avcodec/vc1: fix calculation of the last line of a slice
[ffmpeg.git] / libavcodec / vaapi_vp8.c
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18
19 #include <va/va.h>
20 #include <va/va_dec_vp8.h>
21
22 #include "hwaccel.h"
23 #include "vaapi_decode.h"
24 #include "vp8.h"
25
26 static VASurfaceID vaapi_vp8_surface_id(VP8Frame *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 int vaapi_vp8_start_frame(AVCodecContext          *avctx,
35                                  av_unused const uint8_t *buffer,
36                                  av_unused uint32_t       size)
37 {
38     const VP8Context *s = avctx->priv_data;
39     VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
40     VAPictureParameterBufferVP8 pp;
41     VAProbabilityDataBufferVP8 prob;
42     VAIQMatrixBufferVP8 quant;
43     int err, i, j, k;
44
45     pic->output_surface = vaapi_vp8_surface_id(s->framep[VP56_FRAME_CURRENT]);
46
47     pp = (VAPictureParameterBufferVP8) {
48         .frame_width                     = avctx->width,
49         .frame_height                    = avctx->height,
50
51         .last_ref_frame                  = vaapi_vp8_surface_id(s->framep[VP56_FRAME_PREVIOUS]),
52         .golden_ref_frame                = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN]),
53         .alt_ref_frame                   = vaapi_vp8_surface_id(s->framep[VP56_FRAME_GOLDEN2]),
54         .out_of_loop_frame               = VA_INVALID_SURFACE,
55
56         .pic_fields.bits = {
57             .key_frame                   = !s->keyframe,
58             .version                     = s->profile,
59
60             .segmentation_enabled        = s->segmentation.enabled,
61             .update_mb_segmentation_map  = s->segmentation.update_map,
62             .update_segment_feature_data = s->segmentation.update_feature_data,
63
64             .filter_type                 = s->filter.simple,
65             .sharpness_level             = s->filter.sharpness,
66
67             .loop_filter_adj_enable      = s->lf_delta.enabled,
68             .mode_ref_lf_delta_update    = s->lf_delta.update,
69
70             .sign_bias_golden            = s->sign_bias[VP56_FRAME_GOLDEN],
71             .sign_bias_alternate         = s->sign_bias[VP56_FRAME_GOLDEN2],
72
73             .mb_no_coeff_skip            = s->mbskip_enabled,
74             .loop_filter_disable         = s->filter.level == 0,
75         },
76
77         .prob_skip_false                 = s->prob->mbskip,
78         .prob_intra                      = s->prob->intra,
79         .prob_last                       = s->prob->last,
80         .prob_gf                         = s->prob->golden,
81     };
82
83     for (i = 0; i < 3; i++)
84         pp.mb_segment_tree_probs[i] = s->prob->segmentid[i];
85
86     for (i = 0; i < 4; i++) {
87         if (s->segmentation.enabled) {
88             pp.loop_filter_level[i] = s->segmentation.filter_level[i];
89             if (!s->segmentation.absolute_vals)
90                 pp.loop_filter_level[i] += s->filter.level;
91         } else {
92             pp.loop_filter_level[i] = s->filter.level;
93         }
94         pp.loop_filter_level[i] = av_clip_uintp2(pp.loop_filter_level[i], 6);
95     }
96
97     for (i = 0; i < 4; i++) {
98         pp.loop_filter_deltas_ref_frame[i] = s->lf_delta.ref[i];
99         pp.loop_filter_deltas_mode[i] = s->lf_delta.mode[i + 4];
100     }
101
102     if (s->keyframe) {
103         static const uint8_t keyframe_y_mode_probs[4] = {
104             145, 156, 163, 128
105         };
106         static const uint8_t keyframe_uv_mode_probs[3] = {
107             142, 114, 183
108         };
109         memcpy(pp.y_mode_probs,  keyframe_y_mode_probs,  4);
110         memcpy(pp.uv_mode_probs, keyframe_uv_mode_probs, 3);
111     } else {
112         for (i = 0; i < 4; i++)
113             pp.y_mode_probs[i] = s->prob->pred16x16[i];
114         for (i = 0; i < 3; i++)
115             pp.uv_mode_probs[i] = s->prob->pred8x8c[i];
116     }
117     for (i = 0; i < 2; i++)
118         for (j = 0; j < 19; j++)
119             pp.mv_probs[i][j] = s->prob->mvc[i][j];
120
121     pp.bool_coder_ctx.range = s->coder_state_at_header_end.range;
122     pp.bool_coder_ctx.value = s->coder_state_at_header_end.value;
123     pp.bool_coder_ctx.count = s->coder_state_at_header_end.bit_count;
124
125     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
126                                             VAPictureParameterBufferType,
127                                             &pp, sizeof(pp));
128     if (err < 0)
129         goto fail;
130
131     for (i = 0; i < 4; i++) {
132         for (j = 0; j < 8; j++) {
133             static const int coeff_bands_inverse[8] = {
134                 0, 1, 2, 3, 5, 6, 4, 15
135             };
136             int coeff_pos = coeff_bands_inverse[j];
137
138             for (k = 0; k < 3; k++) {
139                 memcpy(prob.dct_coeff_probs[i][j][k],
140                        s->prob->token[i][coeff_pos][k], 11);
141             }
142         }
143     }
144
145     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
146                                             VAProbabilityBufferType,
147                                             &prob, sizeof(prob));
148     if (err < 0)
149         goto fail;
150
151     for (i = 0; i < 4; i++) {
152         int base_qi = s->segmentation.base_quant[i];
153         if (!s->segmentation.absolute_vals)
154             base_qi += s->quant.yac_qi;
155
156         quant.quantization_index[i][0] = av_clip_uintp2(base_qi,                       7);
157         quant.quantization_index[i][1] = av_clip_uintp2(base_qi + s->quant.ydc_delta,  7);
158         quant.quantization_index[i][2] = av_clip_uintp2(base_qi + s->quant.y2dc_delta, 7);
159         quant.quantization_index[i][3] = av_clip_uintp2(base_qi + s->quant.y2ac_delta, 7);
160         quant.quantization_index[i][4] = av_clip_uintp2(base_qi + s->quant.uvdc_delta, 7);
161         quant.quantization_index[i][5] = av_clip_uintp2(base_qi + s->quant.uvac_delta, 7);
162     }
163
164     err = ff_vaapi_decode_make_param_buffer(avctx, pic,
165                                             VAIQMatrixBufferType,
166                                             &quant, sizeof(quant));
167     if (err < 0)
168         goto fail;
169
170     return 0;
171
172 fail:
173     ff_vaapi_decode_cancel(avctx, pic);
174     return err;
175 }
176
177 static int vaapi_vp8_end_frame(AVCodecContext *avctx)
178 {
179     const VP8Context *s = avctx->priv_data;
180     VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
181
182     return ff_vaapi_decode_issue(avctx, pic);
183 }
184
185 static int vaapi_vp8_decode_slice(AVCodecContext *avctx,
186                                   const uint8_t  *buffer,
187                                   uint32_t        size)
188 {
189     const VP8Context *s = avctx->priv_data;
190     VAAPIDecodePicture *pic = s->framep[VP56_FRAME_CURRENT]->hwaccel_picture_private;
191     VASliceParameterBufferVP8 sp;
192     int err, i;
193
194     unsigned int header_size = 3 + 7 * s->keyframe;
195     const uint8_t *data = buffer + header_size;
196     unsigned int data_size = size - header_size;
197
198     sp = (VASliceParameterBufferVP8) {
199         .slice_data_size   = data_size,
200         .slice_data_offset = 0,
201         .slice_data_flag   = VA_SLICE_DATA_FLAG_ALL,
202
203         .macroblock_offset = (8 * (s->coder_state_at_header_end.input - data) -
204                               s->coder_state_at_header_end.bit_count - 8),
205         .num_of_partitions = s->num_coeff_partitions + 1,
206     };
207
208     sp.partition_size[0] = s->header_partition_size - ((sp.macroblock_offset + 7) / 8);
209     for (i = 0; i < 8; i++)
210         sp.partition_size[i+1] = s->coeff_partition_size[i];
211
212     err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &sp, sizeof(sp), data, data_size);
213     if (err)
214         goto fail;
215
216     return 0;
217
218 fail:
219     ff_vaapi_decode_cancel(avctx, pic);
220     return err;
221 }
222
223 const AVHWAccel ff_vp8_vaapi_hwaccel = {
224     .name                 = "vp8_vaapi",
225     .type                 = AVMEDIA_TYPE_VIDEO,
226     .id                   = AV_CODEC_ID_VP8,
227     .pix_fmt              = AV_PIX_FMT_VAAPI,
228     .start_frame          = &vaapi_vp8_start_frame,
229     .end_frame            = &vaapi_vp8_end_frame,
230     .decode_slice         = &vaapi_vp8_decode_slice,
231     .frame_priv_data_size = sizeof(VAAPIDecodePicture),
232     .init                 = &ff_vaapi_decode_init,
233     .uninit               = &ff_vaapi_decode_uninit,
234     .frame_params         = &ff_vaapi_common_frame_params,
235     .priv_data_size       = sizeof(VAAPIDecodeContext),
236     .caps_internal        = HWACCEL_CAP_ASYNC_SAFE,
237 };