/* * VP9 HW decode acceleration through VA API * * Copyright (C) 2015 Timo Rothenpieler * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/pixdesc.h" #include "hwaccel.h" #include "vaapi_decode.h" #include "vp9shared.h" static VASurfaceID vaapi_vp9_surface_id(const VP9Frame *vf) { if (vf) return ff_vaapi_get_surface_id(vf->tf.f); else return VA_INVALID_SURFACE; } static int vaapi_vp9_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size) { const VP9SharedContext *h = avctx->priv_data; VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private; VADecPictureParameterBufferVP9 pic_param; const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt); int err, i; pic->output_surface = vaapi_vp9_surface_id(&h->frames[CUR_FRAME]); pic_param = (VADecPictureParameterBufferVP9) { .frame_width = avctx->width, .frame_height = avctx->height, .pic_fields.bits = { .subsampling_x = pixdesc->log2_chroma_w, .subsampling_y = pixdesc->log2_chroma_h, .frame_type = !h->h.keyframe, .show_frame = !h->h.invisible, .error_resilient_mode = h->h.errorres, .intra_only = h->h.intraonly, .allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs, .mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1), .frame_parallel_decoding_mode = h->h.parallelmode, .reset_frame_context = h->h.resetctx, .refresh_frame_context = h->h.refreshctx, .frame_context_idx = h->h.framectxid, .segmentation_enabled = h->h.segmentation.enabled, .segmentation_temporal_update = h->h.segmentation.temporal, .segmentation_update_map = h->h.segmentation.update_map, .last_ref_frame = h->h.refidx[0], .last_ref_frame_sign_bias = h->h.signbias[0], .golden_ref_frame = h->h.refidx[1], .golden_ref_frame_sign_bias = h->h.signbias[1], .alt_ref_frame = h->h.refidx[2], .alt_ref_frame_sign_bias = h->h.signbias[2], .lossless_flag = h->h.lossless, }, .filter_level = h->h.filter.level, .sharpness_level = h->h.filter.sharpness, .log2_tile_rows = h->h.tiling.log2_tile_rows, .log2_tile_columns = h->h.tiling.log2_tile_cols, .frame_header_length_in_bytes = h->h.uncompressed_header_size, .first_partition_size = h->h.compressed_header_size, .profile = h->h.profile, .bit_depth = h->h.bpp, }; for (i = 0; i < 7; i++) pic_param.mb_segment_tree_probs[i] = h->h.segmentation.prob[i]; if (h->h.segmentation.temporal) { for (i = 0; i < 3; i++) pic_param.segment_pred_probs[i] = h->h.segmentation.pred_prob[i]; } else { memset(pic_param.segment_pred_probs, 255, sizeof(pic_param.segment_pred_probs)); } for (i = 0; i < 8; i++) { if (h->refs[i].f->buf[0]) pic_param.reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f); else pic_param.reference_frames[i] = VA_INVALID_ID; } err = ff_vaapi_decode_make_param_buffer(avctx, pic, VAPictureParameterBufferType, &pic_param, sizeof(pic_param)); if (err < 0) { ff_vaapi_decode_cancel(avctx, pic); return err; } return 0; } static int vaapi_vp9_end_frame(AVCodecContext *avctx) { const VP9SharedContext *h = avctx->priv_data; VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private; return ff_vaapi_decode_issue(avctx, pic); } static int vaapi_vp9_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size) { const VP9SharedContext *h = avctx->priv_data; VAAPIDecodePicture *pic = h->frames[CUR_FRAME].hwaccel_picture_private; VASliceParameterBufferVP9 slice_param; int err, i; slice_param = (VASliceParameterBufferVP9) { .slice_data_size = size, .slice_data_offset = 0, .slice_data_flag = VA_SLICE_DATA_FLAG_ALL, }; for (i = 0; i < 8; i++) { slice_param.seg_param[i] = (VASegmentParameterVP9) { .segment_flags.fields = { .segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled, .segment_reference = h->h.segmentation.feat[i].ref_val, .segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled, }, .luma_dc_quant_scale = h->h.segmentation.feat[i].qmul[0][0], .luma_ac_quant_scale = h->h.segmentation.feat[i].qmul[0][1], .chroma_dc_quant_scale = h->h.segmentation.feat[i].qmul[1][0], .chroma_ac_quant_scale = h->h.segmentation.feat[i].qmul[1][1], }; memcpy(slice_param.seg_param[i].filter_level, h->h.segmentation.feat[i].lflvl, sizeof(slice_param.seg_param[i].filter_level)); } err = ff_vaapi_decode_make_slice_buffer(avctx, pic, &slice_param, sizeof(slice_param), buffer, size); if (err) { ff_vaapi_decode_cancel(avctx, pic); return err; } return 0; } const AVHWAccel ff_vp9_vaapi_hwaccel = { .name = "vp9_vaapi", .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_VP9, .pix_fmt = AV_PIX_FMT_VAAPI, .start_frame = vaapi_vp9_start_frame, .end_frame = vaapi_vp9_end_frame, .decode_slice = vaapi_vp9_decode_slice, .frame_priv_data_size = sizeof(VAAPIDecodePicture), .init = ff_vaapi_decode_init, .uninit = ff_vaapi_decode_uninit, .frame_params = ff_vaapi_common_frame_params, .priv_data_size = sizeof(VAAPIDecodeContext), .caps_internal = HWACCEL_CAP_ASYNC_SAFE, };