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1 /*
2  * AV1 HW decode acceleration through VA API
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20
21 #include "libavutil/pixdesc.h"
22 #include "hwconfig.h"
23 #include "vaapi_decode.h"
24 #include "av1dec.h"
25
26 static VASurfaceID vaapi_av1_surface_id(AV1Frame *vf)
27 {
28     if (vf)
29         return ff_vaapi_get_surface_id(vf->tf.f);
30     else
31         return VA_INVALID_SURFACE;
32 }
33
34 static int8_t vaapi_av1_get_bit_depth_idx(AVCodecContext *avctx)
35 {
36     AV1DecContext *s = avctx->priv_data;
37     const AV1RawSequenceHeader *seq = s->raw_seq;
38     int8_t bit_depth = 8;
39
40     if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
41         bit_depth = seq->color_config.twelve_bit ? 12 : 10;
42     else if (seq->seq_profile <= 2)
43         bit_depth = seq->color_config.high_bitdepth ? 10 : 8;
44     else {
45         av_log(avctx, AV_LOG_ERROR,
46                "Couldn't get bit depth from profile:%d.\n", seq->seq_profile);
47         return -1;
48     }
49     return bit_depth == 8 ? 0 : bit_depth == 10 ? 1 : 2;
50 }
51
52 static int vaapi_av1_start_frame(AVCodecContext *avctx,
53                                  av_unused const uint8_t *buffer,
54                                  av_unused uint32_t size)
55 {
56     AV1DecContext *s = avctx->priv_data;
57     const AV1RawSequenceHeader *seq = s->raw_seq;
58     const AV1RawFrameHeader *frame_header = s->raw_frame_header;
59     const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain;
60     VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
61     VADecPictureParameterBufferAV1 pic_param;
62     int8_t bit_depth_idx;
63     int err = 0;
64     int apply_grain = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) && film_grain->apply_grain;
65     uint8_t remap_lr_type[4] = {AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ};
66
67     pic->output_surface = vaapi_av1_surface_id(&s->cur_frame);
68
69     bit_depth_idx = vaapi_av1_get_bit_depth_idx(avctx);
70     if (bit_depth_idx < 0)
71         goto fail;
72
73     memset(&pic_param, 0, sizeof(VADecPictureParameterBufferAV1));
74     pic_param = (VADecPictureParameterBufferAV1) {
75         .profile                 = seq->seq_profile,
76         .order_hint_bits_minus_1 = seq->order_hint_bits_minus_1,
77         .bit_depth_idx           = bit_depth_idx,
78         .current_frame           = pic->output_surface,
79         .current_display_picture = pic->output_surface,
80         .frame_width_minus1      = frame_header->frame_width_minus_1,
81         .frame_height_minus1     = frame_header->frame_height_minus_1,
82         .primary_ref_frame       = frame_header->primary_ref_frame,
83         .order_hint              = frame_header->order_hint,
84         .tile_cols               = frame_header->tile_cols,
85         .tile_rows               = frame_header->tile_rows,
86         .context_update_tile_id  = frame_header->context_update_tile_id,
87         .interp_filter           = frame_header->interpolation_filter,
88         .filter_level[0]         = frame_header->loop_filter_level[0],
89         .filter_level[1]         = frame_header->loop_filter_level[1],
90         .filter_level_u          = frame_header->loop_filter_level[2],
91         .filter_level_v          = frame_header->loop_filter_level[3],
92         .base_qindex             = frame_header->base_q_idx,
93         .cdef_damping_minus_3    = frame_header->cdef_damping_minus_3,
94         .cdef_bits               = frame_header->cdef_bits,
95         .seq_info_fields.fields = {
96             .still_picture              = seq->still_picture,
97             .use_128x128_superblock     = seq->use_128x128_superblock,
98             .enable_filter_intra        = seq->enable_filter_intra,
99             .enable_intra_edge_filter   = seq->enable_intra_edge_filter,
100             .enable_interintra_compound = seq->enable_interintra_compound,
101             .enable_masked_compound     = seq->enable_masked_compound,
102             .enable_dual_filter         = seq->enable_dual_filter,
103             .enable_order_hint          = seq->enable_order_hint,
104             .enable_jnt_comp            = seq->enable_jnt_comp,
105             .enable_cdef                = seq->enable_cdef,
106             .mono_chrome                = seq->color_config.mono_chrome,
107             .color_range                = seq->color_config.color_range,
108             .subsampling_x              = seq->color_config.subsampling_x,
109             .subsampling_y              = seq->color_config.subsampling_y,
110             .chroma_sample_position     = seq->color_config.chroma_sample_position,
111             .film_grain_params_present  = seq->film_grain_params_present &&
112                                           !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN),
113         },
114         .seg_info.segment_info_fields.bits = {
115             .enabled         = frame_header->segmentation_enabled,
116             .update_map      = frame_header->segmentation_update_map,
117             .temporal_update = frame_header->segmentation_temporal_update,
118             .update_data     = frame_header->segmentation_update_data,
119         },
120         .film_grain_info = {
121             .film_grain_info_fields.bits = {
122                 .apply_grain              = apply_grain,
123                 .chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma,
124                 .grain_scaling_minus_8    = film_grain->grain_scaling_minus_8,
125                 .ar_coeff_lag             = film_grain->ar_coeff_lag,
126                 .ar_coeff_shift_minus_6   = film_grain->ar_coeff_shift_minus_6,
127                 .grain_scale_shift        = film_grain->grain_scale_shift,
128                 .overlap_flag             = film_grain->overlap_flag,
129                 .clip_to_restricted_range = film_grain->clip_to_restricted_range,
130             },
131             .grain_seed    = film_grain->grain_seed,
132             .num_y_points  = film_grain->num_y_points,
133             .num_cb_points = film_grain->num_cb_points,
134             .num_cr_points = film_grain->num_cr_points,
135             .cb_mult       = film_grain->cb_mult,
136             .cb_luma_mult  = film_grain->cb_luma_mult,
137             .cb_offset     = film_grain->cb_offset,
138             .cr_mult       = film_grain->cr_mult,
139             .cr_luma_mult  = film_grain->cr_luma_mult,
140             .cr_offset     = film_grain->cr_offset,
141         },
142         .pic_info_fields.bits = {
143             .frame_type                   = frame_header->frame_type,
144             .show_frame                   = frame_header->show_frame,
145             .showable_frame               = frame_header->showable_frame,
146             .error_resilient_mode         = frame_header->error_resilient_mode,
147             .disable_cdf_update           = frame_header->disable_cdf_update,
148             .allow_screen_content_tools   = frame_header->allow_screen_content_tools,
149             .force_integer_mv             = frame_header->force_integer_mv,
150             .allow_intrabc                = frame_header->allow_intrabc,
151             .use_superres                 = frame_header->use_superres,
152             .allow_high_precision_mv      = frame_header->allow_high_precision_mv,
153             .is_motion_mode_switchable    = frame_header->is_motion_mode_switchable,
154             .use_ref_frame_mvs            = frame_header->use_ref_frame_mvs,
155             .disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf,
156             .uniform_tile_spacing_flag    = frame_header->uniform_tile_spacing_flag,
157             .allow_warped_motion          = frame_header->allow_warped_motion,
158         },
159         .loop_filter_info_fields.bits = {
160             .sharpness_level        = frame_header->loop_filter_sharpness,
161             .mode_ref_delta_enabled = frame_header->loop_filter_delta_enabled,
162             .mode_ref_delta_update  = frame_header->loop_filter_delta_update,
163         },
164         .mode_control_fields.bits = {
165             .delta_q_present_flag = frame_header->delta_q_present,
166             .log2_delta_q_res     = frame_header->delta_q_res,
167             .tx_mode              = frame_header->tx_mode,
168             .reference_select     = frame_header->reference_select,
169             .reduced_tx_set_used  = frame_header->reduced_tx_set,
170             .skip_mode_present    = frame_header->skip_mode_present,
171         },
172         .loop_restoration_fields.bits = {
173             .yframe_restoration_type  = remap_lr_type[frame_header->lr_type[0]],
174             .cbframe_restoration_type = remap_lr_type[frame_header->lr_type[1]],
175             .crframe_restoration_type = remap_lr_type[frame_header->lr_type[2]],
176             .lr_unit_shift            = frame_header->lr_unit_shift,
177             .lr_uv_shift              = frame_header->lr_uv_shift,
178         },
179         .qmatrix_fields.bits = {
180             .using_qmatrix = frame_header->using_qmatrix,
181         }
182     };
183
184     for (int i = 0; i < AV1_NUM_REF_FRAMES; i++) {
185         if (pic_param.pic_info_fields.bits.frame_type == AV1_FRAME_KEY)
186             pic_param.ref_frame_map[i] = VA_INVALID_ID;
187         else
188             pic_param.ref_frame_map[i] = vaapi_av1_surface_id(&s->ref[i]);
189     }
190     for (int i = 0; i < AV1_REFS_PER_FRAME; i++) {
191         pic_param.ref_frame_idx[i] = frame_header->ref_frame_idx[i];
192     }
193     for (int i = 0; i < AV1_TOTAL_REFS_PER_FRAME; i++) {
194         pic_param.ref_deltas[i] = frame_header->loop_filter_ref_deltas[i];
195     }
196     for (int i = 0; i < 2; i++) {
197         pic_param.mode_deltas[i] = frame_header->loop_filter_mode_deltas[i];
198     }
199     for (int i = 0; i < (1 << frame_header->cdef_bits); i++) {
200         pic_param.cdef_y_strengths[i] =
201             (frame_header->cdef_y_pri_strength[i] << 2) +
202                 frame_header->cdef_y_sec_strength[i];
203         pic_param.cdef_uv_strengths[i] =
204             (frame_header->cdef_uv_pri_strength[i] << 2) +
205                 frame_header->cdef_uv_sec_strength[i];
206     }
207     for (int i = 0; i < frame_header->tile_cols; i++) {
208         pic_param.width_in_sbs_minus_1[i] =
209             frame_header->width_in_sbs_minus_1[i];
210     }
211     for (int i = 0; i < frame_header->tile_rows; i++) {
212         pic_param.height_in_sbs_minus_1[i] =
213             frame_header->height_in_sbs_minus_1[i];
214     }
215     for (int i = AV1_REF_FRAME_LAST; i <= AV1_REF_FRAME_ALTREF; i++) {
216         pic_param.wm[i - 1].wmtype = s->cur_frame.gm_type[i];
217         for (int j = 0; j < 6; j++)
218             pic_param.wm[i - 1].wmmat[j] = s->cur_frame.gm_params[i][j];
219     }
220     if (apply_grain) {
221         for (int i = 0; i < film_grain->num_y_points; i++) {
222             pic_param.film_grain_info.point_y_value[i] =
223                 film_grain->point_y_value[i];
224             pic_param.film_grain_info.point_y_scaling[i] =
225                 film_grain->point_y_scaling[i];
226         }
227         for (int i = 0; i < film_grain->num_cb_points; i++) {
228             pic_param.film_grain_info.point_cb_value[i] =
229                 film_grain->point_cb_value[i];
230             pic_param.film_grain_info.point_cb_scaling[i] =
231                 film_grain->point_cb_scaling[i];
232         }
233         for (int i = 0; i < film_grain->num_cr_points; i++) {
234             pic_param.film_grain_info.point_cr_value[i] =
235                 film_grain->point_cr_value[i];
236             pic_param.film_grain_info.point_cr_scaling[i] =
237                 film_grain->point_cr_scaling[i];
238         }
239         for (int i = 0; i < 24; i++) {
240             pic_param.film_grain_info.ar_coeffs_y[i] =
241                 film_grain->ar_coeffs_y_plus_128[i] - 128;
242         }
243         for (int i = 0; i < 25; i++) {
244             pic_param.film_grain_info.ar_coeffs_cb[i] =
245                 film_grain->ar_coeffs_cb_plus_128[i] - 128;
246             pic_param.film_grain_info.ar_coeffs_cr[i] =
247                 film_grain->ar_coeffs_cr_plus_128[i] - 128;
248         }
249     }
250     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
251                                             VAPictureParameterBufferType,
252                                             &pic_param, sizeof(pic_param));
253     if (err < 0)
254         goto fail;
255
256     return 0;
257
258 fail:
259     ff_vaapi_decode_cancel(avctx, pic);
260     return err;
261 }
262
263 static int vaapi_av1_end_frame(AVCodecContext *avctx)
264 {
265     const AV1DecContext *s = avctx->priv_data;
266     VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
267     return ff_vaapi_decode_issue(avctx, pic);
268 }
269
270 static int vaapi_av1_decode_slice(AVCodecContext *avctx,
271                                   const uint8_t *buffer,
272                                   uint32_t size)
273 {
274     const AV1DecContext *s = avctx->priv_data;
275     VAAPIDecodePicture *pic = s->cur_frame.hwaccel_picture_private;
276     VASliceParameterBufferAV1 slice_param;
277     int err = 0;
278
279     for (int i = s->tg_start; i <= s->tg_end; i++) {
280         memset(&slice_param, 0, sizeof(VASliceParameterBufferAV1));
281
282         slice_param = (VASliceParameterBufferAV1) {
283             .slice_data_size   = s->tile_group_info[i].tile_size,
284             .slice_data_offset = s->tile_group_info[i].tile_offset,
285             .slice_data_flag   = VA_SLICE_DATA_FLAG_ALL,
286             .tile_row          = s->tile_group_info[i].tile_row,
287             .tile_column       = s->tile_group_info[i].tile_column,
288             .tg_start          = s->tg_start,
289             .tg_end            = s->tg_end,
290         };
291
292         err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &slice_param,
293                                                 sizeof(VASliceParameterBufferAV1),
294                                                 buffer,
295                                                 s->tile_group_info[i].tile_size);
296         if (err) {
297             ff_vaapi_decode_cancel(avctx, pic);
298             return err;
299         }
300     }
301
302     return 0;
303 }
304
305 const AVHWAccel ff_av1_vaapi_hwaccel = {
306     .name                 = "av1_vaapi",
307     .type                 = AVMEDIA_TYPE_VIDEO,
308     .id                   = AV_CODEC_ID_AV1,
309     .pix_fmt              = AV_PIX_FMT_VAAPI,
310     .start_frame          = vaapi_av1_start_frame,
311     .end_frame            = vaapi_av1_end_frame,
312     .decode_slice         = vaapi_av1_decode_slice,
313     .frame_priv_data_size = sizeof(VAAPIDecodePicture),
314     .init                 = ff_vaapi_decode_init,
315     .uninit               = ff_vaapi_decode_uninit,
316     .frame_params         = ff_vaapi_common_frame_params,
317     .priv_data_size       = sizeof(VAAPIDecodeContext),
318     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
319 };