1 /* GStreamer 2 * Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef __GST_VIDEO_POOL_H__ 21 #define __GST_VIDEO_POOL_H__ 22 23 #include <gst/gst.h> 24 25 #include <gst/video/video.h> 26 27 G_BEGIN_DECLS 28 29 /** 30 * GST_BUFFER_POOL_OPTION_VIDEO_META: 31 * 32 * An option that can be activated on bufferpool to request video metadata 33 * on buffers from the pool. 34 */ 35 #define GST_BUFFER_POOL_OPTION_VIDEO_META "GstBufferPoolOptionVideoMeta" 36 37 /** 38 * GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT: 39 * 40 * A bufferpool option to enable extra padding. When a bufferpool supports this 41 * option, gst_buffer_pool_config_set_video_alignment() can be called. 42 * 43 * When this option is enabled on the bufferpool, 44 * #GST_BUFFER_POOL_OPTION_VIDEO_META should also be enabled. 45 */ 46 #define GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT "GstBufferPoolOptionVideoAlignment" 47 48 /* setting a bufferpool config */ 49 50 GST_VIDEO_API 51 void gst_buffer_pool_config_set_video_alignment (GstStructure *config, const GstVideoAlignment *align); 52 53 GST_VIDEO_API 54 gboolean gst_buffer_pool_config_get_video_alignment (GstStructure *config, GstVideoAlignment *align); 55 56 /* video bufferpool */ 57 typedef struct _GstVideoBufferPool GstVideoBufferPool; 58 typedef struct _GstVideoBufferPoolClass GstVideoBufferPoolClass; 59 typedef struct _GstVideoBufferPoolPrivate GstVideoBufferPoolPrivate; 60 61 #define GST_TYPE_VIDEO_BUFFER_POOL (gst_video_buffer_pool_get_type()) 62 #define GST_IS_VIDEO_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_BUFFER_POOL)) 63 #define GST_VIDEO_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_BUFFER_POOL, GstVideoBufferPool)) 64 #define GST_VIDEO_BUFFER_POOL_CAST(obj) ((GstVideoBufferPool*)(obj)) 65 66 struct _GstVideoBufferPool 67 { 68 GstBufferPool bufferpool; 69 70 GstVideoBufferPoolPrivate *priv; 71 }; 72 73 struct _GstVideoBufferPoolClass 74 { 75 GstBufferPoolClass parent_class; 76 }; 77 78 GST_VIDEO_API 79 GType gst_video_buffer_pool_get_type (void); 80 81 GST_VIDEO_API 82 GstBufferPool * gst_video_buffer_pool_new (void); 83 84 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVideoBufferPool, gst_object_unref) 85 86 G_END_DECLS 87 88 #endif /* __GST_VIDEO_POOL_H__ */ 89