lavc/j2kenc: Support AV_PIX_FMT_PAL8.
[ffmpeg.git] / libavcodec / vaapi_vp9.c
1 /*
2  * VP9 HW decode acceleration through VA API
3  *
4  * Copyright (C) 2015 Timo Rothenpieler <timo@rothenpieler.org>
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 "libavutil/pixdesc.h"
24
25 #include "hwaccel.h"
26 #include "vaapi_decode.h"
27 #include "vp9shared.h"
28
29 static VASurfaceID vaapi_vp9_surface_id(const VP9Frame *vf)
30 {
31     if (vf)
32         return ff_vaapi_get_surface_id(vf->tf.f);
33     else
34         return VA_INVALID_SURFACE;
35 }
36
37 static int vaapi_vp9_start_frame(AVCodecContext          *avctx,
38                                  av_unused const uint8_t *buffer,
39                                  av_unused uint32_t       size)
40 {
41     const VP9SharedContext *h = avctx->priv_data;
42     VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
43     VADecPictureParameterBufferVP9 pic_param;
44     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
45     int err, i;
46
47     pic->output_surface = vaapi_vp9_surface_id(&h->frames[CUR_FRAME]);
48
49     pic_param = (VADecPictureParameterBufferVP9) {
50         .frame_width                      = avctx->width,
51         .frame_height                     = avctx->height,
52
53         .pic_fields.bits = {
54             .subsampling_x                = pixdesc->log2_chroma_w,
55             .subsampling_y                = pixdesc->log2_chroma_h,
56             .frame_type                   = !h->h.keyframe,
57             .show_frame                   = !h->h.invisible,
58             .error_resilient_mode         = h->h.errorres,
59             .intra_only                   = h->h.intraonly,
60             .allow_high_precision_mv      = h->h.keyframe ? 0 : h->h.highprecisionmvs,
61             .mcomp_filter_type            = h->h.filtermode ^ (h->h.filtermode <= 1),
62             .frame_parallel_decoding_mode = h->h.parallelmode,
63             .reset_frame_context          = h->h.resetctx,
64             .refresh_frame_context        = h->h.refreshctx,
65             .frame_context_idx            = h->h.framectxid,
66
67             .segmentation_enabled          = h->h.segmentation.enabled,
68             .segmentation_temporal_update  = h->h.segmentation.temporal,
69             .segmentation_update_map       = h->h.segmentation.update_map,
70
71             .last_ref_frame                = h->h.refidx[0],
72             .last_ref_frame_sign_bias      = h->h.signbias[0],
73             .golden_ref_frame              = h->h.refidx[1],
74             .golden_ref_frame_sign_bias    = h->h.signbias[1],
75             .alt_ref_frame                 = h->h.refidx[2],
76             .alt_ref_frame_sign_bias       = h->h.signbias[2],
77             .lossless_flag                 = h->h.lossless,
78         },
79
80         .filter_level                      = h->h.filter.level,
81         .sharpness_level                   = h->h.filter.sharpness,
82         .log2_tile_rows                    = h->h.tiling.log2_tile_rows,
83         .log2_tile_columns                 = h->h.tiling.log2_tile_cols,
84
85         .frame_header_length_in_bytes      = h->h.uncompressed_header_size,
86         .first_partition_size              = h->h.compressed_header_size,
87
88         .profile                           = h->h.profile,
89         .bit_depth                         = h->h.bpp,
90     };
91
92     for (i = 0; i < 7; i++)
93         pic_param.mb_segment_tree_probs[i] = h->h.segmentation.prob[i];
94
95     if (h->h.segmentation.temporal) {
96         for (i = 0; i < 3; i++)
97             pic_param.segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
98     } else {
99         memset(pic_param.segment_pred_probs, 255, sizeof(pic_param.segment_pred_probs));
100     }
101
102     for (i = 0; i < 8; i++) {
103         if (h->refs[i].f->buf[0])
104             pic_param.reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f);
105         else
106             pic_param.reference_frames[i] = VA_INVALID_ID;
107     }
108
109     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
110                                             VAPictureParameterBufferType,
111                                             &pic_param, sizeof(pic_param));
112     if (err < 0) {
113         ff_vaapi_decode_cancel(avctx, pic);
114         return err;
115     }
116
117     return 0;
118 }
119
120 static int vaapi_vp9_end_frame(AVCodecContext *avctx)
121 {
122     const VP9SharedContext *h = avctx->priv_data;
123     VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
124
125     return ff_vaapi_decode_issue(avctx, pic);
126 }
127
128 static int vaapi_vp9_decode_slice(AVCodecContext *avctx,
129                                   const uint8_t  *buffer,
130                                   uint32_t        size)
131 {
132     const VP9SharedContext *h = avctx->priv_data;
133     VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
134     VASliceParameterBufferVP9 slice_param;
135     int err, i;
136
137     slice_param = (VASliceParameterBufferVP9) {
138         .slice_data_size   = size,
139         .slice_data_offset = 0,
140         .slice_data_flag   = VA_SLICE_DATA_FLAG_ALL,
141     };
142
143     for (i = 0; i < 8; i++) {
144         slice_param.seg_param[i] = (VASegmentParameterVP9) {
145             .segment_flags.fields = {
146                 .segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled,
147                 .segment_reference         = h->h.segmentation.feat[i].ref_val,
148                 .segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled,
149             },
150
151             .luma_dc_quant_scale           = h->h.segmentation.feat[i].qmul[0][0],
152             .luma_ac_quant_scale           = h->h.segmentation.feat[i].qmul[0][1],
153             .chroma_dc_quant_scale         = h->h.segmentation.feat[i].qmul[1][0],
154             .chroma_ac_quant_scale         = h->h.segmentation.feat[i].qmul[1][1],
155         };
156
157         memcpy(slice_param.seg_param[i].filter_level, h->h.segmentation.feat[i].lflvl, sizeof(slice_param.seg_param[i].filter_level));
158     }
159
160     err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
161                                             &slice_param, sizeof(slice_param),
162                                             buffer, size);
163     if (err) {
164         ff_vaapi_decode_cancel(avctx, pic);
165         return err;
166     }
167
168     return 0;
169 }
170
171 const AVHWAccel ff_vp9_vaapi_hwaccel = {
172     .name                 = "vp9_vaapi",
173     .type                 = AVMEDIA_TYPE_VIDEO,
174     .id                   = AV_CODEC_ID_VP9,
175     .pix_fmt              = AV_PIX_FMT_VAAPI,
176     .start_frame          = vaapi_vp9_start_frame,
177     .end_frame            = vaapi_vp9_end_frame,
178     .decode_slice         = vaapi_vp9_decode_slice,
179     .frame_priv_data_size = sizeof(VAAPIDecodePicture),
180     .init                 = ff_vaapi_decode_init,
181     .uninit               = ff_vaapi_decode_uninit,
182     .frame_params         = ff_vaapi_common_frame_params,
183     .priv_data_size       = sizeof(VAAPIDecodeContext),
184     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
185 };