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     const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
  39     if (!pixdesc) {
  40         return AV_PIX_FMT_NONE;
  41     }
  42
  43     VP9Frame pic = h->frames[CUR_FRAME];
  44     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
  45     int i;
  46
  47     VdpPictureInfoVP9 *info = &pic_ctx->info.vp9;
  48
  49     info->width = avctx->width;
  50     info->height = avctx->height;
  51     /*  fill LvPictureInfoVP9 struct */
  52     info->lastReference  = VDP_INVALID_HANDLE;
  53     info->goldenReference = VDP_INVALID_HANDLE;
  54     info->altReference = VDP_INVALID_HANDLE;
  55
  56     if (h->refs[h->h.refidx[0]].f && h->refs[h->h.refidx[0]].f->private_ref) {
  57         info->lastReference               = ff_vdpau_get_surface_id(h->refs[h->h.refidx[0]].f);
  58     }
  59     if (h->refs[h->h.refidx[1]].f && h->refs[h->h.refidx[1]].f->private_ref) {
  60         info->goldenReference             = ff_vdpau_get_surface_id(h->refs[h->h.refidx[1]].f);
  61     }
  62     if (h->refs[h->h.refidx[2]].f && h->refs[h->h.refidx[2]].f->private_ref) {
  63         info->altReference                = ff_vdpau_get_surface_id(h->refs[h->h.refidx[2]].f);
  64     }
  65
  66     info->profile                  = h->h.profile;
  67     info->frameContextIdx          = h->h.framectxid;
  68     info->keyFrame                 = h->h.keyframe;
  69     info->showFrame                = !h->h.invisible;
  70     info->errorResilient           = h->h.errorres;
  71     info->frameParallelDecoding    = h->h.parallelmode;
  72
  73     info->subSamplingX             = pixdesc->log2_chroma_w;
  74     info->subSamplingY             = pixdesc->log2_chroma_h;
  75
  76     info->intraOnly                = h->h.intraonly;
  77     info->allowHighPrecisionMv     = h->h.keyframe ? 0 : h->h.highprecisionmvs;
  78     info->refreshEntropyProbs      = h->h.refreshctx;
  79
  80     info->bitDepthMinus8Luma       = pixdesc->comp[0].depth - 8;
  81     info->bitDepthMinus8Chroma     = pixdesc->comp[1].depth - 8;
  82
  83     info->loopFilterLevel          = h->h.filter.level;
  84     info->loopFilterSharpness      = h->h.filter.sharpness;
  85     info->modeRefLfEnabled         = h->h.lf_delta.enabled;
  86
  87     info->log2TileColumns          = h->h.tiling.log2_tile_cols;
  88     info->log2TileRows             = h->h.tiling.log2_tile_rows;
  89
  90     info->segmentEnabled           = h->h.segmentation.enabled;
  91     info->segmentMapUpdate         = h->h.segmentation.update_map;
  92     info->segmentMapTemporalUpdate = h->h.segmentation.temporal;
  93     info->segmentFeatureMode       = h->h.segmentation.absolute_vals;
  94
  95     info->qpYAc                    = h->h.yac_qi;
  96     info->qpYDc                    = h->h.ydc_qdelta;
  97     info->qpChDc                   = h->h.uvdc_qdelta;
  98     info->qpChAc                   = h->h.uvac_qdelta;
  99
 100     info->resetFrameContext        = h->h.resetctx;
 101     info->mcompFilterType          = h->h.filtermode ^ (h->h.filtermode <= 1);
 102     info->uncompressedHeaderSize   = h->h.uncompressed_header_size;
 103     info->compressedHeaderSize     = h->h.compressed_header_size;
 104     info->refFrameSignBias[0]      = 0;
 105
 106
 107     for (i = 0; i < FF_ARRAY_ELEMS(info->mbModeLfDelta); i++)
 108         info->mbModeLfDelta[i] = h->h.lf_delta.mode[i];
 109
 110     for (i = 0; i < FF_ARRAY_ELEMS(info->mbRefLfDelta); i++)
 111         info->mbRefLfDelta[i] = h->h.lf_delta.ref[i];
 112
 113     for (i = 0; i < FF_ARRAY_ELEMS(info->mbSegmentTreeProbs); i++)
 114         info->mbSegmentTreeProbs[i] = h->h.segmentation.prob[i];
 115
 116     for (i = 0; i < FF_ARRAY_ELEMS(info->activeRefIdx); i++) {
 117         info->activeRefIdx[i] = h->h.refidx[i];
 118         info->segmentPredProbs[i] = h->h.segmentation.pred_prob[i];
 119         info->refFrameSignBias[i + 1] = h->h.signbias[i];
 120     }
 121
 122     for (i = 0; i < FF_ARRAY_ELEMS(info->segmentFeatureEnable); i++) {
 123         info->segmentFeatureEnable[i][0] = h->h.segmentation.feat[i].q_enabled;
 124         info->segmentFeatureEnable[i][1] = h->h.segmentation.feat[i].lf_enabled;
 125         info->segmentFeatureEnable[i][2] = h->h.segmentation.feat[i].ref_enabled;
 126         info->segmentFeatureEnable[i][3] = h->h.segmentation.feat[i].skip_enabled;
 127
 128         info->segmentFeatureData[i][0] = h->h.segmentation.feat[i].q_val;
 129         info->segmentFeatureData[i][1] = h->h.segmentation.feat[i].lf_val;
 130         info->segmentFeatureData[i][2] = h->h.segmentation.feat[i].ref_val;
 131         info->segmentFeatureData[i][3] = 0;
 132     }
 133
 134     switch (avctx->colorspace) {
 135     default:
 136     case AVCOL_SPC_UNSPECIFIED:
 137         info->colorSpace = 0;
 138         break;
 139     case AVCOL_SPC_BT470BG:
 140         info->colorSpace = 1;
 141         break;
 142     case AVCOL_SPC_BT709:
 143         info->colorSpace = 2;
 144         break;
 145     case AVCOL_SPC_SMPTE170M:
 146         info->colorSpace = 3;
 147         break;
 148     case AVCOL_SPC_SMPTE240M:
 149         info->colorSpace = 4;
 150         break;
 151     case AVCOL_SPC_BT2020_NCL:
 152         info->colorSpace = 5;
 153         break;
 154     case AVCOL_SPC_RESERVED:
 155         info->colorSpace = 6;
 156         break;
 157     case AVCOL_SPC_RGB:
 158         info->colorSpace = 7;
 159         break;
 160     }
 161
 162     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
 163
 164 }
 165
 166 static const uint8_t start_code_prefix[3] = { 0x00, 0x00, 0x01 };
 167
 168 static int vdpau_vp9_decode_slice(AVCodecContext *avctx,
 169                                    const uint8_t *buffer, uint32_t size)
 170 {
 171     VP9SharedContext *h = avctx->priv_data;
 172     VP9Frame pic = h->frames[CUR_FRAME];
 173     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 174
 175     int val;
 176
 177     val = ff_vdpau_add_buffer(pic_ctx, start_code_prefix, 3);
 178     if (val)
 179         return val;
 180
 181     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
 182     if (val)
 183         return val;
 184
 185     return 0;
 186 }
 187
 188 static int vdpau_vp9_end_frame(AVCodecContext *avctx)
 189 {
 190     VP9SharedContext *h = avctx->priv_data;
 191     VP9Frame pic = h->frames[CUR_FRAME];
 192     struct vdpau_picture_context *pic_ctx = pic.hwaccel_picture_private;
 193
 194     int val;
 195
 196     val = ff_vdpau_common_end_frame(avctx, pic.tf.f, pic_ctx);
 197     if (val < 0)
 198         return val;
 199
 200     return 0;
 201 }
 202
 203 static int vdpau_vp9_init(AVCodecContext *avctx)
 204 {
 205     VdpDecoderProfile profile;
 206     uint32_t level = avctx->level;
 207
 208     switch (avctx->profile) {
 209     case FF_PROFILE_VP9_0:
 210         profile = VDP_DECODER_PROFILE_VP9_PROFILE_0;
 211         break;
 212     case FF_PROFILE_VP9_1:
 213         profile = VDP_DECODER_PROFILE_VP9_PROFILE_1;
 214         break;
 215     case FF_PROFILE_VP9_2:
 216         profile = VDP_DECODER_PROFILE_VP9_PROFILE_2;
 217         break;
 218     case FF_PROFILE_VP9_3:
 219         profile = VDP_DECODER_PROFILE_VP9_PROFILE_3;
 220         break;
 221     default:
 222         return AVERROR(ENOTSUP);
 223     }
 224
 225     return ff_vdpau_common_init(avctx, profile, level);
 226 }
 227
 228 const AVHWAccel ff_vp9_vdpau_hwaccel = {
 229     .name           = "vp9_vdpau",
 230     .type           = AVMEDIA_TYPE_VIDEO,
 231     .id             = AV_CODEC_ID_VP9,
 232     .pix_fmt        = AV_PIX_FMT_VDPAU,
 233     .start_frame    = vdpau_vp9_start_frame,
 234     .end_frame      = vdpau_vp9_end_frame,
 235     .decode_slice   = vdpau_vp9_decode_slice,
 236     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
 237     .init           = vdpau_vp9_init,
 238     .uninit         = ff_vdpau_common_uninit,
 239     .frame_params   = ff_vdpau_common_frame_params,
 240     .priv_data_size = sizeof(VDPAUContext),
 241     .caps_internal  = HWACCEL_CAP_ASYNC_SAFE,
 242 };