b100daa9819f9a7b9da896df1d7fd8579a6d6cd4
[libav.git] / libavcodec / vdpau_vc1.c
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 Libav.
8 *
9 * Libav 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 * Libav 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 Libav; 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
31 static int vdpau_vc1_start_frame(AVCodecContext *avctx,
32 const uint8_t *buffer, uint32_t size)
33 {
34 VC1Context * const v = avctx->priv_data;
35 MpegEncContext * const s = &v->s;
36 Picture *pic = s->current_picture_ptr;
37 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
38 VdpPictureInfoVC1 *info = &pic_ctx->info.vc1;
39 VdpVideoSurface ref;
40
41 /* fill LvPictureInfoVC1 struct */
42 info->forward_reference = VDP_INVALID_HANDLE;
43 info->backward_reference = VDP_INVALID_HANDLE;
44
45 switch (s->pict_type) {
46 case AV_PICTURE_TYPE_B:
47 ref = ff_vdpau_get_surface_id(s->next_picture.f);
48 assert(ref != VDP_INVALID_HANDLE);
49 info->backward_reference = ref;
50 /* fall-through */
51 case AV_PICTURE_TYPE_P:
52 ref = ff_vdpau_get_surface_id(s->last_picture.f);
53 assert(ref != VDP_INVALID_HANDLE);
54 info->forward_reference = ref;
55 }
56
57 info->slice_count = 0;
58 if (v->bi_type)
59 info->picture_type = 4;
60 else
61 info->picture_type = s->pict_type - 1 + s->pict_type / 3;
62
63 info->frame_coding_mode = v->fcm ? (v->fcm + 1) : 0;
64 info->postprocflag = v->postprocflag;
65 info->pulldown = v->broadcast;
66 info->interlace = v->interlace;
67 info->tfcntrflag = v->tfcntrflag;
68 info->finterpflag = v->finterpflag;
69 info->psf = v->psf;
70 info->dquant = v->dquant;
71 info->panscan_flag = v->panscanflag;
72 info->refdist_flag = v->refdist_flag;
73 info->quantizer = v->quantizer_mode;
74 info->extended_mv = v->extended_mv;
75 info->extended_dmv = v->extended_dmv;
76 info->overlap = v->overlap;
77 info->vstransform = v->vstransform;
78 info->loopfilter = v->s.loop_filter;
79 info->fastuvmc = v->fastuvmc;
80 info->range_mapy_flag = v->range_mapy_flag;
81 info->range_mapy = v->range_mapy;
82 info->range_mapuv_flag = v->range_mapuv_flag;
83 info->range_mapuv = v->range_mapuv;
84 /* Specific to simple/main profile only */
85 info->multires = v->multires;
86 info->syncmarker = v->resync_marker;
87 info->rangered = v->rangered | (v->rangeredfrm << 1);
88 info->maxbframes = v->s.max_b_frames;
89 info->deblockEnable = v->postprocflag & 1;
90 info->pquant = v->pq;
91
92 return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
93 }
94
95 static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
96 const uint8_t *buffer, uint32_t size)
97 {
98 VC1Context * const v = avctx->priv_data;
99 MpegEncContext * const s = &v->s;
100 Picture *pic = s->current_picture_ptr;
101 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
102 int val;
103
104 val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
105 if (val < 0)
106 return val;
107
108 pic_ctx->info.vc1.slice_count++;
109 return 0;
110 }
111
112 #if CONFIG_WMV3_VDPAU_HWACCEL
113 AVHWAccel ff_wmv3_vdpau_hwaccel = {
114 .name = "wm3_vdpau",
115 .type = AVMEDIA_TYPE_VIDEO,
116 .id = AV_CODEC_ID_WMV3,
117 .pix_fmt = AV_PIX_FMT_VDPAU,
118 .start_frame = vdpau_vc1_start_frame,
119 .end_frame = ff_vdpau_mpeg_end_frame,
120 .decode_slice = vdpau_vc1_decode_slice,
121 .priv_data_size = sizeof(struct vdpau_picture_context),
122 };
123 #endif
124
125 AVHWAccel ff_vc1_vdpau_hwaccel = {
126 .name = "vc1_vdpau",
127 .type = AVMEDIA_TYPE_VIDEO,
128 .id = AV_CODEC_ID_VC1,
129 .pix_fmt = AV_PIX_FMT_VDPAU,
130 .start_frame = vdpau_vc1_start_frame,
131 .end_frame = ff_vdpau_mpeg_end_frame,
132 .decode_slice = vdpau_vc1_decode_slice,
133 .priv_data_size = sizeof(struct vdpau_picture_context),
134 };