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63fc64dd98
Use the more specialized type for the bufferpool. Use the size from the driver as the size of the image to read. Don't configure the pool when created. This will be done in the setup_allocation method later or by upstream for sinks. Remove unused properties and variables. Bufferpool sizes are now configured in the bufferpool by the elements in the pipeline. We might want to influence the pool size later somehow.
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* GStreamer
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*
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* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* 2006 Edgard Lima <edgard.lima@indt.org.br>
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* 2009 Texas Instruments, Inc - http://www.ti.com/
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*
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* gstv4l2bufferpool.h V4L2 buffer pool class
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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_V4L2_BUFFER_POOL_H__
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#define __GST_V4L2_BUFFER_POOL_H__
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#include <gst/gst.h>
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typedef struct _GstV4l2BufferPool GstV4l2BufferPool;
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typedef struct _GstV4l2BufferPoolClass GstV4l2BufferPoolClass;
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typedef struct _GstMetaV4l2 GstMetaV4l2;
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#include "gstv4l2object.h"
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//#include "v4l2_calls.h"
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GST_DEBUG_CATEGORY_EXTERN (v4l2buffer_debug);
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G_BEGIN_DECLS
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#define GST_TYPE_V4L2_BUFFER_POOL (gst_v4l2_buffer_pool_get_type())
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#define GST_IS_V4L2_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_BUFFER_POOL))
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#define GST_V4L2_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_BUFFER_POOL, GstV4l2BufferPool))
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struct _GstV4l2BufferPool
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{
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GstBufferPool parent;
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GstV4l2Object *obj; /* the v4l2 object */
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gint video_fd; /* a dup(2) of the v4l2object's video_fd */
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GstAllocator *allocator;
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guint size;
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guint min_buffers;
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guint max_buffers;
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guint prefix;
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guint align;
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gboolean add_videometa;
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guint num_allocated; /* number of buffers allocated by the driver */
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guint num_queued; /* number of buffers queued in the driver */
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gboolean streaming;
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GstBuffer **buffers;
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};
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struct _GstV4l2BufferPoolClass
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{
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GstBufferPoolClass parent_class;
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};
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struct _GstMetaV4l2 {
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GstMeta meta;
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gpointer mem;
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struct v4l2_buffer vbuffer;
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};
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const GstMetaInfo * gst_meta_v4l2_get_info (void);
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#define GST_META_V4L2_GET(buf) ((GstMetaV4l2 *)gst_buffer_get_meta(buf,gst_meta_v4l2_get_info()))
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#define GST_META_V4L2_ADD(buf) ((GstMetaV4l2 *)gst_buffer_add_meta(buf,gst_meta_v4l2_get_info(),NULL))
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GType gst_v4l2_buffer_pool_get_type (void);
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GstV4l2BufferPool * gst_v4l2_buffer_pool_new (GstV4l2Object *obj);
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GstFlowReturn gst_v4l2_buffer_pool_process (GstV4l2BufferPool * bpool, GstBuffer * buf);
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G_END_DECLS
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#endif /*__GST_V4L2_BUFFER_POOL_H__ */
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