FFmpeg
vp9dsp_mips.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2015 Shivraj Patil (Shivraj.Patil@imgtec.com)
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVCODEC_MIPS_VP9DSP_MIPS_H
22 #define AVCODEC_MIPS_VP9DSP_MIPS_H
23 
24 #define VP9_8TAP_MIPS_MSA_FUNC(SIZE, type, type_idx) \
25 void ff_put_8tap_##type##_##SIZE##h_msa(uint8_t *dst, ptrdiff_t dststride, \
26  const uint8_t *src, \
27  ptrdiff_t srcstride, \
28  int h, int mx, int my); \
29  \
30 void ff_put_8tap_##type##_##SIZE##v_msa(uint8_t *dst, ptrdiff_t dststride, \
31  const uint8_t *src, \
32  ptrdiff_t srcstride, \
33  int h, int mx, int my); \
34  \
35 void ff_put_8tap_##type##_##SIZE##hv_msa(uint8_t *dst, ptrdiff_t dststride, \
36  const uint8_t *src, \
37  ptrdiff_t srcstride, \
38  int h, int mx, int my); \
39  \
40 void ff_avg_8tap_##type##_##SIZE##h_msa(uint8_t *dst, ptrdiff_t dststride, \
41  const uint8_t *src, \
42  ptrdiff_t srcstride, \
43  int h, int mx, int my); \
44  \
45 void ff_avg_8tap_##type##_##SIZE##v_msa(uint8_t *dst, ptrdiff_t dststride, \
46  const uint8_t *src, \
47  ptrdiff_t srcstride, \
48  int h, int mx, int my); \
49  \
50 void ff_avg_8tap_##type##_##SIZE##hv_msa(uint8_t *dst, ptrdiff_t dststride, \
51  const uint8_t *src, \
52  ptrdiff_t srcstride, \
53  int h, int mx, int my);
54 
55 #define VP9_BILINEAR_MIPS_MSA_FUNC(SIZE) \
56 void ff_put_bilin_##SIZE##h_msa(uint8_t *dst, ptrdiff_t dststride, \
57  const uint8_t *src, ptrdiff_t srcstride, \
58  int h, int mx, int my); \
59  \
60 void ff_put_bilin_##SIZE##v_msa(uint8_t *dst, ptrdiff_t dststride, \
61  const uint8_t *src, ptrdiff_t srcstride, \
62  int h, int mx, int my); \
63  \
64 void ff_put_bilin_##SIZE##hv_msa(uint8_t *dst, ptrdiff_t dststride, \
65  const uint8_t *src, ptrdiff_t srcstride, \
66  int h, int mx, int my); \
67  \
68 void ff_avg_bilin_##SIZE##h_msa(uint8_t *dst, ptrdiff_t dststride, \
69  const uint8_t *src, ptrdiff_t srcstride, \
70  int h, int mx, int my); \
71  \
72 void ff_avg_bilin_##SIZE##v_msa(uint8_t *dst, ptrdiff_t dststride, \
73  const uint8_t *src, ptrdiff_t srcstride, \
74  int h, int mx, int my); \
75  \
76 void ff_avg_bilin_##SIZE##hv_msa(uint8_t *dst, ptrdiff_t dststride, \
77  const uint8_t *src, ptrdiff_t srcstride, \
78  int h, int mx, int my);
79 
80 #define VP9_COPY_AVG_MIPS_MSA_FUNC(SIZE) \
81 void ff_copy##SIZE##_msa(uint8_t *dst, ptrdiff_t dststride, \
82  const uint8_t *src, ptrdiff_t srcstride, \
83  int h, int mx, int my); \
84  \
85 void ff_avg##SIZE##_msa(uint8_t *dst, ptrdiff_t dststride, \
86  const uint8_t *src, ptrdiff_t srcstride, \
87  int h, int mx, int my);
88 
94 
100 
106 
112 
118 
119 #undef VP9_8TAP_MIPS_MSA_FUNC
120 #undef VP9_BILINEAR_MIPS_MSA_FUNC
121 #undef VP9_COPY_AVG_MIPS_MSA_FUNC
122 
123 void ff_loop_filter_h_4_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
124  int32_t i, int32_t h);
125 void ff_loop_filter_h_8_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
126  int32_t i, int32_t h);
127 void ff_loop_filter_h_16_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
128  int32_t i, int32_t h);
129 void ff_loop_filter_v_4_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
130  int32_t i, int32_t h);
131 void ff_loop_filter_v_8_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
132  int32_t i, int32_t h);
133 void ff_loop_filter_v_16_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
134  int32_t i, int32_t h);
135 void ff_loop_filter_h_44_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
136  int32_t i, int32_t h);
137 void ff_loop_filter_h_88_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
138  int32_t i, int32_t h);
139 void ff_loop_filter_h_16_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
140  int32_t i, int32_t h);
141 void ff_loop_filter_v_44_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
142  int32_t i, int32_t h);
143 void ff_loop_filter_v_88_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
144  int32_t i, int32_t h);
145 void ff_loop_filter_v_16_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
146  int32_t i, int32_t h);
147 void ff_loop_filter_h_48_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
148  int32_t i, int32_t h);
149 void ff_loop_filter_h_84_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
150  int32_t i, int32_t h);
151 void ff_loop_filter_v_48_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
152  int32_t i, int32_t h);
153 void ff_loop_filter_v_84_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e,
154  int32_t i, int32_t h);
155 void ff_idct_idct_4x4_add_msa(uint8_t *dst, ptrdiff_t stride,
156  int16_t *block, int eob);
157 void ff_idct_idct_8x8_add_msa(uint8_t *dst, ptrdiff_t stride,
158  int16_t *block, int eob);
159 void ff_idct_idct_16x16_add_msa(uint8_t *dst, ptrdiff_t stride,
160  int16_t *block, int eob);
161 void ff_idct_idct_32x32_add_msa(uint8_t *dst, ptrdiff_t stride,
162  int16_t *block, int eob);
163 void ff_iadst_iadst_4x4_add_msa(uint8_t *dst, ptrdiff_t stride,
164  int16_t *block, int eob);
165 void ff_iadst_iadst_8x8_add_msa(uint8_t *dst, ptrdiff_t stride,
166  int16_t *block, int eob);
167 void ff_iadst_iadst_16x16_add_msa(uint8_t *dst, ptrdiff_t stride,
168  int16_t *block, int eob);
169 void ff_iadst_idct_4x4_add_msa(uint8_t *dst, ptrdiff_t stride,
170  int16_t *block, int eob);
171 void ff_iadst_idct_8x8_add_msa(uint8_t *dst, ptrdiff_t stride,
172  int16_t *block, int eob);
173 void ff_iadst_idct_16x16_add_msa(uint8_t *dst, ptrdiff_t stride,
174  int16_t *block, int eob);
175 void ff_idct_iadst_4x4_add_msa(uint8_t *pu8Dest, ptrdiff_t stride,
176  int16_t *block, int eob);
177 void ff_idct_iadst_8x8_add_msa(uint8_t *pu8Dest, ptrdiff_t stride,
178  int16_t *block, int eob);
179 void ff_idct_iadst_16x16_add_msa(uint8_t *pu8Dest, ptrdiff_t stride,
180  int16_t *block, int eob);
181 void ff_iwht_iwht_4x4_add_msa(uint8_t *dst, ptrdiff_t stride,
182  int16_t *block, int eob);
183 
184 void ff_vert_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
185  const uint8_t *top);
186 void ff_vert_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
187  const uint8_t *top);
188 void ff_hor_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
189  const uint8_t *top);
190 void ff_hor_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
191  const uint8_t *top);
192 void ff_dc_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
193  const uint8_t *top);
194 void ff_dc_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
195  const uint8_t *top);
196 void ff_dc_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
197  const uint8_t *top);
198 void ff_dc_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
199  const uint8_t *top);
200 void ff_dc_left_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
201  const uint8_t *top);
202 void ff_dc_left_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
203  const uint8_t *top);
204 void ff_dc_left_16x16_msa(uint8_t *dst, ptrdiff_t stride,
205  const uint8_t *left, const uint8_t *top);
206 void ff_dc_left_32x32_msa(uint8_t *dst, ptrdiff_t stride,
207  const uint8_t *left, const uint8_t *top);
208 void ff_dc_top_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
209  const uint8_t *top);
210 void ff_dc_top_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
211  const uint8_t *top);
212 void ff_dc_top_16x16_msa(uint8_t *dst, ptrdiff_t stride,
213  const uint8_t *left, const uint8_t *top);
214 void ff_dc_top_32x32_msa(uint8_t *dst, ptrdiff_t stride,
215  const uint8_t *left, const uint8_t *top);
216 void ff_dc_128_16x16_msa(uint8_t *dst, ptrdiff_t stride,
217  const uint8_t *left, const uint8_t *top);
218 void ff_dc_128_32x32_msa(uint8_t *dst, ptrdiff_t stride,
219  const uint8_t *left, const uint8_t *top);
220 void ff_dc_127_16x16_msa(uint8_t *dst, ptrdiff_t stride,
221  const uint8_t *left, const uint8_t *top);
222 void ff_dc_127_32x32_msa(uint8_t *dst, ptrdiff_t stride,
223  const uint8_t *left, const uint8_t *top);
224 void ff_dc_129_16x16_msa(uint8_t *dst, ptrdiff_t stride,
225  const uint8_t *left, const uint8_t *top);
226 void ff_dc_129_32x32_msa(uint8_t *dst, ptrdiff_t stride,
227  const uint8_t *left, const uint8_t *top);
228 void ff_tm_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
229  const uint8_t *top);
230 void ff_tm_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
231  const uint8_t *top);
232 void ff_tm_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
233  const uint8_t *top);
234 void ff_tm_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left,
235  const uint8_t *top);
236 
237 #define VP9_8TAP_MIPS_MMI_FUNC(SIZE, type, type_idx) \
238 void ff_put_8tap_##type##_##SIZE##h_mmi(uint8_t *dst, ptrdiff_t dststride, \
239  const uint8_t *src, \
240  ptrdiff_t srcstride, \
241  int h, int mx, int my); \
242  \
243 void ff_put_8tap_##type##_##SIZE##v_mmi(uint8_t *dst, ptrdiff_t dststride, \
244  const uint8_t *src, \
245  ptrdiff_t srcstride, \
246  int h, int mx, int my); \
247  \
248 void ff_put_8tap_##type##_##SIZE##hv_mmi(uint8_t *dst, ptrdiff_t dststride, \
249  const uint8_t *src, \
250  ptrdiff_t srcstride, \
251  int h, int mx, int my); \
252  \
253 void ff_avg_8tap_##type##_##SIZE##h_mmi(uint8_t *dst, ptrdiff_t dststride, \
254  const uint8_t *src, \
255  ptrdiff_t srcstride, \
256  int h, int mx, int my); \
257  \
258 void ff_avg_8tap_##type##_##SIZE##v_mmi(uint8_t *dst, ptrdiff_t dststride, \
259  const uint8_t *src, \
260  ptrdiff_t srcstride, \
261  int h, int mx, int my); \
262  \
263 void ff_avg_8tap_##type##_##SIZE##hv_mmi(uint8_t *dst, ptrdiff_t dststride, \
264  const uint8_t *src, \
265  ptrdiff_t srcstride, \
266  int h, int mx, int my);
267 
273 
279 
285 #undef VP9_8TAP_MIPS_MMI_FUNC
286 
287 #endif // #ifndef AVCODEC_MIPS_VP9DSP_MIPS_H
ff_iadst_idct_16x16_add_msa
void ff_iadst_idct_16x16_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2168
stride
int stride
Definition: mace.c:144
ff_idct_idct_32x32_add_msa
void ff_idct_idct_32x32_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2106
ff_dc_left_4x4_msa
void ff_dc_left_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_dc_4x4_msa
void ff_dc_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:108
ff_iadst_iadst_4x4_add_msa
void ff_iadst_iadst_4x4_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2120
ff_hor_16x16_msa
void ff_hor_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:60
ff_dc_8x8_msa
void ff_dc_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:153
ff_idct_iadst_4x4_add_msa
void ff_idct_iadst_4x4_add_msa(uint8_t *pu8Dest, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2138
ff_loop_filter_h_16_8_msa
void ff_loop_filter_h_16_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:2065
ff_dc_left_8x8_msa
void ff_dc_left_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_dc_129_32x32_msa
void ff_dc_129_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_iadst_idct_8x8_add_msa
void ff_iadst_idct_8x8_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2162
ff_loop_filter_h_48_16_msa
void ff_loop_filter_h_48_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1565
ff_vert_32x32_msa
void ff_vert_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:45
ff_dc_top_32x32_msa
void ff_dc_top_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_idct_iadst_16x16_add_msa
void ff_idct_iadst_16x16_add_msa(uint8_t *pu8Dest, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2150
ff_idct_idct_8x8_add_msa
void ff_idct_idct_8x8_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2077
FILTER_8TAP_SHARP
@ FILTER_8TAP_SHARP
Definition: vp9.h:67
ff_loop_filter_v_16_16_msa
void ff_loop_filter_v_16_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:958
ff_dc_16x16_msa
void ff_dc_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:209
ff_tm_16x16_msa
void ff_tm_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:418
ff_dc_128_16x16_msa
void ff_dc_128_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
int32_t
int32_t
Definition: audio_convert.c:194
ff_dc_top_4x4_msa
void ff_dc_top_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_tm_8x8_msa
void ff_tm_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:385
ff_idct_idct_4x4_add_msa
void ff_idct_idct_4x4_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2066
ff_dc_127_32x32_msa
void ff_dc_127_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_vert_16x16_msa
void ff_vert_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:31
ff_dc_32x32_msa
void ff_dc_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:259
FILTER_8TAP_REGULAR
@ FILTER_8TAP_REGULAR
Definition: vp9.h:66
ff_loop_filter_v_48_16_msa
void ff_loop_filter_v_48_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:479
ff_dc_128_32x32_msa
void ff_dc_128_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_idct_iadst_8x8_add_msa
void ff_idct_iadst_8x8_add_msa(uint8_t *pu8Dest, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2144
ff_dc_127_16x16_msa
void ff_dc_127_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_loop_filter_h_16_16_msa
void ff_loop_filter_h_16_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:2501
ff_iadst_iadst_8x8_add_msa
void ff_iadst_iadst_8x8_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2126
ff_loop_filter_v_8_8_msa
void ff_loop_filter_v_8_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:255
ff_tm_32x32_msa
void ff_tm_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:469
ff_idct_idct_16x16_add_msa
void ff_idct_idct_16x16_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2091
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
ff_dc_top_16x16_msa
void ff_dc_top_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
FILTER_8TAP_SMOOTH
@ FILTER_8TAP_SMOOTH
Definition: vp9.h:65
ff_loop_filter_h_4_8_msa
void ff_loop_filter_h_4_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1198
uint8_t
uint8_t
Definition: audio_convert.c:194
ff_loop_filter_v_16_8_msa
void ff_loop_filter_v_16_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:974
ff_loop_filter_v_88_16_msa
void ff_loop_filter_v_88_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:329
ff_iadst_idct_4x4_add_msa
void ff_iadst_idct_4x4_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2156
ff_dc_left_16x16_msa
void ff_dc_left_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
left
Tag MUST be and< 10hcoeff half pel interpolation filter coefficients, hcoeff[0] are the 2 middle coefficients[1] are the next outer ones and so on, resulting in a filter like:...eff[2], hcoeff[1], hcoeff[0], hcoeff[0], hcoeff[1], hcoeff[2] ... the sign of the coefficients is not explicitly stored but alternates after each coeff and coeff[0] is positive, so ...,+,-,+,-,+,+,-,+,-,+,... hcoeff[0] is not explicitly stored but found by subtracting the sum of all stored coefficients with signs from 32 hcoeff[0]=32 - hcoeff[1] - hcoeff[2] - ... a good choice for hcoeff and htaps is htaps=6 hcoeff={40,-10, 2} an alternative which requires more computations at both encoder and decoder side and may or may not be better is htaps=8 hcoeff={42,-14, 6,-2}ref_frames minimum of the number of available reference frames and max_ref_frames for example the first frame after a key frame always has ref_frames=1spatial_decomposition_type wavelet type 0 is a 9/7 symmetric compact integer wavelet 1 is a 5/3 symmetric compact integer wavelet others are reserved stored as delta from last, last is reset to 0 if always_reset||keyframeqlog quality(logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset||keyframemv_scale stored as delta from last, last is reset to 0 if always_reset||keyframe FIXME check that everything works fine if this changes between framesqbias dequantization bias stored as delta from last, last is reset to 0 if always_reset||keyframeblock_max_depth maximum depth of the block tree stored as delta from last, last is reset to 0 if always_reset||keyframequant_table quantization tableHighlevel bitstream structure:==============================--------------------------------------------|Header|--------------------------------------------|------------------------------------|||Block0||||split?||||yes no||||......... intra?||||:Block01 :yes no||||:Block02 :....... ..........||||:Block03 ::y DC ::ref index:||||:Block04 ::cb DC ::motion x :||||......... :cr DC ::motion y :||||....... ..........|||------------------------------------||------------------------------------|||Block1|||...|--------------------------------------------|------------ ------------ ------------|||Y subbands||Cb subbands||Cr subbands||||--- ---||--- ---||--- ---|||||LL0||HL0||||LL0||HL0||||LL0||HL0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||LH0||HH0||||LH0||HH0||||LH0||HH0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HL1||LH1||||HL1||LH1||||HL1||LH1|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HH1||HL2||||HH1||HL2||||HH1||HL2|||||...||...||...|||------------ ------------ ------------|--------------------------------------------Decoding process:=================------------|||Subbands|------------||||------------|Intra DC||||LL0 subband prediction ------------|\ Dequantization ------------------- \||Reference frames|\ IDWT|------- -------|Motion \|||Frame 0||Frame 1||Compensation . OBMC v -------|------- -------|--------------. \------> Frame n output Frame Frame<----------------------------------/|...|------------------- Range Coder:============Binary Range Coder:------------------- The implemented range coder is an adapted version based upon "Range encoding: an algorithm for removing redundancy from a digitised message." by G. N. N. Martin. The symbols encoded by the Snow range coder are bits(0|1). The associated probabilities are not fix but change depending on the symbol mix seen so far. bit seen|new state ---------+----------------------------------------------- 0|256 - state_transition_table[256 - old_state];1|state_transition_table[old_state];state_transition_table={ 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 194, 194, 195, 196, 197, 198, 199, 200, 201, 202, 202, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 215, 215, 216, 217, 218, 219, 220, 220, 222, 223, 224, 225, 226, 227, 227, 229, 229, 230, 231, 232, 234, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 248, 0, 0, 0, 0, 0, 0, 0};FIXME Range Coding of integers:------------------------- FIXME Neighboring Blocks:===================left and top are set to the respective blocks unless they are outside of the image in which case they are set to the Null block top-left is set to the top left block unless it is outside of the image in which case it is set to the left block if this block has no larger parent block or it is at the left side of its parent block and the top right block is not outside of the image then the top right block is used for top-right else the top-left block is used Null block y, cb, cr are 128 level, ref, mx and my are 0 Motion Vector Prediction:=========================1. the motion vectors of all the neighboring blocks are scaled to compensate for the difference of reference frames scaled_mv=(mv *(256 *(current_reference+1)/(mv.reference+1))+128)> the median of the scaled left
Definition: snow.txt:386
ff_iwht_iwht_4x4_add_msa
void ff_iwht_iwht_4x4_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
ff_dc_129_16x16_msa
void ff_dc_129_16x16_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
VP9_8TAP_MIPS_MMI_FUNC
#define VP9_8TAP_MIPS_MMI_FUNC(SIZE, type, type_idx)
Definition: vp9dsp_mips.h:237
VP9_8TAP_MIPS_MSA_FUNC
#define VP9_8TAP_MIPS_MSA_FUNC(SIZE, type, type_idx)
Definition: vp9dsp_mips.h:24
ff_loop_filter_h_8_8_msa
void ff_loop_filter_h_8_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1271
ff_loop_filter_v_4_8_msa
void ff_loop_filter_v_4_8_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:196
ff_loop_filter_v_44_16_msa
void ff_loop_filter_v_44_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:225
ff_iadst_iadst_16x16_add_msa
void ff_iadst_iadst_16x16_add_msa(uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob)
Definition: vp9_idct_msa.c:2132
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
h
h
Definition: vp9dsp_template.c:2038
ff_dc_top_8x8_msa
void ff_dc_top_8x8_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_hor_32x32_msa
void ff_hor_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:81
VP9_BILINEAR_MIPS_MSA_FUNC
#define VP9_BILINEAR_MIPS_MSA_FUNC(SIZE)
Definition: vp9dsp_mips.h:55
VP9_COPY_AVG_MIPS_MSA_FUNC
#define VP9_COPY_AVG_MIPS_MSA_FUNC(SIZE)
Definition: vp9dsp_mips.h:80
ff_loop_filter_h_88_16_msa
void ff_loop_filter_h_88_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1349
ff_loop_filter_h_84_16_msa
void ff_loop_filter_h_84_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1462
ff_dc_left_32x32_msa
void ff_dc_left_32x32_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
ff_loop_filter_h_44_16_msa
void ff_loop_filter_h_44_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:1225
ff_tm_4x4_msa
void ff_tm_4x4_msa(uint8_t *dst, ptrdiff_t stride, const uint8_t *left, const uint8_t *top)
Definition: vp9_intra_msa.c:357
ff_loop_filter_v_84_16_msa
void ff_loop_filter_v_84_16_msa(uint8_t *dst, ptrdiff_t stride, int32_t e, int32_t i, int32_t h)
Definition: vp9_lpf_msa.c:408