libavcodec/vdpau.c

   1 /*
   2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
   3  * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
   4  *
   5  * Copyright (c) 2008 NVIDIA
   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
  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 int ff_vdpau_common_start_frame(AVCodecContext *avctx,
  42                                 av_unused const uint8_t *buffer,
  43                                 av_unused uint32_t size)
  44 {
  45     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  46
  47     hwctx->bitstream_buffers_used = 0;
  48     return 0;
  49 }
  50
  51 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
  52 {
  53     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  54     MpegEncContext *s = avctx->priv_data;
  55     VdpVideoSurface surf = ff_vdpau_get_surface_id(s->current_picture_ptr);
  56
  57     hwctx->render(hwctx->decoder, surf, (void *)&hwctx->info,
  58                   hwctx->bitstream_buffers_used, hwctx->bitstream_buffers);
  59
  60     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
  61     hwctx->bitstream_buffers_used = 0;
  62
  63     return 0;
  64 }
  65
  66 int ff_vdpau_add_buffer(AVCodecContext *avctx,
  67                         const uint8_t *buf, uint32_t size)
  68 {
  69     AVVDPAUContext *hwctx = avctx->hwaccel_context;
  70     VdpBitstreamBuffer *buffers = hwctx->bitstream_buffers;
  71
  72     buffers = av_fast_realloc(buffers, &hwctx->bitstream_buffers_allocated,
  73                               (hwctx->bitstream_buffers_used + 1) * sizeof(*buffers));
  74     if (!buffers)
  75         return AVERROR(ENOMEM);
  76
  77     hwctx->bitstream_buffers = buffers;
  78     buffers += hwctx->bitstream_buffers_used++;
  79
  80     buffers->struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
  81     buffers->bitstream       = buf;
  82     buffers->bitstream_bytes = size;
  83     return 0;
  84 }
  85
  86 /* Obsolete non-hwaccel VDPAU support below... */
  87
  88 void ff_vdpau_h264_set_reference_frames(H264Context *h)
  89 {
  90     struct vdpau_render_state *render, *render_ref;
  91     VdpReferenceFrameH264 *rf, *rf2;
  92     Picture *pic;
  93     int i, list, pic_frame_idx;
  94
  95     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
  96     assert(render);
  97
  98     rf = &render->info.h264.referenceFrames[0];
  99 #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
 100
 101     for (list = 0; list < 2; ++list) {
 102         Picture **lp = list ? h->long_ref : h->short_ref;
 103         int ls = list ? 16 : h->short_ref_count;
 104
 105         for (i = 0; i < ls; ++i) {
 106             pic = lp[i];
 107             if (!pic || !pic->reference)
 108                 continue;
 109             pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
 110
 111             render_ref = (struct vdpau_render_state *)pic->f.data[0];
 112             assert(render_ref);
 113
 114             rf2 = &render->info.h264.referenceFrames[0];
 115             while (rf2 != rf) {
 116                 if (
 117                     (rf2->surface == render_ref->surface)
 118                     && (rf2->is_long_term == pic->long_ref)
 119                     && (rf2->frame_idx == pic_frame_idx)
 120                 )
 121                     break;
 122                 ++rf2;
 123             }
 124             if (rf2 != rf) {
 125                 rf2->top_is_reference    |= (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
 126                 rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
 127                 continue;
 128             }
 129
 130             if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
 131                 continue;
 132
 133             rf->surface             = render_ref->surface;
 134             rf->is_long_term        = pic->long_ref;
 135             rf->top_is_reference    = (pic->reference & PICT_TOP_FIELD)    ? VDP_TRUE : VDP_FALSE;
 136             rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
 137             rf->field_order_cnt[0]  = pic->field_poc[0];
 138             rf->field_order_cnt[1]  = pic->field_poc[1];
 139             rf->frame_idx           = pic_frame_idx;
 140
 141             ++rf;
 142         }
 143     }
 144
 145     for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
 146         rf->surface             = VDP_INVALID_HANDLE;
 147         rf->is_long_term        = 0;
 148         rf->top_is_reference    = 0;
 149         rf->bottom_is_reference = 0;
 150         rf->field_order_cnt[0]  = 0;
 151         rf->field_order_cnt[1]  = 0;
 152         rf->frame_idx           = 0;
 153     }
 154 }
 155
 156 void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf, int buf_size)
 157 {
 158     struct vdpau_render_state *render = (struct vdpau_render_state*)data;
 159     assert(render);
 160
 161     render->bitstream_buffers= av_fast_realloc(
 162         render->bitstream_buffers,
 163         &render->bitstream_buffers_allocated,
 164         sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
 165     );
 166
 167     render->bitstream_buffers[render->bitstream_buffers_used].struct_version  = VDP_BITSTREAM_BUFFER_VERSION;
 168     render->bitstream_buffers[render->bitstream_buffers_used].bitstream       = buf;
 169     render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
 170     render->bitstream_buffers_used++;
 171 }
 172
 173 void ff_vdpau_h264_picture_start(H264Context *h)
 174 {
 175     struct vdpau_render_state *render;
 176     int i;
 177
 178     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
 179     assert(render);
 180
 181     for (i = 0; i < 2; ++i) {
 182         int foc = h->cur_pic_ptr->field_poc[i];
 183         if (foc == INT_MAX)
 184             foc = 0;
 185         render->info.h264.field_order_cnt[i] = foc;
 186     }
 187
 188     render->info.h264.frame_num = h->frame_num;
 189 }
 190
 191 void ff_vdpau_h264_picture_complete(H264Context *h)
 192 {
 193     struct vdpau_render_state *render;
 194
 195     render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
 196     assert(render);
 197
 198     render->info.h264.slice_count = h->slice_num;
 199     if (render->info.h264.slice_count < 1)
 200         return;
 201
 202     render->info.h264.is_reference                           = (h->cur_pic_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
 203     render->info.h264.field_pic_flag                         = h->picture_structure != PICT_FRAME;
 204     render->info.h264.bottom_field_flag                      = h->picture_structure == PICT_BOTTOM_FIELD;
 205     render->info.h264.num_ref_frames                         = h->sps.ref_frame_count;
 206     render->info.h264.mb_adaptive_frame_field_flag           = h->sps.mb_aff && !render->info.h264.field_pic_flag;
 207     render->info.h264.constrained_intra_pred_flag            = h->pps.constrained_intra_pred;
 208     render->info.h264.weighted_pred_flag                     = h->pps.weighted_pred;
 209     render->info.h264.weighted_bipred_idc                    = h->pps.weighted_bipred_idc;
 210     render->info.h264.frame_mbs_only_flag                    = h->sps.frame_mbs_only_flag;
 211     render->info.h264.transform_8x8_mode_flag                = h->pps.transform_8x8_mode;
 212     render->info.h264.chroma_qp_index_offset                 = h->pps.chroma_qp_index_offset[0];
 213     render->info.h264.second_chroma_qp_index_offset          = h->pps.chroma_qp_index_offset[1];
 214     render->info.h264.pic_init_qp_minus26                    = h->pps.init_qp - 26;
 215     render->info.h264.num_ref_idx_l0_active_minus1           = h->pps.ref_count[0] - 1;
 216     render->info.h264.num_ref_idx_l1_active_minus1           = h->pps.ref_count[1] - 1;
 217     render->info.h264.log2_max_frame_num_minus4              = h->sps.log2_max_frame_num - 4;
 218     render->info.h264.pic_order_cnt_type                     = h->sps.poc_type;
 219     render->info.h264.log2_max_pic_order_cnt_lsb_minus4      = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
 220     render->info.h264.delta_pic_order_always_zero_flag       = h->sps.delta_pic_order_always_zero_flag;
 221     render->info.h264.direct_8x8_inference_flag              = h->sps.direct_8x8_inference_flag;
 222     render->info.h264.entropy_coding_mode_flag               = h->pps.cabac;
 223     render->info.h264.pic_order_present_flag                 = h->pps.pic_order_present;
 224     render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
 225     render->info.h264.redundant_pic_cnt_present_flag         = h->pps.redundant_pic_cnt_present;
 226     memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
 227     memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
 228     memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));
 229
 230     ff_h264_draw_horiz_band(h, 0, h->avctx->height);
 231     render->bitstream_buffers_used = 0;
 232 }
 233
 234 void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
 235                                     int buf_size, int slice_count)
 236 {
 237     struct vdpau_render_state *render, *last, *next;
 238     int i;
 239
 240     if (!s->current_picture_ptr) return;
 241
 242     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
 243     assert(render);
 244
 245     /* fill VdpPictureInfoMPEG1Or2 struct */
 246     render->info.mpeg.picture_structure          = s->picture_structure;
 247     render->info.mpeg.picture_coding_type        = s->pict_type;
 248     render->info.mpeg.intra_dc_precision         = s->intra_dc_precision;
 249     render->info.mpeg.frame_pred_frame_dct       = s->frame_pred_frame_dct;
 250     render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
 251     render->info.mpeg.intra_vlc_format           = s->intra_vlc_format;
 252     render->info.mpeg.alternate_scan             = s->alternate_scan;
 253     render->info.mpeg.q_scale_type               = s->q_scale_type;
 254     render->info.mpeg.top_field_first            = s->top_field_first;
 255     render->info.mpeg.full_pel_forward_vector    = s->full_pel[0]; // MPEG-1 only.  Set 0 for MPEG-2
 256     render->info.mpeg.full_pel_backward_vector   = s->full_pel[1]; // MPEG-1 only.  Set 0 for MPEG-2
 257     render->info.mpeg.f_code[0][0]               = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
 258     render->info.mpeg.f_code[0][1]               = s->mpeg_f_code[0][1];
 259     render->info.mpeg.f_code[1][0]               = s->mpeg_f_code[1][0];
 260     render->info.mpeg.f_code[1][1]               = s->mpeg_f_code[1][1];
 261     for (i = 0; i < 64; ++i) {
 262         render->info.mpeg.intra_quantizer_matrix[i]     = s->intra_matrix[i];
 263         render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
 264     }
 265
 266     render->info.mpeg.forward_reference          = VDP_INVALID_HANDLE;
 267     render->info.mpeg.backward_reference         = VDP_INVALID_HANDLE;
 268
 269     switch(s->pict_type){
 270     case  AV_PICTURE_TYPE_B:
 271         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
 272         assert(next);
 273         render->info.mpeg.backward_reference     = next->surface;
 274         // no return here, going to set forward prediction
 275     case  AV_PICTURE_TYPE_P:
 276         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
 277         if (!last) // FIXME: Does this test make sense?
 278             last = render; // predict second field from the first
 279         render->info.mpeg.forward_reference      = last->surface;
 280     }
 281
 282     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
 283
 284     render->info.mpeg.slice_count                = slice_count;
 285
 286     if (slice_count)
 287         ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
 288     render->bitstream_buffers_used               = 0;
 289 }
 290
 291 void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
 292                                  int buf_size)
 293 {
 294     VC1Context *v = s->avctx->priv_data;
 295     struct vdpau_render_state *render, *last, *next;
 296
 297     render = (struct vdpau_render_state *)s->current_picture.f.data[0];
 298     assert(render);
 299
 300     /*  fill LvPictureInfoVC1 struct */
 301     render->info.vc1.frame_coding_mode  = v->fcm;
 302     render->info.vc1.postprocflag       = v->postprocflag;
 303     render->info.vc1.pulldown           = v->broadcast;
 304     render->info.vc1.interlace          = v->interlace;
 305     render->info.vc1.tfcntrflag         = v->tfcntrflag;
 306     render->info.vc1.finterpflag        = v->finterpflag;
 307     render->info.vc1.psf                = v->psf;
 308     render->info.vc1.dquant             = v->dquant;
 309     render->info.vc1.panscan_flag       = v->panscanflag;
 310     render->info.vc1.refdist_flag       = v->refdist_flag;
 311     render->info.vc1.quantizer          = v->quantizer_mode;
 312     render->info.vc1.extended_mv        = v->extended_mv;
 313     render->info.vc1.extended_dmv       = v->extended_dmv;
 314     render->info.vc1.overlap            = v->overlap;
 315     render->info.vc1.vstransform        = v->vstransform;
 316     render->info.vc1.loopfilter         = v->s.loop_filter;
 317     render->info.vc1.fastuvmc           = v->fastuvmc;
 318     render->info.vc1.range_mapy_flag    = v->range_mapy_flag;
 319     render->info.vc1.range_mapy         = v->range_mapy;
 320     render->info.vc1.range_mapuv_flag   = v->range_mapuv_flag;
 321     render->info.vc1.range_mapuv        = v->range_mapuv;
 322     /* Specific to simple/main profile only */
 323     render->info.vc1.multires           = v->multires;
 324     render->info.vc1.syncmarker         = v->s.resync_marker;
 325     render->info.vc1.rangered           = v->rangered | (v->rangeredfrm << 1);
 326     render->info.vc1.maxbframes         = v->s.max_b_frames;
 327
 328     render->info.vc1.deblockEnable      = v->postprocflag & 1;
 329     render->info.vc1.pquant             = v->pq;
 330
 331     render->info.vc1.forward_reference  = VDP_INVALID_HANDLE;
 332     render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
 333
 334     if (v->bi_type)
 335         render->info.vc1.picture_type = 4;
 336     else
 337         render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
 338
 339     switch(s->pict_type){
 340     case  AV_PICTURE_TYPE_B:
 341         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
 342         assert(next);
 343         render->info.vc1.backward_reference = next->surface;
 344         // no break here, going to set forward prediction
 345     case  AV_PICTURE_TYPE_P:
 346         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
 347         if (!last) // FIXME: Does this test make sense?
 348             last = render; // predict second field from the first
 349         render->info.vc1.forward_reference = last->surface;
 350     }
 351
 352     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
 353
 354     render->info.vc1.slice_count          = 1;
 355
 356     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
 357     render->bitstream_buffers_used        = 0;
 358 }
 359
 360 void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
 361                                    int buf_size)
 362 {
 363     struct vdpau_render_state *render, *last, *next;
 364     int i;
 365
 366     if (!s->current_picture_ptr) return;
 367
 368     render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
 369     assert(render);
 370
 371     /* fill VdpPictureInfoMPEG4Part2 struct */
 372     render->info.mpeg4.trd[0]                            = s->pp_time;
 373     render->info.mpeg4.trb[0]                            = s->pb_time;
 374     render->info.mpeg4.trd[1]                            = s->pp_field_time >> 1;
 375     render->info.mpeg4.trb[1]                            = s->pb_field_time >> 1;
 376     render->info.mpeg4.vop_time_increment_resolution     = s->avctx->time_base.den;
 377     render->info.mpeg4.vop_coding_type                   = 0;
 378     render->info.mpeg4.vop_fcode_forward                 = s->f_code;
 379     render->info.mpeg4.vop_fcode_backward                = s->b_code;
 380     render->info.mpeg4.resync_marker_disable             = !s->resync_marker;
 381     render->info.mpeg4.interlaced                        = !s->progressive_sequence;
 382     render->info.mpeg4.quant_type                        = s->mpeg_quant;
 383     render->info.mpeg4.quarter_sample                    = s->quarter_sample;
 384     render->info.mpeg4.short_video_header                = s->avctx->codec->id == AV_CODEC_ID_H263;
 385     render->info.mpeg4.rounding_control                  = s->no_rounding;
 386     render->info.mpeg4.alternate_vertical_scan_flag      = s->alternate_scan;
 387     render->info.mpeg4.top_field_first                   = s->top_field_first;
 388     for (i = 0; i < 64; ++i) {
 389         render->info.mpeg4.intra_quantizer_matrix[i]     = s->intra_matrix[i];
 390         render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
 391     }
 392     render->info.mpeg4.forward_reference                 = VDP_INVALID_HANDLE;
 393     render->info.mpeg4.backward_reference                = VDP_INVALID_HANDLE;
 394
 395     switch (s->pict_type) {
 396     case AV_PICTURE_TYPE_B:
 397         next = (struct vdpau_render_state *)s->next_picture.f.data[0];
 398         assert(next);
 399         render->info.mpeg4.backward_reference     = next->surface;
 400         render->info.mpeg4.vop_coding_type        = 2;
 401         // no break here, going to set forward prediction
 402     case AV_PICTURE_TYPE_P:
 403         last = (struct vdpau_render_state *)s->last_picture.f.data[0];
 404         assert(last);
 405         render->info.mpeg4.forward_reference      = last->surface;
 406     }
 407
 408     ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
 409
 410     ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
 411     render->bitstream_buffers_used = 0;
 412 }
 413
 414 /* @}*/