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