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IMAGE_FREEZE))
#define GST_IS_IMAGE_FREEZE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IMAGE_FREEZE))
typedef struct _GstImageFreeze GstImageFreeze;
typedef struct _GstImageFreezeClass GstImageFreezeClass;
struct _GstImageFreeze
{
GstElement parent;
/* < private > */
GstPad *sinkpad;
GstPad *srcpad;
GMutex *lock;
GstBuffer *buffer;
gint fps_n, fps_d;
GstSegment segment;
gboolean need_segment;
GstEvent *close_segment;
guint64 offset;
/* TRUE if currently doing a flushing seek, protected
* by srcpad's stream lock */
gint seeking;
};
struct _GstImageFreezeClass
{
GstElementClass parent_class;
};
GType gst_image_freeze_get_type (void);
G_END_DECLS
#endif /* __GST_IMAGE_FREEZE_H__ */