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 public frame pool hardware-specific context,
52 * i.e. AVHWFramesContext.hwctx
54 size_t frames_hwctx_size;
56 * size of the private data, i.e.
57 * AVHWFramesInternal.priv
59 size_t frames_priv_size;
61 int (*device_init)(AVHWDeviceContext *ctx);
62 void (*device_uninit)(AVHWDeviceContext *ctx);
64 int (*frames_init)(AVHWFramesContext *ctx);
65 void (*frames_uninit)(AVHWFramesContext *ctx);
67 int (*frames_get_buffer)(AVHWFramesContext *ctx, AVFrame *frame);
68 int (*transfer_get_formats)(AVHWFramesContext *ctx,
69 enum AVHWFrameTransferDirection dir,
70 enum AVPixelFormat **formats);
71 int (*transfer_data_to)(AVHWFramesContext *ctx, AVFrame *dst,
73 int (*transfer_data_from)(AVHWFramesContext *ctx, AVFrame *dst,
77 struct AVHWDeviceInternal {
78 const HWContextType *hw_type;
82 struct AVHWFramesInternal {
83 const HWContextType *hw_type;
86 AVBufferPool *pool_internal;
89 extern const HWContextType ff_hwcontext_type_cuda;
90 extern const HWContextType ff_hwcontext_type_vdpau;
92 #endif /* AVUTIL_HWCONTEXT_INTERNAL_H */