FFmpeg  4.3
mlpdsp_init_arm.c
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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 
29  int firorder, int iirorder,
30  unsigned int filter_shift, int32_t mask,
31  int blocksize, int32_t *sample_buffer);
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)
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 
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) = {
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 
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 }
PACK_ALL
#define PACK_ALL(macro)
Definition: mlpdsp_init_arm.c:60
samples
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new samples
Definition: fate.txt:139
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
av_cold
#define av_cold
Definition: attributes.h:90
ff_mlp_pack_output
int32_t ff_mlp_pack_output(int32_t lossless_check_data, uint16_t blockpos, int32_t(*sample_buffer)[MAX_CHANNELS], void *data, uint8_t *ch_assign, int8_t *output_shift, uint8_t max_matrix_channel, int is32)
Definition: mlpdsp.c:100
mask
static const uint16_t mask[17]
Definition: lzw.c:38
mlp_select_pack_output_armv6
static int32_t(*)(int32_t, uint16_t, int32_t(*)[], void *, uint8_t *, int8_t *, uint8_t, int) mlp_select_pack_output_armv6(uint8_t *ch_assign, int8_t *output_shift, uint8_t max_matrix_channel, int is32)
Definition: mlpdsp_init_arm.c:89
int32_t
int32_t
Definition: audio_convert.c:194
ff_mlp_rematrix_channel_arm
void ff_mlp_rematrix_channel_arm(int32_t *samples, const int32_t *coeffs, const uint8_t *bypassed_lsbs, const int8_t *noise_buffer, int index, unsigned int dest_ch, uint16_t blockpos, unsigned int maxchan, int matrix_noise_shift, int access_unit_size_pow2, int32_t mask)
ENUMERATE_PACK
#define ENUMERATE_PACK(order, channels, shift)
Definition: mlpdsp_init_arm.c:46
have_armv5te
#define have_armv5te(flags)
Definition: cpu.h:25
cpu.h
index
int index
Definition: gxfenc.c:89
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
mlpdsp.h
state
static struct @314 state
attributes.h
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
uint8_t
uint8_t
Definition: audio_convert.c:194
DECLARE_PACK
#define DECLARE_PACK(order, channels, shift)
Definition: mlpdsp_init_arm.c:44
shift
static int shift(int a, int b)
Definition: sonic.c:82
ff_mlpdsp_init_arm
av_cold void ff_mlpdsp_init_arm(MLPDSPContext *c)
Definition: mlpdsp_init_arm.c:136
have_armv6
#define have_armv6(flags)
Definition: cpu.h:26
coeff
static const double coeff[2][5]
Definition: vf_owdenoise.c:72
MLPDSPContext
Definition: mlpdsp.h:49
ff_mlp_filter_channel_arm
void ff_mlp_filter_channel_arm(int32_t *state, const int32_t *coeff, int firorder, int iirorder, unsigned int filter_shift, int32_t mask, int blocksize, int32_t *sample_buffer)
int
int
Definition: ffmpeg_filter.c:192