summaryrefslogtreecommitdiff
path: root/libavcodec/dxva2.c
blob: 8b0e6869ae8a167741bb8dc820e5bb0825bda9a6 (plain)
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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
/*
 * DXVA2 HW acceleration.
 *
 * copyright (c) 2010 Laurent Aimar
 *
 * This file is part of Libav.
 *
 * Libav 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.
 *
 * Libav 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 Libav; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <assert.h>
#include <string.h>

#include "libavutil/log.h"
#include "libavutil/time.h"

#include "avcodec.h"
#include "dxva2_internal.h"

void *ff_dxva2_get_surface(const AVFrame *frame)
{
    return frame->data[3];
}

unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,
                                    const AVDXVAContext *ctx,
                                    const AVFrame *frame)
{
    void *surface = ff_dxva2_get_surface(frame);
    unsigned i;

    for (i = 0; i < DXVA_CONTEXT_COUNT(avctx, ctx); i++)
        if (DXVA_CONTEXT_SURFACE(avctx, ctx, i) == surface)
            return i;

    assert(0);
    return 0;
}

int ff_dxva2_commit_buffer(AVCodecContext *avctx,
                           AVDXVAContext *ctx,
                           DECODER_BUFFER_DESC *dsc,
                           unsigned type, const void *data, unsigned size,
                           unsigned mb_count)
{
    void     *dxva_data;
    unsigned dxva_size;
    int      result;
    HRESULT hr;

#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
        hr = ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
                                                 D3D11VA_CONTEXT(ctx)->decoder,
                                                 type,
                                                 &dxva_size, &dxva_data);
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
        hr = IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder, type,
                                            &dxva_data, &dxva_size);
#endif
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to get a buffer for %u: 0x%lx\n",
               type, hr);
        return -1;
    }
    if (size <= dxva_size) {
        memcpy(dxva_data, data, size);

#if CONFIG_D3D11VA
        if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
            D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = dsc;
            memset(dsc11, 0, sizeof(*dsc11));
            dsc11->BufferType           = type;
            dsc11->DataSize             = size;
            dsc11->NumMBsInBuffer       = mb_count;
        }
#endif
#if CONFIG_DXVA2
        if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
            DXVA2_DecodeBufferDesc *dsc2 = dsc;
            memset(dsc2, 0, sizeof(*dsc2));
            dsc2->CompressedBufferType = type;
            dsc2->DataSize             = size;
            dsc2->NumMBsInBuffer       = mb_count;
        }
#endif

        result = 0;
    } else {
        av_log(avctx, AV_LOG_ERROR, "Buffer for type %u was too small\n", type);
        result = -1;
    }

#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
        hr = ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type);
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
        hr = IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type);
#endif
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR,
               "Failed to release buffer type %u: 0x%lx\n",
               type, hr);
        result = -1;
    }
    return result;
}

int ff_dxva2_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
                              const void *pp, unsigned pp_size,
                              const void *qm, unsigned qm_size,
                              int (*commit_bs_si)(AVCodecContext *,
                                                  DECODER_BUFFER_DESC *bs,
                                                  DECODER_BUFFER_DESC *slice))
{
    AVDXVAContext *ctx = avctx->hwaccel_context;
    unsigned               buffer_count = 0;
#if CONFIG_D3D11VA
    D3D11_VIDEO_DECODER_BUFFER_DESC buffer11[4];
#endif
#if CONFIG_DXVA2
    DXVA2_DecodeBufferDesc          buffer2[4];
#endif
    DECODER_BUFFER_DESC             *buffer,*buffer_slice;
    int result, runs = 0;
    HRESULT hr;
    unsigned type;

    do {
#if CONFIG_D3D11VA
        if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
            if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
                WaitForSingleObjectEx(D3D11VA_CONTEXT(ctx)->context_mutex, INFINITE, FALSE);
            hr = ID3D11VideoContext_DecoderBeginFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder,
                                                      ff_dxva2_get_surface(frame),
                                                      0, NULL);
        }
#endif
#if CONFIG_DXVA2
        if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
            hr = IDirectXVideoDecoder_BeginFrame(DXVA2_CONTEXT(ctx)->decoder,
                                                 ff_dxva2_get_surface(frame),
                                                 NULL);
#endif
        if (hr == E_PENDING)
            av_usleep(2000);
    } while (hr == E_PENDING && ++runs < 50);

    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to begin frame: 0x%lx\n", hr);
#if CONFIG_D3D11VA
        if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
            if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
                ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
#endif
        return -1;
    }

#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
        buffer = &buffer11[buffer_count];
        type = D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS;
    }
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
        buffer = &buffer2[buffer_count];
        type = DXVA2_PictureParametersBufferType;
    }
#endif
    result = ff_dxva2_commit_buffer(avctx, ctx, buffer,
                                    type,
                                    pp, pp_size, 0);
    if (result) {
        av_log(avctx, AV_LOG_ERROR,
               "Failed to add picture parameter buffer\n");
        goto end;
    }
    buffer_count++;

    if (qm_size > 0) {
#if CONFIG_D3D11VA
        if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
            buffer = &buffer11[buffer_count];
            type = D3D11_VIDEO_DECODER_BUFFER_INVERSE_QUANTIZATION_MATRIX;
        }
#endif
#if CONFIG_DXVA2
        if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
            buffer = &buffer2[buffer_count];
            type = DXVA2_InverseQuantizationMatrixBufferType;
        }
#endif
        result = ff_dxva2_commit_buffer(avctx, ctx, buffer,
                                        type,
                                        qm, qm_size, 0);
        if (result) {
            av_log(avctx, AV_LOG_ERROR,
                   "Failed to add inverse quantization matrix buffer\n");
            goto end;
        }
        buffer_count++;
    }

#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
        buffer       = &buffer11[buffer_count + 0];
        buffer_slice = &buffer11[buffer_count + 1];
    }
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
        buffer       = &buffer2[buffer_count + 0];
        buffer_slice = &buffer2[buffer_count + 1];
    }
#endif

    result = commit_bs_si(avctx,
                          buffer,
                          buffer_slice);
    if (result) {
        av_log(avctx, AV_LOG_ERROR,
               "Failed to add bitstream or slice control buffer\n");
        goto end;
    }
    buffer_count += 2;

    /* TODO Film Grain when possible */

    assert(buffer_count == 1 + (qm_size > 0) + 2);

#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
        hr = ID3D11VideoContext_SubmitDecoderBuffers(D3D11VA_CONTEXT(ctx)->video_context,
                                                     D3D11VA_CONTEXT(ctx)->decoder,
                                                     buffer_count, buffer11);
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
        DXVA2_DecodeExecuteParams exec = {
            .NumCompBuffers     = buffer_count,
            .pCompressedBuffers = buffer2,
            .pExtensionData     = NULL,
        };
        hr = IDirectXVideoDecoder_Execute(DXVA2_CONTEXT(ctx)->decoder, &exec);
    }
#endif
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to execute: 0x%lx\n", hr);
        result = -1;
    }

end:
#if CONFIG_D3D11VA
    if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
        hr = ID3D11VideoContext_DecoderEndFrame(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder);
        if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
            ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
    }
#endif
#if CONFIG_DXVA2
    if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
        hr = IDirectXVideoDecoder_EndFrame(DXVA2_CONTEXT(ctx)->decoder, NULL);
#endif
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "Failed to end frame: 0x%lx\n", hr);
        result = -1;
    }

    return result;
}