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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e712abba11
Allow plain gst_buffer_map() interface to work with gstreamer-vaapi video buffers, i.e. expose the underlying GstVaapiSurfaceProxy to the caller. This is the only sensible enough thing to do in this mode as the underlying surface pixels need to be extracted through an explicit call to the gst_video_frame_map() function instead. A possible use-case of this is to implement a "handoff" signal handler to fakesink or identity element for further processing.
148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/*
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* gstvaapivideomemory.h - Gstreamer/VA video memory
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*
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* Copyright (C) 2013 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_VIDEO_MEMORY_H
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#define GST_VAAPI_VIDEO_MEMORY_H
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#include <gst/gstallocator.h>
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#include <gst/video/video-info.h>
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#include <gst/vaapi/gstvaapidisplay.h>
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#include "gstvaapivideometa.h"
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G_BEGIN_DECLS
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typedef struct _GstVaapiVideoMemory GstVaapiVideoMemory;
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typedef struct _GstVaapiVideoAllocator GstVaapiVideoAllocator;
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typedef struct _GstVaapiVideoAllocatorClass GstVaapiVideoAllocatorClass;
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/* ------------------------------------------------------------------------ */
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/* --- GstVaapiVideoMemory --- */
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/* ------------------------------------------------------------------------ */
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#define GST_VAAPI_VIDEO_MEMORY_CAST(mem) \
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((GstVaapiVideoMemory *)(mem))
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#define GST_VAAPI_VIDEO_MEMORY_NAME "GstVaapiVideoMemory"
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/**
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* GstVaapiVideoMemoryMapType:
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* @GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE: map with gst_buffer_map()
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* as a whole and return a #GstVaapiSurfaceProxy
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* @GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_PLANAR: map individual plane with
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* gst_video_frame_map()
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*
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* The set of all #GstVaapiVideoMemory map types.
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*/
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typedef enum {
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GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE = 1,
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GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_PLANAR
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} GstVaapiVideoMemoryMapType;
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/**
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* GstVaapiVideoMemory:
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*
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* A VA video memory object holder, including VA surfaces, images and
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* proxies.
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*/
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struct _GstVaapiVideoMemory {
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GstMemory parent_instance;
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/*< private >*/
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GstVaapiSurfaceProxy *proxy;
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const GstVideoInfo *surface_info;
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GstVaapiSurface *surface;
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const GstVideoInfo *image_info;
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GstVaapiImage *image;
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GstVaapiVideoMeta *meta;
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guint map_type;
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gint map_count;
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gboolean use_direct_rendering;
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};
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G_GNUC_INTERNAL
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GstMemory *
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gst_vaapi_video_memory_new(GstAllocator *allocator, GstVaapiVideoMeta *meta);
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G_GNUC_INTERNAL
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gboolean
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gst_video_meta_map_vaapi_memory(GstVideoMeta *meta, guint plane,
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GstMapInfo *info, gpointer *data, gint *stride, GstMapFlags flags);
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G_GNUC_INTERNAL
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gboolean
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gst_video_meta_unmap_vaapi_memory(GstVideoMeta *meta, guint plane,
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GstMapInfo *info);
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/* ------------------------------------------------------------------------ */
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/* --- GstVaapiVideoAllocator --- */
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/* ------------------------------------------------------------------------ */
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#define GST_VAAPI_VIDEO_ALLOCATOR_CAST(allocator) \
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((GstVaapiVideoAllocator *)(allocator))
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#define GST_VAAPI_TYPE_VIDEO_ALLOCATOR \
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(gst_vaapi_video_allocator_get_type())
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#define GST_VAAPI_VIDEO_ALLOCATOR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), \
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GST_VAAPI_TYPE_VIDEO_ALLOCATOR, \
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GstVaapiVideoAllocator))
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#define GST_VAAPI_IS_VIDEO_ALLOCATOR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_VIDEO_ALLOCATOR))
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#define GST_VAAPI_VIDEO_ALLOCATOR_NAME "GstVaapiVideoAllocator"
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/**
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* GstVaapiVideoAllocator:
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*
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* A VA video memory allocator object.
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*/
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struct _GstVaapiVideoAllocator {
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GstAllocator parent_instance;
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/*< private >*/
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GstVideoInfo video_info;
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GstVideoInfo surface_info;
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GstVideoInfo image_info;
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gboolean has_direct_rendering;
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};
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/**
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* GstVaapiVideoAllocatorClass:
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*
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* A VA video memory allocator class.
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*/
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struct _GstVaapiVideoAllocatorClass {
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GstAllocatorClass parent_class;
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};
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G_GNUC_INTERNAL
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GType
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gst_vaapi_video_allocator_get_type(void) G_GNUC_CONST;
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G_GNUC_INTERNAL
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GstAllocator *
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gst_vaapi_video_allocator_new(GstVaapiDisplay *display, GstCaps *caps);
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G_END_DECLS
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#endif /* GST_VAAPI_VIDEO_MEMORY_H */
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