2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVUTIL_HWCONTEXT_INTERNAL_H
20 #define AVUTIL_HWCONTEXT_INTERNAL_H
25 #include "hwcontext.h"
29 typedef struct HWContextType {
30 enum AVHWDeviceType type;
34 * An array of pixel formats supported by the AVHWFramesContext instances
35 * Terminated by AV_PIX_FMT_NONE.
37 const enum AVPixelFormat *pix_fmts;
40 * size of the public hardware-specific context,
41 * i.e. AVHWDeviceContext.hwctx
43 size_t device_hwctx_size;
45 * size of the private data, i.e.
46 * AVHWDeviceInternal.priv
48 size_t device_priv_size;
51 * Size of the hardware-specific device configuration.
52 * (Used to query hwframe constraints.)
54 size_t device_hwconfig_size;
57 * size of the public frame pool hardware-specific context,
58 * i.e. AVHWFramesContext.hwctx
60 size_t frames_hwctx_size;
62 * size of the private data, i.e.
63 * AVHWFramesInternal.priv
65 size_t frames_priv_size;
67 int (*device_init)(AVHWDeviceContext *ctx);
68 void (*device_uninit)(AVHWDeviceContext *ctx);
70 int (*frames_get_constraints)(AVHWDeviceContext *ctx,
72 AVHWFramesConstraints *constraints);
74 int (*frames_init)(AVHWFramesContext *ctx);
75 void (*frames_uninit)(AVHWFramesContext *ctx);
77 int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame);
78 int (*transfer_get_formats)(AVHWFramesContext *ctx,
79 enum AVHWFrameTransferDirection dir,
80 enum AVPixelFormat **formats);
81 int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst,
83 int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst,
87 struct AVHWDeviceInternal {
88 const HWContextType *hw_type;
92 struct AVHWFramesInternal {
93 const HWContextType *hw_type;
96 AVBufferPool *pool_internal;
99 extern const HWContextType ff_hwcontext_type_cuda;
100 extern const HWContextType ff_hwcontext_type_vaapi;
101 extern const HWContextType ff_hwcontext_type_vdpau;
103 #endif /* AVUTIL_HWCONTEXT_INTERNAL_H */