git.sesse.net Git - ffmpeg/blob - libavcodec/vdpau_vc1.c

   1 /*
   2  * VC-1 decode acceleration through VDPAU
   3  *
   4  * Copyright (c) 2008 NVIDIA
   5  * Copyright (c) 2013 Rémi Denis-Courmont
   6  *
   7  * This file is part of Libav.
   8  *
   9  * Libav is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * Libav is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with Libav; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include <vdpau/vdpau.h>
  25
  26 #include "avcodec.h"
  27 #include "vc1.h"
  28 #include "vdpau.h"
  29 #include "vdpau_internal.h"
  30
  31 static int vdpau_vc1_start_frame(AVCodecContext *avctx,
  32                                  const uint8_t *buffer, uint32_t size)
  33 {
  34     VC1Context * const v  = avctx->priv_data;
  35     MpegEncContext * const s = &v->s;
  36     Picture *pic          = s->current_picture_ptr;
  37     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
  38     VdpPictureInfoVC1 *info = &pic_ctx->info.vc1;
  39     VdpVideoSurface ref;
  40
  41     /*  fill LvPictureInfoVC1 struct */
  42     info->forward_reference  = VDP_INVALID_HANDLE;
  43     info->backward_reference = VDP_INVALID_HANDLE;
  44
  45     switch (s->pict_type) {
  46     case AV_PICTURE_TYPE_B:
  47         ref = ff_vdpau_get_surface_id(s->next_picture.f);
  48         assert(ref != VDP_INVALID_HANDLE);
  49         info->backward_reference = ref;
  50         /* fall-through */
  51     case AV_PICTURE_TYPE_P:
  52         ref = ff_vdpau_get_surface_id(s->last_picture.f);
  53         assert(ref != VDP_INVALID_HANDLE);
  54         info->forward_reference  = ref;
  55     }
  56
  57     info->slice_count       = 0;
  58     if (v->bi_type)
  59         info->picture_type  = 4;
  60     else
  61         info->picture_type  = s->pict_type - 1 + s->pict_type / 3;
  62
  63     info->frame_coding_mode = v->fcm ? (v->fcm + 1) : 0;
  64     info->postprocflag      = v->postprocflag;
  65     info->pulldown          = v->broadcast;
  66     info->interlace         = v->interlace;
  67     info->tfcntrflag        = v->tfcntrflag;
  68     info->finterpflag       = v->finterpflag;
  69     info->psf               = v->psf;
  70     info->dquant            = v->dquant;
  71     info->panscan_flag      = v->panscanflag;
  72     info->refdist_flag      = v->refdist_flag;
  73     info->quantizer         = v->quantizer_mode;
  74     info->extended_mv       = v->extended_mv;
  75     info->extended_dmv      = v->extended_dmv;
  76     info->overlap           = v->overlap;
  77     info->vstransform       = v->vstransform;
  78     info->loopfilter        = v->s.loop_filter;
  79     info->fastuvmc          = v->fastuvmc;
  80     info->range_mapy_flag   = v->range_mapy_flag;
  81     info->range_mapy        = v->range_mapy;
  82     info->range_mapuv_flag  = v->range_mapuv_flag;
  83     info->range_mapuv       = v->range_mapuv;
  84     /* Specific to simple/main profile only */
  85     info->multires          = v->multires;
  86     info->syncmarker        = v->resync_marker;
  87     info->rangered          = v->rangered | (v->rangeredfrm << 1);
  88     info->maxbframes        = v->s.max_b_frames;
  89     info->deblockEnable     = v->postprocflag & 1;
  90     info->pquant            = v->pq;
  91
  92     return ff_vdpau_common_start_frame(pic_ctx, buffer, size);
  93 }
  94
  95 static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
  96                                   const uint8_t *buffer, uint32_t size)
  97 {
  98     VC1Context * const v  = avctx->priv_data;
  99     MpegEncContext * const s = &v->s;
 100     Picture *pic          = s->current_picture_ptr;
 101     struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
 102     int val;
 103
 104     val = ff_vdpau_add_buffer(pic_ctx, buffer, size);
 105     if (val < 0)
 106         return val;
 107
 108     pic_ctx->info.vc1.slice_count++;
 109     return 0;
 110 }
 111
 112 static int vdpau_vc1_init(AVCodecContext *avctx)
 113 {
 114     VdpDecoderProfile profile;
 115
 116     switch (avctx->profile) {
 117     case FF_PROFILE_VC1_SIMPLE:
 118         profile = VDP_DECODER_PROFILE_VC1_SIMPLE;
 119         break;
 120     case FF_PROFILE_VC1_MAIN:
 121         profile = VDP_DECODER_PROFILE_VC1_MAIN;
 122         break;
 123     case FF_PROFILE_VC1_ADVANCED:
 124         profile = VDP_DECODER_PROFILE_VC1_ADVANCED;
 125         break;
 126     default:
 127         return AVERROR(ENOTSUP);
 128     }
 129
 130     return ff_vdpau_common_init(avctx, profile, avctx->level);
 131 }
 132
 133 #if CONFIG_WMV3_VDPAU_HWACCEL
 134 AVHWAccel ff_wmv3_vdpau_hwaccel = {
 135     .name           = "wm3_vdpau",
 136     .type           = AVMEDIA_TYPE_VIDEO,
 137     .id             = AV_CODEC_ID_WMV3,
 138     .pix_fmt        = AV_PIX_FMT_VDPAU,
 139     .start_frame    = vdpau_vc1_start_frame,
 140     .end_frame      = ff_vdpau_mpeg_end_frame,
 141     .decode_slice   = vdpau_vc1_decode_slice,
 142     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
 143     .init           = vdpau_vc1_init,
 144     .uninit         = ff_vdpau_common_uninit,
 145     .priv_data_size = sizeof(VDPAUContext),
 146 };
 147 #endif
 148
 149 AVHWAccel ff_vc1_vdpau_hwaccel = {
 150     .name           = "vc1_vdpau",
 151     .type           = AVMEDIA_TYPE_VIDEO,
 152     .id             = AV_CODEC_ID_VC1,
 153     .pix_fmt        = AV_PIX_FMT_VDPAU,
 154     .start_frame    = vdpau_vc1_start_frame,
 155     .end_frame      = ff_vdpau_mpeg_end_frame,
 156     .decode_slice   = vdpau_vc1_decode_slice,
 157     .frame_priv_data_size = sizeof(struct vdpau_picture_context),
 158     .init           = vdpau_vc1_init,
 159     .uninit         = ff_vdpau_common_uninit,
 160     .priv_data_size = sizeof(VDPAUContext),
 161 };