/* GStreamer * * Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net> * 2006 Edgard Lima <edgard.lima@indt.org.br> * 2009 Texas Instruments, Inc - http://www.ti.com/ * * gstv4l2bufferpool.h V4L2 buffer pool class * * 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_V4L2_BUFFER_POOL_H__ #define __GST_V4L2_BUFFER_POOL_H__ #include <gst/gst.h> typedef struct _GstV4l2BufferPool GstV4l2BufferPool; typedef struct _GstV4l2BufferPoolClass GstV4l2BufferPoolClass; typedef struct _GstV4l2Meta GstV4l2Meta; #include "gstv4l2object.h" //#include "v4l2_calls.h" GST_DEBUG_CATEGORY_EXTERN (v4l2buffer_debug); G_BEGIN_DECLS #define GST_TYPE_V4L2_BUFFER_POOL (gst_v4l2_buffer_pool_get_type()) #define GST_IS_V4L2_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_BUFFER_POOL)) #define GST_V4L2_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_BUFFER_POOL, GstV4l2BufferPool)) #define GST_V4L2_BUFFER_POOL_CAST(obj) ((GstV4l2BufferPool*)(obj)) struct _GstV4l2BufferPool { GstBufferPool parent; GstV4l2Object *obj; /* the v4l2 object */ gint video_fd; /* a dup(2) of the v4l2object's video_fd */ GstAllocator *allocator; GstAllocationParams params; guint size; gboolean add_videometa; guint num_buffers; /* number of buffers we use */ guint num_allocated; /* number of buffers allocated by the driver */ guint num_queued; /* number of buffers queued in the driver */ guint copy_threshold; /* when our pool runs lower, start handing out copies */ gboolean streaming; GstBuffer **buffers; }; struct _GstV4l2BufferPoolClass { GstBufferPoolClass parent_class; }; struct _GstV4l2Meta { GstMeta meta; gpointer mem; struct v4l2_buffer vbuffer; }; GType gst_v4l2_meta_api_get_type (void); const GstMetaInfo * gst_v4l2_meta_get_info (void); #define GST_V4L2_META_GET(buf) ((GstV4l2Meta *)gst_buffer_get_meta(buf,gst_v4l2_meta_api_get_type())) #define GST_V4L2_META_ADD(buf) ((GstV4l2Meta *)gst_buffer_add_meta(buf,gst_v4l2_meta_get_info(),NULL)) GType gst_v4l2_buffer_pool_get_type (void); GstBufferPool * gst_v4l2_buffer_pool_new (GstV4l2Object *obj, GstCaps *caps); GstFlowReturn gst_v4l2_buffer_pool_process (GstV4l2BufferPool * bpool, GstBuffer * buf); G_END_DECLS #endif /*__GST_V4L2_BUFFER_POOL_H__ */