vaapi_vp9.c (7445B)
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_internal.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) 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, 1, 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 FFHWAccel ff_vp9_vaapi_hwaccel = { 172 .p.name = "vp9_vaapi", 173 .p.type = AVMEDIA_TYPE_VIDEO, 174 .p.id = AV_CODEC_ID_VP9, 175 .p.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 };