gstreamer/gst/imagefreeze/gstimagefreeze.h
Antonio Ospite 8c26e33f20 imagefreeze: add a num-buffers property
The imagefreeze element can be handy for benchmarking downstream
elements because it re-uses the same buffer memory and introduces less
overhead compared to always creating new frames with videotestsrc.

However it's not possible to make imagefreeze send EOS when using
gst-launch-1.0.

Add a num-buffers property to make it look more like a source in the
above scenario.
2019-03-14 09:12:28 +01:00

77 lines
2.2 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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;
guint seqnum;
gint num_buffers;
gint num_buffers_left;
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__ */