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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavutil / cpu.c
CommitLineData
2ba45a60
DM		 1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include <stdint.h>
20
21#include "cpu.h"
22#include "cpu_internal.h"
23#include "config.h"
24#include "opt.h"
25#include "common.h"
26
27#if HAVE_SCHED_GETAFFINITY
28#ifndef _GNU_SOURCE
29# define _GNU_SOURCE
30#endif
31#include <sched.h>
32#endif
33#if HAVE_GETPROCESSAFFINITYMASK
34#include <windows.h>
35#endif
36#if HAVE_SYSCTL
37#if HAVE_SYS_PARAM_H
38#include <sys/param.h>
39#endif
40#include <sys/types.h>
41#include <sys/sysctl.h>
42#endif
43#if HAVE_UNISTD_H
44#include <unistd.h>
45#endif
46
47static int flags, checked;
48
49void av_force_cpu_flags(int arg){
50 if ( (arg & ( AV_CPU_FLAG_3DNOW |
51 AV_CPU_FLAG_3DNOWEXT |
52 AV_CPU_FLAG_SSE |
53 AV_CPU_FLAG_SSE2 |
54 AV_CPU_FLAG_SSE2SLOW |
55 AV_CPU_FLAG_SSE3 |
56 AV_CPU_FLAG_SSE3SLOW |
57 AV_CPU_FLAG_SSSE3 |
58 AV_CPU_FLAG_SSE4 |
59 AV_CPU_FLAG_SSE42 |
60 AV_CPU_FLAG_AVX |
61 AV_CPU_FLAG_XOP |
62 AV_CPU_FLAG_FMA3 |
63 AV_CPU_FLAG_FMA4 |
64 AV_CPU_FLAG_AVX2 ))
65 && !(arg & AV_CPU_FLAG_MMX)) {
66 av_log(NULL, AV_LOG_WARNING, "MMX implied by specified flags\n");
67 arg |= AV_CPU_FLAG_MMX;
68 }
69
70 flags = arg;
71 checked = arg != -1;
72}
73
74int av_get_cpu_flags(void)
75{
76 if (checked)
77 return flags;
78
79 if (ARCH_AARCH64)
80 flags = ff_get_cpu_flags_aarch64();
81 if (ARCH_ARM)
82 flags = ff_get_cpu_flags_arm();
83 if (ARCH_PPC)
84 flags = ff_get_cpu_flags_ppc();
85 if (ARCH_X86)
86 flags = ff_get_cpu_flags_x86();
87
88 checked = 1;
89 return flags;
90}
91
92void av_set_cpu_flags_mask(int mask)
93{
94 checked = 0;
95 flags = av_get_cpu_flags() & mask;
96 checked = 1;
97}
98
99int av_parse_cpu_flags(const char *s)
100{
101#define CPUFLAG_MMXEXT (AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT | AV_CPU_FLAG_CMOV)
102#define CPUFLAG_3DNOW (AV_CPU_FLAG_3DNOW | AV_CPU_FLAG_MMX)
103#define CPUFLAG_3DNOWEXT (AV_CPU_FLAG_3DNOWEXT | CPUFLAG_3DNOW)
104#define CPUFLAG_SSE (AV_CPU_FLAG_SSE | CPUFLAG_MMXEXT)
105#define CPUFLAG_SSE2 (AV_CPU_FLAG_SSE2 | CPUFLAG_SSE)
106#define CPUFLAG_SSE2SLOW (AV_CPU_FLAG_SSE2SLOW | CPUFLAG_SSE2)
107#define CPUFLAG_SSE3 (AV_CPU_FLAG_SSE3 | CPUFLAG_SSE2)
108#define CPUFLAG_SSE3SLOW (AV_CPU_FLAG_SSE3SLOW | CPUFLAG_SSE3)
109#define CPUFLAG_SSSE3 (AV_CPU_FLAG_SSSE3 | CPUFLAG_SSE3)
110#define CPUFLAG_SSE4 (AV_CPU_FLAG_SSE4 | CPUFLAG_SSSE3)
111#define CPUFLAG_SSE42 (AV_CPU_FLAG_SSE42 | CPUFLAG_SSE4)
112#define CPUFLAG_AVX (AV_CPU_FLAG_AVX | CPUFLAG_SSE42)
113#define CPUFLAG_XOP (AV_CPU_FLAG_XOP | CPUFLAG_AVX)
114#define CPUFLAG_FMA3 (AV_CPU_FLAG_FMA3 | CPUFLAG_AVX)
115#define CPUFLAG_FMA4 (AV_CPU_FLAG_FMA4 | CPUFLAG_AVX)
116#define CPUFLAG_AVX2 (AV_CPU_FLAG_AVX2 | CPUFLAG_AVX)
117#define CPUFLAG_BMI1 (AV_CPU_FLAG_BMI1)
118#define CPUFLAG_BMI2 (AV_CPU_FLAG_BMI2 | CPUFLAG_BMI1)
119 static const AVOption cpuflags_opts[] = {
120 { "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
121#if ARCH_PPC
122 { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
123#elif ARCH_X86
124 { "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
125 { "mmxext" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_MMXEXT }, .unit = "flags" },
126 { "sse" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE }, .unit = "flags" },
127 { "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2 }, .unit = "flags" },
128 { "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE2SLOW }, .unit = "flags" },
129 { "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3 }, .unit = "flags" },
130 { "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE3SLOW }, .unit = "flags" },
131 { "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSSE3 }, .unit = "flags" },
132 { "atom" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM }, .unit = "flags" },
133 { "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE4 }, .unit = "flags" },
134 { "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_SSE42 }, .unit = "flags" },
135 { "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX }, .unit = "flags" },
136 { "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_XOP }, .unit = "flags" },
137 { "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA3 }, .unit = "flags" },
138 { "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_FMA4 }, .unit = "flags" },
139 { "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_AVX2 }, .unit = "flags" },
140 { "bmi1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI1 }, .unit = "flags" },
141 { "bmi2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_BMI2 }, .unit = "flags" },
142 { "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOW }, .unit = "flags" },
143 { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPUFLAG_3DNOWEXT }, .unit = "flags" },
144 { "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
145#elif ARCH_ARM
146 { "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
147 { "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
148 { "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
149 { "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
150 { "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
151 { "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
152#elif ARCH_AARCH64
153 { "armv8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8 }, .unit = "flags" },
154 { "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
155 { "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
156#endif
157 { NULL },
158 };
159 static const AVClass class = {
160 .class_name = "cpuflags",
161 .item_name = av_default_item_name,
162 .option = cpuflags_opts,
163 .version = LIBAVUTIL_VERSION_INT,
164 };
165
166 int flags = 0, ret;
167 const AVClass *pclass = &class;
168
169 if ((ret = av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, &flags)) < 0)
170 return ret;
171
172 return flags & INT_MAX;
173}
174
175int av_parse_cpu_caps(unsigned *flags, const char *s)
176{
177 static const AVOption cpuflags_opts[] = {
178 { "flags" , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
179#if ARCH_PPC
180 { "altivec" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ALTIVEC }, .unit = "flags" },
181#elif ARCH_X86
182 { "mmx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
183 { "mmx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2 }, .unit = "flags" },
184 { "mmxext" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX2 }, .unit = "flags" },
185 { "sse" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE }, .unit = "flags" },
186 { "sse2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2 }, .unit = "flags" },
187 { "sse2slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE2SLOW }, .unit = "flags" },
188 { "sse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3 }, .unit = "flags" },
189 { "sse3slow", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE3SLOW }, .unit = "flags" },
190 { "ssse3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSSE3 }, .unit = "flags" },
191 { "atom" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ATOM }, .unit = "flags" },
192 { "sse4.1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE4 }, .unit = "flags" },
193 { "sse4.2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SSE42 }, .unit = "flags" },
194 { "avx" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX }, .unit = "flags" },
195 { "xop" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_XOP }, .unit = "flags" },
196 { "fma3" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA3 }, .unit = "flags" },
197 { "fma4" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_FMA4 }, .unit = "flags" },
198 { "avx2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_AVX2 }, .unit = "flags" },
199 { "bmi1" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI1 }, .unit = "flags" },
200 { "bmi2" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_BMI2 }, .unit = "flags" },
201 { "3dnow" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOW }, .unit = "flags" },
202 { "3dnowext", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_3DNOWEXT }, .unit = "flags" },
203 { "cmov", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_CMOV }, .unit = "flags" },
204
205#define CPU_FLAG_P2 AV_CPU_FLAG_CMOV | AV_CPU_FLAG_MMX
206#define CPU_FLAG_P3 CPU_FLAG_P2 | AV_CPU_FLAG_MMX2 | AV_CPU_FLAG_SSE
207#define CPU_FLAG_P4 CPU_FLAG_P3| AV_CPU_FLAG_SSE2
208 { "pentium2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P2 }, .unit = "flags" },
209 { "pentium3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P3 }, .unit = "flags" },
210 { "pentium4", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_P4 }, .unit = "flags" },
211
212#define CPU_FLAG_K62 AV_CPU_FLAG_MMX | AV_CPU_FLAG_3DNOW
213#define CPU_FLAG_ATHLON CPU_FLAG_K62 | AV_CPU_FLAG_CMOV | AV_CPU_FLAG_3DNOWEXT | AV_CPU_FLAG_MMX2
214#define CPU_FLAG_ATHLONXP CPU_FLAG_ATHLON | AV_CPU_FLAG_SSE
215#define CPU_FLAG_K8 CPU_FLAG_ATHLONXP | AV_CPU_FLAG_SSE2
216 { "k6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_MMX }, .unit = "flags" },
217 { "k62", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K62 }, .unit = "flags" },
218 { "athlon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLON }, .unit = "flags" },
219 { "athlonxp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_ATHLONXP }, .unit = "flags" },
220 { "k8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = CPU_FLAG_K8 }, .unit = "flags" },
221#elif ARCH_ARM
222 { "armv5te", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV5TE }, .unit = "flags" },
223 { "armv6", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6 }, .unit = "flags" },
224 { "armv6t2", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV6T2 }, .unit = "flags" },
225 { "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
226 { "vfpv3", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFPV3 }, .unit = "flags" },
227 { "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
228 { "setend", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_SETEND }, .unit = "flags" },
229#elif ARCH_AARCH64
230 { "armv8", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_ARMV8 }, .unit = "flags" },
231 { "neon", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_NEON }, .unit = "flags" },
232 { "vfp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AV_CPU_FLAG_VFP }, .unit = "flags" },
233#endif
234 { NULL },
235 };
236 static const AVClass class = {
237 .class_name = "cpuflags",
238 .item_name = av_default_item_name,
239 .option = cpuflags_opts,
240 .version = LIBAVUTIL_VERSION_INT,
241 };
242 const AVClass *pclass = &class;
243
244 return av_opt_eval_flags(&pclass, &cpuflags_opts[0], s, flags);
245}
246
247int av_cpu_count(void)
248{
249 static volatile int printed;
250
251 int nb_cpus = 1;
252#if HAVE_SCHED_GETAFFINITY && defined(CPU_COUNT)
253 cpu_set_t cpuset;
254
255 CPU_ZERO(&cpuset);
256
257 if (!sched_getaffinity(0, sizeof(cpuset), &cpuset))
258 nb_cpus = CPU_COUNT(&cpuset);
259#elif HAVE_GETPROCESSAFFINITYMASK
260 DWORD_PTR proc_aff, sys_aff;
261 if (GetProcessAffinityMask(GetCurrentProcess(), &proc_aff, &sys_aff))
262 nb_cpus = av_popcount64(proc_aff);
263#elif HAVE_SYSCTL && defined(HW_NCPU)
264 int mib[2] = { CTL_HW, HW_NCPU };
265 size_t len = sizeof(nb_cpus);
266
267 if (sysctl(mib, 2, &nb_cpus, &len, NULL, 0) == -1)
268 nb_cpus = 0;
269#elif HAVE_SYSCONF && defined(_SC_NPROC_ONLN)
270 nb_cpus = sysconf(_SC_NPROC_ONLN);
271#elif HAVE_SYSCONF && defined(_SC_NPROCESSORS_ONLN)
272 nb_cpus = sysconf(_SC_NPROCESSORS_ONLN);
273#endif
274
275 if (!printed) {
276 av_log(NULL, AV_LOG_DEBUG, "detected %d logical cores\n", nb_cpus);
277 printed = 1;
278 }
279
280 return nb_cpus;
281}
282
283#ifdef TEST
284
285#include <stdio.h>
286#include "avstring.h"
287
288#if !HAVE_GETOPT
289#include "compat/getopt.c"
290#endif
291
292static const struct {
293 int flag;
294 const char *name;
295} cpu_flag_tab[] = {
296#if ARCH_AARCH64
297 { AV_CPU_FLAG_ARMV8, "armv8" },
298 { AV_CPU_FLAG_NEON, "neon" },
299 { AV_CPU_FLAG_VFP, "vfp" },
300#elif ARCH_ARM
301 { AV_CPU_FLAG_ARMV5TE, "armv5te" },
302 { AV_CPU_FLAG_ARMV6, "armv6" },
303 { AV_CPU_FLAG_ARMV6T2, "armv6t2" },
304 { AV_CPU_FLAG_VFP, "vfp" },
305 { AV_CPU_FLAG_VFPV3, "vfpv3" },
306 { AV_CPU_FLAG_NEON, "neon" },
307 { AV_CPU_FLAG_SETEND, "setend" },
308#elif ARCH_PPC
309 { AV_CPU_FLAG_ALTIVEC, "altivec" },
310#elif ARCH_X86
311 { AV_CPU_FLAG_MMX, "mmx" },
312 { AV_CPU_FLAG_MMXEXT, "mmxext" },
313 { AV_CPU_FLAG_SSE, "sse" },
314 { AV_CPU_FLAG_SSE2, "sse2" },
315 { AV_CPU_FLAG_SSE2SLOW, "sse2slow" },
316 { AV_CPU_FLAG_SSE3, "sse3" },
317 { AV_CPU_FLAG_SSE3SLOW, "sse3slow" },
318 { AV_CPU_FLAG_SSSE3, "ssse3" },
319 { AV_CPU_FLAG_ATOM, "atom" },
320 { AV_CPU_FLAG_SSE4, "sse4.1" },
321 { AV_CPU_FLAG_SSE42, "sse4.2" },
322 { AV_CPU_FLAG_AVX, "avx" },
323 { AV_CPU_FLAG_XOP, "xop" },
324 { AV_CPU_FLAG_FMA3, "fma3" },
325 { AV_CPU_FLAG_FMA4, "fma4" },
326 { AV_CPU_FLAG_3DNOW, "3dnow" },
327 { AV_CPU_FLAG_3DNOWEXT, "3dnowext" },
328 { AV_CPU_FLAG_CMOV, "cmov" },
329 { AV_CPU_FLAG_AVX2, "avx2" },
330 { AV_CPU_FLAG_BMI1, "bmi1" },
331 { AV_CPU_FLAG_BMI2, "bmi2" },
332#endif
333 { 0 }
334};
335
336static void print_cpu_flags(int cpu_flags, const char *type)
337{
338 int i;
339
340 printf("cpu_flags(%s) = 0x%08X\n", type, cpu_flags);
341 printf("cpu_flags_str(%s) =", type);
342 for (i = 0; cpu_flag_tab[i].flag; i++)
343 if (cpu_flags & cpu_flag_tab[i].flag)
344 printf(" %s", cpu_flag_tab[i].name);
345 printf("\n");
346}
347
348
349int main(int argc, char **argv)
350{
351 int cpu_flags_raw = av_get_cpu_flags();
352 int cpu_flags_eff;
353 int cpu_count = av_cpu_count();
354 char threads[5] = "auto";
355 int i;
356
357 for(i = 0; cpu_flag_tab[i].flag; i++) {
358 unsigned tmp = 0;
359 if (av_parse_cpu_caps(&tmp, cpu_flag_tab[i].name) < 0) {
360 fprintf(stderr, "Table missing %s\n", cpu_flag_tab[i].name);
361 return 4;
362 }
363 }
364
365 if (cpu_flags_raw < 0)
366 return 1;
367
368 for (;;) {
369 int c = getopt(argc, argv, "c:t:");
370 if (c == -1)
371 break;
372 switch (c) {
373 case 'c':
374 {
375 unsigned flags = av_get_cpu_flags();
376 if (av_parse_cpu_caps(&flags, optarg) < 0)
377 return 2;
378
379 av_force_cpu_flags(flags);
380 break;
381 }
382 case 't':
383 {
384 int len = av_strlcpy(threads, optarg, sizeof(threads));
385 if (len >= sizeof(threads)) {
386 fprintf(stderr, "Invalid thread count '%s'\n", optarg);
387 return 2;
388 }
389 }
390 }
391 }
392
393 cpu_flags_eff = av_get_cpu_flags();
394
395 if (cpu_flags_eff < 0)
396 return 3;
397
398 print_cpu_flags(cpu_flags_raw, "raw");
399 print_cpu_flags(cpu_flags_eff, "effective");
400 printf("threads = %s (cpu_count = %d)\n", threads, cpu_count);
401
402 return 0;
403}
404
405#endif
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