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e87cd0a29a
These two elements (shmsink and shmsrc) communicate buffers using POSIX shared memory. They also communicate the caps. The source currently acts as a live source and ignores the timestamps coming from the sink. It also does not transfer the tags.
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/* GStreamer
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* Copyright (C) <2009> Collabora Ltd
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* @author: Olivier Crete <olivier.crete@collabora.co.uk
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* Copyright (C) <2009> Nokia Inc
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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_SHM_SRC_H__
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#define __GST_SHM_SRC_H__
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#include <gst/gst.h>
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#include <gst/base/gstpushsrc.h>
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#include <gst/base/gstbasesrc.h>
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G_BEGIN_DECLS
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#define GST_TYPE_SHM_SRC \
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(gst_shm_src_get_type())
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#define GST_SHM_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_SHM_SRC,GstShmSrc))
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#define GST_SHM_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_SHM_SRC,GstShmSrcClass))
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#define GST_IS_SHM_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_SHM_SRC))
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#define GST_IS_SHM_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_SHM_SRC))
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typedef struct _GstShmSrc GstShmSrc;
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typedef struct _GstShmSrcClass GstShmSrcClass;
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struct _GstShmSrc
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{
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GstPushSrc element;
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gchar *shm_name;
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int fd;
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struct GstShmHeader *shm_area;
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size_t shm_area_len;
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guint caps_gen;
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guint buffer_gen;
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gboolean unlocked;
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};
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struct _GstShmSrcClass
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{
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GstPushSrcClass parent_class;
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};
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GType gst_shm_src_get_type (void);
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G_END_DECLS
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#endif /* __GST_SHM_SRC_H__ */
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