avcodec/cavsdec: Propagate error codes inside decode_mb_i()
[ffmpeg.git] / libavcodec / nvdec_vc1.c
1 /*
2  * VC1 HW decode acceleration through NVDEC
3  *
4  * Copyright (c) 2017 Philip Langdale
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22
23 #include "avcodec.h"
24 #include "nvdec.h"
25 #include "decode.h"
26 #include "vc1.h"
27
28 static int nvdec_vc1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
29 {
30     VC1Context *v = avctx->priv_data;
31     MpegEncContext *s = &v->s;
32
33     NVDECContext      *ctx = avctx->internal->hwaccel_priv_data;
34     CUVIDPICPARAMS     *pp = &ctx->pic_params;
35     FrameDecodeData *fdd;
36     NVDECFrame *cf;
37     AVFrame *cur_frame = s->current_picture.f;
38
39     int ret;
40
41     ret = ff_nvdec_start_frame(avctx, cur_frame);
42     if (ret < 0)
43         return ret;
44
45     fdd = (FrameDecodeData*)cur_frame->private_ref->data;
46     cf  = (NVDECFrame*)fdd->hwaccel_priv;
47
48     *pp = (CUVIDPICPARAMS) {
49         .PicWidthInMbs     = (cur_frame->width  + 15) / 16,
50         .FrameHeightInMbs  = (cur_frame->height + 15) / 16,
51         .CurrPicIdx        = cf->idx,
52         .field_pic_flag    = v->field_mode,
53         .bottom_field_flag = v->cur_field_type,
54         .second_field      = v->second_field,
55
56         .intra_pic_flag    = s->pict_type == AV_PICTURE_TYPE_I ||
57                              s->pict_type == AV_PICTURE_TYPE_BI,
58         .ref_pic_flag      = s->pict_type == AV_PICTURE_TYPE_I ||
59                              s->pict_type == AV_PICTURE_TYPE_P,
60
61         .CodecSpecific.vc1 = {
62             .ForwardRefIdx     = ff_nvdec_get_ref_idx(s->last_picture.f),
63             .BackwardRefIdx    = ff_nvdec_get_ref_idx(s->next_picture.f),
64             .FrameWidth        = cur_frame->width,
65             .FrameHeight       = cur_frame->height,
66
67             .intra_pic_flag    = s->pict_type == AV_PICTURE_TYPE_I ||
68                                  s->pict_type == AV_PICTURE_TYPE_BI,
69             .ref_pic_flag      = s->pict_type == AV_PICTURE_TYPE_I ||
70                                  s->pict_type == AV_PICTURE_TYPE_P,
71             .progressive_fcm   = v->fcm == 0,
72
73             .profile           = v->profile,
74             .postprocflag      = v->postprocflag,
75             .pulldown          = v->broadcast,
76             .interlace         = v->interlace,
77             .tfcntrflag        = v->tfcntrflag,
78             .finterpflag       = v->finterpflag,
79             .psf               = v->psf,
80             .multires          = v->multires,
81             .syncmarker        = v->resync_marker,
82             .rangered          = v->rangered,
83             .maxbframes        = s->max_b_frames,
84
85             .panscan_flag      = v->panscanflag,
86             .refdist_flag      = v->refdist_flag,
87             .extended_mv       = v->extended_mv,
88             .dquant            = v->dquant,
89             .vstransform       = v->vstransform,
90             .loopfilter        = v->s.loop_filter,
91             .fastuvmc          = v->fastuvmc,
92             .overlap           = v->overlap,
93             .quantizer         = v->quantizer_mode,
94             .extended_dmv      = v->extended_dmv,
95             .range_mapy_flag   = v->range_mapy_flag,
96             .range_mapy        = v->range_mapy,
97             .range_mapuv_flag  = v->range_mapuv_flag,
98             .range_mapuv       = v->range_mapuv,
99             .rangeredfrm       = v->rangeredfrm,
100         }
101     };
102
103     return 0;
104 }
105
106 static int nvdec_vc1_frame_params(AVCodecContext *avctx,
107                                   AVBufferRef *hw_frames_ctx)
108 {
109     // Each frame can at most have one P and one B reference
110     return ff_nvdec_frame_params(avctx, hw_frames_ctx, 2);
111 }
112
113 const AVHWAccel ff_vc1_nvdec_hwaccel = {
114     .name                 = "vc1_nvdec",
115     .type                 = AVMEDIA_TYPE_VIDEO,
116     .id                   = AV_CODEC_ID_VC1,
117     .pix_fmt              = AV_PIX_FMT_CUDA,
118     .start_frame          = nvdec_vc1_start_frame,
119     .end_frame            = ff_nvdec_simple_end_frame,
120     .decode_slice         = ff_nvdec_simple_decode_slice,
121     .frame_params         = nvdec_vc1_frame_params,
122     .init                 = ff_nvdec_decode_init,
123     .uninit               = ff_nvdec_decode_uninit,
124     .priv_data_size       = sizeof(NVDECContext),
125 };
126
127 #if CONFIG_WMV3_NVDEC_HWACCEL
128 const AVHWAccel ff_wmv3_nvdec_hwaccel = {
129     .name                 = "wmv3_nvdec",
130     .type                 = AVMEDIA_TYPE_VIDEO,
131     .id                   = AV_CODEC_ID_WMV3,
132     .pix_fmt              = AV_PIX_FMT_CUDA,
133     .start_frame          = nvdec_vc1_start_frame,
134     .end_frame            = ff_nvdec_simple_end_frame,
135     .decode_slice         = ff_nvdec_simple_decode_slice,
136     .frame_params         = nvdec_vc1_frame_params,
137     .init                 = ff_nvdec_decode_init,
138     .uninit               = ff_nvdec_decode_uninit,
139     .priv_data_size       = sizeof(NVDECContext),
140 };
141 #endif