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vdpau_vc1.c
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1 /*
2  * VC-1 decode acceleration through VDPAU
3  *
4  * Copyright (c) 2008 NVIDIA
5  * Copyright (c) 2013 RĂ©mi Denis-Courmont
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software Foundation,
21  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <vdpau/vdpau.h>
25 
26 #include "avcodec.h"
27 #include "vc1.h"
28 #include "vdpau.h"
29 #include "vdpau_internal.h"
30 
32  const uint8_t *buffer, uint32_t size)
33 {
34  VC1Context * const v = avctx->priv_data;
35  AVVDPAUContext *hwctx = avctx->hwaccel_context;
36  MpegEncContext * const s = &v->s;
37  VdpPictureInfoVC1 *info = &hwctx->info.vc1;
38  VdpVideoSurface ref;
39 
40  /* fill LvPictureInfoVC1 struct */
41  info->forward_reference = VDP_INVALID_HANDLE;
42  info->backward_reference = VDP_INVALID_HANDLE;
43 
44  switch (s->pict_type) {
45  case AV_PICTURE_TYPE_B:
47  assert(ref != VDP_INVALID_HANDLE);
48  info->backward_reference = ref;
49  /* fall-through */
50  case AV_PICTURE_TYPE_P:
52  assert(ref != VDP_INVALID_HANDLE);
53  info->forward_reference = ref;
54  }
55 
56  info->slice_count = 0;
57  if (v->bi_type)
58  info->picture_type = 4;
59  else
60  info->picture_type = s->pict_type - 1 + s->pict_type / 3;
61 
62  info->frame_coding_mode = v->fcm ? v->fcm + 1 : 0;
63  info->postprocflag = v->postprocflag;
64  info->pulldown = v->broadcast;
65  info->interlace = v->interlace;
66  info->tfcntrflag = v->tfcntrflag;
67  info->finterpflag = v->finterpflag;
68  info->psf = v->psf;
69  info->dquant = v->dquant;
70  info->panscan_flag = v->panscanflag;
71  info->refdist_flag = v->refdist_flag;
72  info->quantizer = v->quantizer_mode;
73  info->extended_mv = v->extended_mv;
74  info->extended_dmv = v->extended_dmv;
75  info->overlap = v->overlap;
76  info->vstransform = v->vstransform;
77  info->loopfilter = v->s.loop_filter;
78  info->fastuvmc = v->fastuvmc;
79  info->range_mapy_flag = v->range_mapy_flag;
80  info->range_mapy = v->range_mapy;
81  info->range_mapuv_flag = v->range_mapuv_flag;
82  info->range_mapuv = v->range_mapuv;
83  /* Specific to simple/main profile only */
84  info->multires = v->multires;
85  info->syncmarker = v->s.resync_marker;
86  info->rangered = v->rangered | (v->rangeredfrm << 1);
87  info->maxbframes = v->s.max_b_frames;
88  info->deblockEnable = v->postprocflag & 1;
89  info->pquant = v->pq;
90 
91  return ff_vdpau_common_start_frame(avctx, buffer, size);
92 }
93 
95  const uint8_t *buffer, uint32_t size)
96 {
97  AVVDPAUContext *hwctx = avctx->hwaccel_context;
98  int val;
99 
100  val = ff_vdpau_add_buffer(avctx, buffer, size);
101  if (val < 0)
102  return val;
103 
104  hwctx->info.vc1.slice_count++;
105  return 0;
106 }
107 
108 #if CONFIG_WMV3_VDPAU_HWACCEL
109 AVHWAccel ff_wmv3_vdpau_hwaccel = {
110  .name = "wm3_vdpau",
111  .type = AVMEDIA_TYPE_VIDEO,
112  .id = AV_CODEC_ID_WMV3,
113  .pix_fmt = AV_PIX_FMT_VDPAU,
114  .start_frame = vdpau_vc1_start_frame,
115  .end_frame = ff_vdpau_mpeg_end_frame,
116  .decode_slice = vdpau_vc1_decode_slice,
117 };
118 #endif
119 
121  .name = "vc1_vdpau",
122  .type = AVMEDIA_TYPE_VIDEO,
123  .id = AV_CODEC_ID_VC1,
124  .pix_fmt = AV_PIX_FMT_VDPAU,
125  .start_frame = vdpau_vc1_start_frame,
126  .end_frame = ff_vdpau_mpeg_end_frame,
127  .decode_slice = vdpau_vc1_decode_slice,
128 };