* 2006 Edgard Lima <edgard.lima@indt.org.br>
* 2009 Texas Instruments, Inc - http://www.ti.com/
*
- * gstv4l2src.h: BT8x8/V4L2 source element
+ * 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
* Boston, MA 02111-1307, USA.
*/
-#ifndef __GSTV4L2BUFFER_H__
-#define __GSTV4L2BUFFER_H__
+#ifndef __GST_V4L2_BUFFER_POOL_H__
+#define __GST_V4L2_BUFFER_POOL_H__
#include <gst/gst.h>
-#include "v4l2_calls.h"
+
+typedef struct _GstV4l2BufferPool GstV4l2BufferPool;
+typedef struct _GstV4l2BufferPoolClass GstV4l2BufferPoolClass;
+typedef struct _GstMetaV4l2 GstMetaV4l2;
+
+#include "gstv4l2object.h"
+//#include "v4l2_calls.h"
GST_DEBUG_CATEGORY_EXTERN (v4l2buffer_debug);
G_BEGIN_DECLS
-GType gst_v4l2_buffer_get_type (void);
-#define GST_TYPE_V4L2_BUFFER (gst_v4l2_buffer_get_type())
-#define GST_IS_V4L2_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4L2_BUFFER))
-#define GST_V4L2_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_BUFFER, GstV4l2Buffer))
-
-GType gst_v4l2_buffer_pool_get_type (void);
-#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_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 */
-typedef struct _GstV4l2BufferPool GstV4l2BufferPool;
-typedef struct _GstV4l2Buffer GstV4l2Buffer;
+ GstAllocator *allocator;
+ guint size;
+ guint min_buffers;
+ guint max_buffers;
+ guint prefix;
+ guint align;
+ gboolean add_videometa;
+ guint num_allocated; /* number of buffers allocated by the driver */
+ guint num_queued; /* number of buffers queued in the driver */
-struct _GstV4l2BufferPool
-{
- GstMiniObject parent;
+ gboolean streaming;
- GstElement *v4l2elem; /* the v4l2 src/sink that owns us.. maybe we should be owned by v4l2object? */
- gboolean requeuebuf; /* if true, unusued buffers are automatically re-QBUF'd */
- enum v4l2_buf_type type; /* V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_BUF_TYPE_VIDEO_OUTPUT */
+ GstBuffer **buffers;
+};
- GMutex *lock;
- gboolean running; /* with lock */
- gint num_live_buffers; /* number of buffers not with driver (capture) or not in avail buffer pool (display) */
- GAsyncQueue* avail_buffers;/* pool of available buffers, not with the driver and which aren't held outside the bufferpool */
- gint video_fd; /* a dup(2) of the v4l2object's video_fd */
- guint buffer_count;
- GstV4l2Buffer **buffers;
+struct _GstV4l2BufferPoolClass
+{
+ GstBufferPoolClass parent_class;
};
-struct _GstV4l2Buffer {
- GstBuffer buffer;
+struct _GstMetaV4l2 {
+ GstMeta meta;
+ gpointer mem;
struct v4l2_buffer vbuffer;
-
- /* FIXME: have GstV4l2Src* instead, as this has GstV4l2BufferPool* */
- /* FIXME: do we really want to fix this if GstV4l2Buffer/Pool is shared
- * between v4l2src and v4l2sink??
- */
- GstV4l2BufferPool *pool;
};
-G_END_DECLS
-
-void gst_v4l2_buffer_pool_destroy (GstV4l2BufferPool * pool);
-GstV4l2BufferPool *gst_v4l2_buffer_pool_new (GstElement *v4l2elem, gint fd, gint num_buffers, GstCaps * caps, gboolean requeuebuf, enum v4l2_buf_type type);
-
+const GstMetaInfo * gst_meta_v4l2_get_info (void);
+#define GST_META_V4L2_GET(buf) ((GstMetaV4l2 *)gst_buffer_get_meta(buf,gst_meta_v4l2_get_info()))
+#define GST_META_V4L2_ADD(buf) ((GstMetaV4l2 *)gst_buffer_add_meta(buf,gst_meta_v4l2_get_info(),NULL))
-GstV4l2Buffer *gst_v4l2_buffer_pool_get (GstV4l2BufferPool *pool, gboolean blocking);
-gboolean gst_v4l2_buffer_pool_qbuf (GstV4l2BufferPool *pool, GstV4l2Buffer *buf);
-GstV4l2Buffer *gst_v4l2_buffer_pool_dqbuf (GstV4l2BufferPool *pool);
+GType gst_v4l2_buffer_pool_get_type (void);
-gint gst_v4l2_buffer_pool_available_buffers (GstV4l2BufferPool *pool);
+GstBufferPool * gst_v4l2_buffer_pool_new (GstV4l2Object *obj, GstCaps *caps);
+GstFlowReturn gst_v4l2_buffer_pool_process (GstV4l2BufferPool * bpool, GstBuffer * buf);
-#define GST_V4L2_BUFFER_POOL_LOCK(pool) g_mutex_lock ((pool)->lock)
-#define GST_V4L2_BUFFER_POOL_UNLOCK(pool) g_mutex_unlock ((pool)->lock)
+G_END_DECLS
-#endif /* __GSTV4L2BUFFER_H__ */
+#endif /*__GST_V4L2_BUFFER_POOL_H__ */