2 * VP9 HW decode acceleration through VA API
4 * Copyright (C) 2015 Timo Rothenpieler <timo@rothenpieler.org>
6 * This file is part of FFmpeg.
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.
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.
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
23 #include "libavutil/pixdesc.h"
24 #include "vaapi_internal.h"
27 static void fill_picture_parameters(AVCodecContext *avctx,
28 const VP9SharedContext *h,
29 VADecPictureParameterBufferVP9 *pp)
31 const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
34 pp->frame_width = avctx->width;
35 pp->frame_height = avctx->height;
37 pp->frame_header_length_in_bytes = h->h.uncompressed_header_size;
38 pp->first_partition_size = h->h.compressed_header_size;
40 pp->profile = h->h.profile;
42 pp->filter_level = h->h.filter.level;
43 pp->sharpness_level = h->h.filter.sharpness;
44 pp->log2_tile_rows = h->h.tiling.log2_tile_rows;
45 pp->log2_tile_columns = h->h.tiling.log2_tile_cols;
47 pp->pic_fields.bits.subsampling_x = pixdesc->log2_chroma_w;
48 pp->pic_fields.bits.subsampling_y = pixdesc->log2_chroma_h;
49 pp->pic_fields.bits.frame_type = !h->h.keyframe;
50 pp->pic_fields.bits.show_frame = !h->h.invisible;
51 pp->pic_fields.bits.error_resilient_mode = h->h.errorres;
52 pp->pic_fields.bits.intra_only = h->h.intraonly;
53 pp->pic_fields.bits.allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs;
54 pp->pic_fields.bits.mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1);
55 pp->pic_fields.bits.frame_parallel_decoding_mode = h->h.parallelmode;
56 pp->pic_fields.bits.reset_frame_context = h->h.resetctx;
57 pp->pic_fields.bits.refresh_frame_context = h->h.refreshctx;
58 pp->pic_fields.bits.frame_context_idx = h->h.framectxid;
60 pp->pic_fields.bits.segmentation_enabled = h->h.segmentation.enabled;
61 pp->pic_fields.bits.segmentation_temporal_update = h->h.segmentation.temporal;
62 pp->pic_fields.bits.segmentation_update_map = h->h.segmentation.update_map;
64 pp->pic_fields.bits.last_ref_frame = h->h.refidx[0];
65 pp->pic_fields.bits.last_ref_frame_sign_bias = h->h.signbias[0];
66 pp->pic_fields.bits.golden_ref_frame = h->h.refidx[1];
67 pp->pic_fields.bits.golden_ref_frame_sign_bias = h->h.signbias[1];
68 pp->pic_fields.bits.alt_ref_frame = h->h.refidx[2];
69 pp->pic_fields.bits.alt_ref_frame_sign_bias = h->h.signbias[2];
70 pp->pic_fields.bits.lossless_flag = h->h.lossless;
72 for (i = 0; i < 7; i++)
73 pp->mb_segment_tree_probs[i] = h->h.segmentation.prob[i];
75 if (h->h.segmentation.temporal) {
76 for (i = 0; i < 3; i++)
77 pp->segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
79 memset(pp->segment_pred_probs, 255, sizeof(pp->segment_pred_probs));
82 for (i = 0; i < 8; i++) {
83 if (h->refs[i].f->buf[0]) {
84 pp->reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f);
86 pp->reference_frames[i] = VA_INVALID_ID;
91 static int vaapi_vp9_start_frame(AVCodecContext *avctx,
92 av_unused const uint8_t *buffer,
93 av_unused uint32_t size)
95 const VP9SharedContext *h = avctx->priv_data;
96 FFVAContext * const vactx = ff_vaapi_get_context(avctx);
97 VADecPictureParameterBufferVP9 *pic_param;
99 vactx->slice_param_size = sizeof(VASliceParameterBufferVP9);
101 pic_param = ff_vaapi_alloc_pic_param(vactx, sizeof(VADecPictureParameterBufferVP9));
104 fill_picture_parameters(avctx, h, pic_param);
109 static int vaapi_vp9_end_frame(AVCodecContext *avctx)
111 FFVAContext * const vactx = ff_vaapi_get_context(avctx);
112 const VP9SharedContext *h = avctx->priv_data;
115 ret = ff_vaapi_commit_slices(vactx);
119 ret = ff_vaapi_render_picture(vactx, ff_vaapi_get_surface_id(h->frames[CUR_FRAME].tf.f));
124 ff_vaapi_common_end_frame(avctx);
128 static int vaapi_vp9_decode_slice(AVCodecContext *avctx,
129 const uint8_t *buffer,
132 FFVAContext * const vactx = ff_vaapi_get_context(avctx);
133 const VP9SharedContext *h = avctx->priv_data;
134 VASliceParameterBufferVP9 *slice_param;
137 slice_param = (VASliceParameterBufferVP9*)ff_vaapi_alloc_slice(vactx, buffer, size);
141 for (i = 0; i < 8; i++) {
142 slice_param->seg_param[i].segment_flags.fields.segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled;
143 slice_param->seg_param[i].segment_flags.fields.segment_reference = h->h.segmentation.feat[i].ref_val;
144 slice_param->seg_param[i].segment_flags.fields.segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled;
146 memcpy(slice_param->seg_param[i].filter_level, h->h.segmentation.feat[i].lflvl, sizeof(slice_param->seg_param[i].filter_level));
148 slice_param->seg_param[i].luma_dc_quant_scale = h->h.segmentation.feat[i].qmul[0][0];
149 slice_param->seg_param[i].luma_ac_quant_scale = h->h.segmentation.feat[i].qmul[0][1];
150 slice_param->seg_param[i].chroma_dc_quant_scale = h->h.segmentation.feat[i].qmul[1][0];
151 slice_param->seg_param[i].chroma_ac_quant_scale = h->h.segmentation.feat[i].qmul[1][1];
157 AVHWAccel ff_vp9_vaapi_hwaccel = {
159 .type = AVMEDIA_TYPE_VIDEO,
160 .id = AV_CODEC_ID_VP9,
161 .pix_fmt = AV_PIX_FMT_VAAPI,
162 .start_frame = vaapi_vp9_start_frame,
163 .end_frame = vaapi_vp9_end_frame,
164 .decode_slice = vaapi_vp9_decode_slice,
165 .init = ff_vaapi_context_init,
166 .uninit = ff_vaapi_context_fini,
167 .priv_data_size = sizeof(FFVAContext),