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
vlVaHandlePictureParameterBufferMPEG4(vlVaDriver * drv,vlVaContext * context,vlVaBuffer * buf)30 void vlVaHandlePictureParameterBufferMPEG4(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
31 {
32 static const uint8_t default_intra_quant_matrix[64] = { 0 };
33 static const uint8_t default_non_intra_quant_matrix[64] = { 0 };
34
35 VAPictureParameterBufferMPEG4 *mpeg4 = buf->data;
36 unsigned i;
37
38 assert(buf->size >= sizeof(VAPictureParameterBufferMPEG4) && buf->num_elements == 1);
39
40 context->mpeg4.pps = *mpeg4;
41
42 /* vop_width */
43 /* vop_height */
44 /* forward_reference_picture */
45 /* backward_reference_picture */
46 context->desc.mpeg4.short_video_header =
47 mpeg4->vol_fields.bits.short_video_header;
48 /* chroma_format */
49 context->desc.mpeg4.interlaced = mpeg4->vol_fields.bits.interlaced;
50 /* obmc_disable */
51 /* sprite_enable */
52 /* sprite_warping_accuracy */
53 context->desc.mpeg4.quant_type = mpeg4->vol_fields.bits.quant_type;
54 context->desc.mpeg4.quarter_sample = mpeg4->vol_fields.bits.quarter_sample;
55 /* data_partitioned */
56 /* reversible_vlc */
57 context->desc.mpeg4.resync_marker_disable =
58 mpeg4->vol_fields.bits.resync_marker_disable;
59 /* no_of_sprite_warping_points */
60 /* sprite_trajectory_du */
61 /* sprite_trajectory_dv */
62 /* quant_precision */
63 context->desc.mpeg4.vop_coding_type = mpeg4->vop_fields.bits.vop_coding_type;
64 /* backward_reference_vop_coding_type */
65 /* vop_rounding_type */
66 /* intra_dc_vlc_thr */
67 context->desc.mpeg4.top_field_first =
68 mpeg4->vop_fields.bits.top_field_first;
69 context->desc.mpeg4.alternate_vertical_scan_flag =
70 mpeg4->vop_fields.bits.alternate_vertical_scan_flag;
71 context->desc.mpeg4.vop_fcode_forward = mpeg4->vop_fcode_forward;
72 context->desc.mpeg4.vop_fcode_backward = mpeg4->vop_fcode_backward;
73 context->desc.mpeg4.vop_time_increment_resolution =
74 mpeg4->vop_time_increment_resolution;
75 /* num_gobs_in_vop */
76 /* num_macroblocks_in_gob */
77 context->desc.mpeg4.trb[0] = mpeg4->TRB;
78 context->desc.mpeg4.trb[1] = mpeg4->TRB;
79 context->desc.mpeg4.trd[0] = mpeg4->TRD;
80 context->desc.mpeg4.trd[1] = mpeg4->TRD;
81
82 /* default [non-]intra quant matrix because mpv does not set these
83 matrices */
84 if (!context->desc.mpeg4.intra_matrix)
85 context->desc.mpeg4.intra_matrix = default_intra_quant_matrix;
86 if (!context->desc.mpeg4.non_intra_matrix)
87 context->desc.mpeg4.non_intra_matrix = default_non_intra_quant_matrix;
88
89 vlVaGetReferenceFrame(drv, mpeg4->forward_reference_picture, &context->desc.mpeg4.ref[0]);
90 vlVaGetReferenceFrame(drv, mpeg4->backward_reference_picture, &context->desc.mpeg4.ref[1]);
91
92 context->mpeg4.vti_bits = 0;
93 for (i = context->desc.mpeg4.vop_time_increment_resolution; i > 0; i /= 2)
94 ++context->mpeg4.vti_bits;
95 }
96
vlVaHandleIQMatrixBufferMPEG4(vlVaContext * context,vlVaBuffer * buf)97 void vlVaHandleIQMatrixBufferMPEG4(vlVaContext *context, vlVaBuffer *buf)
98 {
99 VAIQMatrixBufferMPEG4 *mpeg4 = buf->data;
100
101 assert(buf->size >= sizeof(VAIQMatrixBufferMPEG4) && buf->num_elements == 1);
102 if (mpeg4->load_intra_quant_mat)
103 context->desc.mpeg4.intra_matrix = mpeg4->intra_quant_mat;
104 else
105 context->desc.mpeg4.intra_matrix = NULL;
106
107 if (mpeg4->load_non_intra_quant_mat)
108 context->desc.mpeg4.non_intra_matrix = mpeg4->non_intra_quant_mat;
109 else
110 context->desc.mpeg4.non_intra_matrix = NULL;
111 }
112
vlVaHandleSliceParameterBufferMPEG4(vlVaContext * context,vlVaBuffer * buf)113 void vlVaHandleSliceParameterBufferMPEG4(vlVaContext *context, vlVaBuffer *buf)
114 {
115 VASliceParameterBufferMPEG4 *mpeg4 = buf->data;
116
117 assert(buf->size >= sizeof(VASliceParameterBufferMPEG4) && buf->num_elements == 1);
118 context->mpeg4.quant_scale = mpeg4->quant_scale;
119 }
120
121 struct bit_stream
122 {
123 uint8_t *data;
124 unsigned int length; /* bits */
125 unsigned int pos; /* bits */
126 };
127
128 static inline void
write_bit(struct bit_stream * writer,unsigned int bit)129 write_bit(struct bit_stream *writer, unsigned int bit)
130 {
131 assert(writer->length > (writer)->pos);
132 writer->data[writer->pos>>3] |= ((bit & 1)<<(7 - (writer->pos & 7)));
133 writer->pos++;
134 }
135
136 static inline void
write_bits(struct bit_stream * writer,unsigned int bits,unsigned int len)137 write_bits(struct bit_stream *writer, unsigned int bits, unsigned int len)
138 {
139 int i;
140 assert(len <= sizeof(bits)*8);
141 for (i = len - 1; i >= 0; i--)
142 write_bit(writer, bits>>i);
143 }
144
vlVaDecoderFixMPEG4Startcode(vlVaContext * context)145 void vlVaDecoderFixMPEG4Startcode(vlVaContext *context)
146 {
147 uint8_t vop[] = { 0x00, 0x00, 0x01, 0xb6, 0x00, 0x00, 0x00, 0x00, 0x00 };
148 struct bit_stream bs_vop = {vop, sizeof(vop)*8, 32};
149 unsigned int vop_time_inc;
150 int mod_time;
151 unsigned int vop_size;
152 unsigned int vop_coding_type = context->desc.mpeg4.vop_coding_type;
153
154 context->mpeg4.start_code_size = 0;
155 memset(context->mpeg4.start_code, 0, sizeof(context->mpeg4.start_code));
156 if (vop_coding_type+1 == PIPE_MPEG12_PICTURE_CODING_TYPE_I) {
157 unsigned int vop_time = context->mpeg4.frame_num/
158 context->desc.mpeg4.vop_time_increment_resolution;
159 unsigned int vop_hour = vop_time / 3600;
160 unsigned int vop_minute = (vop_time / 60) % 60;
161 unsigned int vop_second = vop_time % 60;
162 uint8_t group_of_vop[] = { 0x00, 0x00, 0x01, 0xb3, 0x00, 0x00, 0x00 };
163 struct bit_stream bs_gvop = {group_of_vop, sizeof(group_of_vop)*8, 32};
164
165 write_bits(&bs_gvop, vop_hour, 5);
166 write_bits(&bs_gvop, vop_minute, 6);
167 write_bit(&bs_gvop, 1); /* marker_bit */
168 write_bits(&bs_gvop, vop_second, 6);
169 write_bit(&bs_gvop, 0); /* closed_gov */ /* TODO replace magic */
170 write_bit(&bs_gvop, 0); /* broken_link */
171 write_bit(&bs_gvop, 0); /* padding */
172 write_bits(&bs_gvop, 7, 3); /* padding */
173
174 memcpy(context->mpeg4.start_code, group_of_vop, sizeof(group_of_vop));
175 context->mpeg4.start_code_size += sizeof(group_of_vop);
176 }
177
178 write_bits(&bs_vop, vop_coding_type, 2);
179 mod_time = context->mpeg4.frame_num %
180 context->desc.mpeg4.vop_time_increment_resolution == 0 &&
181 vop_coding_type+1 != PIPE_MPEG12_PICTURE_CODING_TYPE_I;
182 while (mod_time--)
183 write_bit(&bs_vop, 1); /* modulo_time_base */
184 write_bit(&bs_vop, 0); /* modulo_time_base */
185
186 write_bit(&bs_vop, 1); /* marker_bit */
187 vop_time_inc = context->mpeg4.frame_num %
188 context->desc.mpeg4.vop_time_increment_resolution;
189 write_bits(&bs_vop, vop_time_inc, context->mpeg4.vti_bits);
190 write_bit(&bs_vop, 1); /* marker_bit */
191 write_bit(&bs_vop, 1); /* vop_coded */
192 if (vop_coding_type+1 == PIPE_MPEG12_PICTURE_CODING_TYPE_P)
193 write_bit(&bs_vop, context->mpeg4.pps.vop_fields.bits.vop_rounding_type);
194 write_bits(&bs_vop, context->mpeg4.pps.vop_fields.bits.intra_dc_vlc_thr, 3);
195 if (context->mpeg4.pps.vol_fields.bits.interlaced) {
196 write_bit(&bs_vop, context->mpeg4.pps.vop_fields.bits.top_field_first);
197 write_bit(&bs_vop, context->mpeg4.pps.vop_fields.bits.alternate_vertical_scan_flag);
198 }
199
200 write_bits(&bs_vop, context->mpeg4.quant_scale, context->mpeg4.pps.quant_precision);
201 if (vop_coding_type+1 != PIPE_MPEG12_PICTURE_CODING_TYPE_I)
202 write_bits(&bs_vop, context->desc.mpeg4.vop_fcode_forward, 3);
203 if (vop_coding_type+1 == PIPE_MPEG12_PICTURE_CODING_TYPE_B)
204 write_bits(&bs_vop, context->desc.mpeg4.vop_fcode_backward, 3);
205
206 vop_size = bs_vop.pos/8;
207 memcpy(context->mpeg4.start_code + context->mpeg4.start_code_size, vop, vop_size);
208 context->mpeg4.start_code_size += vop_size;
209 }
210