aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/vdpau.c
blob: 475a56c73caa9d0010f4f54f92e3ab974517777e (plain) (blame)
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
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
/*
 * Video Decode and Presentation API for UNIX (VDPAU) is used for
 * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
 *
 * Copyright (c) 2008 NVIDIA
 *
 * 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 <limits.h>
#include "libavutil/avassert.h"
#include "avcodec.h"
#include "internal.h"
#include "h264.h"
#include "vc1.h"

#undef NDEBUG
#include <assert.h>

#include "vdpau.h"
#include "vdpau_internal.h"

/**
 * @addtogroup VDPAU_Decoding
 *
 * @{
 */

static int vdpau_error(VdpStatus status)
{
    switch (status) {
    case VDP_STATUS_OK:
        return 0;
    case VDP_STATUS_NO_IMPLEMENTATION:
        return AVERROR(ENOSYS);
    case VDP_STATUS_DISPLAY_PREEMPTED:
        return AVERROR(EIO);
    case VDP_STATUS_INVALID_HANDLE:
        return AVERROR(EBADF);
    case VDP_STATUS_INVALID_POINTER:
        return AVERROR(EFAULT);
    case VDP_STATUS_RESOURCES:
        return AVERROR(ENOBUFS);
    case VDP_STATUS_HANDLE_DEVICE_MISMATCH:
        return AVERROR(EXDEV);
    case VDP_STATUS_ERROR:
        return AVERROR(EIO);
    default:
        return AVERROR(EINVAL);
    }
}

AVVDPAUContext *av_alloc_vdpaucontext(void)
{
    return av_vdpau_alloc_context();
}

MAKE_ACCESSORS(AVVDPAUContext, vdpau_hwaccel, AVVDPAU_Render2, render2)

int av_vdpau_get_surface_parameters(AVCodecContext *avctx,
                                    VdpChromaType *type,
                                    uint32_t *width, uint32_t *height)
{
    VdpChromaType t;
    uint32_t w = avctx->coded_width;
    uint32_t h = avctx->coded_height;

    /* See <vdpau/vdpau.h> for per-type alignment constraints. */
    switch (avctx->sw_pix_fmt) {
    case AV_PIX_FMT_YUV420P:
    case AV_PIX_FMT_YUVJ420P:
        t = VDP_CHROMA_TYPE_420;
        w = (w + 1) & ~1;
        h = (h + 3) & ~3;
        break;
    case AV_PIX_FMT_YUV422P:
    case AV_PIX_FMT_YUVJ422P:
        t = VDP_CHROMA_TYPE_422;
        w = (w + 1) & ~1;
        h = (h + 1) & ~1;
        break;
    case AV_PIX_FMT_YUV444P:
    case AV_PIX_FMT_YUVJ444P:
        t = VDP_CHROMA_TYPE_444;
        h = (h + 1) & ~1;
        break;
    default:
        return AVERROR(ENOSYS);
    }

    if (type)
        *type = t;
    if (width)
        *width = w;
    if (height)
        *height = h;
    return 0;
}

int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile,
                         int level)
{
    VDPAUHWContext *hwctx = avctx->hwaccel_context;
    VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
    VdpVideoSurfaceQueryCapabilities *surface_query_caps;
    VdpDecoderQueryCapabilities *decoder_query_caps;
    VdpDecoderCreate *create;
    void *func;
    VdpStatus status;
    VdpBool supported;
    uint32_t max_level, max_mb, max_width, max_height;
    VdpChromaType type;
    uint32_t width;
    uint32_t height;

    vdctx->width            = UINT32_MAX;
    vdctx->height           = UINT32_MAX;

    if (!hwctx) {
        vdctx->device  = VDP_INVALID_HANDLE;
        av_log(avctx, AV_LOG_WARNING, "hwaccel_context has not been setup by the user application, cannot initialize\n");
        return 0;
    }

    if (hwctx->context.decoder != VDP_INVALID_HANDLE) {
        vdctx->decoder = hwctx->context.decoder;
        vdctx->render  = hwctx->context.render;
        vdctx->device  = VDP_INVALID_HANDLE;
        return 0; /* Decoder created by user */
    }
    hwctx->reset            = 0;

    vdctx->device           = hwctx->device;
    vdctx->get_proc_address = hwctx->get_proc_address;

    if (hwctx->flags & AV_HWACCEL_FLAG_IGNORE_LEVEL)
        level = 0;
    else if (level < 0)
        return AVERROR(ENOTSUP);

    if (av_vdpau_get_surface_parameters(avctx, &type, &width, &height))
        return AVERROR(ENOSYS);

    if (!(hwctx->flags & AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH) &&
        type != VDP_CHROMA_TYPE_420)
        return AVERROR(ENOSYS);

    status = vdctx->get_proc_address(vdctx->device,
                                     VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
                                     &func);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    else
        surface_query_caps = func;

    status = surface_query_caps(vdctx->device, type, &supported,
                                &max_width, &max_height);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    if (supported != VDP_TRUE ||
        max_width < width || max_height < height)
        return AVERROR(ENOTSUP);

    status = vdctx->get_proc_address(vdctx->device,
                                     VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
                                     &func);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    else
        decoder_query_caps = func;

    status = decoder_query_caps(vdctx->device, profile, &supported, &max_level,
                                &max_mb, &max_width, &max_height);
#ifdef VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE
    if (status != VDP_STATUS_OK && profile == VDP_DECODER_PROFILE_H264_CONSTRAINED_BASELINE) {
        /* Run-time backward compatibility for libvdpau 0.8 and earlier */
        profile = VDP_DECODER_PROFILE_H264_MAIN;
        status = decoder_query_caps(vdctx->device, profile, &supported,
                                    &max_level, &max_mb,
                                    &max_width, &max_height);
    }
#endif
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);

    if (supported != VDP_TRUE || max_level < level ||
        max_width < width || max_height < height)
        return AVERROR(ENOTSUP);

    status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE,
                                     &func);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    else
        create = func;

    status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER,
                                     &func);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    else
        vdctx->render = func;

    status = create(vdctx->device, profile, width, height, avctx->refs,
                    &vdctx->decoder);
    if (status == VDP_STATUS_OK) {
        vdctx->width  = avctx->coded_width;
        vdctx->height = avctx->coded_height;
    }

    return vdpau_error(status);
}

int ff_vdpau_common_uninit(AVCodecContext *avctx)
{
    VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
    VdpDecoderDestroy *destroy;
    void *func;
    VdpStatus status;

    if (vdctx->device == VDP_INVALID_HANDLE)
        return 0; /* Decoder created and destroyed by user */
    if (vdctx->width == UINT32_MAX && vdctx->height == UINT32_MAX)
        return 0;

    status = vdctx->get_proc_address(vdctx->device,
                                     VDP_FUNC_ID_DECODER_DESTROY, &func);
    if (status != VDP_STATUS_OK)
        return vdpau_error(status);
    else
        destroy = func;

    status = destroy(vdctx->decoder);
    return vdpau_error(status);
}

static int ff_vdpau_common_reinit(AVCodecContext *avctx)
{
    VDPAUHWContext *hwctx = avctx->hwaccel_context;
    VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;

    if (vdctx->device == VDP_INVALID_HANDLE)
        return 0; /* Decoder created by user */
    if (avctx->coded_width == vdctx->width &&
        avctx->coded_height == vdctx->height && !hwctx->reset)
        return 0;

    avctx->hwaccel->uninit(avctx);
    return avctx->hwaccel->init(avctx);
}

int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
                                av_unused const uint8_t *buffer,
                                av_unused uint32_t size)
{
    pic_ctx->bitstream_buffers_allocated = 0;
    pic_ctx->bitstream_buffers_used      = 0;
    pic_ctx->bitstream_buffers           = NULL;
    return 0;
}

int ff_vdpau_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
                              struct vdpau_picture_context *pic_ctx)
{
    VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
    AVVDPAUContext *hwctx = avctx->hwaccel_context;
    VdpVideoSurface surf = ff_vdpau_get_surface_id(frame);
    VdpStatus status;
    int val;

    val = ff_vdpau_common_reinit(avctx);
    if (val < 0)
        return val;

#if FF_API_BUFS_VDPAU
FF_DISABLE_DEPRECATION_WARNINGS
    av_assert0(sizeof(hwctx->info) <= sizeof(pic_ctx->info));
    memcpy(&hwctx->info, &pic_ctx->info, sizeof(hwctx->info));
    hwctx->bitstream_buffers = pic_ctx->bitstream_buffers;
    hwctx->bitstream_buffers_used = pic_ctx->bitstream_buffers_used;
    hwctx->bitstream_buffers_allocated = pic_ctx->bitstream_buffers_allocated;
FF_ENABLE_DEPRECATION_WARNINGS
#endif

    if (!hwctx->render && hwctx->render2) {
        status = hwctx->render2(avctx, frame, (void *)&pic_ctx->info,
                                pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
    } else
    status = vdctx->render(vdctx->decoder, surf, (void *)&pic_ctx->info,
                           pic_ctx->bitstream_buffers_used,
                           pic_ctx->bitstream_buffers);

    av_freep(&pic_ctx->bitstream_buffers);

#if FF_API_BUFS_VDPAU
FF_DISABLE_DEPRECATION_WARNINGS
    hwctx->bitstream_buffers = NULL;
    hwctx->bitstream_buffers_used = 0;
    hwctx->bitstream_buffers_allocated = 0;
FF_ENABLE_DEPRECATION_WARNINGS
#endif

    return vdpau_error(status);
}

#if CONFIG_H263_VDPAU_HWACCEL  || CONFIG_MPEG1_VDPAU_HWACCEL || \
    CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
    CONFIG_VC1_VDPAU_HWACCEL   || CONFIG_WMV3_VDPAU_HWACCEL
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
{
    MpegEncContext *s = avctx->priv_data;
    Picture *pic = s->current_picture_ptr;
    struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
    int val;

    val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
    if (val < 0)
        return val;

    ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
    return 0;
}
#endif

int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
                        const uint8_t *buf, uint32_t size)
{
    VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;

    buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
                              (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
    if (!buffers)
        return AVERROR(ENOMEM);

    pic_ctx->bitstream_buffers = buffers;
    buffers += pic_ctx->bitstream_buffers_used++;

    buffers->struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
    buffers->bitstream       = buf;
    buffers->bitstream_bytes = size;
    return 0;
}

/* Obsolete non-hwaccel VDPAU support below... */

void ff_vdpau_h264_set_reference_frames(H264Context *h)
{
    struct vdpau_render_state *render, *render_ref;
    VdpReferenceFrameH264 *rf, *rf2;
    H264Picture *pic;
    int i, list, pic_frame_idx;

    render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
    assert(render);

    rf = &render->info.h264.referenceFrames[0];
#define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)

    for (list = 0; list < 2; ++list) {
        H264Picture **lp = list ? h->long_ref : h->short_ref;
        int ls = list ? 16 : h->short_ref_count;

        for (i = 0; i < ls; ++i) {
            pic = lp[i];
            if (!pic || !pic->reference)
                continue;
            pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;

            render_ref = (struct vdpau_render_state *)pic->f.data[0];
            assert(render_ref);

            rf2 = &render->info.h264.referenceFrames[0];
            while (rf2 != rf) {
                if (
                    (rf2->surface == render_ref->surface)
                    && (rf2->is_long_term == pic->long_ref)
                    && (rf2->frame_idx == pic_frame_idx)
                )
                    break;
                ++rf2;
            }
            if (rf2 != rf) {
                rf2->top_is_reference    |= (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
                rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
                continue;
            }

            if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
                continue;

            rf->surface             = render_ref->surface;
            rf->is_long_term        = pic->long_ref;
            rf->top_is_reference    = (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
            rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
            rf->field_order_cnt[0]  = pic->field_poc[0];
            rf->field_order_cnt[1]  = pic->field_poc[1];
            rf->frame_idx           = pic_frame_idx;

            ++rf;
        }
    }

    for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
        rf->surface             = VDP_INVALID_HANDLE;
        rf->is_long_term        = 0;
        rf->top_is_reference    = 0;
        rf->bottom_is_reference = 0;
        rf->field_order_cnt[0]  = 0;
        rf->field_order_cnt[1]  = 0;
        rf->frame_idx           = 0;
    }
}

void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf, int buf_size)
{
    struct vdpau_render_state *render = (struct vdpau_render_state*)data;
    assert(render);

    render->bitstream_buffers= av_fast_realloc(
        render->bitstream_buffers,
        &render->bitstream_buffers_allocated,
        sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
    );

    render->bitstream_buffers[render->bitstream_buffers_used].struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
    render->bitstream_buffers[render->bitstream_buffers_used].bitstream       = buf;
    render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
    render->bitstream_buffers_used++;
}

#if CONFIG_H264_VDPAU_DECODER
void ff_vdpau_h264_picture_start(H264Context *h)
{
    struct vdpau_render_state *render;
    int i;

    render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
    assert(render);

    for (i = 0; i < 2; ++i) {
        int foc = h->cur_pic_ptr->field_poc[i];
        if (foc == INT_MAX)
            foc = 0;
        render->info.h264.field_order_cnt[i] = foc;
    }

    render->info.h264.frame_num = h->frame_num;
}

void ff_vdpau_h264_picture_complete(H264Context *h)
{
    struct vdpau_render_state *render;

    render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
    assert(render);

    render->info.h264.slice_count = h->slice_num;
    if (render->info.h264.slice_count < 1)
        return;

    render->info.h264.is_reference                           = (h->cur_pic_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
    render->info.h264.field_pic_flag                         = h->picture_structure != PICT_FRAME;
    render->info.h264.bottom_field_flag                      = h->picture_structure == PICT_BOTTOM_FIELD;
    render->info.h264.num_ref_frames                         = h->sps.ref_frame_count;
    render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
    render->info.h264.constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
    render->info.h264.weighted_pred_flag                     = h->pps.weighted_pred;
    render->info.h264.weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
    render->info.h264.frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
    render->info.h264.transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
    render->info.h264.chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
    render->info.h264.second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
    render->info.h264.pic_init_qp_minus26                    = h->pps.init_qp - 26;
    render->info.h264.num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
    render->info.h264.num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
    render->info.h264.log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
    render->info.h264.pic_order_cnt_type                     = h->sps.poc_type;
    render->info.h264.log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
    render->info.h264.delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
    render->info.h264.direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
    render->info.h264.entropy_coding_mode_flag               = h->pps.cabac;
    render->info.h264.pic_order_present_flag                 = h->pps.pic_order_present;
    render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
    render->info.h264.redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
    memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
    memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
    memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));

    ff_h264_draw_horiz_band(h, 0, h->avctx->height);
    render->bitstream_buffers_used = 0;
}
#endif /* CONFIG_H264_VDPAU_DECODER */

#if CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER
void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
                                    int buf_size, int slice_count)
{
    struct vdpau_render_state *render, *last, *next;
    int i;

    if (!s->current_picture_ptr) return;

    render = (struct vdpau_render_state *)s->current_picture_ptr->f->data[0];
    assert(render);

    /* fill VdpPictureInfoMPEG1Or2 struct */
    render->info.mpeg.picture_structure          = s->picture_structure;
    render->info.mpeg.picture_coding_type        = s->pict_type;
    render->info.mpeg.intra_dc_precision         = s->intra_dc_precision;
    render->info.mpeg.frame_pred_frame_dct       = s->frame_pred_frame_dct;
    render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
    render->info.mpeg.intra_vlc_format           = s->intra_vlc_format;
    render->info.mpeg.alternate_scan             = s->alternate_scan;
    render->info.mpeg.q_scale_type               = s->q_scale_type;
    render->info.mpeg.top_field_first            = s->top_field_first;
    render->info.mpeg.full_pel_forward_vector    = s->full_pel[0]; // MPEG-1 only.  Set 0 for MPEG-2
    render->info.mpeg.full_pel_backward_vector   = s->full_pel[1]; // MPEG-1 only.  Set 0 for MPEG-2
    render->info.mpeg.f_code[0][0]               = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
    render->info.mpeg.f_code[0][1]               = s->mpeg_f_code[0][1];
    render->info.mpeg.f_code[1][0]               = s->mpeg_f_code[1][0];
    render->info.mpeg.f_code[1][1]               = s->mpeg_f_code[1][1];
    for (i = 0; i < 64; ++i) {
        render->info.mpeg.intra_quantizer_matrix[i]     = s->intra_matrix[i];
        render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
    }

    render->info.mpeg.forward_reference          = VDP_INVALID_HANDLE;
    render->info.mpeg.backward_reference         = VDP_INVALID_HANDLE;

    switch(s->pict_type){
    case  AV_PICTURE_TYPE_B:
        next = (struct vdpau_render_state *)s->next_picture.f->data[0];
        assert(next);
        render->info.mpeg.backward_reference     = next->surface;
        // no return here, going to set forward prediction
    case  AV_PICTURE_TYPE_P:
        last = (struct vdpau_render_state *)s->last_picture.f->data[0];
        if (!last) // FIXME: Does this test make sense?
            last = render; // predict second field from the first
        render->info.mpeg.forward_reference      = last->surface;
    }

    ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);

    render->info.mpeg.slice_count                = slice_count;

    if (slice_count)
        ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
    render->bitstream_buffers_used               = 0;
}
#endif /* CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER */

#if CONFIG_VC1_VDPAU_DECODER
void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
                                 int buf_size)
{
    VC1Context *v = s->avctx->priv_data;
    struct vdpau_render_state *render, *last, *next;

    render = (struct vdpau_render_state *)s->current_picture.f->data[0];
    assert(render);

    /*  fill LvPictureInfoVC1 struct */
    render->info.vc1.frame_coding_mode  = v->fcm ? v->fcm + 1 : 0;
    render->info.vc1.postprocflag       = v->postprocflag;
    render->info.vc1.pulldown           = v->broadcast;
    render->info.vc1.interlace          = v->interlace;
    render->info.vc1.tfcntrflag         = v->tfcntrflag;
    render->info.vc1.finterpflag        = v->finterpflag;
    render->info.vc1.psf                = v->psf;
    render->info.vc1.dquant             = v->dquant;
    render->info.vc1.panscan_flag       = v->panscanflag;
    render->info.vc1.refdist_flag       = v->refdist_flag;
    render->info.vc1.quantizer          = v->quantizer_mode;
    render->info.vc1.extended_mv        = v->extended_mv;
    render->info.vc1.extended_dmv       = v->extended_dmv;
    render->info.vc1.overlap            = v->overlap;
    render->info.vc1.vstransform        = v->vstransform;
    render->info.vc1.loopfilter         = v->s.loop_filter;
    render->info.vc1.fastuvmc           = v->fastuvmc;
    render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
    render->info.vc1.range_mapy         = v->range_mapy;
    render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
    render->info.vc1.range_mapuv        = v->range_mapuv;
    /* Specific to simple/main profile only */
    render->info.vc1.multires           = v->multires;
    render->info.vc1.syncmarker         = v->resync_marker;
    render->info.vc1.rangered           = v->rangered | (v->rangeredfrm << 1);
    render->info.vc1.maxbframes         = v->s.max_b_frames;

    render->info.vc1.deblockEnable      = v->postprocflag & 1;
    render->info.vc1.pquant             = v->pq;

    render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
    render->info.vc1.backward_reference = VDP_INVALID_HANDLE;

    if (v->bi_type)
        render->info.vc1.picture_type = 4;
    else
        render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;

    switch(s->pict_type){
    case  AV_PICTURE_TYPE_B:
        next = (struct vdpau_render_state *)s->next_picture.f->data[0];
        assert(next);
        render->info.vc1.backward_reference = next->surface;
        // no break here, going to set forward prediction
    case  AV_PICTURE_TYPE_P:
        last = (struct vdpau_render_state *)s->last_picture.f->data[0];
        if (!last) // FIXME: Does this test make sense?
            last = render; // predict second field from the first
        render->info.vc1.forward_reference = last->surface;
    }

    ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);

    render->info.vc1.slice_count          = 1;

    ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
    render->bitstream_buffers_used        = 0;
}
#endif /* (CONFIG_VC1_VDPAU_DECODER */

#if CONFIG_MPEG4_VDPAU_DECODER
void ff_vdpau_mpeg4_decode_picture(Mpeg4DecContext *ctx, const uint8_t *buf,
                                   int buf_size)
{
    MpegEncContext *s = &ctx->m;
    struct vdpau_render_state *render, *last, *next;
    int i;

    if (!s->current_picture_ptr) return;

    render = (struct vdpau_render_state *)s->current_picture_ptr->f->data[0];
    assert(render);

    /* fill VdpPictureInfoMPEG4Part2 struct */
    render->info.mpeg4.trd[0]                            = s->pp_time;
    render->info.mpeg4.trb[0]                            = s->pb_time;
    render->info.mpeg4.trd[1]                            = s->pp_field_time >> 1;
    render->info.mpeg4.trb[1]                            = s->pb_field_time >> 1;
    render->info.mpeg4.vop_time_increment_resolution     = s->avctx->time_base.den;
    render->info.mpeg4.vop_coding_type                   = 0;
    render->info.mpeg4.vop_fcode_forward                 = s->f_code;
    render->info.mpeg4.vop_fcode_backward                = s->b_code;
    render->info.mpeg4.resync_marker_disable             = !ctx->resync_marker;
    render->info.mpeg4.interlaced                        = !s->progressive_sequence;
    render->info.mpeg4.quant_type                        = s->mpeg_quant;
    render->info.mpeg4.quarter_sample                    = s->quarter_sample;
    render->info.mpeg4.short_video_header                = s->avctx->codec->id == AV_CODEC_ID_H263;
    render->info.mpeg4.rounding_control                  = s->no_rounding;
    render->info.mpeg4.alternate_vertical_scan_flag      = s->alternate_scan;
    render->info.mpeg4.top_field_first                   = s->top_field_first;
    for (i = 0; i < 64; ++i) {
        render->info.mpeg4.intra_quantizer_matrix[i]     = s->intra_matrix[i];
        render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
    }
    render->info.mpeg4.forward_reference                 = VDP_INVALID_HANDLE;
    render->info.mpeg4.backward_reference                = VDP_INVALID_HANDLE;

    switch (s->pict_type) {
    case AV_PICTURE_TYPE_B:
        next = (struct vdpau_render_state *)s->next_picture.f->data[0];
        assert(next);
        render->info.mpeg4.backward_reference     = next->surface;
        render->info.mpeg4.vop_coding_type        = 2;
        // no break here, going to set forward prediction
    case AV_PICTURE_TYPE_P:
        last = (struct vdpau_render_state *)s->last_picture.f->data[0];
        assert(last);
        render->info.mpeg4.forward_reference      = last->surface;
    }

    ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);

    ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
    render->bitstream_buffers_used = 0;
}
#endif /* CONFIG_MPEG4_VDPAU_DECODER */

int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
{
#define PROFILE(prof)                      \
do {                                       \
    *profile = VDP_DECODER_PROFILE_##prof; \
    return 0;                              \
} while (0)

    switch (avctx->codec_id) {
    case AV_CODEC_ID_MPEG1VIDEO:               PROFILE(MPEG1);
    case AV_CODEC_ID_MPEG2VIDEO:
        switch (avctx->profile) {
        case FF_PROFILE_MPEG2_MAIN:            PROFILE(MPEG2_MAIN);
        case FF_PROFILE_MPEG2_SIMPLE:          PROFILE(MPEG2_SIMPLE);
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_H263:                     PROFILE(MPEG4_PART2_ASP);
    case AV_CODEC_ID_MPEG4:
        switch (avctx->profile) {
        case FF_PROFILE_MPEG4_SIMPLE:          PROFILE(MPEG4_PART2_SP);
        case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(MPEG4_PART2_ASP);
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_H264:
        switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
        case FF_PROFILE_H264_BASELINE:         PROFILE(H264_BASELINE);
        case FF_PROFILE_H264_CONSTRAINED_BASELINE:
        case FF_PROFILE_H264_MAIN:             PROFILE(H264_MAIN);
        case FF_PROFILE_H264_HIGH:             PROFILE(H264_HIGH);
#ifdef VDP_DECODER_PROFILE_H264_EXTENDED
        case FF_PROFILE_H264_EXTENDED:         PROFILE(H264_EXTENDED);
#endif
        default:                               return AVERROR(EINVAL);
        }
    case AV_CODEC_ID_WMV3:
    case AV_CODEC_ID_VC1:
        switch (avctx->profile) {
        case FF_PROFILE_VC1_SIMPLE:            PROFILE(VC1_SIMPLE);
        case FF_PROFILE_VC1_MAIN:              PROFILE(VC1_MAIN);
        case FF_PROFILE_VC1_ADVANCED:          PROFILE(VC1_ADVANCED);
        default:                               return AVERROR(EINVAL);
        }
    }
    return AVERROR(EINVAL);
#undef PROFILE
}

AVVDPAUContext *av_vdpau_alloc_context(void)
{
    return av_mallocz(sizeof(AVVDPAUContext));
}

int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
                          VdpGetProcAddress *get_proc, unsigned flags)
{
    VDPAUHWContext *hwctx;

    if (flags & ~(AV_HWACCEL_FLAG_IGNORE_LEVEL|AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH))
        return AVERROR(EINVAL);

    if (av_reallocp(&avctx->hwaccel_context, sizeof(*hwctx)))
        return AVERROR(ENOMEM);

    hwctx = avctx->hwaccel_context;

    memset(hwctx, 0, sizeof(*hwctx));
    hwctx->context.decoder  = VDP_INVALID_HANDLE;
    hwctx->device           = device;
    hwctx->get_proc_address = get_proc;
    hwctx->flags            = flags;
    hwctx->reset            = 1;
    return 0;
}

/* @}*/