mirror of
https://github.com/FFmpeg/FFmpeg.git
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d7c2b75681
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
169 lines
6.6 KiB
C
169 lines
6.6 KiB
C
/*
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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 "vaapi_internal.h"
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#include "vp9.h"
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static void fill_picture_parameters(AVCodecContext *avctx,
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const VP9SharedContext *h,
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VADecPictureParameterBufferVP9 *pp)
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{
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const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
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int i;
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pp->frame_width = avctx->width;
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pp->frame_height = avctx->height;
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pp->frame_header_length_in_bytes = h->h.uncompressed_header_size;
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pp->first_partition_size = h->h.compressed_header_size;
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pp->profile = h->h.profile;
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pp->filter_level = h->h.filter.level;
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pp->sharpness_level = h->h.filter.sharpness;
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pp->log2_tile_rows = h->h.tiling.log2_tile_rows;
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pp->log2_tile_columns = h->h.tiling.log2_tile_cols;
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pp->pic_fields.bits.subsampling_x = pixdesc->log2_chroma_w;
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pp->pic_fields.bits.subsampling_y = pixdesc->log2_chroma_h;
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pp->pic_fields.bits.frame_type = !h->h.keyframe;
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pp->pic_fields.bits.show_frame = !h->h.invisible;
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pp->pic_fields.bits.error_resilient_mode = h->h.errorres;
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pp->pic_fields.bits.intra_only = h->h.intraonly;
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pp->pic_fields.bits.allow_high_precision_mv = h->h.keyframe ? 0 : h->h.highprecisionmvs;
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pp->pic_fields.bits.mcomp_filter_type = h->h.filtermode ^ (h->h.filtermode <= 1);
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pp->pic_fields.bits.frame_parallel_decoding_mode = h->h.parallelmode;
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pp->pic_fields.bits.reset_frame_context = h->h.resetctx;
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pp->pic_fields.bits.refresh_frame_context = h->h.refreshctx;
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pp->pic_fields.bits.frame_context_idx = h->h.framectxid;
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pp->pic_fields.bits.segmentation_enabled = h->h.segmentation.enabled;
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pp->pic_fields.bits.segmentation_temporal_update = h->h.segmentation.temporal;
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pp->pic_fields.bits.segmentation_update_map = h->h.segmentation.update_map;
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pp->pic_fields.bits.last_ref_frame = h->h.refidx[0];
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pp->pic_fields.bits.last_ref_frame_sign_bias = h->h.signbias[0];
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pp->pic_fields.bits.golden_ref_frame = h->h.refidx[1];
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pp->pic_fields.bits.golden_ref_frame_sign_bias = h->h.signbias[1];
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pp->pic_fields.bits.alt_ref_frame = h->h.refidx[2];
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pp->pic_fields.bits.alt_ref_frame_sign_bias = h->h.signbias[2];
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pp->pic_fields.bits.lossless_flag = h->h.lossless;
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for (i = 0; i < 7; i++)
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pp->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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pp->segment_pred_probs[i] = h->h.segmentation.pred_prob[i];
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} else {
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memset(pp->segment_pred_probs, 255, sizeof(pp->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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pp->reference_frames[i] = ff_vaapi_get_surface_id(h->refs[i].f);
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} else {
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pp->reference_frames[i] = VA_INVALID_ID;
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}
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}
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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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FFVAContext * const vactx = ff_vaapi_get_context(avctx);
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VADecPictureParameterBufferVP9 *pic_param;
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vactx->slice_param_size = sizeof(VASliceParameterBufferVP9);
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pic_param = ff_vaapi_alloc_pic_param(vactx, sizeof(VADecPictureParameterBufferVP9));
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if (!pic_param)
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return -1;
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fill_picture_parameters(avctx, h, pic_param);
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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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FFVAContext * const vactx = ff_vaapi_get_context(avctx);
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const VP9SharedContext *h = avctx->priv_data;
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int ret;
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ret = ff_vaapi_commit_slices(vactx);
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if (ret < 0)
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goto finish;
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ret = ff_vaapi_render_picture(vactx, ff_vaapi_get_surface_id(h->frames[CUR_FRAME].tf.f));
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if (ret < 0)
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goto finish;
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finish:
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ff_vaapi_common_end_frame(avctx);
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return ret;
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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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FFVAContext * const vactx = ff_vaapi_get_context(avctx);
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const VP9SharedContext *h = avctx->priv_data;
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VASliceParameterBufferVP9 *slice_param;
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int i;
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slice_param = (VASliceParameterBufferVP9*)ff_vaapi_alloc_slice(vactx, buffer, size);
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if (!slice_param)
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return -1;
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for (i = 0; i < 8; i++) {
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slice_param->seg_param[i].segment_flags.fields.segment_reference_enabled = h->h.segmentation.feat[i].ref_enabled;
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slice_param->seg_param[i].segment_flags.fields.segment_reference = h->h.segmentation.feat[i].ref_val;
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slice_param->seg_param[i].segment_flags.fields.segment_reference_skipped = h->h.segmentation.feat[i].skip_enabled;
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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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slice_param->seg_param[i].luma_dc_quant_scale = h->h.segmentation.feat[i].qmul[0][0];
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slice_param->seg_param[i].luma_ac_quant_scale = h->h.segmentation.feat[i].qmul[0][1];
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slice_param->seg_param[i].chroma_dc_quant_scale = h->h.segmentation.feat[i].qmul[1][0];
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slice_param->seg_param[i].chroma_ac_quant_scale = h->h.segmentation.feat[i].qmul[1][1];
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}
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return 0;
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}
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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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.init = ff_vaapi_context_init,
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.uninit = ff_vaapi_context_fini,
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.priv_data_size = sizeof(FFVAContext),
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};
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