git.sesse.net Git - ffmpeg/blob - libavcodec/vdpau_vp9.c

   1 /*
   2  * VP9 HW decode acceleration through VDPAU
   3  *
   4  * Copyright (c) 2019 Manoj Gupta Bonda
   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 Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22
  23 #include <vdpau/vdpau.h>
  24 #include "libavutil/pixdesc.h"
  25 #include "avcodec.h"
  26 #include "internal.h"
  27 #include "vp9data.h"
  28 #include "vp9dec.h"
  29 #include "hwaccel.h"
  30 #include "vdpau.h"
  31 #include "vdpau_internal.h"
  32
  33 static int vdpau_vp9_start_frame(AVCodecContext *avctx,
  34                                   const uint8_t *buffer, uint32_t size)
  35 {
  36     VP9Context *s = avctx->priv_data;
  37     VP9SharedContext *h = &(s->s);
  38     VP9Frame pic = h->frames[CUR_FRAME];
  39     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
  40     int i;
  41
  42     VdpPictureInfoVP9 *info = &pic_ctx->info.vp9;
  43     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
  44     if (!pixdesc) {
  45         return AV_PIX_FMT_NONE;
  46     }
  47
  48     info->width = avctx->width;
  49     info->height = avctx->height;
  50     /*  fill LvPictureInfoVP9 struct */
  51     info->lastReference  = VDP_INVALID_HANDLE;
  52     info->goldenReference = VDP_INVALID_HANDLE;
  53     info->altReference = VDP_INVALID_HANDLE;
  54
  55     if (h->refs[h->h.refidx[0]].f && h->refs[h->h.refidx[0]].f->private_ref) {
  56         info->lastReference               = ff_vdpau_get_surface_id(h->refs[h->h.refidx[0]].f);
  57     }
  58     if (h->refs[h->h.refidx[1]].f && h->refs[h->h.refidx[1]].f->private_ref) {
  59         info->goldenReference             = ff_vdpau_get_surface_id(h->refs[h->h.refidx[1]].f);
  60     }
  61     if (h->refs[h->h.refidx[2]].f && h->refs[h->h.refidx[2]].f->private_ref) {
  62         info->altReference                = ff_vdpau_get_surface_id(h->refs[h->h.refidx[2]].f);
  63     }
  64
  65     info->profile                  = h->h.profile;
  66     info->frameContextIdx          = h->h.framectxid;
  67     info->keyFrame                 = h->h.keyframe;
  68     info->showFrame                = !h->h.invisible;
  69     info->errorResilient           = h->h.errorres;
  70     info->frameParallelDecoding    = h->h.parallelmode;
  71
  72     info->subSamplingX             = pixdesc->log2_chroma_w;
  73     info->subSamplingY             = pixdesc->log2_chroma_h;
  74
  75     info->intraOnly                = h->h.intraonly;
  76     info->allowHighPrecisionMv     = h->h.keyframe ? 0 : h->h.highprecisionmvs;
  77     info->refreshEntropyProbs      = h->h.refreshctx;
  78
  79     info->bitDepthMinus8Luma       = pixdesc->comp[0].depth - 8;
  80     info->bitDepthMinus8Chroma     = pixdesc->comp[1].depth - 8;
  81
  82     info->loopFilterLevel          = h->h.filter.level;
  83     info->loopFilterSharpness      = h->h.filter.sharpness;
  84     info->modeRefLfEnabled         = h->h.lf_delta.enabled;
  85
  86     info->log2TileColumns          = h->h.tiling.log2_tile_cols;
  87     info->log2TileRows             = h->h.tiling.log2_tile_rows;
  88
  89     info->segmentEnabled           = h->h.segmentation.enabled;
  90     info->segmentMapUpdate         = h->h.segmentation.update_map;
  91     info->segmentMapTemporalUpdate = h->h.segmentation.temporal;
  92     info->segmentFeatureMode       = h->h.segmentation.absolute_vals;
  93
  94     info->qpYAc                    = h->h.yac_qi;
  95     info->qpYDc                    = h->h.ydc_qdelta;
  96     info->qpChDc                   = h->h.uvdc_qdelta;
  97     info->qpChAc                   = h->h.uvac_qdelta;
  98
  99     info->resetFrameContext        = h->h.resetctx;
 100     info->mcompFilterType          = h->h.filtermode ^ (h->h.filtermode <= 1);
 101     info->uncompressedHeaderSize   = h->h.uncompressed_header_size;
 102     info->compressedHeaderSize     = h->h.compressed_header_size;
 103     info->refFrameSignBias[0]      = 0;
 104
 105
 106     for (i = 0; i < FF_ARRAY_ELEMS(info->mbModeLfDelta); i++)
 107         info->mbModeLfDelta[i] = h->h.lf_delta.mode[i];
 108
 109     for (i = 0; i < FF_ARRAY_ELEMS(info->mbRefLfDelta); i++)
 110         info->mbRefLfDelta[i] = h->h.lf_delta.ref[i];
 111
 112     for (i = 0; i < FF_ARRAY_ELEMS(info->mbSegmentTreeProbs); i++)
 113         info->mbSegmentTreeProbs[i] = h->h.segmentation.prob[i];
 114
 115     for (i = 0; i < FF_ARRAY_ELEMS(info->activeRefIdx); i++) {
 116         info->activeRefIdx[i] = h->h.refidx[i];
 117         info->segmentPredProbs[i] = h->h.segmentation.pred_prob[i];
 118         info->refFrameSignBias[i + 1] = h->h.signbias[i];
 119     }
 120
 121     for (i = 0; i < FF_ARRAY_ELEMS(info->segmentFeatureEnable); i++) {
 122         info->segmentFeatureEnable[i][0] = h->h.segmentation.feat[i].q_enabled;
 123         info->segmentFeatureEnable[i][1] = h->h.segmentation.feat[i].lf_enabled;
 124         info->segmentFeatureEnable[i][2] = h->h.segmentation.feat[i].ref_enabled;
 125         info->segmentFeatureEnable[i][3] = h->h.segmentation.feat[i].skip_enabled;
 126
 127         info->segmentFeatureData[i][0] = h->h.segmentation.feat[i].q_val;
 128         info->segmentFeatureData[i][1] = h->h.segmentation.feat[i].lf_val;
 129         info->segmentFeatureData[i][2] = h->h.segmentation.feat[i].ref_val;
 130         info->segmentFeatureData[i][3] = 0;
 131     }
 132
 133     switch (avctx->colorspace) {
 134     default:
 135     case AVCOL_SPC_UNSPECIFIED:
 136         info->colorSpace = 0;
 137         break;
 138     case AVCOL_SPC_BT470BG:
 139         info->colorSpace = 1;
 140         break;
 141     case AVCOL_SPC_BT709:
 142         info->colorSpace = 2;
 143         break;
 144     case AVCOL_SPC_SMPTE170M:
 145         info->colorSpace = 3;
 146         break;
 147     case AVCOL_SPC_SMPTE240M:
 148         info->colorSpace = 4;
 149         break;
 150     case AVCOL_SPC_BT2020_NCL:
 151         info->colorSpace = 5;
 152         break;
 153     case AVCOL_SPC_RESERVED:
 154         info->colorSpace = 6;
 155         break;
 156     case AVCOL_SPC_RGB:
 157         info->colorSpace = 7;
 158         break;
 159     }
 160
 161     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
 162
 163 }
 164
 165 static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
 166
 167 static int vdpau_vp9_decode_slice(AVCodecContext *avctx,
 168                                    const uint8_t *buffer, uint32_t size)
 169 {
 170     VP9SharedContext *h = avctx->priv_data;
 171     VP9Frame pic = h->frames[CUR_FRAME];
 172     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 173
 174     int val;
 175
 176     val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
 177     if (val)
 178         return val;
 179
 180     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
 181     if (val)
 182         return val;
 183
 184     return 0;
 185 }
 186
 187 static int vdpau_vp9_end_frame(AVCodecContext *avctx)
 188 {
 189     VP9SharedContext *h = avctx->priv_data;
 190     VP9Frame pic = h->frames[CUR_FRAME];
 191     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 192
 193     int val;
 194
 195     val = ff_vdpau_common_end_frame(avctx, pic.tf.f, pic_ctx);
 196     if (val < 0)
 197         return val;
 198
 199     return 0;
 200 }
 201
 202 static int vdpau_vp9_init(AVCodecContext *avctx)
 203 {
 204     VdpDecoderProfile profile;
 205     uint32_t level = avctx->level;
 206
 207     switch (avctx->profile) {
 208     case FF_PROFILE_VP9_0:
 209         profile = VDP_DECODER_PROFILE_VP9_PROFILE_0;
 210         break;
 211     case FF_PROFILE_VP9_1:
 212         profile = VDP_DECODER_PROFILE_VP9_PROFILE_1;
 213         break;
 214     case FF_PROFILE_VP9_2:
 215         profile = VDP_DECODER_PROFILE_VP9_PROFILE_2;
 216         break;
 217     case FF_PROFILE_VP9_3:
 218         profile = VDP_DECODER_PROFILE_VP9_PROFILE_3;
 219         break;
 220     default:
 221         return AVERROR(ENOTSUP);
 222     }
 223
 224     return ff_vdpau_common_init(avctx, profile, level);
 225 }
 226
 227 const AVHWAccel ff_vp9_vdpau_hwaccel = {
 228     .name           = "vp9_vdpau",
 229     .type           = AVMEDIA_TYPE_VIDEO,
 230     .id             = AV_CODEC_ID_VP9,
 231     .pix_fmt        = AV_PIX_FMT_VDPAU,
 232     .start_frame    = vdpau_vp9_start_frame,
 233     .end_frame      = vdpau_vp9_end_frame,
 234     .decode_slice   = vdpau_vp9_decode_slice,
 235     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
 236     .init           = vdpau_vp9_init,
 237     .uninit         = ff_vdpau_common_uninit,
 238     .frame_params   = ff_vdpau_common_frame_params,
 239     .priv_data_size = sizeof(VDPAUContext),
 240     .caps_internal  = HWACCEL_CAP_ASYNC_SAFE,
 241 };