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100 lines
3 KiB
C
100 lines
3 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_HWCONTEXT_OPENCL_H
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#define AVUTIL_HWCONTEXT_OPENCL_H
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#ifdef __APPLE__
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#include <OpenCL/cl.h>
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#else
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#include <CL/cl.h>
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#endif
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#include "frame.h"
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/**
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* @file
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* API-specific header for AV_HWDEVICE_TYPE_OPENCL.
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*
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* Pools allocated internally are always dynamic, and are primarily intended
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* to be used in OpenCL-only cases. If interoperation is required, it is
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* typically required to allocate frames in the other API and then map the
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* frames context to OpenCL with av_hwframe_ctx_create_derived().
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*/
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/**
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* OpenCL frame descriptor for pool allocation.
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*
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* In user-allocated pools, AVHWFramesContext.pool must return AVBufferRefs
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* with the data pointer pointing at an object of this type describing the
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* planes of the frame.
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*/
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typedef struct AVOpenCLFrameDescriptor {
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/**
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* Number of planes in the frame.
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*/
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int nb_planes;
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/**
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* OpenCL image2d objects for each plane of the frame.
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*/
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cl_mem planes[AV_NUM_DATA_POINTERS];
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} AVOpenCLFrameDescriptor;
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/**
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* OpenCL device details.
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*
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* Allocated as AVHWDeviceContext.hwctx
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*/
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typedef struct AVOpenCLDeviceContext {
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/**
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* The primary device ID of the device. If multiple OpenCL devices
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* are associated with the context then this is the one which will
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* be used for all operations internal to FFmpeg.
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*/
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cl_device_id device_id;
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/**
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* The OpenCL context which will contain all operations and frames on
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* this device.
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*/
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cl_context context;
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/**
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* The default command queue for this device, which will be used by all
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* frames contexts which do not have their own command queue. If not
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* intialised by the user, a default queue will be created on the
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* primary device.
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*/
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cl_command_queue command_queue;
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} AVOpenCLDeviceContext;
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/**
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* OpenCL-specific data associated with a frame pool.
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*
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* Allocated as AVHWFramesContext.hwctx.
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*/
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typedef struct AVOpenCLFramesContext {
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/**
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* The command queue used for internal asynchronous operations on this
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* device (av_hwframe_transfer_data(), av_hwframe_map()).
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*
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* If this is not set, the command queue from the associated device is
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* used instead.
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*/
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cl_command_queue command_queue;
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} AVOpenCLFramesContext;
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#endif /* AVUTIL_HWCONTEXT_OPENCL_H */
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