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_decode.h"
27 static VASurfaceID vaapi_vp9_surface_id(const VP9Frame *vf)
30 return ff_vaapi_get_surface_id(vf->tf.f);
32 return VA_INVALID_SURFACE;
35 static int vaapi_vp9_start_frame(AVCodecContext *avctx,
36 av_unused const uint8_t *buffer,
37 av_unused uint32_t size)
39 const VP9SharedContext *h = avctx->priv_data;
40 VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
41 VADecPictureParameterBufferVP9 pic_param;
42 const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
45 pic->output_surface = vaapi_vp9_surface_id(&h->frames[CUR_FRAME]);
47 pic_param = (VADecPictureParameterBufferVP9) {
48 .frame_width = avctx->width,
49 .frame_height = avctx->height,
52 .subsampling_x = pixdesc->log2_chroma_w,
53 .subsampling_y = pixdesc->log2_chroma_h,
54 .frame_type = !h->h.keyframe,
55 .show_frame = !h->h.invisible,
56 .error_resilient_mode = h->h.errorres,
57 .intra_only = h->h.intraonly,
58 .allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs,
59 .mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1),
60 .frame_parallel_decoding_mode = h->h.parallelmode,
61 .reset_frame_context = h->h.resetctx,
62 .refresh_frame_context = h->h.refreshctx,
63 .frame_context_idx = h->h.framectxid,
65 .segmentation_enabled = h->h.segmentation.enabled,
66 .segmentation_temporal_update = h->h.segmentation.temporal,
67 .segmentation_update_map = h->h.segmentation.update_map,
69 .last_ref_frame = h->h.refidx[0],
70 .last_ref_frame_sign_bias = h->h.signbias[0],
71 .golden_ref_frame = h->h.refidx[1],
72 .golden_ref_frame_sign_bias = h->h.signbias[1],
73 .alt_ref_frame = h->h.refidx[2],
74 .alt_ref_frame_sign_bias = h->h.signbias[2],
75 .lossless_flag = h->h.lossless,
78 .filter_level = h->h.filter.level,
79 .sharpness_level = h->h.filter.sharpness,
80 .log2_tile_rows = h->h.tiling.log2_tile_rows,
81 .log2_tile_columns = h->h.tiling.log2_tile_cols,
83 .frame_header_length_in_bytes = h->h.uncompressed_header_size,
84 .first_partition_size = h->h.compressed_header_size,
86 .profile = h->h.profile,
87 .bit_depth = h->h.bpp,
90 for (i = 0; i < 7; i++)
91 pic_param.mb_segment_tree_probs[i] = h->h.segmentation.prob[i];
93 if (h->h.segmentation.temporal) {
94 for (i = 0; i < 3; i++)
95 pic_param.segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
97 memset(pic_param.segment_pred_probs, 255, sizeof(pic_param.segment_pred_probs));
100 for (i = 0; i < 8; i++) {
101 if (h->refs[i].f->buf[0])
102 pic_param.reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f);
104 pic_param.reference_frames[i] = VA_INVALID_ID;
107 err = ff_vaapi_decode_make_param_buffer(avctx, pic,
108 VAPictureParameterBufferType,
109 &pic_param, sizeof(pic_param));
111 ff_vaapi_decode_cancel(avctx, pic);
118 static int vaapi_vp9_end_frame(AVCodecContext *avctx)
120 const VP9SharedContext *h = avctx->priv_data;
121 VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
123 return ff_vaapi_decode_issue(avctx, pic);
126 static int vaapi_vp9_decode_slice(AVCodecContext *avctx,
127 const uint8_t *buffer,
130 const VP9SharedContext *h = avctx->priv_data;
131 VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private;
132 VASliceParameterBufferVP9 slice_param;
135 slice_param = (VASliceParameterBufferVP9) {
136 .slice_data_size = size,
137 .slice_data_offset = 0,
138 .slice_data_flag = VA_SLICE_DATA_FLAG_ALL,
141 for (i = 0; i < 8; i++) {
142 slice_param.seg_param[i] = (VASegmentParameterVP9) {
143 .segment_flags.fields = {
144 .segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled,
145 .segment_reference = h->h.segmentation.feat[i].ref_val,
146 .segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled,
149 .luma_dc_quant_scale = h->h.segmentation.feat[i].qmul[0][0],
150 .luma_ac_quant_scale = h->h.segmentation.feat[i].qmul[0][1],
151 .chroma_dc_quant_scale = h->h.segmentation.feat[i].qmul[1][0],
152 .chroma_ac_quant_scale = h->h.segmentation.feat[i].qmul[1][1],
155 memcpy(slice_param.seg_param[i].filter_level, h->h.segmentation.feat[i].lflvl, sizeof(slice_param.seg_param[i].filter_level));
158 err = ff_vaapi_decode_make_slice_buffer(avctx, pic,
159 &slice_param, sizeof(slice_param),
162 ff_vaapi_decode_cancel(avctx, pic);
169 AVHWAccel ff_vp9_vaapi_hwaccel = {
171 .type = AVMEDIA_TYPE_VIDEO,
172 .id = AV_CODEC_ID_VP9,
173 .pix_fmt = AV_PIX_FMT_VAAPI,
174 .start_frame = vaapi_vp9_start_frame,
175 .end_frame = vaapi_vp9_end_frame,
176 .decode_slice = vaapi_vp9_decode_slice,
177 .frame_priv_data_size = sizeof(VAAPIDecodePicture),
178 .init = ff_vaapi_decode_init,
179 .uninit = ff_vaapi_decode_uninit,
180 .priv_data_size = sizeof(VAAPIDecodeContext),