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1 /*
2  * DXVA2 HW acceleration
3  *
4  * copyright (c) 2010 Laurent Aimar
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_DXVA2_INTERNAL_H
24 #define AVCODEC_DXVA2_INTERNAL_H
25 
26 #define COBJMACROS
27 
28 #include "config.h"
29 
30 /* define the proper COM entries before forcing desktop APIs */
31 #include <objbase.h>
32 
33 #if CONFIG_DXVA2
34 #include "dxva2.h"
35 #include "libavutil/hwcontext_dxva2.h"
36 #endif
37 #if CONFIG_D3D11VA
38 #include "d3d11va.h"
39 #include "libavutil/hwcontext_d3d11va.h"
40 #endif
41 #if HAVE_DXVA_H
42 /* When targeting WINAPI_FAMILY_PHONE_APP or WINAPI_FAMILY_APP, dxva.h
43  * defines nothing. Force the struct definitions to be visible. */
44 #undef WINAPI_FAMILY
45 #define WINAPI_FAMILY WINAPI_FAMILY_DESKTOP_APP
46 #undef _CRT_BUILD_DESKTOP_APP
47 #define _CRT_BUILD_DESKTOP_APP 0
48 #include <dxva.h>
49 #endif
50 
51 #include "libavutil/hwcontext.h"
52 
53 #include "avcodec.h"
54 #include "internal.h"
55 
56 typedef void DECODER_BUFFER_DESC;
57 
58 typedef union {
59 #if CONFIG_D3D11VA
60     struct AVD3D11VAContext  d3d11va;
61 #endif
62 #if CONFIG_DXVA2
63     struct dxva_context      dxva2;
64 #endif
65 } AVDXVAContext;
66 
67 typedef struct FFDXVASharedContext {
68     AVBufferRef *decoder_ref;
69 
70     // FF_DXVA2_WORKAROUND_* flags
71     uint64_t workaround;
72 
73     // E.g. AV_PIX_FMT_D3D11 (same as AVCodecContext.pix_fmt, except during init)
74     enum AVPixelFormat pix_fmt;
75 
76     AVHWDeviceContext *device_ctx;
77 
78 #if CONFIG_D3D11VA
79     ID3D11VideoDecoder             *d3d11_decoder;
80     D3D11_VIDEO_DECODER_CONFIG      d3d11_config;
81     ID3D11VideoDecoderOutputView  **d3d11_views;
82     int                          nb_d3d11_views;
83     ID3D11Texture2D                *d3d11_texture;
84 #endif
85 
86 #if CONFIG_DXVA2
87     IDirectXVideoDecoder           *dxva2_decoder;
88     IDirectXVideoDecoderService    *dxva2_service;
89     DXVA2_ConfigPictureDecode       dxva2_config;
90 #endif
91 
92     // Legacy (but used by code outside of setup)
93     // In generic mode, DXVA_CONTEXT() will return a pointer to this.
94     AVDXVAContext ctx;
95 } FFDXVASharedContext;
96 
97 #define DXVA_SHARED_CONTEXT(avctx) ((FFDXVASharedContext *)((avctx)->internal->hwaccel_priv_data))
98 
99 #define DXVA_CONTEXT(avctx) (AVDXVAContext *)((avctx)->hwaccel_context ? (avctx)->hwaccel_context : (&(DXVA_SHARED_CONTEXT(avctx)->ctx)))
100 
101 #define D3D11VA_CONTEXT(ctx) (&ctx->d3d11va)
102 #define DXVA2_CONTEXT(ctx)   (&ctx->dxva2)
103 
104 #if CONFIG_D3D11VA && CONFIG_DXVA2
105 #define DXVA_CONTEXT_WORKAROUND(avctx, ctx)     (ff_dxva2_is_d3d11(avctx) ? ctx->d3d11va.workaround : ctx->dxva2.workaround)
106 #define DXVA_CONTEXT_COUNT(avctx, ctx)          (ff_dxva2_is_d3d11(avctx) ? ctx->d3d11va.surface_count : ctx->dxva2.surface_count)
107 #define DXVA_CONTEXT_DECODER(avctx, ctx)        (ff_dxva2_is_d3d11(avctx) ? (void *)ctx->d3d11va.decoder : (void *)ctx->dxva2.decoder)
108 #define DXVA_CONTEXT_REPORT_ID(avctx, ctx)      (*(ff_dxva2_is_d3d11(avctx) ? &ctx->d3d11va.report_id : &ctx->dxva2.report_id))
109 #define DXVA_CONTEXT_CFG(avctx, ctx)            (ff_dxva2_is_d3d11(avctx) ? (void *)ctx->d3d11va.cfg : (void *)ctx->dxva2.cfg)
110 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (ff_dxva2_is_d3d11(avctx) ? ctx->d3d11va.cfg->ConfigBitstreamRaw : ctx->dxva2.cfg->ConfigBitstreamRaw)
111 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (ff_dxva2_is_d3d11(avctx) ? ctx->d3d11va.cfg->ConfigIntraResidUnsigned : ctx->dxva2.cfg->ConfigIntraResidUnsigned)
112 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (ff_dxva2_is_d3d11(avctx) ? ctx->d3d11va.cfg->ConfigResidDiffAccelerator : ctx->dxva2.cfg->ConfigResidDiffAccelerator)
113 #define DXVA_CONTEXT_VALID(avctx, ctx)          (DXVA_CONTEXT_DECODER(avctx, ctx) && \
114                                                  DXVA_CONTEXT_CFG(avctx, ctx)     && \
115                                                  (ff_dxva2_is_d3d11(avctx) || ctx->dxva2.surface_count))
116 #elif CONFIG_DXVA2
117 #define DXVA_CONTEXT_WORKAROUND(avctx, ctx)     (ctx->dxva2.workaround)
118 #define DXVA_CONTEXT_COUNT(avctx, ctx)          (ctx->dxva2.surface_count)
119 #define DXVA_CONTEXT_DECODER(avctx, ctx)        (ctx->dxva2.decoder)
120 #define DXVA_CONTEXT_REPORT_ID(avctx, ctx)      (*(&ctx->dxva2.report_id))
121 #define DXVA_CONTEXT_CFG(avctx, ctx)            (ctx->dxva2.cfg)
122 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (ctx->dxva2.cfg->ConfigBitstreamRaw)
123 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (ctx->dxva2.cfg->ConfigIntraResidUnsigned)
124 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (ctx->dxva2.cfg->ConfigResidDiffAccelerator)
125 #define DXVA_CONTEXT_VALID(avctx, ctx)          (ctx->dxva2.decoder && ctx->dxva2.cfg && ctx->dxva2.surface_count)
126 #elif CONFIG_D3D11VA
127 #define DXVA_CONTEXT_WORKAROUND(avctx, ctx)     (ctx->d3d11va.workaround)
128 #define DXVA_CONTEXT_COUNT(avctx, ctx)          (ctx->d3d11va.surface_count)
129 #define DXVA_CONTEXT_DECODER(avctx, ctx)        (ctx->d3d11va.decoder)
130 #define DXVA_CONTEXT_REPORT_ID(avctx, ctx)      (*(&ctx->d3d11va.report_id))
131 #define DXVA_CONTEXT_CFG(avctx, ctx)            (ctx->d3d11va.cfg)
132 #define DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx)  (ctx->d3d11va.cfg->ConfigBitstreamRaw)
133 #define DXVA_CONTEXT_CFG_INTRARESID(avctx, ctx) (ctx->d3d11va.cfg->ConfigIntraResidUnsigned)
134 #define DXVA_CONTEXT_CFG_RESIDACCEL(avctx, ctx) (ctx->d3d11va.cfg->ConfigResidDiffAccelerator)
135 #define DXVA_CONTEXT_VALID(avctx, ctx)          (ctx->d3d11va.decoder && ctx->d3d11va.cfg)
136 #endif
137 
138 unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,
139                                     const AVDXVAContext *,
140                                     const AVFrame *frame);
141 
142 int ff_dxva2_commit_buffer(AVCodecContext *, AVDXVAContext *,
143                            DECODER_BUFFER_DESC *,
144                            unsigned type, const void *data, unsigned size,
145                            unsigned mb_count);
146 
147 
148 int ff_dxva2_common_end_frame(AVCodecContext *, AVFrame *,
149                               const void *pp, unsigned pp_size,
150                               const void *qm, unsigned qm_size,
151                               int (*commit_bs_si)(AVCodecContext *,
152                                                   DECODER_BUFFER_DESC *bs,
153                                                   DECODER_BUFFER_DESC *slice));
154 
155 int ff_dxva2_decode_init(AVCodecContext *avctx);
156 
157 int ff_dxva2_decode_uninit(AVCodecContext *avctx);
158 
159 int ff_dxva2_common_frame_params(AVCodecContext *avctx,
160                                  AVBufferRef *hw_frames_ctx);
161 
162 int ff_dxva2_is_d3d11(const AVCodecContext *avctx);
163 
164 #endif /* AVCODEC_DXVA2_INTERNAL_H */
165