| /* |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg 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. |
| * |
| * FFmpeg 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVUTIL_HWCONTEXT_INTERNAL_H |
| #define AVUTIL_HWCONTEXT_INTERNAL_H |
| |
| #include <stddef.h> |
| |
| #include "buffer.h" |
| #include "hwcontext.h" |
| #include "frame.h" |
| #include "pixfmt.h" |
| |
| typedef struct HWContextType { |
| enum AVHWDeviceType type; |
| const char *name; |
| |
| /** |
| * An array of pixel formats supported by the AVHWFramesContext instances |
| * Terminated by AV_PIX_FMT_NONE. |
| */ |
| const enum AVPixelFormat *pix_fmts; |
| |
| /** |
| * size of the public hardware-specific context, |
| * i.e. AVHWDeviceContext.hwctx |
| */ |
| size_t device_hwctx_size; |
| /** |
| * size of the private data, i.e. |
| * AVHWDeviceInternal.priv |
| */ |
| size_t device_priv_size; |
| |
| /** |
| * Size of the hardware-specific device configuration. |
| * (Used to query hwframe constraints.) |
| */ |
| size_t device_hwconfig_size; |
| |
| /** |
| * size of the public frame pool hardware-specific context, |
| * i.e. AVHWFramesContext.hwctx |
| */ |
| size_t frames_hwctx_size; |
| /** |
| * size of the private data, i.e. |
| * AVHWFramesInternal.priv |
| */ |
| size_t frames_priv_size; |
| |
| int (*device_create)(AVHWDeviceContext *ctx, const char *device, |
| AVDictionary *opts, int flags); |
| |
| int (*device_init)(AVHWDeviceContext *ctx); |
| void (*device_uninit)(AVHWDeviceContext *ctx); |
| |
| int (*frames_get_constraints)(AVHWDeviceContext *ctx, |
| const void *hwconfig, |
| AVHWFramesConstraints *constraints); |
| |
| int (*frames_init)(AVHWFramesContext *ctx); |
| void (*frames_uninit)(AVHWFramesContext *ctx); |
| |
| int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame); |
| int (*transfer_get_formats)(AVHWFramesContext *ctx, |
| enum AVHWFrameTransferDirection dir, |
| enum AVPixelFormat **formats); |
| int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst, |
| const AVFrame *src); |
| int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst, |
| const AVFrame *src); |
| } HWContextType; |
| |
| struct AVHWDeviceInternal { |
| const HWContextType *hw_type; |
| void *priv; |
| }; |
| |
| struct AVHWFramesInternal { |
| const HWContextType *hw_type; |
| void *priv; |
| |
| AVBufferPool *pool_internal; |
| }; |
| |
| extern const HWContextType ff_hwcontext_type_cuda; |
| extern const HWContextType ff_hwcontext_type_dxva2; |
| extern const HWContextType ff_hwcontext_type_qsv; |
| extern const HWContextType ff_hwcontext_type_vaapi; |
| extern const HWContextType ff_hwcontext_type_vdpau; |
| |
| #endif /* AVUTIL_HWCONTEXT_INTERNAL_H */ |