libavcodec/vdpau.c

   1 /*
   2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
   3  * HW decode acceleration for MPEG-1/2, H.264 and VC-1.
   4  *
   5  * Copyright (c) 2008 NVIDIA
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg 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  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #include <limits.h>
  25 #include "avcodec.h"
  26 #include "h264.h"
  27 #include "vc1.h"
  28
  29 #undef NDEBUG
  30 #include <assert.h>
  31
  32 #include "vdpau.h"
  33 #include "vdpau_internal.h"
  34
  35 /**
  36  * \addtogroup VDPAU_Decoding
  37  *
  38  * @{
  39  */
  40
  41 void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
  42 {
  43     H264Context *h = s->avctx->priv_data;
  44     struct vdpau_render_state *render, *render_ref;
  45     VdpReferenceFrameH264 *rf, *rf2;
  46     Picture *pic;
  47     int i, list, pic_frame_idx;
  48
  49     render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
  50     assert(render);
  51
  52     rf = &render->info.h264.referenceFrames[0];
  53 #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
  54
  55     for (list = 0; list < 2; ++list) {
  56         Picture **lp = list ? h->long_ref : h->short_ref;
  57         int ls = list ? h->long_ref_count : h->short_ref_count;
  58
  59         for (i = 0; i < ls; ++i) {
  60             pic = lp[i];
  61             if (!pic || !pic->reference)
  62                 continue;
  63             pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
  64
  65             render_ref = (struct vdpau_render_state *)pic->data[0];
  66             assert(render_ref);
  67
  68             rf2 = &render->info.h264.referenceFrames[0];
  69             while (rf2 != rf) {
  70                 if (
  71                     (rf2->surface == render_ref->surface)
  72                     && (rf2->is_long_term == pic->long_ref)
  73                     && (rf2->frame_idx == pic_frame_idx)
  74                 )
  75                     break;
  76                 ++rf2;
  77             }
  78             if (rf2 != rf) {
  79                 rf2->top_is_reference    |= (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
  80                 rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
  81                 continue;
  82             }
  83
  84             if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
  85                 continue;
  86
  87             rf->surface             = render_ref->surface;
  88             rf->is_long_term        = pic->long_ref;
  89             rf->top_is_reference    = (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
  90             rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
  91             rf->field_order_cnt[0]  = pic->field_poc[0];
  92             rf->field_order_cnt[1]  = pic->field_poc[1];
  93             rf->frame_idx           = pic_frame_idx;
  94
  95             ++rf;
  96         }
  97     }
  98
  99     for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
 100         rf->surface             = VDP_INVALID_HANDLE;
 101         rf->is_long_term        = 0;
 102         rf->top_is_reference    = 0;
 103         rf->bottom_is_reference = 0;
 104         rf->field_order_cnt[0]  = 0;
 105         rf->field_order_cnt[1]  = 0;
 106         rf->frame_idx           = 0;
 107     }
 108 }
 109
 110 void ff_vdpau_add_data_chunk(MpegEncContext *s,
 111                              const uint8_t *buf, int buf_size)
 112 {
 113     struct vdpau_render_state *render;
 114
 115     render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
 116     assert(render);
 117
 118     render->bitstream_buffers= av_fast_realloc(
 119         render->bitstream_buffers,
 120         &render->bitstream_buffers_allocated,
 121         sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
 122     );
 123
 124     render->bitstream_buffers[render->bitstream_buffers_used].struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
 125     render->bitstream_buffers[render->bitstream_buffers_used].bitstream       = buf;
 126     render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
 127     render->bitstream_buffers_used++;
 128 }
 129
 130 void ff_vdpau_h264_picture_complete(MpegEncContext *s)
 131 {
 132     H264Context *h = s->avctx->priv_data;
 133     struct vdpau_render_state *render;
 134     int i;
 135
 136     render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
 137     assert(render);
 138
 139     render->info.h264.slice_count = h->slice_num;
 140     if (render->info.h264.slice_count < 1)
 141         return;
 142
 143     for (i = 0; i < 2; ++i) {
 144         int foc = s->current_picture_ptr->field_poc[i];
 145         if (foc == INT_MAX)
 146             foc = 0;
 147         render->info.h264.field_order_cnt[i] = foc;
 148     }
 149
 150     render->info.h264.is_reference                           = (s->current_picture_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
 151     render->info.h264.frame_num                              = h->frame_num;
 152     render->info.h264.field_pic_flag                         = s->picture_structure != PICT_FRAME;
 153     render->info.h264.bottom_field_flag                      = s->picture_structure == PICT_BOTTOM_FIELD;
 154     render->info.h264.num_ref_frames                         = h->sps.ref_frame_count;
 155     render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
 156     render->info.h264.constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
 157     render->info.h264.weighted_pred_flag                     = h->pps.weighted_pred;
 158     render->info.h264.weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
 159     render->info.h264.frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
 160     render->info.h264.transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
 161     render->info.h264.chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
 162     render->info.h264.second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
 163     render->info.h264.pic_init_qp_minus26                    = h->pps.init_qp - 26;
 164     render->info.h264.num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
 165     render->info.h264.num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
 166     render->info.h264.log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
 167     render->info.h264.pic_order_cnt_type                     = h->sps.poc_type;
 168     render->info.h264.log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
 169     render->info.h264.delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
 170     render->info.h264.direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
 171     render->info.h264.entropy_coding_mode_flag               = h->pps.cabac;
 172     render->info.h264.pic_order_present_flag                 = h->pps.pic_order_present;
 173     render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
 174     render->info.h264.redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
 175     memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
 176     memcpy(render->info.h264.scaling_lists_8x8, h->pps.scaling_matrix8, sizeof(render->info.h264.scaling_lists_8x8));
 177
 178     ff_draw_horiz_band(s, 0, s->avctx->height);
 179     render->bitstream_buffers_used = 0;
 180 }
 181
 182 void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
 183                                     int buf_size, int slice_count)
 184 {
 185     struct vdpau_render_state *render, *last, *next;
 186     int i;
 187
 188     if (!s->current_picture_ptr) return;
 189
 190     render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
 191     assert(render);
 192
 193     /* fill VdpPictureInfoMPEG1Or2 struct */
 194     render->info.mpeg.picture_structure          = s->picture_structure;
 195     render->info.mpeg.picture_coding_type        = s->pict_type;
 196     render->info.mpeg.intra_dc_precision         = s->intra_dc_precision;
 197     render->info.mpeg.frame_pred_frame_dct       = s->frame_pred_frame_dct;
 198     render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
 199     render->info.mpeg.intra_vlc_format           = s->intra_vlc_format;
 200     render->info.mpeg.alternate_scan             = s->alternate_scan;
 201     render->info.mpeg.q_scale_type               = s->q_scale_type;
 202     render->info.mpeg.top_field_first            = s->top_field_first;
 203     render->info.mpeg.full_pel_forward_vector    = s->full_pel[0]; // MPEG-1 only.  Set 0 for MPEG-2
 204     render->info.mpeg.full_pel_backward_vector   = s->full_pel[1]; // MPEG-1 only.  Set 0 for MPEG-2
 205     render->info.mpeg.f_code[0][0]               = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
 206     render->info.mpeg.f_code[0][1]               = s->mpeg_f_code[0][1];
 207     render->info.mpeg.f_code[1][0]               = s->mpeg_f_code[1][0];
 208     render->info.mpeg.f_code[1][1]               = s->mpeg_f_code[1][1];
 209     for (i = 0; i < 64; ++i) {
 210         render->info.mpeg.intra_quantizer_matrix[i]     = s->intra_matrix[i];
 211         render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
 212     }
 213
 214     render->info.mpeg.forward_reference          = VDP_INVALID_HANDLE;
 215     render->info.mpeg.backward_reference         = VDP_INVALID_HANDLE;
 216
 217     switch(s->pict_type){
 218     case  FF_B_TYPE:
 219         next = (struct vdpau_render_state *)s->next_picture.data[0];
 220         assert(next);
 221         render->info.mpeg.backward_reference     = next->surface;
 222         // no return here, going to set forward prediction
 223     case  FF_P_TYPE:
 224         last = (struct vdpau_render_state *)s->last_picture.data[0];
 225         if (!last) // FIXME: Does this test make sense?
 226             last = render; // predict second field from the first
 227         render->info.mpeg.forward_reference      = last->surface;
 228     }
 229
 230     ff_vdpau_add_data_chunk(s, buf, buf_size);
 231
 232     render->info.mpeg.slice_count                = slice_count;
 233
 234     if (slice_count)
 235         ff_draw_horiz_band(s, 0, s->avctx->height);
 236     render->bitstream_buffers_used               = 0;
 237 }
 238
 239 void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
 240                                  int buf_size)
 241 {
 242     VC1Context *v = s->avctx->priv_data;
 243     struct vdpau_render_state *render, *last, *next;
 244
 245     render = (struct vdpau_render_state *)s->current_picture.data[0];
 246     assert(render);
 247
 248     /*  fill LvPictureInfoVC1 struct */
 249     render->info.vc1.frame_coding_mode  = v->fcm;
 250     render->info.vc1.postprocflag       = v->postprocflag;
 251     render->info.vc1.pulldown           = v->broadcast;
 252     render->info.vc1.interlace          = v->interlace;
 253     render->info.vc1.tfcntrflag         = v->tfcntrflag;
 254     render->info.vc1.finterpflag        = v->finterpflag;
 255     render->info.vc1.psf                = v->psf;
 256     render->info.vc1.dquant             = v->dquant;
 257     render->info.vc1.panscan_flag       = v->panscanflag;
 258     render->info.vc1.refdist_flag       = v->refdist_flag;
 259     render->info.vc1.quantizer          = v->quantizer_mode;
 260     render->info.vc1.extended_mv        = v->extended_mv;
 261     render->info.vc1.extended_dmv       = v->extended_dmv;
 262     render->info.vc1.overlap            = v->overlap;
 263     render->info.vc1.vstransform        = v->vstransform;
 264     render->info.vc1.loopfilter         = v->s.loop_filter;
 265     render->info.vc1.fastuvmc           = v->fastuvmc;
 266     render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
 267     render->info.vc1.range_mapy         = v->range_mapy;
 268     render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
 269     render->info.vc1.range_mapuv        = v->range_mapuv;
 270     /* Specific to simple/main profile only */
 271     render->info.vc1.multires           = v->multires;
 272     render->info.vc1.syncmarker         = v->s.resync_marker;
 273     render->info.vc1.rangered           = v->rangered | (v->rangeredfrm << 1);
 274     render->info.vc1.maxbframes         = v->s.max_b_frames;
 275
 276     render->info.vc1.deblockEnable      = v->postprocflag & 1;
 277     render->info.vc1.pquant             = v->pq;
 278
 279     render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
 280     render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
 281
 282     if (v->bi_type)
 283         render->info.vc1.picture_type = 4;
 284     else
 285         render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
 286
 287     switch(s->pict_type){
 288     case  FF_B_TYPE:
 289         next = (struct vdpau_render_state *)s->next_picture.data[0];
 290         assert(next);
 291         render->info.vc1.backward_reference = next->surface;
 292         // no break here, going to set forward prediction
 293     case  FF_P_TYPE:
 294         last = (struct vdpau_render_state *)s->last_picture.data[0];
 295         if (!last) // FIXME: Does this test make sense?
 296             last = render; // predict second field from the first
 297         render->info.vc1.forward_reference = last->surface;
 298     }
 299
 300     ff_vdpau_add_data_chunk(s, buf, buf_size);
 301
 302     render->info.vc1.slice_count          = 1;
 303
 304     ff_draw_horiz_band(s, 0, s->avctx->height);
 305     render->bitstream_buffers_used        = 0;
 306 }
 307
 308 /* @}*/