gstreamer/gst/vaapi/gstvaapivideobuffer.c
Gwenole Beauchesne 15519ebe3d legal: add per-file authorship information.
Credit original authors on a per-file basis as we cannot expect people
to know all country-specific rules, or bother browsing through the git
history.
2013-11-22 06:39:15 +01:00

352 lines
9.9 KiB
C

/*
* gstvaapivideobuffer.c - Gstreamer/VA video buffer
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2011-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:gstvaapivideobuffer
* @short_description: VA video buffer for GStreamer
*/
#include "gst/vaapi/sysdeps.h"
#include "gstvaapivideobuffer.h"
#if USE_X11 && !GST_CHECK_VERSION(1,1,0)
# include "gstvaapivideoconverter_x11.h"
#endif
#if USE_GLX && !GST_CHECK_VERSION(1,1,0)
# include "gstvaapivideoconverter_glx.h"
#endif
#if GST_CHECK_VERSION(1,1,0)
static inline GstBuffer *
gst_surface_buffer_new(void)
{
return gst_buffer_new();
}
#elif GST_CHECK_VERSION(1,0,0)
#include <gst/video/gstsurfacemeta.h>
#define GST_VAAPI_SURFACE_META_CAST(obj) \
((GstVaapiSurfaceMeta *)(obj))
typedef struct _GstVaapiSurfaceMeta GstVaapiSurfaceMeta;
struct _GstVaapiSurfaceMeta {
GstSurfaceMeta base;
GstBuffer *buffer;
};
#define GST_VAAPI_SURFACE_META_INFO gst_vaapi_surface_meta_get_info()
static const GstMetaInfo *
gst_vaapi_surface_meta_get_info(void);
typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
GstSurfaceMeta *meta, const gchar *type, GValue *dest);
#if USE_X11
static GstSurfaceConverter *
gst_vaapi_surface_create_converter_x11(GstSurfaceMeta *base_meta,
const gchar *type, GValue *dest)
{
GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
return gst_vaapi_video_converter_x11_new(meta->buffer, type, dest);
}
#undef gst_vaapi_video_converter_x11_new
#define gst_vaapi_video_converter_x11_new \
gst_vaapi_surface_create_converter_x11
#endif
#if USE_GLX
static GstSurfaceConverter *
gst_vaapi_surface_create_converter_glx(GstSurfaceMeta *base_meta,
const gchar *type, GValue *dest)
{
GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
return gst_vaapi_video_converter_glx_new(meta->buffer, type, dest);
}
#undef gst_vaapi_video_converter_glx_new
#define gst_vaapi_video_converter_glx_new \
gst_vaapi_surface_create_converter_glx
#endif
static GstSurfaceConverter *
gst_vaapi_surface_create_converter(GstSurfaceMeta *base_meta,
const gchar *type, GValue *dest)
{
GstVaapiSurfaceMeta * const meta = GST_VAAPI_SURFACE_META_CAST(base_meta);
GstVaapiVideoMeta * const vmeta =
gst_buffer_get_vaapi_video_meta(meta->buffer);
GstSurfaceConverterCreateFunc func;
if (G_UNLIKELY(!vmeta))
return NULL;
func = (GstSurfaceConverterCreateFunc)
gst_vaapi_video_meta_get_surface_converter(vmeta);
return func ? func(base_meta, type, dest) : NULL;
}
static gboolean
gst_vaapi_surface_meta_init(GstVaapiSurfaceMeta *meta, gpointer params,
GstBuffer *buffer)
{
meta->base.create_converter = gst_vaapi_surface_create_converter;
meta->buffer = buffer;
return TRUE;
}
static void
gst_vaapi_surface_meta_free(GstVaapiSurfaceMeta *meta, GstBuffer *buffer)
{
}
static gboolean
gst_vaapi_surface_meta_transform(GstBuffer *dst_buffer, GstMeta *meta,
GstBuffer *src_buffer, GQuark type, gpointer data)
{
GstVaapiVideoMeta * const src_vmeta =
gst_buffer_get_vaapi_video_meta(src_buffer);
if (GST_META_TRANSFORM_IS_COPY(type)) {
GstVaapiSurfaceMeta * const dst_smeta = GST_VAAPI_SURFACE_META_CAST(
gst_buffer_add_meta(dst_buffer, GST_VAAPI_SURFACE_META_INFO, NULL));
/* Note: avoid meta lookups in gst_vaapi_surface_create_converter()
by directly calling the GstVaapiVideoMeta::surface_converter hook */
dst_smeta->base.create_converter = (GstSurfaceConverterCreateFunc)
gst_vaapi_video_meta_get_surface_converter(src_vmeta);
return TRUE;
}
return FALSE;
}
const GstMetaInfo *
gst_vaapi_surface_meta_get_info(void)
{
static gsize g_meta_info;
if (g_once_init_enter(&g_meta_info)) {
gsize meta_info = GPOINTER_TO_SIZE(gst_meta_register(
GST_SURFACE_META_API_TYPE,
"GstVaapiSurfaceMeta", sizeof(GstVaapiSurfaceMeta),
(GstMetaInitFunction)gst_vaapi_surface_meta_init,
(GstMetaFreeFunction)gst_vaapi_surface_meta_free,
(GstMetaTransformFunction)gst_vaapi_surface_meta_transform));
g_once_init_leave(&g_meta_info, meta_info);
}
return GSIZE_TO_POINTER(g_meta_info);
}
static GstBuffer *
gst_surface_buffer_new(void)
{
GstBuffer * const buffer = gst_buffer_new();
if (buffer)
gst_buffer_add_meta(buffer, GST_VAAPI_SURFACE_META_INFO, NULL);
return buffer;
}
#else
#include <gst/video/gstsurfacebuffer.h>
#define GST_VAAPI_TYPE_VIDEO_BUFFER \
(gst_vaapi_video_buffer_get_type())
#define GST_VAAPI_VIDEO_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
GST_VAAPI_TYPE_VIDEO_BUFFER, \
GstVaapiVideoBuffer))
#define GST_VAAPI_VIDEO_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
GST_VAAPI_TYPE_VIDEO_BUFFER, \
GstVaapiVideoBufferClass))
#define GST_VAAPI_IS_VIDEO_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_VIDEO_BUFFER))
#define GST_VAAPI_IS_VIDEO_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_VIDEO_BUFFER))
#define GST_VAAPI_VIDEO_BUFFER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
GST_VAAPI_TYPE_VIDEO_BUFFER, \
GstVaapiVideoBufferClass))
typedef struct _GstVaapiVideoBufferClass GstVaapiVideoBufferClass;
/**
* GstVaapiVideoBuffer:
*
* A #GstBuffer holding video objects (#GstVaapiSurface and #GstVaapiImage).
*/
struct _GstVaapiVideoBuffer {
/*< private >*/
GstSurfaceBuffer parent_instance;
};
/**
* GstVaapiVideoBufferClass:
*
* A #GstBuffer holding video objects
*/
struct _GstVaapiVideoBufferClass {
/*< private >*/
GstSurfaceBufferClass parent_class;
};
GType
gst_vaapi_video_buffer_get_type(void) G_GNUC_CONST;
G_DEFINE_TYPE(GstVaapiVideoBuffer,
gst_vaapi_video_buffer,
GST_TYPE_SURFACE_BUFFER)
typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
GstSurfaceBuffer *surface, const gchar *type, GValue *dest);
static GstSurfaceConverter *
gst_vaapi_video_buffer_create_converter(GstSurfaceBuffer *surface,
const gchar *type, GValue *dest)
{
GstVaapiVideoMeta * const meta =
gst_buffer_get_vaapi_video_meta(GST_BUFFER(surface));
GstSurfaceConverterCreateFunc func;
g_return_val_if_fail(meta != NULL, NULL);
func = (GstSurfaceConverterCreateFunc)
gst_vaapi_video_meta_get_surface_converter(meta);
return func ? func(surface, type, dest) : NULL;
}
static void
gst_vaapi_video_buffer_class_init(GstVaapiVideoBufferClass *klass)
{
GstSurfaceBufferClass * const surface_class =
GST_SURFACE_BUFFER_CLASS(klass);
surface_class->create_converter = gst_vaapi_video_buffer_create_converter;
}
static void
gst_vaapi_video_buffer_init(GstVaapiVideoBuffer *buffer)
{
}
static inline GstBuffer *
gst_surface_buffer_new(void)
{
return GST_BUFFER_CAST(gst_mini_object_new(GST_VAAPI_TYPE_VIDEO_BUFFER));
}
#endif
static GFunc
get_surface_converter(GstVaapiDisplay *display)
{
GFunc func;
switch (gst_vaapi_display_get_display_type(display)) {
#if USE_X11 && !GST_CHECK_VERSION(1,1,0)
case GST_VAAPI_DISPLAY_TYPE_X11:
func = (GFunc)gst_vaapi_video_converter_x11_new;
break;
#endif
#if USE_GLX && !GST_CHECK_VERSION(1,1,0)
case GST_VAAPI_DISPLAY_TYPE_GLX:
func = (GFunc)gst_vaapi_video_converter_glx_new;
break;
#endif
default:
func = NULL;
break;
}
return func;
}
static GstBuffer *
new_vbuffer(GstVaapiVideoMeta *meta)
{
GstBuffer *buffer;
g_return_val_if_fail(meta != NULL, NULL);
gst_vaapi_video_meta_set_surface_converter(meta,
get_surface_converter(gst_vaapi_video_meta_get_display(meta)));
buffer = gst_surface_buffer_new();
if (buffer)
gst_buffer_set_vaapi_video_meta(buffer, meta);
gst_vaapi_video_meta_unref(meta);
return buffer;
}
GstBuffer *
gst_vaapi_video_buffer_new(GstVaapiVideoMeta *meta)
{
g_return_val_if_fail(meta != NULL, NULL);
return new_vbuffer(gst_vaapi_video_meta_ref(meta));
}
GstBuffer *
gst_vaapi_video_buffer_new_empty(void)
{
return gst_surface_buffer_new();
}
GstBuffer *
gst_vaapi_video_buffer_new_from_pool(GstVaapiVideoPool *pool)
{
return new_vbuffer(gst_vaapi_video_meta_new_from_pool(pool));
}
GstBuffer *
gst_vaapi_video_buffer_new_from_buffer(GstBuffer *buffer)
{
GstVaapiVideoMeta * const meta = gst_buffer_get_vaapi_video_meta(buffer);
return meta ? new_vbuffer(gst_vaapi_video_meta_ref(meta)) : NULL;
}
GstBuffer *
gst_vaapi_video_buffer_new_with_image(GstVaapiImage *image)
{
return new_vbuffer(gst_vaapi_video_meta_new_with_image(image));
}
GstBuffer *
gst_vaapi_video_buffer_new_with_surface(GstVaapiSurface *surface)
{
return new_vbuffer(gst_vaapi_video_meta_new_with_surface(surface));
}
GstBuffer *
gst_vaapi_video_buffer_new_with_surface_proxy(GstVaapiSurfaceProxy *proxy)
{
return new_vbuffer(gst_vaapi_video_meta_new_with_surface_proxy(proxy));
}