src/gallium/state_trackers/vdpau/decode.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2010 Thomas Balling Sørensen.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_memory.h"
  29 #include "util/u_math.h"
  30 #include "util/u_debug.h"
  31 #include "util/u_video.h"
  32
  33 #include "vl/vl_vlc.h"
  34
  35 #include "vdpau_private.h"
  36
  37 /**
  38  * Create a VdpDecoder.
  39  */
  40 VdpStatus
  41 vlVdpDecoderCreate(VdpDevice device,
  42                    VdpDecoderProfile profile,
  43                    uint32_t width, uint32_t height,
  44                    uint32_t max_references,
  45                    VdpDecoder *decoder)
  46 {
  47    struct pipe_video_codec templat = {};
  48    struct pipe_context *pipe;
  49    struct pipe_screen *screen;
  50    vlVdpDevice *dev;
  51    vlVdpDecoder *vldecoder;
  52    VdpStatus ret;
  53    bool supported;
  54    uint32_t maxwidth, maxheight;
  55
  56    if (!decoder)
  57       return VDP_STATUS_INVALID_POINTER;
  58    *decoder = 0;
  59
  60    if (!(width && height))
  61       return VDP_STATUS_INVALID_VALUE;
  62
  63    templat.profile = ProfileToPipe(profile);
  64    if (templat.profile == PIPE_VIDEO_PROFILE_UNKNOWN)
  65       return VDP_STATUS_INVALID_DECODER_PROFILE;
  66
  67    dev = vlGetDataHTAB(device);
  68    if (!dev)
  69       return VDP_STATUS_INVALID_HANDLE;
  70
  71    pipe = dev->context;
  72    screen = dev->vscreen->pscreen;
  73
  74    pipe_mutex_lock(dev->mutex);
  75
  76    supported = screen->get_video_param
  77    (
  78       screen,
  79       templat.profile,
  80       PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
  81       PIPE_VIDEO_CAP_SUPPORTED
  82    );
  83    if (!supported) {
  84       pipe_mutex_unlock(dev->mutex);
  85       return VDP_STATUS_INVALID_DECODER_PROFILE;
  86    }
  87
  88    maxwidth = screen->get_video_param
  89    (
  90       screen,
  91       templat.profile,
  92       PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
  93       PIPE_VIDEO_CAP_MAX_WIDTH
  94    );
  95    maxheight = screen->get_video_param
  96    (
  97       screen,
  98       templat.profile,
  99       PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
 100       PIPE_VIDEO_CAP_MAX_HEIGHT
 101    );
 102    if (width > maxwidth || height > maxheight) {
 103       pipe_mutex_unlock(dev->mutex);
 104       return VDP_STATUS_INVALID_SIZE;
 105    }
 106
 107    vldecoder = CALLOC(1,sizeof(vlVdpDecoder));
 108    if (!vldecoder) {
 109       pipe_mutex_unlock(dev->mutex);
 110       return VDP_STATUS_RESOURCES;
 111    }
 112
 113    vldecoder->device = dev;
 114
 115    templat.entrypoint = PIPE_VIDEO_ENTRYPOINT_BITSTREAM;
 116    templat.chroma_format = PIPE_VIDEO_CHROMA_FORMAT_420;
 117    templat.width = width;
 118    templat.height = height;
 119    templat.max_references = max_references;
 120
 121    vldecoder->decoder = pipe->create_video_codec(pipe, &templat);
 122
 123    if (!vldecoder->decoder) {
 124       ret = VDP_STATUS_ERROR;
 125       goto error_decoder;
 126    }
 127
 128    *decoder = vlAddDataHTAB(vldecoder);
 129    if (*decoder == 0) {
 130       ret = VDP_STATUS_ERROR;
 131       goto error_handle;
 132    }
 133
 134    pipe_mutex_init(vldecoder->mutex);
 135    pipe_mutex_unlock(dev->mutex);
 136
 137    return VDP_STATUS_OK;
 138
 139 error_handle:
 140    vldecoder->decoder->destroy(vldecoder->decoder);
 141
 142 error_decoder:
 143    pipe_mutex_unlock(dev->mutex);
 144    FREE(vldecoder);
 145    return ret;
 146 }
 147
 148 /**
 149  * Destroy a VdpDecoder.
 150  */
 151 VdpStatus
 152 vlVdpDecoderDestroy(VdpDecoder decoder)
 153 {
 154    vlVdpDecoder *vldecoder;
 155
 156    vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
 157    if (!vldecoder)
 158       return VDP_STATUS_INVALID_HANDLE;
 159
 160    pipe_mutex_lock(vldecoder->mutex);
 161    vldecoder->decoder->destroy(vldecoder->decoder);
 162    pipe_mutex_unlock(vldecoder->mutex);
 163    pipe_mutex_destroy(vldecoder->mutex);
 164
 165    vlRemoveDataHTAB(decoder);
 166    FREE(vldecoder);
 167
 168    return VDP_STATUS_OK;
 169 }
 170
 171 /**
 172  * Retrieve the parameters used to create a VdpDecoder.
 173  */
 174 VdpStatus
 175 vlVdpDecoderGetParameters(VdpDecoder decoder,
 176                           VdpDecoderProfile *profile,
 177                           uint32_t *width,
 178                           uint32_t *height)
 179 {
 180    vlVdpDecoder *vldecoder;
 181
 182    vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
 183    if (!vldecoder)
 184       return VDP_STATUS_INVALID_HANDLE;
 185
 186    *profile = PipeToProfile(vldecoder->decoder->profile);
 187    *width = vldecoder->decoder->width;
 188    *height = vldecoder->decoder->height;
 189
 190    return VDP_STATUS_OK;
 191 }
 192
 193 static VdpStatus
 194 vlVdpGetReferenceFrame(VdpVideoSurface handle, struct pipe_video_buffer **ref_frame)
 195 {
 196    vlVdpSurface *surface;
 197
 198    /* if surfaces equals VDP_STATUS_INVALID_HANDLE, they are not used */
 199    if (handle ==  VDP_INVALID_HANDLE) {
 200       *ref_frame = NULL;
 201       return VDP_STATUS_OK;
 202    }
 203
 204    surface = vlGetDataHTAB(handle);
 205    if (!surface)
 206       return VDP_STATUS_INVALID_HANDLE;
 207
 208    *ref_frame = surface->video_buffer;
 209    if (!*ref_frame)
 210          return VDP_STATUS_INVALID_HANDLE;
 211
 212    return VDP_STATUS_OK;
 213 }
 214
 215 /**
 216  * Decode a mpeg 1/2 video.
 217  */
 218 static VdpStatus
 219 vlVdpDecoderRenderMpeg12(struct pipe_mpeg12_picture_desc *picture,
 220                          VdpPictureInfoMPEG1Or2 *picture_info)
 221 {
 222    VdpStatus r;
 223
 224    VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding MPEG12\n");
 225
 226    r = vlVdpGetReferenceFrame(picture_info->forward_reference, &picture->ref[0]);
 227    if (r != VDP_STATUS_OK)
 228       return r;
 229
 230    r = vlVdpGetReferenceFrame(picture_info->backward_reference, &picture->ref[1]);
 231    if (r != VDP_STATUS_OK)
 232       return r;
 233
 234    picture->picture_coding_type = picture_info->picture_coding_type;
 235    picture->picture_structure = picture_info->picture_structure;
 236    picture->frame_pred_frame_dct = picture_info->frame_pred_frame_dct;
 237    picture->q_scale_type = picture_info->q_scale_type;
 238    picture->alternate_scan = picture_info->alternate_scan;
 239    picture->intra_vlc_format = picture_info->intra_vlc_format;
 240    picture->concealment_motion_vectors = picture_info->concealment_motion_vectors;
 241    picture->intra_dc_precision = picture_info->intra_dc_precision;
 242    picture->f_code[0][0] = picture_info->f_code[0][0] - 1;
 243    picture->f_code[0][1] = picture_info->f_code[0][1] - 1;
 244    picture->f_code[1][0] = picture_info->f_code[1][0] - 1;
 245    picture->f_code[1][1] = picture_info->f_code[1][1] - 1;
 246    picture->num_slices = picture_info->slice_count;
 247    picture->top_field_first = picture_info->top_field_first;
 248    picture->full_pel_forward_vector = picture_info->full_pel_forward_vector;
 249    picture->full_pel_backward_vector = picture_info->full_pel_backward_vector;
 250    picture->intra_matrix = picture_info->intra_quantizer_matrix;
 251    picture->non_intra_matrix = picture_info->non_intra_quantizer_matrix;
 252
 253    return VDP_STATUS_OK;
 254 }
 255
 256 /**
 257  * Decode a mpeg 4 video.
 258  */
 259 static VdpStatus
 260 vlVdpDecoderRenderMpeg4(struct pipe_mpeg4_picture_desc *picture,
 261                         VdpPictureInfoMPEG4Part2 *picture_info)
 262 {
 263    VdpStatus r;
 264    unsigned i;
 265
 266    VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding MPEG4\n");
 267
 268    r = vlVdpGetReferenceFrame(picture_info->forward_reference, &picture->ref[0]);
 269    if (r != VDP_STATUS_OK)
 270       return r;
 271
 272    r = vlVdpGetReferenceFrame(picture_info->backward_reference, &picture->ref[1]);
 273    if (r != VDP_STATUS_OK)
 274       return r;
 275
 276    for (i = 0; i < 2; ++i) {
 277       picture->trd[i] = picture_info->trd[i];
 278       picture->trb[i] = picture_info->trb[i];
 279    }
 280    picture->vop_time_increment_resolution = picture_info->vop_time_increment_resolution;
 281    picture->vop_coding_type = picture_info->vop_coding_type;
 282    picture->vop_fcode_forward = picture_info->vop_fcode_forward;
 283    picture->vop_fcode_backward = picture_info->vop_fcode_backward;
 284    picture->resync_marker_disable = picture_info->resync_marker_disable;
 285    picture->interlaced = picture_info->interlaced;
 286    picture->quant_type = picture_info->quant_type;
 287    picture->quarter_sample = picture_info->quarter_sample;
 288    picture->short_video_header = picture_info->short_video_header;
 289    picture->rounding_control = picture_info->rounding_control;
 290    picture->alternate_vertical_scan_flag = picture_info->alternate_vertical_scan_flag;
 291    picture->top_field_first = picture_info->top_field_first;
 292    picture->intra_matrix = picture_info->intra_quantizer_matrix;
 293    picture->non_intra_matrix = picture_info->non_intra_quantizer_matrix;
 294
 295    return VDP_STATUS_OK;
 296 }
 297
 298 static VdpStatus
 299 vlVdpDecoderRenderVC1(struct pipe_vc1_picture_desc *picture,
 300                       VdpPictureInfoVC1 *picture_info)
 301 {
 302    VdpStatus r;
 303
 304    VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding VC-1\n");
 305
 306    r = vlVdpGetReferenceFrame(picture_info->forward_reference, &picture->ref[0]);
 307    if (r != VDP_STATUS_OK)
 308       return r;
 309
 310    r = vlVdpGetReferenceFrame(picture_info->backward_reference, &picture->ref[1]);
 311    if (r != VDP_STATUS_OK)
 312       return r;
 313
 314    picture->slice_count = picture_info->slice_count;
 315    picture->picture_type = picture_info->picture_type;
 316    picture->frame_coding_mode = picture_info->frame_coding_mode;
 317    picture->postprocflag = picture_info->postprocflag;
 318    picture->pulldown = picture_info->pulldown;
 319    picture->interlace = picture_info->interlace;
 320    picture->tfcntrflag = picture_info->tfcntrflag;
 321    picture->finterpflag = picture_info->finterpflag;
 322    picture->psf = picture_info->psf;
 323    picture->dquant = picture_info->dquant;
 324    picture->panscan_flag = picture_info->panscan_flag;
 325    picture->refdist_flag = picture_info->refdist_flag;
 326    picture->quantizer = picture_info->quantizer;
 327    picture->extended_mv = picture_info->extended_mv;
 328    picture->extended_dmv = picture_info->extended_dmv;
 329    picture->overlap = picture_info->overlap;
 330    picture->vstransform = picture_info->vstransform;
 331    picture->loopfilter = picture_info->loopfilter;
 332    picture->fastuvmc = picture_info->fastuvmc;
 333    picture->range_mapy_flag = picture_info->range_mapy_flag;
 334    picture->range_mapy = picture_info->range_mapy;
 335    picture->range_mapuv_flag = picture_info->range_mapuv_flag;
 336    picture->range_mapuv = picture_info->range_mapuv;
 337    picture->multires = picture_info->multires;
 338    picture->syncmarker = picture_info->syncmarker;
 339    picture->rangered = picture_info->rangered;
 340    picture->maxbframes = picture_info->maxbframes;
 341    picture->deblockEnable = picture_info->deblockEnable;
 342    picture->pquant = picture_info->pquant;
 343
 344    return VDP_STATUS_OK;
 345 }
 346
 347 static VdpStatus
 348 vlVdpDecoderRenderH264(struct pipe_h264_picture_desc *picture,
 349                        VdpPictureInfoH264 *picture_info)
 350 {
 351    unsigned i;
 352
 353    VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Decoding H264\n");
 354
 355    picture->pps->sps->mb_adaptive_frame_field_flag = picture_info->mb_adaptive_frame_field_flag;
 356    picture->pps->sps->frame_mbs_only_flag = picture_info->frame_mbs_only_flag;
 357    picture->pps->sps->log2_max_frame_num_minus4 = picture_info->log2_max_frame_num_minus4;
 358    picture->pps->sps->pic_order_cnt_type = picture_info->pic_order_cnt_type;
 359    picture->pps->sps->log2_max_pic_order_cnt_lsb_minus4 = picture_info->log2_max_pic_order_cnt_lsb_minus4;
 360    picture->pps->sps->delta_pic_order_always_zero_flag = picture_info->delta_pic_order_always_zero_flag;
 361    picture->pps->sps->direct_8x8_inference_flag = picture_info->direct_8x8_inference_flag;
 362
 363    picture->pps->transform_8x8_mode_flag = picture_info->transform_8x8_mode_flag;
 364    picture->pps->chroma_qp_index_offset = picture_info->chroma_qp_index_offset;
 365    picture->pps->second_chroma_qp_index_offset = picture_info->second_chroma_qp_index_offset;
 366    picture->pps->pic_init_qp_minus26 = picture_info->pic_init_qp_minus26;
 367    picture->pps->entropy_coding_mode_flag = picture_info->entropy_coding_mode_flag;
 368    picture->pps->deblocking_filter_control_present_flag = picture_info->deblocking_filter_control_present_flag;
 369    picture->pps->redundant_pic_cnt_present_flag = picture_info->redundant_pic_cnt_present_flag;
 370    picture->pps->constrained_intra_pred_flag = picture_info->constrained_intra_pred_flag;
 371    picture->pps->weighted_pred_flag = picture_info->weighted_pred_flag;
 372    picture->pps->weighted_bipred_idc = picture_info->weighted_bipred_idc;
 373    picture->pps->bottom_field_pic_order_in_frame_present_flag = picture_info->pic_order_present_flag;
 374    memcpy(picture->pps->ScalingList4x4, picture_info->scaling_lists_4x4, 6*16);
 375    memcpy(picture->pps->ScalingList8x8, picture_info->scaling_lists_8x8, 2*64);
 376
 377    picture->slice_count = picture_info->slice_count;
 378    picture->field_order_cnt[0] = picture_info->field_order_cnt[0];
 379    picture->field_order_cnt[1] = picture_info->field_order_cnt[1];
 380    picture->is_reference = picture_info->is_reference;
 381    picture->frame_num = picture_info->frame_num;
 382    picture->field_pic_flag = picture_info->field_pic_flag;
 383    picture->bottom_field_flag = picture_info->bottom_field_flag;
 384    picture->num_ref_frames = picture_info->num_ref_frames;
 385
 386    picture->num_ref_idx_l0_active_minus1 = picture_info->num_ref_idx_l0_active_minus1;
 387    picture->num_ref_idx_l1_active_minus1 = picture_info->num_ref_idx_l1_active_minus1;
 388
 389    for (i = 0; i < 16; ++i) {
 390       VdpStatus ret = vlVdpGetReferenceFrame
 391       (
 392          picture_info->referenceFrames[i].surface,
 393          &picture->ref[i]
 394       );
 395       if (ret != VDP_STATUS_OK)
 396          return ret;
 397
 398       picture->is_long_term[i] = picture_info->referenceFrames[i].is_long_term;
 399       picture->top_is_reference[i] = picture_info->referenceFrames[i].top_is_reference;
 400       picture->bottom_is_reference[i] = picture_info->referenceFrames[i].bottom_is_reference;
 401       picture->field_order_cnt_list[i][0] = picture_info->referenceFrames[i].field_order_cnt[0];
 402       picture->field_order_cnt_list[i][1] = picture_info->referenceFrames[i].field_order_cnt[1];
 403       picture->frame_num_list[i] = picture_info->referenceFrames[i].frame_idx;
 404    }
 405
 406    return VDP_STATUS_OK;
 407 }
 408
 409 static void
 410 vlVdpDecoderFixVC1Startcode(uint32_t *num_buffers, const void *buffers[], unsigned sizes[])
 411 {
 412    static const uint8_t vc1_startcode[] = { 0x00, 0x00, 0x01, 0x0D };
 413    struct vl_vlc vlc;
 414    unsigned i;
 415
 416    /* search the first 64 bytes for a startcode */
 417    vl_vlc_init(&vlc, *num_buffers, buffers, sizes);
 418    while (vl_vlc_search_byte(&vlc, 64*8, 0x00) && vl_vlc_bits_left(&vlc) >= 32) {
 419       uint32_t value = vl_vlc_peekbits(&vlc, 32);
 420       if (value == 0x0000010D ||
 421           value == 0x0000010C ||
 422           value == 0x0000010B)
 423          return;
 424       vl_vlc_eatbits(&vlc, 8);
 425    }
 426
 427    /* none found, ok add one manually */
 428    VDPAU_MSG(VDPAU_TRACE, "[VDPAU] Manually adding VC-1 startcode\n");
 429    for (i = *num_buffers; i > 0; --i) {
 430       buffers[i] = buffers[i - 1];
 431       sizes[i] = sizes[i - 1];
 432    }
 433    ++(*num_buffers);
 434    buffers[0] = vc1_startcode;
 435    sizes[0] = 4;
 436 }
 437
 438 /**
 439  * Decode a compressed field/frame and render the result into a VdpVideoSurface.
 440  */
 441 VdpStatus
 442 vlVdpDecoderRender(VdpDecoder decoder,
 443                    VdpVideoSurface target,
 444                    VdpPictureInfo const *picture_info,
 445                    uint32_t bitstream_buffer_count,
 446                    VdpBitstreamBuffer const *bitstream_buffers)
 447 {
 448    const void * buffers[bitstream_buffer_count + 1];
 449    unsigned sizes[bitstream_buffer_count + 1];
 450    vlVdpDecoder *vldecoder;
 451    vlVdpSurface *vlsurf;
 452    VdpStatus ret;
 453    struct pipe_screen *screen;
 454    struct pipe_video_codec *dec;
 455    bool buffer_support[2];
 456    unsigned i;
 457    struct pipe_h264_sps sps = {};
 458    struct pipe_h264_pps pps = { &sps };
 459    union {
 460       struct pipe_picture_desc base;
 461       struct pipe_mpeg12_picture_desc mpeg12;
 462       struct pipe_mpeg4_picture_desc mpeg4;
 463       struct pipe_vc1_picture_desc vc1;
 464       struct pipe_h264_picture_desc h264;
 465    } desc;
 466
 467    if (!(picture_info && bitstream_buffers))
 468       return VDP_STATUS_INVALID_POINTER;
 469
 470    vldecoder = (vlVdpDecoder *)vlGetDataHTAB(decoder);
 471    if (!vldecoder)
 472       return VDP_STATUS_INVALID_HANDLE;
 473    dec = vldecoder->decoder;
 474    screen = dec->context->screen;
 475
 476    vlsurf = (vlVdpSurface *)vlGetDataHTAB(target);
 477    if (!vlsurf)
 478       return VDP_STATUS_INVALID_HANDLE;
 479
 480    if (vlsurf->device != vldecoder->device)
 481       return VDP_STATUS_HANDLE_DEVICE_MISMATCH;
 482
 483    if (vlsurf->video_buffer != NULL && vlsurf->video_buffer->chroma_format != dec->chroma_format)
 484       // TODO: Recreate decoder with correct chroma
 485       return VDP_STATUS_INVALID_CHROMA_TYPE;
 486
 487    buffer_support[0] = screen->get_video_param(screen, dec->profile, PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
 488                                                PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE);
 489    buffer_support[1] = screen->get_video_param(screen, dec->profile, PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
 490                                                PIPE_VIDEO_CAP_SUPPORTS_INTERLACED);
 491
 492    if (vlsurf->video_buffer == NULL ||
 493        !screen->is_video_format_supported(screen, vlsurf->video_buffer->buffer_format,
 494                                           dec->profile, PIPE_VIDEO_ENTRYPOINT_BITSTREAM) ||
 495        !buffer_support[vlsurf->video_buffer->interlaced]) {
 496
 497       pipe_mutex_lock(vlsurf->device->mutex);
 498
 499       /* destroy the old one */
 500       if (vlsurf->video_buffer)
 501          vlsurf->video_buffer->destroy(vlsurf->video_buffer);
 502
 503       /* set the buffer format to the prefered one */
 504       vlsurf->templat.buffer_format = screen->get_video_param(screen, dec->profile, PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
 505                                                               PIPE_VIDEO_CAP_PREFERED_FORMAT);
 506
 507       /* also set interlacing to decoders preferences */
 508       vlsurf->templat.interlaced = screen->get_video_param(screen, dec->profile, PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
 509                                                            PIPE_VIDEO_CAP_PREFERS_INTERLACED);
 510
 511       /* and recreate the video buffer */
 512       vlsurf->video_buffer = dec->context->create_video_buffer(dec->context, &vlsurf->templat);
 513
 514       /* still no luck? get me out of here... */
 515       if (!vlsurf->video_buffer) {
 516          pipe_mutex_unlock(vlsurf->device->mutex);
 517          return VDP_STATUS_NO_IMPLEMENTATION;
 518       }
 519       vlVdpVideoSurfaceClear(vlsurf);
 520       pipe_mutex_unlock(vlsurf->device->mutex);
 521    }
 522
 523    for (i = 0; i < bitstream_buffer_count; ++i) {
 524       buffers[i] = bitstream_buffers[i].bitstream;
 525       sizes[i] = bitstream_buffers[i].bitstream_bytes;
 526    }
 527
 528    memset(&desc, 0, sizeof(desc));
 529    desc.base.profile = dec->profile;
 530    switch (u_reduce_video_profile(dec->profile)) {
 531    case PIPE_VIDEO_FORMAT_MPEG12:
 532       ret = vlVdpDecoderRenderMpeg12(&desc.mpeg12, (VdpPictureInfoMPEG1Or2 *)picture_info);
 533       break;
 534    case PIPE_VIDEO_FORMAT_MPEG4:
 535       ret = vlVdpDecoderRenderMpeg4(&desc.mpeg4, (VdpPictureInfoMPEG4Part2 *)picture_info);
 536       break;
 537    case PIPE_VIDEO_FORMAT_VC1:
 538       if (dec->profile == PIPE_VIDEO_PROFILE_VC1_ADVANCED)
 539          vlVdpDecoderFixVC1Startcode(&bitstream_buffer_count, buffers, sizes);
 540       ret = vlVdpDecoderRenderVC1(&desc.vc1, (VdpPictureInfoVC1 *)picture_info);
 541       break;
 542    case PIPE_VIDEO_FORMAT_MPEG4_AVC:
 543       desc.h264.pps = &pps;
 544       ret = vlVdpDecoderRenderH264(&desc.h264, (VdpPictureInfoH264 *)picture_info);
 545       break;
 546    default:
 547       return VDP_STATUS_INVALID_DECODER_PROFILE;
 548    }
 549
 550    if (ret != VDP_STATUS_OK)
 551       return ret;
 552
 553    pipe_mutex_lock(vldecoder->mutex);
 554    dec->begin_frame(dec, vlsurf->video_buffer, &desc.base);
 555    dec->decode_bitstream(dec, vlsurf->video_buffer, &desc.base, bitstream_buffer_count, buffers, sizes);
 556    dec->end_frame(dec, vlsurf->video_buffer, &desc.base);
 557    pipe_mutex_unlock(vldecoder->mutex);
 558    return ret;
 559 }