1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Direct3D 12 VP9 HW acceleration
*
* copyright (c) 2022-2023 Wu Jianhua <toqsxw@outlook.com>
*
* 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
*/
#include "config_components.h"
#include "libavutil/avassert.h"
#include "libavutil/pixdesc.h"
#include "libavutil/hwcontext_d3d12va_internal.h"
#include "vp9shared.h"
#include "dxva2_internal.h"
#include "d3d12va_decode.h"
typedef struct VP9DecodePictureContext {
DXVA_PicParams_VP9 pp;
DXVA_Slice_VPx_Short slice;
const uint8_t *bitstream;
unsigned bitstream_size;
} VP9DecodePictureContext;
static void fill_slice_short(DXVA_Slice_VPx_Short *slice, unsigned position, unsigned size)
{
memset(slice, 0, sizeof(*slice));
slice->BSNALunitDataLocation = position;
slice->SliceBytesInBuffer = size;
slice->wBadSliceChopping = 0;
}
static int d3d12va_vp9_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
{
const VP9SharedContext *h = avctx->priv_data;
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
VP9DecodePictureContext *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
if (!ctx)
return -1;
av_assert0(ctx_pic);
ctx->used_mask = 0;
if (ff_dxva2_vp9_fill_picture_parameters(avctx, (AVDXVAContext *)ctx, &ctx_pic->pp) < 0)
return -1;
ctx_pic->bitstream_size = 0;
ctx_pic->bitstream = NULL;
return 0;
}
static int d3d12va_vp9_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
{
const VP9SharedContext *h = avctx->priv_data;
VP9DecodePictureContext *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
unsigned position;
if (!ctx_pic->bitstream)
ctx_pic->bitstream = buffer;
ctx_pic->bitstream_size += size;
position = buffer - ctx_pic->bitstream;
fill_slice_short(&ctx_pic->slice, position, size);
return 0;
}
static int update_input_arguments(AVCodecContext *avctx, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *input_args, ID3D12Resource *buffer)
{
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
AVHWFramesContext *frames_ctx = D3D12VA_FRAMES_CONTEXT(avctx);
AVD3D12VAFramesContext *frames_hwctx = frames_ctx->hwctx;
const VP9SharedContext *h = avctx->priv_data;
VP9DecodePictureContext *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
uint8_t *mapped_data;
D3D12_VIDEO_DECODE_FRAME_ARGUMENT *args;
if (FAILED(ID3D12Resource_Map(buffer, 0, NULL, &mapped_data))) {
av_log(avctx, AV_LOG_ERROR, "Failed to map D3D12 Buffer resource!\n");
return AVERROR(EINVAL);
}
args = &input_args->FrameArguments[input_args->NumFrameArguments++];
args->Type = D3D12_VIDEO_DECODE_ARGUMENT_TYPE_SLICE_CONTROL;
args->Size = sizeof(ctx_pic->slice);
args->pData = &ctx_pic->slice;
memcpy(mapped_data, ctx_pic->bitstream, ctx_pic->slice.SliceBytesInBuffer);
ID3D12Resource_Unmap(buffer, 0, NULL);
input_args->CompressedBitstream = (D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM){
.pBuffer = buffer,
.Offset = 0,
.Size = ctx_pic->slice.SliceBytesInBuffer,
};
return 0;
}
static int d3d12va_vp9_end_frame(AVCodecContext *avctx)
{
VP9SharedContext *h = avctx->priv_data;
VP9DecodePictureContext *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
if (ctx_pic->bitstream_size <= 0)
return -1;
return ff_d3d12va_common_end_frame(avctx, h->frames[CUR_FRAME].tf.f,
&ctx_pic->pp, sizeof(ctx_pic->pp), NULL, 0, update_input_arguments);
}
static int d3d12va_vp9_decode_init(AVCodecContext *avctx)
{
D3D12VADecodeContext *ctx = D3D12VA_DECODE_CONTEXT(avctx);
DXVA_PicParams_VP9 pp;
switch (avctx->profile) {
case FF_PROFILE_VP9_2:
case FF_PROFILE_VP9_3:
ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_VP9_10BIT_PROFILE2;
break;
case FF_PROFILE_VP9_0:
case FF_PROFILE_VP9_1:
default:
ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_VP9;
break;
};
ctx->max_num_ref = FF_ARRAY_ELEMS(pp.ref_frame_map) + 1;
return ff_d3d12va_decode_init(avctx);
}
#if CONFIG_VP9_D3D12VA_HWACCEL
const FFHWAccel ff_vp9_d3d12va_hwaccel = {
.p.name = "vp9_d3d12va",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_VP9,
.p.pix_fmt = AV_PIX_FMT_D3D12,
.init = d3d12va_vp9_decode_init,
.uninit = ff_d3d12va_decode_uninit,
.start_frame = d3d12va_vp9_start_frame,
.decode_slice = d3d12va_vp9_decode_slice,
.end_frame = d3d12va_vp9_end_frame,
.frame_params = ff_d3d12va_common_frame_params,
.frame_priv_data_size = sizeof(VP9DecodePictureContext),
.priv_data_size = sizeof(D3D12VADecodeContext),
};
#endif
|
