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 "hwaccel_internal.h"
  27 #include "vp9dec.h"
  28 #include "vdpau.h"
  29 #include "vdpau_internal.h"
  30
  31 static int vdpau_vp9_start_frame(AVCodecContext *avctx,
  32                                   const uint8_t *buffer, uint32_t size)
  33 {
  34     VP9Context *s = avctx->priv_data;
  35     VP9SharedContext *h = &(s->s);
  36     VP9Frame pic = h->frames[CUR_FRAME];
  37     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
  38     int i;
  39
  40     VdpPictureInfoVP9 *info = &pic_ctx->info.vp9;
  41     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
  42     if (!pixdesc) {
  43         return AV_PIX_FMT_NONE;
  44     }
  45
  46     info->width = avctx->width;
  47     info->height = avctx->height;
  48     /*  fill LvPictureInfoVP9 struct */
  49     info->lastReference  = VDP_INVALID_HANDLE;
  50     info->goldenReference = VDP_INVALID_HANDLE;
  51     info->altReference = VDP_INVALID_HANDLE;
  52
  53     if (h->refs[h->h.refidx[0]].f && h->refs[h->h.refidx[0]].f->private_ref) {
  54         info->lastReference               = ff_vdpau_get_surface_id(h->refs[h->h.refidx[0]].f);
  55     }
  56     if (h->refs[h->h.refidx[1]].f && h->refs[h->h.refidx[1]].f->private_ref) {
  57         info->goldenReference             = ff_vdpau_get_surface_id(h->refs[h->h.refidx[1]].f);
  58     }
  59     if (h->refs[h->h.refidx[2]].f && h->refs[h->h.refidx[2]].f->private_ref) {
  60         info->altReference                = ff_vdpau_get_surface_id(h->refs[h->h.refidx[2]].f);
  61     }
  62
  63     info->profile                  = h->h.profile;
  64     info->frameContextIdx          = h->h.framectxid;
  65     info->keyFrame                 = h->h.keyframe;
  66     info->showFrame                = !h->h.invisible;
  67     info->errorResilient           = h->h.errorres;
  68     info->frameParallelDecoding    = h->h.parallelmode;
  69
  70     info->subSamplingX             = pixdesc->log2_chroma_w;
  71     info->subSamplingY             = pixdesc->log2_chroma_h;
  72
  73     info->intraOnly                = h->h.intraonly;
  74     info->allowHighPrecisionMv     = h->h.keyframe ? 0 : h->h.highprecisionmvs;
  75     info->refreshEntropyProbs      = h->h.refreshctx;
  76
  77     info->bitDepthMinus8Luma       = pixdesc->comp[0].depth - 8;
  78     info->bitDepthMinus8Chroma     = pixdesc->comp[1].depth - 8;
  79
  80     info->loopFilterLevel          = h->h.filter.level;
  81     info->loopFilterSharpness      = h->h.filter.sharpness;
  82     info->modeRefLfEnabled         = h->h.lf_delta.enabled;
  83
  84     info->log2TileColumns          = h->h.tiling.log2_tile_cols;
  85     info->log2TileRows             = h->h.tiling.log2_tile_rows;
  86
  87     info->segmentEnabled           = h->h.segmentation.enabled;
  88     info->segmentMapUpdate         = h->h.segmentation.update_map;
  89     info->segmentMapTemporalUpdate = h->h.segmentation.temporal;
  90     info->segmentFeatureMode       = h->h.segmentation.absolute_vals;
  91
  92     info->qpYAc                    = h->h.yac_qi;
  93     info->qpYDc                    = h->h.ydc_qdelta;
  94     info->qpChDc                   = h->h.uvdc_qdelta;
  95     info->qpChAc                   = h->h.uvac_qdelta;
  96
  97     info->resetFrameContext        = h->h.resetctx;
  98     info->mcompFilterType          = h->h.filtermode ^ (h->h.filtermode <= 1);
  99     info->uncompressedHeaderSize   = h->h.uncompressed_header_size;
 100     info->compressedHeaderSize     = h->h.compressed_header_size;
 101     info->refFrameSignBias[0]      = 0;
 102
 103
 104     for (i = 0; i < FF_ARRAY_ELEMS(info->mbModeLfDelta); i++)
 105         info->mbModeLfDelta[i] = h->h.lf_delta.mode[i];
 106
 107     for (i = 0; i < FF_ARRAY_ELEMS(info->mbRefLfDelta); i++)
 108         info->mbRefLfDelta[i] = h->h.lf_delta.ref[i];
 109
 110     for (i = 0; i < FF_ARRAY_ELEMS(info->mbSegmentTreeProbs); i++)
 111         info->mbSegmentTreeProbs[i] = h->h.segmentation.prob[i];
 112
 113     for (i = 0; i < FF_ARRAY_ELEMS(info->activeRefIdx); i++) {
 114         info->activeRefIdx[i] = h->h.refidx[i];
 115         info->segmentPredProbs[i] = h->h.segmentation.pred_prob[i];
 116         info->refFrameSignBias[i + 1] = h->h.signbias[i];
 117     }
 118
 119     for (i = 0; i < FF_ARRAY_ELEMS(info->segmentFeatureEnable); i++) {
 120         info->segmentFeatureEnable[i][0] = h->h.segmentation.feat[i].q_enabled;
 121         info->segmentFeatureEnable[i][1] = h->h.segmentation.feat[i].lf_enabled;
 122         info->segmentFeatureEnable[i][2] = h->h.segmentation.feat[i].ref_enabled;
 123         info->segmentFeatureEnable[i][3] = h->h.segmentation.feat[i].skip_enabled;
 124
 125         info->segmentFeatureData[i][0] = h->h.segmentation.feat[i].q_val;
 126         info->segmentFeatureData[i][1] = h->h.segmentation.feat[i].lf_val;
 127         info->segmentFeatureData[i][2] = h->h.segmentation.feat[i].ref_val;
 128         info->segmentFeatureData[i][3] = 0;
 129     }
 130
 131     switch (avctx->colorspace) {
 132     default:
 133     case AVCOL_SPC_UNSPECIFIED:
 134         info->colorSpace = 0;
 135         break;
 136     case AVCOL_SPC_BT470BG:
 137         info->colorSpace = 1;
 138         break;
 139     case AVCOL_SPC_BT709:
 140         info->colorSpace = 2;
 141         break;
 142     case AVCOL_SPC_SMPTE170M:
 143         info->colorSpace = 3;
 144         break;
 145     case AVCOL_SPC_SMPTE240M:
 146         info->colorSpace = 4;
 147         break;
 148     case AVCOL_SPC_BT2020_NCL:
 149         info->colorSpace = 5;
 150         break;
 151     case AVCOL_SPC_RESERVED:
 152         info->colorSpace = 6;
 153         break;
 154     case AVCOL_SPC_RGB:
 155         info->colorSpace = 7;
 156         break;
 157     }
 158
 159     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
 160
 161 }
 162
 163 static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
 164
 165 static int vdpau_vp9_decode_slice(AVCodecContext *avctx,
 166                                    const uint8_t *buffer, uint32_t size)
 167 {
 168     VP9SharedContext *h = avctx->priv_data;
 169     VP9Frame pic = h->frames[CUR_FRAME];
 170     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 171
 172     int val;
 173
 174     val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
 175     if (val)
 176         return val;
 177
 178     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
 179     if (val)
 180         return val;
 181
 182     return 0;
 183 }
 184
 185 static int vdpau_vp9_end_frame(AVCodecContext *avctx)
 186 {
 187     VP9SharedContext *h = avctx->priv_data;
 188     VP9Frame pic = h->frames[CUR_FRAME];
 189     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 190
 191     int val;
 192
 193     val = ff_vdpau_common_end_frame(avctx, pic.tf.f, pic_ctx);
 194     if (val < 0)
 195         return val;
 196
 197     return 0;
 198 }
 199
 200 static int vdpau_vp9_init(AVCodecContext *avctx)
 201 {
 202     VdpDecoderProfile profile;
 203     uint32_t level = avctx->level;
 204
 205     switch (avctx->profile) {
 206     case AV_PROFILE_VP9_0:
 207         profile = VDP_DECODER_PROFILE_VP9_PROFILE_0;
 208         break;
 209     case AV_PROFILE_VP9_1:
 210         profile = VDP_DECODER_PROFILE_VP9_PROFILE_1;
 211         break;
 212     case AV_PROFILE_VP9_2:
 213         profile = VDP_DECODER_PROFILE_VP9_PROFILE_2;
 214         break;
 215     case AV_PROFILE_VP9_3:
 216         profile = VDP_DECODER_PROFILE_VP9_PROFILE_3;
 217         break;
 218     default:
 219         return AVERROR(ENOTSUP);
 220     }
 221
 222     return ff_vdpau_common_init(avctx, profile, level);
 223 }
 224
 225 const FFHWAccel ff_vp9_vdpau_hwaccel = {
 226     .p.name         = "vp9_vdpau",
 227     .p.type         = AVMEDIA_TYPE_VIDEO,
 228     .p.id           = AV_CODEC_ID_VP9,
 229     .p.pix_fmt      = AV_PIX_FMT_VDPAU,
 230     .start_frame    = vdpau_vp9_start_frame,
 231     .end_frame      = vdpau_vp9_end_frame,
 232     .decode_slice   = vdpau_vp9_decode_slice,
 233     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
 234     .init           = vdpau_vp9_init,
 235     .uninit         = ff_vdpau_common_uninit,
 236     .frame_params   = ff_vdpau_common_frame_params,
 237     .priv_data_size = sizeof(VDPAUContext),
 238     .caps_internal  = HWACCEL_CAP_ASYNC_SAFE,
 239 };