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
30const int reverse_inverse_zscan[] =
31{
32   /* Reverse inverse z scan pattern */
33    0,  2,  3,  9, 10, 20, 21, 35,
34    1,  4,  8, 11, 19, 22, 34, 36,
35    5,  7, 12, 18, 23, 33, 37, 48,
36    6, 13, 17, 24, 32, 38, 47, 49,
37   14, 16, 25, 31, 39, 46, 50, 57,
38   15, 26, 30, 40, 45, 51, 56, 58,
39   27, 29, 41, 44, 52, 55, 59, 62,
40   28, 42, 43, 53, 54, 60, 61, 63,
41};
42
43void vlVaHandlePictureParameterBufferMPEG12(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
44{
45   VAPictureParameterBufferMPEG2 *mpeg2 = buf->data;
46
47   assert(buf->size >= sizeof(VAPictureParameterBufferMPEG2) && buf->num_elements == 1);
48   context->desc.mpeg12.num_slices = 0;
49   /*horizontal_size;*/
50   /*vertical_size;*/
51   vlVaGetReferenceFrame(drv, mpeg2->forward_reference_picture, &context->desc.mpeg12.ref[0]);
52   vlVaGetReferenceFrame(drv, mpeg2->backward_reference_picture, &context->desc.mpeg12.ref[1]);
53   context->desc.mpeg12.picture_coding_type = mpeg2->picture_coding_type;
54   context->desc.mpeg12.f_code[0][0] = ((mpeg2->f_code >> 12) & 0xf) - 1;
55   context->desc.mpeg12.f_code[0][1] = ((mpeg2->f_code >> 8) & 0xf) - 1;
56   context->desc.mpeg12.f_code[1][0] = ((mpeg2->f_code >> 4) & 0xf) - 1;
57   context->desc.mpeg12.f_code[1][1] = (mpeg2->f_code & 0xf) - 1;
58   context->desc.mpeg12.intra_dc_precision =
59      mpeg2->picture_coding_extension.bits.intra_dc_precision;
60   context->desc.mpeg12.picture_structure =
61      mpeg2->picture_coding_extension.bits.picture_structure;
62   context->desc.mpeg12.top_field_first =
63      mpeg2->picture_coding_extension.bits.top_field_first;
64   context->desc.mpeg12.frame_pred_frame_dct =
65      mpeg2->picture_coding_extension.bits.frame_pred_frame_dct;
66   context->desc.mpeg12.concealment_motion_vectors =
67      mpeg2->picture_coding_extension.bits.concealment_motion_vectors;
68   context->desc.mpeg12.q_scale_type =
69      mpeg2->picture_coding_extension.bits.q_scale_type;
70   context->desc.mpeg12.intra_vlc_format =
71      mpeg2->picture_coding_extension.bits.intra_vlc_format;
72   context->desc.mpeg12.alternate_scan =
73      mpeg2->picture_coding_extension.bits.alternate_scan;
74   /*repeat_first_field*/
75   /*progressive_frame*/
76   /*is_first_field*/
77}
78
79void vlVaHandleIQMatrixBufferMPEG12(vlVaContext *context, vlVaBuffer *buf)
80{
81   VAIQMatrixBufferMPEG2 *mpeg2 = buf->data;
82   static uint8_t temp_intra_matrix[64];
83   static uint8_t temp_nonintra_matrix[64];
84
85   assert(buf->size >= sizeof(VAIQMatrixBufferMPEG2) && buf->num_elements == 1);
86   if (mpeg2->load_intra_quantiser_matrix) {
87      /* The quantiser matrix that VAAPI provides has been applied
88         with inverse z-scan. However, what we expect in MPEG2
89         picture description is the original order. Therefore,
90         we need to reverse it back to its original order.
91      */
92      for (int i = 0; i < 64; i++)
93         temp_intra_matrix[i] =
94            mpeg2->intra_quantiser_matrix[reverse_inverse_zscan[i]];
95      context->desc.mpeg12.intra_matrix = temp_intra_matrix;
96   } else
97      context->desc.mpeg12.intra_matrix = NULL;
98
99   if (mpeg2->load_non_intra_quantiser_matrix) {
100      for (int i = 0; i < 64; i++)
101         temp_nonintra_matrix[i] =
102            mpeg2->non_intra_quantiser_matrix[reverse_inverse_zscan[i]];
103      context->desc.mpeg12.non_intra_matrix = temp_nonintra_matrix;
104   } else
105      context->desc.mpeg12.non_intra_matrix = NULL;
106}
107
108void vlVaHandleSliceParameterBufferMPEG12(vlVaContext *context, vlVaBuffer *buf)
109{
110   assert(buf->size >= sizeof(VASliceParameterBufferMPEG2));
111   context->desc.mpeg12.num_slices += buf->num_elements;
112}
113