Fix wmv1 encoding if all other msmpeg4-related encoders were disabled.
[ffmpeg.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 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
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         if (s->next_picture_ptr) {
48         ref = ff_vdpau_get_surface_id(s->next_picture.f);
49         assert(ref != VDP_INVALID_HANDLE);
50         info->backward_reference = ref;
51         }
52         /* fall-through */
53     case AV_PICTURE_TYPE_P:
54         if (s->last_picture_ptr) {
55         ref = ff_vdpau_get_surface_id(s->last_picture.f);
56         assert(ref != VDP_INVALID_HANDLE);
57         info->forward_reference  = ref;
58         }
59     }
60
61     info->slice_count       = 0;
62     if (v->bi_type)
63         info->picture_type  = 4;
64     else
65         info->picture_type  = s->pict_type - 1 + s->pict_type / 3;
66
67     info->frame_coding_mode = v->fcm ? (v->fcm + 1) : 0;
68     info->postprocflag      = v->postprocflag;
69     info->pulldown          = v->broadcast;
70     info->interlace         = v->interlace;
71     info->tfcntrflag        = v->tfcntrflag;
72     info->finterpflag       = v->finterpflag;
73     info->psf               = v->psf;
74     info->dquant            = v->dquant;
75     info->panscan_flag      = v->panscanflag;
76     info->refdist_flag      = v->refdist_flag;
77     info->quantizer         = v->quantizer_mode;
78     info->extended_mv       = v->extended_mv;
79     info->extended_dmv      = v->extended_dmv;
80     info->overlap           = v->overlap;
81     info->vstransform       = v->vstransform;
82     info->loopfilter        = v->s.loop_filter;
83     info->fastuvmc          = v->fastuvmc;
84     info->range_mapy_flag   = v->range_mapy_flag;
85     info->range_mapy        = v->range_mapy;
86     info->range_mapuv_flag  = v->range_mapuv_flag;
87     info->range_mapuv       = v->range_mapuv;
88     /* Specific to simple/main profile only */
89     info->multires          = v->multires;
90     info->syncmarker        = v->resync_marker;
91     info->rangered          = v->rangered | (v->rangeredfrm << 1);
92     info->maxbframes        = v->s.max_b_frames;
93     info->deblockEnable     = v->postprocflag & 1;
94     info->pquant            = v->pq;
95
96     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
97 }
98
99 static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
100                                   const uint8_t *buffer, uint32_t size)
101 {
102     VC1Context * const v  = avctx->priv_data;
103     MpegEncContext * const s = &v->s;
104     Picture *pic          = s->current_picture_ptr;
105     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
106     int val;
107
108     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
109     if (val < 0)
110         return val;
111
112     pic_ctx->info.vc1.slice_count++;
113     return 0;
114 }
115
116 #if CONFIG_WMV3_VDPAU_HWACCEL
117 AVHWAccel ff_wmv3_vdpau_hwaccel = {
118     .name           = "wm3_vdpau",
119     .type           = AVMEDIA_TYPE_VIDEO,
120     .id             = AV_CODEC_ID_WMV3,
121     .pix_fmt        = AV_PIX_FMT_VDPAU,
122     .start_frame    = vdpau_vc1_start_frame,
123     .end_frame      = ff_vdpau_mpeg_end_frame,
124     .decode_slice   = vdpau_vc1_decode_slice,
125     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
126 };
127 #endif
128
129 AVHWAccel ff_vc1_vdpau_hwaccel = {
130     .name           = "vc1_vdpau",
131     .type           = AVMEDIA_TYPE_VIDEO,
132     .id             = AV_CODEC_ID_VC1,
133     .pix_fmt        = AV_PIX_FMT_VDPAU,
134     .start_frame    = vdpau_vc1_start_frame,
135     .end_frame      = ff_vdpau_mpeg_end_frame,
136     .decode_slice   = vdpau_vc1_decode_slice,
137     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
138 };