Commit | Line | Data |
---|---|---|
2ba45a60 DM |
1 | /* |
2 | * Copyright (c) 2014 RISC OS Open Ltd | |
3 | * Author: Ben Avison <bavison@riscosopen.org> | |
4 | * | |
5 | * This file is part of FFmpeg. | |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU Lesser General Public | |
9 | * License as published by the Free Software Foundation; either | |
10 | * version 2.1 of the License, or (at your option) any later version. | |
11 | * | |
12 | * FFmpeg is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public | |
18 | * License along with FFmpeg; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
21 | ||
22 | #include <stdint.h> | |
23 | ||
24 | #include "libavutil/arm/cpu.h" | |
25 | #include "libavutil/attributes.h" | |
26 | #include "libavcodec/mlpdsp.h" | |
27 | ||
28 | void ff_mlp_filter_channel_arm(int32_t *state, const int32_t *coeff, | |
29 | int firorder, int iirorder, | |
30 | unsigned int filter_shift, int32_t mask, | |
31 | int blocksize, int32_t *sample_buffer); | |
32 | void ff_mlp_rematrix_channel_arm(int32_t *samples, | |
33 | const int32_t *coeffs, | |
34 | const uint8_t *bypassed_lsbs, | |
35 | const int8_t *noise_buffer, | |
36 | int index, | |
37 | unsigned int dest_ch, | |
38 | uint16_t blockpos, | |
39 | unsigned int maxchan, | |
40 | int matrix_noise_shift, | |
41 | int access_unit_size_pow2, | |
42 | int32_t mask); | |
43 | ||
44 | #define DECLARE_PACK(order,channels,shift) \ | |
45 | int32_t ff_mlp_pack_output_##order##order_##channels##ch_##shift##shift_armv6(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int); | |
46 | #define ENUMERATE_PACK(order,channels,shift) \ | |
47 | ff_mlp_pack_output_##order##order_##channels##ch_##shift##shift_armv6, | |
48 | #define PACK_CHANNELS(macro,order,channels) \ | |
49 | macro(order,channels,0) \ | |
50 | macro(order,channels,1) \ | |
51 | macro(order,channels,2) \ | |
52 | macro(order,channels,3) \ | |
53 | macro(order,channels,4) \ | |
54 | macro(order,channels,5) \ | |
55 | macro(order,channels,mixed) | |
56 | #define PACK_ORDER(macro,order) \ | |
57 | PACK_CHANNELS(macro,order,2) \ | |
58 | PACK_CHANNELS(macro,order,6) \ | |
59 | PACK_CHANNELS(macro,order,8) | |
60 | #define PACK_ALL(macro) \ | |
61 | PACK_ORDER(macro,outof) \ | |
62 | PACK_ORDER(macro,in) | |
63 | PACK_ALL(DECLARE_PACK) | |
64 | ||
65 | #define ff_mlp_pack_output_outoforder_2ch_mixedshift_armv6 0 | |
66 | #define ff_mlp_pack_output_outoforder_6ch_mixedshift_armv6 0 | |
67 | #define ff_mlp_pack_output_outoforder_8ch_mixedshift_armv6 0 | |
68 | #if CONFIG_THUMB | |
69 | #define ff_mlp_pack_output_outoforder_2ch_0shift_armv6 0 | |
70 | #define ff_mlp_pack_output_outoforder_2ch_1shift_armv6 0 | |
71 | #define ff_mlp_pack_output_outoforder_2ch_2shift_armv6 0 | |
72 | #define ff_mlp_pack_output_outoforder_2ch_3shift_armv6 0 | |
73 | #define ff_mlp_pack_output_outoforder_2ch_4shift_armv6 0 | |
74 | #define ff_mlp_pack_output_outoforder_2ch_5shift_armv6 0 | |
75 | #define ff_mlp_pack_output_outoforder_6ch_0shift_armv6 0 | |
76 | #define ff_mlp_pack_output_outoforder_6ch_1shift_armv6 0 | |
77 | #define ff_mlp_pack_output_outoforder_6ch_2shift_armv6 0 | |
78 | #define ff_mlp_pack_output_outoforder_6ch_3shift_armv6 0 | |
79 | #define ff_mlp_pack_output_outoforder_6ch_4shift_armv6 0 | |
80 | #define ff_mlp_pack_output_outoforder_6ch_5shift_armv6 0 | |
81 | #define ff_mlp_pack_output_outoforder_8ch_0shift_armv6 0 | |
82 | #define ff_mlp_pack_output_outoforder_8ch_1shift_armv6 0 | |
83 | #define ff_mlp_pack_output_outoforder_8ch_2shift_armv6 0 | |
84 | #define ff_mlp_pack_output_outoforder_8ch_3shift_armv6 0 | |
85 | #define ff_mlp_pack_output_outoforder_8ch_4shift_armv6 0 | |
86 | #define ff_mlp_pack_output_outoforder_8ch_5shift_armv6 0 | |
87 | #endif | |
88 | ||
89 | static int32_t (*mlp_select_pack_output_armv6(uint8_t *ch_assign, | |
90 | int8_t *output_shift, | |
91 | uint8_t max_matrix_channel, | |
92 | int is32))(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int) | |
93 | { | |
94 | int ch_index; | |
95 | int shift = output_shift[0] < 0 || output_shift[0] > 5 ? 6 : output_shift[0]; | |
96 | int inorder = 1; | |
97 | static int32_t (*const routine[2*3*7])(int32_t, uint16_t, int32_t (*)[], void *, uint8_t*, int8_t *, uint8_t, int) = { | |
98 | PACK_ALL(ENUMERATE_PACK) | |
99 | }; | |
100 | int i; | |
101 | ||
102 | if (!is32) // don't support 16-bit output (it's not used by TrueHD) | |
103 | return ff_mlp_pack_output; | |
104 | ||
105 | switch (max_matrix_channel) { | |
106 | case 1: | |
107 | ch_index = 0; | |
108 | break; | |
109 | case 5: | |
110 | ch_index = 1; | |
111 | break; | |
112 | case 7: | |
113 | ch_index = 2; | |
114 | break; | |
115 | default: | |
116 | return ff_mlp_pack_output; | |
117 | } | |
118 | ||
119 | for (i = 0; i <= max_matrix_channel; i++) { | |
120 | if (shift != 6 && output_shift[i] != shift) | |
121 | shift = 6; // indicate mixed shifts | |
122 | if (ch_assign[i] != i) | |
123 | inorder = 0; | |
124 | } | |
125 | #if CONFIG_THUMB | |
126 | if (!inorder) | |
127 | return ff_mlp_pack_output; // can't currently handle an order array except in ARM mode | |
128 | #else | |
129 | if (shift == 6 && !inorder) | |
130 | return ff_mlp_pack_output; // can't currently handle both an order array and a shift array | |
131 | #endif | |
132 | ||
133 | return routine[(inorder*3+ch_index)*7+shift]; | |
134 | } | |
135 | ||
136 | av_cold void ff_mlpdsp_init_arm(MLPDSPContext *c) | |
137 | { | |
138 | int cpu_flags = av_get_cpu_flags(); | |
139 | ||
140 | if (have_armv5te(cpu_flags)) { | |
141 | c->mlp_filter_channel = ff_mlp_filter_channel_arm; | |
142 | c->mlp_rematrix_channel = ff_mlp_rematrix_channel_arm; | |
143 | } | |
144 | if (have_armv6(cpu_flags)) | |
145 | c->mlp_select_pack_output = mlp_select_pack_output_armv6; | |
146 | } |