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167 lines
5.7 KiB
167 lines
5.7 KiB
/* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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_INTERNAL_H |
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#define AVUTIL_HWCONTEXT_INTERNAL_H |
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#include <stddef.h> |
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#include "buffer.h" |
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#include "hwcontext.h" |
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#include "frame.h" |
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#include "pixfmt.h" |
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typedef struct HWContextType { |
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enum AVHWDeviceType type; |
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const char *name; |
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/** |
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* An array of pixel formats supported by the AVHWFramesContext instances |
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* Terminated by AV_PIX_FMT_NONE. |
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*/ |
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const enum AVPixelFormat *pix_fmts; |
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/** |
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* size of the public hardware-specific context, |
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* i.e. AVHWDeviceContext.hwctx |
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*/ |
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size_t device_hwctx_size; |
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/** |
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* size of the private data, i.e. |
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* AVHWDeviceInternal.priv |
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*/ |
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size_t device_priv_size; |
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/** |
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* Size of the hardware-specific device configuration. |
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* (Used to query hwframe constraints.) |
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*/ |
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size_t device_hwconfig_size; |
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/** |
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* size of the public frame pool hardware-specific context, |
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* i.e. AVHWFramesContext.hwctx |
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*/ |
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size_t frames_hwctx_size; |
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/** |
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* size of the private data, i.e. |
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* AVHWFramesInternal.priv |
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*/ |
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size_t frames_priv_size; |
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int (*device_create)(AVHWDeviceContext *ctx, const char *device, |
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AVDictionary *opts, int flags); |
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int (*device_derive)(AVHWDeviceContext *dst_ctx, |
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AVHWDeviceContext *src_ctx, int flags); |
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int (*device_init)(AVHWDeviceContext *ctx); |
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void (*device_uninit)(AVHWDeviceContext *ctx); |
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int (*frames_get_constraints)(AVHWDeviceContext *ctx, |
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const void *hwconfig, |
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AVHWFramesConstraints *constraints); |
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int (*frames_init)(AVHWFramesContext *ctx); |
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void (*frames_uninit)(AVHWFramesContext *ctx); |
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int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame); |
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int (*transfer_get_formats)(AVHWFramesContext *ctx, |
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enum AVHWFrameTransferDirection dir, |
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enum AVPixelFormat **formats); |
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int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst, |
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const AVFrame *src); |
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int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst, |
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const AVFrame *src); |
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int (*map_to)(AVHWFramesContext *ctx, AVFrame *dst, |
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const AVFrame *src, int flags); |
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int (*map_from)(AVHWFramesContext *ctx, AVFrame *dst, |
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const AVFrame *src, int flags); |
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int (*frames_derive_to)(AVHWFramesContext *dst_ctx, |
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AVHWFramesContext *src_ctx, int flags); |
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int (*frames_derive_from)(AVHWFramesContext *dst_ctx, |
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AVHWFramesContext *src_ctx, int flags); |
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} HWContextType; |
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struct AVHWDeviceInternal { |
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const HWContextType *hw_type; |
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void *priv; |
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/** |
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* For a derived device, a reference to the original device |
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* context it was derived from. |
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*/ |
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AVBufferRef *source_device; |
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}; |
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struct AVHWFramesInternal { |
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const HWContextType *hw_type; |
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void *priv; |
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AVBufferPool *pool_internal; |
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/** |
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* For a derived context, a reference to the original frames |
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* context it was derived from. |
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*/ |
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AVBufferRef *source_frames; |
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/** |
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* Flags to apply to the mapping from the source to the derived |
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* frame context when trying to allocate in the derived context. |
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*/ |
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int source_allocation_map_flags; |
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}; |
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typedef struct HWMapDescriptor { |
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/** |
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* A reference to the original source of the mapping. |
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*/ |
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AVFrame *source; |
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/** |
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* A reference to the hardware frames context in which this |
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* mapping was made. May be the same as source->hw_frames_ctx, |
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* but need not be. |
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*/ |
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AVBufferRef *hw_frames_ctx; |
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/** |
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* Unmap function. |
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*/ |
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void (*unmap)(AVHWFramesContext *ctx, |
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struct HWMapDescriptor *hwmap); |
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/** |
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* Hardware-specific private data associated with the mapping. |
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*/ |
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void *priv; |
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} HWMapDescriptor; |
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int ff_hwframe_map_create(AVBufferRef *hwframe_ref, |
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AVFrame *dst, const AVFrame *src, |
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void (*unmap)(AVHWFramesContext *ctx, |
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HWMapDescriptor *hwmap), |
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void *priv); |
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extern const HWContextType ff_hwcontext_type_cuda; |
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extern const HWContextType ff_hwcontext_type_d3d11va; |
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extern const HWContextType ff_hwcontext_type_dxva2; |
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extern const HWContextType ff_hwcontext_type_qsv; |
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extern const HWContextType ff_hwcontext_type_vaapi; |
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extern const HWContextType ff_hwcontext_type_vdpau; |
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#endif /* AVUTIL_HWCONTEXT_INTERNAL_H */
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