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     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  36     MpegEncContext * const s = &v->s;
  37     VdpPictureInfoVC1 *info = &hwctx->info.vc1;
  38     VdpVideoSurface ref;
  39
  40     /*  fill LvPictureInfoVC1 struct */
  41     info->forward_reference  = VDP_INVALID_HANDLE;
  42     info->backward_reference = VDP_INVALID_HANDLE;
  43
  44     switch (s->pict_type) {
  45     case AV_PICTURE_TYPE_B:
  46         ref = ff_vdpau_get_surface_id(&s->next_picture);
  47         assert(ref != VDP_INVALID_HANDLE);
  48         info->backward_reference = ref;
  49         /* fall-through */
  50     case AV_PICTURE_TYPE_P:
  51         ref = ff_vdpau_get_surface_id(&s->last_picture);
  52         assert(ref != VDP_INVALID_HANDLE);
  53         info->forward_reference  = ref;
  54     }
  55
  56     info->slice_count       = 0;
  57     if (v->bi_type)
  58         info->picture_type  = 4;
  59     else
  60         info->picture_type  = s->pict_type - 1 + s->pict_type / 3;
  61
  62     info->frame_coding_mode = v->fcm;
  63     info->postprocflag      = v->postprocflag;
  64     info->pulldown          = v->broadcast;
  65     info->interlace         = v->interlace;
  66     info->tfcntrflag        = v->tfcntrflag;
  67     info->finterpflag       = v->finterpflag;
  68     info->psf               = v->psf;
  69     info->dquant            = v->dquant;
  70     info->panscan_flag      = v->panscanflag;
  71     info->refdist_flag      = v->refdist_flag;
  72     info->quantizer         = v->quantizer_mode;
  73     info->extended_mv       = v->extended_mv;
  74     info->extended_dmv      = v->extended_dmv;
  75     info->overlap           = v->overlap;
  76     info->vstransform       = v->vstransform;
  77     info->loopfilter        = v->s.loop_filter;
  78     info->fastuvmc          = v->fastuvmc;
  79     info->range_mapy_flag   = v->range_mapy_flag;
  80     info->range_mapy        = v->range_mapy;
  81     info->range_mapuv_flag  = v->range_mapuv_flag;
  82     info->range_mapuv       = v->range_mapuv;
  83     /* Specific to simple/main profile only */
  84     info->multires          = v->multires;
  85     info->syncmarker        = v->s.resync_marker;
  86     info->rangered          = v->rangered | (v->rangeredfrm << 1);
  87     info->maxbframes        = v->s.max_b_frames;
  88     info->deblockEnable     = v->postprocflag & 1;
  89     info->pquant            = v->pq;
  90
  91     return ff_vdpau_common_start_frame(avctx, buffer, size);
  92 }
  93
  94 static int vdpau_vc1_decode_slice(AVCodecContext *avctx,
  95                                   const uint8_t *buffer, uint32_t size)
  96 {
  97     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  98     int val;
  99
 100     val = ff_vdpau_add_buffer(avctx, buffer, size);
 101     if (val < 0)
 102         return val;
 103
 104     hwctx->info.vc1.slice_count++;
 105     return 0;
 106 }
 107
 108 #if CONFIG_WMV3_VDPAU_HWACCEL
 109 AVHWAccel ff_wmv3_vdpau_hwaccel = {
 110     .name           = "wm3_vdpau",
 111     .type           = AVMEDIA_TYPE_VIDEO,
 112     .id             = AV_CODEC_ID_WMV3,
 113     .pix_fmt        = AV_PIX_FMT_VDPAU,
 114     .start_frame    = vdpau_vc1_start_frame,
 115     .end_frame      = ff_vdpau_common_end_frame,
 116     .decode_slice   = vdpau_vc1_decode_slice,
 117 };
 118 #endif
 119
 120 AVHWAccel ff_vc1_vdpau_hwaccel = {
 121     .name           = "vc1_vdpau",
 122     .type           = AVMEDIA_TYPE_VIDEO,
 123     .id             = AV_CODEC_ID_VC1,
 124     .pix_fmt        = AV_PIX_FMT_VDPAU,
 125     .start_frame    = vdpau_vc1_start_frame,
 126     .end_frame      = ff_vdpau_common_end_frame,
 127     .decode_slice   = vdpau_vc1_decode_slice,
 128 };