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path: root/libavcodec/vdpau_vc1.c (plain)
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1/*
2 * VC-1 decode acceleration through VDPAU
3 *
4 * Copyright (c) 2008 NVIDIA
5 * Copyright (c) 2013 Rémi 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 "hwaccel.h"
28#include "vc1.h"
29#include "vdpau.h"
30#include "vdpau_internal.h"
31
32static int vdpau_vc1_start_frame(AVCodecContext *avctx,
33 const uint8_t *buffer, uint32_t size)
34{
35 VC1Context * const v = avctx->priv_data;
36 MpegEncContext * const s = &v->s;
37 Picture *pic = s->current_picture_ptr;
38 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
39 VdpPictureInfoVC1 *info = &pic_ctx->info.vc1;
40 VdpVideoSurface ref;
41
42 /* fill LvPictureInfoVC1 struct */
43 info->forward_reference = VDP_INVALID_HANDLE;
44 info->backward_reference = VDP_INVALID_HANDLE;
45
46 switch (s->pict_type) {
47 case AV_PICTURE_TYPE_B:
48 if (s->next_picture_ptr) {
49 ref = ff_vdpau_get_surface_id(s->next_picture.f);
50 assert(ref != VDP_INVALID_HANDLE);
51 info->backward_reference = ref;
52 }
53 /* fall-through */
54 case AV_PICTURE_TYPE_P:
55 if (s->last_picture_ptr) {
56 ref = ff_vdpau_get_surface_id(s->last_picture.f);
57 assert(ref != VDP_INVALID_HANDLE);
58 info->forward_reference = ref;
59 }
60 }
61
62 info->slice_count = 0;
63 if (v->bi_type)
64 info->picture_type = 4;
65 else
66 info->picture_type = s->pict_type - 1 + s->pict_type / 3;
67
68 info->frame_coding_mode = v->fcm ? (v->fcm + 1) : 0;
69 info->postprocflag = v->postprocflag;
70 info->pulldown = v->broadcast;
71 info->interlace = v->interlace;
72 info->tfcntrflag = v->tfcntrflag;
73 info->finterpflag = v->finterpflag;
74 info->psf = v->psf;
75 info->dquant = v->dquant;
76 info->panscan_flag = v->panscanflag;
77 info->refdist_flag = v->refdist_flag;
78 info->quantizer = v->quantizer_mode;
79 info->extended_mv = v->extended_mv;
80 info->extended_dmv = v->extended_dmv;
81 info->overlap = v->overlap;
82 info->vstransform = v->vstransform;
83 info->loopfilter = v->s.loop_filter;
84 info->fastuvmc = v->fastuvmc;
85 info->range_mapy_flag = v->range_mapy_flag;
86 info->range_mapy = v->range_mapy;
87 info->range_mapuv_flag = v->range_mapuv_flag;
88 info->range_mapuv = v->range_mapuv;
89 /* Specific to simple/main profile only */
90 info->multires = v->multires;
91 info->syncmarker = v->resync_marker;
92 info->rangered = v->rangered | (v->rangeredfrm << 1);
93 info->maxbframes = v->s.max_b_frames;
94 info->deblockEnable = v->postprocflag & 1;
95 info->pquant = v->pq;
96
97 return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
98}
99
100static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
101 const uint8_t *buffer, uint32_t size)
102{
103 VC1Context * const v = avctx->priv_data;
104 MpegEncContext * const s = &v->s;
105 Picture *pic = s->current_picture_ptr;
106 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
107 int val;
108
109 val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
110 if (val < 0)
111 return val;
112
113 pic_ctx->info.vc1.slice_count++;
114 return 0;
115}
116
117static int vdpau_vc1_init(AVCodecContext *avctx)
118{
119 VdpDecoderProfile profile;
120
121 switch (avctx->profile) {
122 case FF_PROFILE_VC1_SIMPLE:
123 profile = VDP_DECODER_PROFILE_VC1_SIMPLE;
124 break;
125 case FF_PROFILE_VC1_MAIN:
126 profile = VDP_DECODER_PROFILE_VC1_MAIN;
127 break;
128 case FF_PROFILE_VC1_ADVANCED:
129 profile = VDP_DECODER_PROFILE_VC1_ADVANCED;
130 break;
131 default:
132 return AVERROR(ENOTSUP);
133 }
134
135 return ff_vdpau_common_init(avctx, profile, avctx->level);
136}
137
138#if CONFIG_WMV3_VDPAU_HWACCEL
139AVHWAccel ff_wmv3_vdpau_hwaccel = {
140 .name = "wm3_vdpau",
141 .type = AVMEDIA_TYPE_VIDEO,
142 .id = AV_CODEC_ID_WMV3,
143 .pix_fmt = AV_PIX_FMT_VDPAU,
144 .start_frame = vdpau_vc1_start_frame,
145 .end_frame = ff_vdpau_mpeg_end_frame,
146 .decode_slice = vdpau_vc1_decode_slice,
147 .frame_priv_data_size = sizeof(struct vdpau_picture_context),
148 .init = vdpau_vc1_init,
149 .uninit = ff_vdpau_common_uninit,
150 .priv_data_size = sizeof(VDPAUContext),
151 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
152};
153#endif
154
155AVHWAccel ff_vc1_vdpau_hwaccel = {
156 .name = "vc1_vdpau",
157 .type = AVMEDIA_TYPE_VIDEO,
158 .id = AV_CODEC_ID_VC1,
159 .pix_fmt = AV_PIX_FMT_VDPAU,
160 .start_frame = vdpau_vc1_start_frame,
161 .end_frame = ff_vdpau_mpeg_end_frame,
162 .decode_slice = vdpau_vc1_decode_slice,
163 .frame_priv_data_size = sizeof(struct vdpau_picture_context),
164 .init = vdpau_vc1_init,
165 .uninit = ff_vdpau_common_uninit,
166 .priv_data_size = sizeof(VDPAUContext),
167 .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
168};
169
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