2 * gstvaapivideobuffer.c - Gstreamer/VA video buffer
4 * Copyright (C) 2010-2011 Splitted-Desktop Systems
5 * Copyright (C) 2011-2013 Intel Corporation
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public License
9 * as published by the Free Software Foundation; either version 2.1
10 * of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301 USA
24 * SECTION:gstvaapivideobuffer
25 * @short_description: VA video buffer for GStreamer
28 #include "gst/vaapi/sysdeps.h"
29 #include "gstvaapivideobuffer.h"
31 # include "gstvaapivideoconverter_x11.h"
34 # include "gstvaapivideoconverter_glx.h"
37 #if GST_CHECK_VERSION(1,0,0)
38 #include <gst/video/gstsurfacemeta.h>
40 #define GST_VAAPI_SURFACE_META_CAST(obj) \
41 ((GstVaapiSurfaceMeta *)(obj))
43 typedef struct _GstVaapiSurfaceMeta GstVaapiSurfaceMeta;
44 struct _GstVaapiSurfaceMeta {
49 #define GST_VAAPI_SURFACE_META_INFO gst_vaapi_surface_meta_get_info()
50 static const GstMetaInfo *
51 gst_vaapi_surface_meta_get_info(void);
53 typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
54 GstSurfaceMeta *meta, const gchar *type, GValue *dest);
57 static GstSurfaceConverter *
58 gst_vaapi_surface_create_converter_x11(GstSurfaceMeta *base_meta,
59 const gchar *type, GValue *dest)
61 GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
63 return gst_vaapi_video_converter_x11_new(meta->buffer, type, dest);
66 #undef gst_vaapi_video_converter_x11_new
67 #define gst_vaapi_video_converter_x11_new \
68 gst_vaapi_surface_create_converter_x11
72 static GstSurfaceConverter *
73 gst_vaapi_surface_create_converter_glx(GstSurfaceMeta *base_meta,
74 const gchar *type, GValue *dest)
76 GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
78 return gst_vaapi_video_converter_glx_new(meta->buffer, type, dest);
81 #undef gst_vaapi_video_converter_glx_new
82 #define gst_vaapi_video_converter_glx_new \
83 gst_vaapi_surface_create_converter_glx
86 static GstSurfaceConverter *
87 gst_vaapi_surface_create_converter(GstSurfaceMeta *base_meta,
88 const gchar *type, GValue *dest)
90 GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
91 GstVaapiVideoMeta * const vmeta =
92 gst_buffer_get_vaapi_video_meta(meta->buffer);
93 GstSurfaceConverterCreateFunc func;
95 if (G_UNLIKELY(!vmeta))
98 func = (GstSurfaceConverterCreateFunc)
99 gst_vaapi_video_meta_get_surface_converter(vmeta);
101 return func ? func(base_meta, type, dest) : NULL;
105 gst_vaapi_surface_meta_init(GstVaapiSurfaceMeta *meta, gpointer params,
108 meta->base.create_converter = gst_vaapi_surface_create_converter;
109 meta->buffer = buffer;
114 gst_vaapi_surface_meta_free(GstVaapiSurfaceMeta *meta, GstBuffer *buffer)
119 gst_vaapi_surface_meta_transform(GstBuffer *dst_buffer, GstMeta *meta,
120 GstBuffer *src_buffer, GQuark type, gpointer data)
122 GstVaapiVideoMeta * const src_vmeta =
123 gst_buffer_get_vaapi_video_meta(src_buffer);
125 if (GST_META_TRANSFORM_IS_COPY(type)) {
126 GstVaapiSurfaceMeta * const dst_smeta = GST_VAAPI_SURFACE_META_CAST(
127 gst_buffer_add_meta(dst_buffer, GST_VAAPI_SURFACE_META_INFO, NULL));
129 /* Note: avoid meta lookups in gst_vaapi_surface_create_converter()
130 by directly calling the GstVaapiVideoMeta::surface_converter hook */
131 dst_smeta->base.create_converter = (GstSurfaceConverterCreateFunc)
132 gst_vaapi_video_meta_get_surface_converter(src_vmeta);
139 gst_vaapi_surface_meta_get_info(void)
141 static gsize g_meta_info;
143 if (g_once_init_enter(&g_meta_info)) {
144 gsize meta_info = GPOINTER_TO_SIZE(gst_meta_register(
145 GST_SURFACE_META_API_TYPE,
146 "GstVaapiSurfaceMeta", sizeof(GstVaapiSurfaceMeta),
147 (GstMetaInitFunction)gst_vaapi_surface_meta_init,
148 (GstMetaFreeFunction)gst_vaapi_surface_meta_free,
149 (GstMetaTransformFunction)gst_vaapi_surface_meta_transform));
150 g_once_init_leave(&g_meta_info, meta_info);
152 return GSIZE_TO_POINTER(g_meta_info);
156 gst_surface_buffer_new(void)
158 GstBuffer * const buffer = gst_buffer_new();
161 gst_buffer_add_meta(buffer, GST_VAAPI_SURFACE_META_INFO, NULL);
165 #include <gst/video/gstsurfacebuffer.h>
167 #define GST_VAAPI_TYPE_VIDEO_BUFFER \
168 (gst_vaapi_video_buffer_get_type())
170 #define GST_VAAPI_VIDEO_BUFFER(obj) \
171 (G_TYPE_CHECK_INSTANCE_CAST((obj), \
172 GST_VAAPI_TYPE_VIDEO_BUFFER, \
173 GstVaapiVideoBuffer))
175 #define GST_VAAPI_VIDEO_BUFFER_CLASS(klass) \
176 (G_TYPE_CHECK_CLASS_CAST((klass), \
177 GST_VAAPI_TYPE_VIDEO_BUFFER, \
178 GstVaapiVideoBufferClass))
180 #define GST_VAAPI_IS_VIDEO_BUFFER(obj) \
181 (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_VIDEO_BUFFER))
183 #define GST_VAAPI_IS_VIDEO_BUFFER_CLASS(klass) \
184 (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_VIDEO_BUFFER))
186 #define GST_VAAPI_VIDEO_BUFFER_GET_CLASS(obj) \
187 (G_TYPE_INSTANCE_GET_CLASS((obj), \
188 GST_VAAPI_TYPE_VIDEO_BUFFER, \
189 GstVaapiVideoBufferClass))
191 typedef struct _GstVaapiVideoBufferClass GstVaapiVideoBufferClass;
194 * GstVaapiVideoBuffer:
196 * A #GstBuffer holding video objects (#GstVaapiSurface and #GstVaapiImage).
198 struct _GstVaapiVideoBuffer {
200 GstSurfaceBuffer parent_instance;
204 * GstVaapiVideoBufferClass:
206 * A #GstBuffer holding video objects
208 struct _GstVaapiVideoBufferClass {
210 GstSurfaceBufferClass parent_class;
214 gst_vaapi_video_buffer_get_type(void) G_GNUC_CONST;
216 G_DEFINE_TYPE(GstVaapiVideoBuffer,
217 gst_vaapi_video_buffer,
218 GST_TYPE_SURFACE_BUFFER)
220 typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
221 GstSurfaceBuffer *surface, const gchar *type, GValue *dest);
223 static GstSurfaceConverter *
224 gst_vaapi_video_buffer_create_converter(GstSurfaceBuffer *surface,
225 const gchar *type, GValue *dest)
227 GstVaapiVideoMeta * const meta =
228 gst_buffer_get_vaapi_video_meta(GST_BUFFER(surface));
229 GstSurfaceConverterCreateFunc func;
231 g_return_val_if_fail(meta != NULL, NULL);
233 func = (GstSurfaceConverterCreateFunc)
234 gst_vaapi_video_meta_get_surface_converter(meta);
236 return func ? func(surface, type, dest) : NULL;
240 gst_vaapi_video_buffer_class_init(GstVaapiVideoBufferClass *klass)
242 GstSurfaceBufferClass * const surface_class =
243 GST_SURFACE_BUFFER_CLASS(klass);
245 surface_class->create_converter = gst_vaapi_video_buffer_create_converter;
249 gst_vaapi_video_buffer_init(GstVaapiVideoBuffer *buffer)
253 static inline GstBuffer *
254 gst_surface_buffer_new(void)
256 return GST_BUFFER_CAST(gst_mini_object_new(GST_VAAPI_TYPE_VIDEO_BUFFER));
261 get_surface_converter(GstVaapiDisplay *display)
265 switch (gst_vaapi_display_get_display_type(display)) {
267 case GST_VAAPI_DISPLAY_TYPE_X11:
268 func = (GFunc)gst_vaapi_video_converter_x11_new;
272 case GST_VAAPI_DISPLAY_TYPE_GLX:
273 func = (GFunc)gst_vaapi_video_converter_glx_new;
284 new_vbuffer(GstVaapiVideoMeta *meta)
288 g_return_val_if_fail(meta != NULL, NULL);
290 gst_vaapi_video_meta_set_surface_converter(meta,
291 get_surface_converter(gst_vaapi_video_meta_get_display(meta)));
293 buffer = gst_surface_buffer_new();
295 gst_buffer_set_vaapi_video_meta(buffer, meta);
296 gst_vaapi_video_meta_unref(meta);
301 gst_vaapi_video_buffer_new(GstVaapiVideoMeta *meta)
303 g_return_val_if_fail(meta != NULL, NULL);
305 return new_vbuffer(gst_vaapi_video_meta_ref(meta));
309 gst_vaapi_video_buffer_new_from_pool(GstVaapiVideoPool *pool)
311 return new_vbuffer(gst_vaapi_video_meta_new_from_pool(pool));
315 gst_vaapi_video_buffer_new_from_buffer(GstBuffer *buffer)
317 GstVaapiVideoMeta * const meta = gst_buffer_get_vaapi_video_meta(buffer);
319 return meta ? new_vbuffer(gst_vaapi_video_meta_ref(meta)) : NULL;
323 gst_vaapi_video_buffer_new_with_image(GstVaapiImage *image)
325 return new_vbuffer(gst_vaapi_video_meta_new_with_image(image));
329 gst_vaapi_video_buffer_new_with_surface(GstVaapiSurface *surface)
331 return new_vbuffer(gst_vaapi_video_meta_new_with_surface(surface));
335 gst_vaapi_video_buffer_new_with_surface_proxy(GstVaapiSurfaceProxy *proxy)
337 return new_vbuffer(gst_vaapi_video_meta_new_with_surface_proxy(proxy));