src/gallium/state_trackers/va/picture_mpeg12.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2014 Advanced Micro Devices, Inc.
   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 THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 "va_private.h"
  29
  30 void vlVaHandlePictureParameterBufferMPEG12(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
  31 {
  32    VAPictureParameterBufferMPEG2 *mpeg2 = buf->data;
  33
  34    assert(buf->size >= sizeof(VAPictureParameterBufferMPEG2) && buf->num_elements == 1);
  35    context->desc.mpeg12.num_slices = 0;
  36    /*horizontal_size;*/
  37    /*vertical_size;*/
  38    vlVaGetReferenceFrame(drv, mpeg2->forward_reference_picture, &context->desc.mpeg12.ref[0]);
  39    vlVaGetReferenceFrame(drv, mpeg2->backward_reference_picture, &context->desc.mpeg12.ref[1]);
  40    context->desc.mpeg12.picture_coding_type = mpeg2->picture_coding_type;
  41    context->desc.mpeg12.f_code[0][0] = ((mpeg2->f_code >> 12) & 0xf) - 1;
  42    context->desc.mpeg12.f_code[0][1] = ((mpeg2->f_code >> 8) & 0xf) - 1;
  43    context->desc.mpeg12.f_code[1][0] = ((mpeg2->f_code >> 4) & 0xf) - 1;
  44    context->desc.mpeg12.f_code[1][1] = (mpeg2->f_code & 0xf) - 1;
  45    context->desc.mpeg12.intra_dc_precision =
  46       mpeg2->picture_coding_extension.bits.intra_dc_precision;
  47    context->desc.mpeg12.picture_structure =
  48       mpeg2->picture_coding_extension.bits.picture_structure;
  49    context->desc.mpeg12.top_field_first =
  50       mpeg2->picture_coding_extension.bits.top_field_first;
  51    context->desc.mpeg12.frame_pred_frame_dct =
  52       mpeg2->picture_coding_extension.bits.frame_pred_frame_dct;
  53    context->desc.mpeg12.concealment_motion_vectors =
  54       mpeg2->picture_coding_extension.bits.concealment_motion_vectors;
  55    context->desc.mpeg12.q_scale_type =
  56       mpeg2->picture_coding_extension.bits.q_scale_type;
  57    context->desc.mpeg12.intra_vlc_format =
  58       mpeg2->picture_coding_extension.bits.intra_vlc_format;
  59    context->desc.mpeg12.alternate_scan =
  60       mpeg2->picture_coding_extension.bits.alternate_scan;
  61    /*repeat_first_field*/
  62    /*progressive_frame*/
  63    /*is_first_field*/
  64 }
  65
  66 void vlVaHandleIQMatrixBufferMPEG12(vlVaContext *context, vlVaBuffer *buf)
  67 {
  68    VAIQMatrixBufferMPEG2 *mpeg2 = buf->data;
  69
  70    assert(buf->size >= sizeof(VAIQMatrixBufferMPEG2) && buf->num_elements == 1);
  71    if (mpeg2->load_intra_quantiser_matrix)
  72       context->desc.mpeg12.intra_matrix = mpeg2->intra_quantiser_matrix;
  73    else
  74       context->desc.mpeg12.intra_matrix = NULL;
  75
  76    if (mpeg2->load_non_intra_quantiser_matrix)
  77       context->desc.mpeg12.non_intra_matrix = mpeg2->non_intra_quantiser_matrix;
  78    else
  79       context->desc.mpeg12.non_intra_matrix = NULL;
  80 }
  81
  82 void vlVaHandleSliceParameterBufferMPEG12(vlVaContext *context, vlVaBuffer *buf)
  83 {
  84    assert(buf->size >= sizeof(VASliceParameterBufferMPEG2) && buf->num_elements == 1);
  85    context->desc.mpeg12.num_slices += buf->num_elements;
  86 }