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c033f8fad2
So applications and elements implemented outside GStreamer can reuse our infrastructure Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1472>
163 lines
4.6 KiB
C
163 lines
4.6 KiB
C
/* GStreamer
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* Copyright (C) <2018-2019> Seungha Yang <seungha.yang@navercorp.com>
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_CUDA_MEMORY_H__
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#define __GST_CUDA_MEMORY_H__
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#ifndef GST_USE_UNSTABLE_API
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#warning "The Cuda library from gst-plugins-bad is unstable API and may change in future."
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#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
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#endif
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#include "cuda-prelude.h"
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#include <gst/gst.h>
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#include <gst/gstallocator.h>
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#include <gst/video/video.h>
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#include "gstcudaloader.h"
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#include "gstcudacontext.h"
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G_BEGIN_DECLS
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#define GST_TYPE_CUDA_ALLOCATOR (gst_cuda_allocator_get_type())
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#define GST_CUDA_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CUDA_ALLOCATOR,GstCudaAllocator))
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#define GST_CUDA_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_CUDA_ALLOCATOR,GstCudaAllocatorClass))
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#define GST_CUDA_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_CUDA_ALLOCATOR,GstCudaAllocatorClass))
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#define GST_IS_CUDA_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CUDA_ALLOCATOR))
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#define GST_IS_CUDA_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_CUDA_ALLOCATOR))
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/**
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* GST_CUDA_ALLOCATOR_CAST:
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*
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* Since: 1.22
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*/
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#define GST_CUDA_ALLOCATOR_CAST(obj) ((GstCudaAllocator *)(obj))
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/**
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* GST_CUDA_MEMORY_CAST:
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*
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* Since: 1.22
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*/
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#define GST_CUDA_MEMORY_CAST(mem) ((GstCudaMemory *) (mem))
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/**
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* GstCudaAllocator:
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*
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* A #GstAllocator subclass for cuda memory
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*
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* Since: 1.22
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*/
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typedef struct _GstCudaAllocator GstCudaAllocator;
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typedef struct _GstCudaAllocatorClass GstCudaAllocatorClass;
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typedef struct _GstCudaMemory GstCudaMemory;
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typedef struct _GstCudaMemoryPrivate GstCudaMemoryPrivate;
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/**
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* GST_MAP_CUDA:
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*
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* Flag indicating that we should map the CUDA device memory
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* instead of to system memory.
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*
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* Combining #GST_MAP_CUDA with #GST_MAP_WRITE has the same semantics as though
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* you are writing to CUDA device/host memory.
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* Conversely, combining #GST_MAP_CUDA with
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* #GST_MAP_READ has the same semantics as though you are reading from
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* CUDA device/host memory
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*
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* Since: 1.22
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*/
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#define GST_MAP_CUDA (GST_MAP_FLAG_LAST << 1)
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/**
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* GST_CUDA_MEMORY_TYPE_NAME:
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*
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* Name of cuda memory type
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*
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* Since: 1.22
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*/
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#define GST_CUDA_MEMORY_TYPE_NAME "gst.cuda.memory"
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/**
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* GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY:
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*
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* Name of the caps feature for indicating the use of #GstCudaMemory
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*
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* Since: 1.22
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*/
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#define GST_CAPS_FEATURE_MEMORY_CUDA_MEMORY "memory:CUDAMemory"
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/**
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* GstCudaMemoryTransfer:
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* @GST_CUDA_MEMORY_TRANSFER_NEED_DOWNLOAD: the device memory needs downloading
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* to the staging memory
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* @GST_CUDA_MEMORY_TRANSFER_NEED_UPLOAD: the staging memory needs uploading
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* to the device memory
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*
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* Since: 1.22
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*/
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typedef enum
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{
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GST_CUDA_MEMORY_TRANSFER_NEED_DOWNLOAD = (GST_MEMORY_FLAG_LAST << 0),
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GST_CUDA_MEMORY_TRANSFER_NEED_UPLOAD = (GST_MEMORY_FLAG_LAST << 1)
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} GstCudaMemoryTransfer;
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/**
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* GstCudaMemory:
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*
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* Since: 1.22
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*/
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struct _GstCudaMemory
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{
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GstMemory mem;
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/*< public >*/
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GstCudaContext *context;
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GstVideoInfo info;
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/*< private >*/
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GstCudaMemoryPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstCudaAllocator
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{
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GstAllocator parent;
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};
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struct _GstCudaAllocatorClass
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{
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GstAllocatorClass parent_class;
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};
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GST_CUDA_API
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void gst_cuda_memory_init_once (void);
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GST_CUDA_API
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gboolean gst_is_cuda_memory (GstMemory * mem);
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GST_CUDA_API
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GType gst_cuda_allocator_get_type (void);
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GST_CUDA_API
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GstMemory * gst_cuda_allocator_alloc (GstCudaAllocator * allocator,
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GstCudaContext * context,
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const GstVideoInfo * info);
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G_END_DECLS
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#endif /* __GST_CUDA_MEMORY_H__ */
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