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8c26e33f20
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.
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/* GStreamer
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* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_IMAGE_FREEZE_H__
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#define __GST_IMAGE_FREEZE_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_IMAGE_FREEZE \
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(gst_image_freeze_get_type())
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#define GST_IMAGE_FREEZE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreeze))
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#define GST_IMAGE_FREEZE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
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#define GST_IMAGE_FREEZE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
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#define GST_IS_IMAGE_FREEZE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IMAGE_FREEZE))
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#define GST_IS_IMAGE_FREEZE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IMAGE_FREEZE))
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typedef struct _GstImageFreeze GstImageFreeze;
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typedef struct _GstImageFreezeClass GstImageFreezeClass;
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struct _GstImageFreeze
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{
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GstElement parent;
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/* < private > */
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GstPad *sinkpad;
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GstPad *srcpad;
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GMutex lock;
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GstBuffer *buffer;
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gint fps_n, fps_d;
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GstSegment segment;
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gboolean need_segment;
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guint seqnum;
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gint num_buffers;
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gint num_buffers_left;
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guint64 offset;
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/* TRUE if currently doing a flushing seek, protected
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* by srcpad's stream lock */
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gint seeking;
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};
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struct _GstImageFreezeClass
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{
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GstElementClass parent_class;
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};
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GType gst_image_freeze_get_type (void);
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G_END_DECLS
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#endif /* __GST_IMAGE_FREEZE_H__ */
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