Revision f6c7375a
cmdutils.c | ||
---|---|---|
35 | 35 |
#include "libswscale/swscale.h" |
36 | 36 |
#include "libpostproc/postprocess.h" |
37 | 37 |
#include "libavutil/avstring.h" |
38 |
#include "libavutil/parseutils.h" |
|
38 | 39 |
#include "libavutil/pixdesc.h" |
39 | 40 |
#include "libavutil/eval.h" |
40 | 41 |
#include "libavcodec/opt.h" |
... | ... | |
113 | 114 |
|
114 | 115 |
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration) |
115 | 116 |
{ |
116 |
int64_t us = parse_date(timestr, is_duration);
|
|
117 |
if (us == INT64_MIN) {
|
|
117 |
int64_t us; |
|
118 |
if (av_parse_time(&us, timestr, is_duration) < 0) {
|
|
118 | 119 |
fprintf(stderr, "Invalid %s specification for %s: %s\n", |
119 | 120 |
is_duration ? "duration" : "date", context, timestr); |
120 | 121 |
exit(1); |
libavformat/avformat.h | ||
---|---|---|
1478 | 1478 |
const char *arg); |
1479 | 1479 |
#endif |
1480 | 1480 |
|
1481 |
#if FF_API_PARSE_DATE |
|
1481 | 1482 |
/** |
1482 | 1483 |
* Parse datestr and return a corresponding number of microseconds. |
1484 |
* |
|
1483 | 1485 |
* @param datestr String representing a date or a duration. |
1484 |
* - If a date the syntax is: |
|
1485 |
* @code |
|
1486 |
* now|{[{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z|z]} |
|
1487 |
* @endcode |
|
1488 |
* If the value is "now" it takes the current time. |
|
1489 |
* Time is local time unless Z is appended, in which case it is |
|
1490 |
* interpreted as UTC. |
|
1491 |
* If the year-month-day part is not specified it takes the current |
|
1492 |
* year-month-day. |
|
1493 |
* @return the number of microseconds since 1st of January, 1970 up to |
|
1494 |
* the time of the parsed date or INT64_MIN if datestr cannot be |
|
1495 |
* successfully parsed. |
|
1496 |
* - If a duration the syntax is: |
|
1497 |
* @code |
|
1498 |
* [-]HH[:MM[:SS[.m...]]] |
|
1499 |
* [-]S+[.m...] |
|
1500 |
* @endcode |
|
1501 |
* @return the number of microseconds contained in a time interval |
|
1502 |
* with the specified duration or INT64_MIN if datestr cannot be |
|
1503 |
* successfully parsed. |
|
1504 |
* @param duration Flag which tells how to interpret datestr, if |
|
1505 |
* not zero datestr is interpreted as a duration, otherwise as a |
|
1506 |
* date. |
|
1486 |
* See av_parse_time() for the syntax of the provided string. |
|
1487 |
* @deprecated in favor of av_parse_time() |
|
1507 | 1488 |
*/ |
1489 |
attribute_deprecated |
|
1508 | 1490 |
int64_t parse_date(const char *datestr, int duration); |
1491 |
#endif |
|
1509 | 1492 |
|
1510 | 1493 |
/** |
1511 | 1494 |
* Get the current time in microseconds. |
libavformat/cutils.c | ||
---|---|---|
42 | 42 |
*nb_ptr = nb; |
43 | 43 |
} |
44 | 44 |
|
45 |
time_t mktimegm(struct tm *tm) |
|
46 |
{ |
|
47 |
time_t t; |
|
48 |
|
|
49 |
int y = tm->tm_year + 1900, m = tm->tm_mon + 1, d = tm->tm_mday; |
|
50 |
|
|
51 |
if (m < 3) { |
|
52 |
m += 12; |
|
53 |
y--; |
|
54 |
} |
|
55 |
|
|
56 |
t = 86400 * |
|
57 |
(d + (153 * m - 457) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 719469); |
|
58 |
|
|
59 |
t += 3600 * tm->tm_hour + 60 * tm->tm_min + tm->tm_sec; |
|
60 |
|
|
61 |
return t; |
|
62 |
} |
|
63 |
|
|
64 | 45 |
#define ISLEAP(y) (((y) % 4 == 0) && (((y) % 100) != 0 || ((y) % 400) == 0)) |
65 | 46 |
#define LEAPS_COUNT(y) ((y)/4 - (y)/100 + (y)/400) |
66 | 47 |
|
... | ... | |
95 | 76 |
|
96 | 77 |
return tm; |
97 | 78 |
} |
98 |
|
|
99 |
/* get a positive number between n_min and n_max, for a maximum length |
|
100 |
of len_max. Return -1 if error. */ |
|
101 |
static int date_get_num(const char **pp, |
|
102 |
int n_min, int n_max, int len_max) |
|
103 |
{ |
|
104 |
int i, val, c; |
|
105 |
const char *p; |
|
106 |
|
|
107 |
p = *pp; |
|
108 |
val = 0; |
|
109 |
for(i = 0; i < len_max; i++) { |
|
110 |
c = *p; |
|
111 |
if (!isdigit(c)) |
|
112 |
break; |
|
113 |
val = (val * 10) + c - '0'; |
|
114 |
p++; |
|
115 |
} |
|
116 |
/* no number read ? */ |
|
117 |
if (p == *pp) |
|
118 |
return -1; |
|
119 |
if (val < n_min || val > n_max) |
|
120 |
return -1; |
|
121 |
*pp = p; |
|
122 |
return val; |
|
123 |
} |
|
124 |
|
|
125 |
/* small strptime for ffmpeg */ |
|
126 |
const char *small_strptime(const char *p, const char *fmt, |
|
127 |
struct tm *dt) |
|
128 |
{ |
|
129 |
int c, val; |
|
130 |
|
|
131 |
for(;;) { |
|
132 |
c = *fmt++; |
|
133 |
if (c == '\0') { |
|
134 |
return p; |
|
135 |
} else if (c == '%') { |
|
136 |
c = *fmt++; |
|
137 |
switch(c) { |
|
138 |
case 'H': |
|
139 |
val = date_get_num(&p, 0, 23, 2); |
|
140 |
if (val == -1) |
|
141 |
return NULL; |
|
142 |
dt->tm_hour = val; |
|
143 |
break; |
|
144 |
case 'M': |
|
145 |
val = date_get_num(&p, 0, 59, 2); |
|
146 |
if (val == -1) |
|
147 |
return NULL; |
|
148 |
dt->tm_min = val; |
|
149 |
break; |
|
150 |
case 'S': |
|
151 |
val = date_get_num(&p, 0, 59, 2); |
|
152 |
if (val == -1) |
|
153 |
return NULL; |
|
154 |
dt->tm_sec = val; |
|
155 |
break; |
|
156 |
case 'Y': |
|
157 |
val = date_get_num(&p, 0, 9999, 4); |
|
158 |
if (val == -1) |
|
159 |
return NULL; |
|
160 |
dt->tm_year = val - 1900; |
|
161 |
break; |
|
162 |
case 'm': |
|
163 |
val = date_get_num(&p, 1, 12, 2); |
|
164 |
if (val == -1) |
|
165 |
return NULL; |
|
166 |
dt->tm_mon = val - 1; |
|
167 |
break; |
|
168 |
case 'd': |
|
169 |
val = date_get_num(&p, 1, 31, 2); |
|
170 |
if (val == -1) |
|
171 |
return NULL; |
|
172 |
dt->tm_mday = val; |
|
173 |
break; |
|
174 |
case '%': |
|
175 |
goto match; |
|
176 |
default: |
|
177 |
return NULL; |
|
178 |
} |
|
179 |
} else { |
|
180 |
match: |
|
181 |
if (c != *p) |
|
182 |
return NULL; |
|
183 |
p++; |
|
184 |
} |
|
185 |
} |
|
186 |
return p; |
|
187 |
} |
|
188 |
|
libavformat/internal.h | ||
---|---|---|
48 | 48 |
} while(0) |
49 | 49 |
#endif |
50 | 50 |
|
51 |
time_t mktimegm(struct tm *tm); |
|
52 | 51 |
struct tm *brktimegm(time_t secs, struct tm *tm); |
53 |
const char *small_strptime(const char *p, const char *fmt, |
|
54 |
struct tm *dt); |
|
55 | 52 |
|
56 | 53 |
char *ff_data_to_hex(char *buf, const uint8_t *src, int size, int lowercase); |
57 | 54 |
|
libavformat/utils.c | ||
---|---|---|
3380 | 3380 |
return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US; |
3381 | 3381 |
} |
3382 | 3382 |
|
3383 |
int64_t parse_date(const char *datestr, int duration) |
|
3384 |
{ |
|
3385 |
const char *p; |
|
3386 |
int64_t t; |
|
3387 |
struct tm dt; |
|
3388 |
int i; |
|
3389 |
static const char * const date_fmt[] = { |
|
3390 |
"%Y-%m-%d", |
|
3391 |
"%Y%m%d", |
|
3392 |
}; |
|
3393 |
static const char * const time_fmt[] = { |
|
3394 |
"%H:%M:%S", |
|
3395 |
"%H%M%S", |
|
3396 |
}; |
|
3397 |
const char *q; |
|
3398 |
int is_utc, len; |
|
3399 |
char lastch; |
|
3400 |
int negative = 0; |
|
3401 |
|
|
3402 |
#undef time |
|
3403 |
time_t now = time(0); |
|
3404 |
|
|
3405 |
len = strlen(datestr); |
|
3406 |
if (len > 0) |
|
3407 |
lastch = datestr[len - 1]; |
|
3408 |
else |
|
3409 |
lastch = '\0'; |
|
3410 |
is_utc = (lastch == 'z' || lastch == 'Z'); |
|
3411 |
|
|
3412 |
memset(&dt, 0, sizeof(dt)); |
|
3413 |
|
|
3414 |
p = datestr; |
|
3415 |
q = NULL; |
|
3416 |
if (!duration) { |
|
3417 |
if (!strncasecmp(datestr, "now", len)) |
|
3418 |
return (int64_t) now * 1000000; |
|
3419 |
|
|
3420 |
/* parse the year-month-day part */ |
|
3421 |
for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) { |
|
3422 |
q = small_strptime(p, date_fmt[i], &dt); |
|
3423 |
if (q) { |
|
3424 |
break; |
|
3425 |
} |
|
3426 |
} |
|
3427 |
|
|
3428 |
/* if the year-month-day part is missing, then take the |
|
3429 |
* current year-month-day time */ |
|
3430 |
if (!q) { |
|
3431 |
if (is_utc) { |
|
3432 |
dt = *gmtime(&now); |
|
3433 |
} else { |
|
3434 |
dt = *localtime(&now); |
|
3435 |
} |
|
3436 |
dt.tm_hour = dt.tm_min = dt.tm_sec = 0; |
|
3437 |
} else { |
|
3438 |
p = q; |
|
3439 |
} |
|
3440 |
|
|
3441 |
if (*p == 'T' || *p == 't' || *p == ' ') |
|
3442 |
p++; |
|
3443 |
|
|
3444 |
/* parse the hour-minute-second part */ |
|
3445 |
for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) { |
|
3446 |
q = small_strptime(p, time_fmt[i], &dt); |
|
3447 |
if (q) { |
|
3448 |
break; |
|
3449 |
} |
|
3450 |
} |
|
3451 |
} else { |
|
3452 |
/* parse datestr as a duration */ |
|
3453 |
if (p[0] == '-') { |
|
3454 |
negative = 1; |
|
3455 |
++p; |
|
3456 |
} |
|
3457 |
/* parse datestr as HH:MM:SS */ |
|
3458 |
q = small_strptime(p, time_fmt[0], &dt); |
|
3459 |
if (!q) { |
|
3460 |
/* parse datestr as S+ */ |
|
3461 |
dt.tm_sec = strtol(p, (char **)&q, 10); |
|
3462 |
if (q == p) |
|
3463 |
/* the parsing didn't succeed */ |
|
3464 |
return INT64_MIN; |
|
3465 |
dt.tm_min = 0; |
|
3466 |
dt.tm_hour = 0; |
|
3467 |
} |
|
3468 |
} |
|
3469 |
|
|
3470 |
/* Now we have all the fields that we can get */ |
|
3471 |
if (!q) { |
|
3472 |
return INT64_MIN; |
|
3473 |
} |
|
3474 |
|
|
3475 |
if (duration) { |
|
3476 |
t = dt.tm_hour * 3600 + dt.tm_min * 60 + dt.tm_sec; |
|
3477 |
} else { |
|
3478 |
dt.tm_isdst = -1; /* unknown */ |
|
3479 |
if (is_utc) { |
|
3480 |
t = mktimegm(&dt); |
|
3481 |
} else { |
|
3482 |
t = mktime(&dt); |
|
3483 |
} |
|
3484 |
} |
|
3485 |
|
|
3486 |
t *= 1000000; |
|
3383 |
#if FF_API_PARSE_DATE |
|
3384 |
#include "libavutil/parseutils.h" |
|
3487 | 3385 |
|
3488 |
/* parse the .m... part */ |
|
3489 |
if (*q == '.') { |
|
3490 |
int val, n; |
|
3491 |
q++; |
|
3492 |
for (val = 0, n = 100000; n >= 1; n /= 10, q++) { |
|
3493 |
if (!isdigit(*q)) |
|
3494 |
break; |
|
3495 |
val += n * (*q - '0'); |
|
3496 |
} |
|
3497 |
t += val; |
|
3498 |
} |
|
3499 |
return negative ? -t : t; |
|
3386 |
int64_t parse_date(const char *timestr, int duration) |
|
3387 |
{ |
|
3388 |
int64_t timeval; |
|
3389 |
av_parse_time(&timeval, timestr, duration); |
|
3390 |
return timeval; |
|
3500 | 3391 |
} |
3392 |
#endif |
|
3501 | 3393 |
|
3502 | 3394 |
int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info) |
3503 | 3395 |
{ |
libavformat/version.h | ||
---|---|---|
95 | 95 |
#ifndef FF_API_DUMP_FORMAT |
96 | 96 |
#define FF_API_DUMP_FORMAT (LIBAVFORMAT_VERSION_MAJOR < 54) |
97 | 97 |
#endif |
98 |
#ifndef FF_API_PARSE_DATE |
|
99 |
#define FF_API_PARSE_DATE (LIBAVFORMAT_VERSION_MAJOR < 54) |
|
100 |
#endif |
|
98 | 101 |
|
99 | 102 |
#endif //AVFORMAT_VERSION_H |
libavutil/parseutils.c | ||
---|---|---|
22 | 22 |
*/ |
23 | 23 |
|
24 | 24 |
#include <strings.h> |
25 |
#include <sys/time.h> |
|
26 |
#include <time.h> |
|
25 | 27 |
#include "parseutils.h" |
26 | 28 |
#include "libavutil/avutil.h" |
27 | 29 |
#include "libavutil/eval.h" |
... | ... | |
371 | 373 |
return 0; |
372 | 374 |
} |
373 | 375 |
|
376 |
/* get a positive number between n_min and n_max, for a maximum length |
|
377 |
of len_max. Return -1 if error. */ |
|
378 |
static int date_get_num(const char **pp, |
|
379 |
int n_min, int n_max, int len_max) |
|
380 |
{ |
|
381 |
int i, val, c; |
|
382 |
const char *p; |
|
383 |
|
|
384 |
p = *pp; |
|
385 |
val = 0; |
|
386 |
for(i = 0; i < len_max; i++) { |
|
387 |
c = *p; |
|
388 |
if (!isdigit(c)) |
|
389 |
break; |
|
390 |
val = (val * 10) + c - '0'; |
|
391 |
p++; |
|
392 |
} |
|
393 |
/* no number read ? */ |
|
394 |
if (p == *pp) |
|
395 |
return -1; |
|
396 |
if (val < n_min || val > n_max) |
|
397 |
return -1; |
|
398 |
*pp = p; |
|
399 |
return val; |
|
400 |
} |
|
401 |
|
|
402 |
/* small strptime for ffmpeg */ |
|
403 |
static |
|
404 |
const char *small_strptime(const char *p, const char *fmt, |
|
405 |
struct tm *dt) |
|
406 |
{ |
|
407 |
int c, val; |
|
408 |
|
|
409 |
for(;;) { |
|
410 |
c = *fmt++; |
|
411 |
if (c == '\0') { |
|
412 |
return p; |
|
413 |
} else if (c == '%') { |
|
414 |
c = *fmt++; |
|
415 |
switch(c) { |
|
416 |
case 'H': |
|
417 |
val = date_get_num(&p, 0, 23, 2); |
|
418 |
if (val == -1) |
|
419 |
return NULL; |
|
420 |
dt->tm_hour = val; |
|
421 |
break; |
|
422 |
case 'M': |
|
423 |
val = date_get_num(&p, 0, 59, 2); |
|
424 |
if (val == -1) |
|
425 |
return NULL; |
|
426 |
dt->tm_min = val; |
|
427 |
break; |
|
428 |
case 'S': |
|
429 |
val = date_get_num(&p, 0, 59, 2); |
|
430 |
if (val == -1) |
|
431 |
return NULL; |
|
432 |
dt->tm_sec = val; |
|
433 |
break; |
|
434 |
case 'Y': |
|
435 |
val = date_get_num(&p, 0, 9999, 4); |
|
436 |
if (val == -1) |
|
437 |
return NULL; |
|
438 |
dt->tm_year = val - 1900; |
|
439 |
break; |
|
440 |
case 'm': |
|
441 |
val = date_get_num(&p, 1, 12, 2); |
|
442 |
if (val == -1) |
|
443 |
return NULL; |
|
444 |
dt->tm_mon = val - 1; |
|
445 |
break; |
|
446 |
case 'd': |
|
447 |
val = date_get_num(&p, 1, 31, 2); |
|
448 |
if (val == -1) |
|
449 |
return NULL; |
|
450 |
dt->tm_mday = val; |
|
451 |
break; |
|
452 |
case '%': |
|
453 |
goto match; |
|
454 |
default: |
|
455 |
return NULL; |
|
456 |
} |
|
457 |
} else { |
|
458 |
match: |
|
459 |
if (c != *p) |
|
460 |
return NULL; |
|
461 |
p++; |
|
462 |
} |
|
463 |
} |
|
464 |
return p; |
|
465 |
} |
|
466 |
|
|
467 |
static time_t mktimegm(struct tm *tm) |
|
468 |
{ |
|
469 |
time_t t; |
|
470 |
|
|
471 |
int y = tm->tm_year + 1900, m = tm->tm_mon + 1, d = tm->tm_mday; |
|
472 |
|
|
473 |
if (m < 3) { |
|
474 |
m += 12; |
|
475 |
y--; |
|
476 |
} |
|
477 |
|
|
478 |
t = 86400 * |
|
479 |
(d + (153 * m - 457) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 719469); |
|
480 |
|
|
481 |
t += 3600 * tm->tm_hour + 60 * tm->tm_min + tm->tm_sec; |
|
482 |
|
|
483 |
return t; |
|
484 |
} |
|
485 |
|
|
486 |
int av_parse_time(int64_t *timeval, const char *datestr, int duration) |
|
487 |
{ |
|
488 |
const char *p; |
|
489 |
int64_t t; |
|
490 |
struct tm dt; |
|
491 |
int i; |
|
492 |
static const char * const date_fmt[] = { |
|
493 |
"%Y-%m-%d", |
|
494 |
"%Y%m%d", |
|
495 |
}; |
|
496 |
static const char * const time_fmt[] = { |
|
497 |
"%H:%M:%S", |
|
498 |
"%H%M%S", |
|
499 |
}; |
|
500 |
const char *q; |
|
501 |
int is_utc, len; |
|
502 |
char lastch; |
|
503 |
int negative = 0; |
|
504 |
|
|
505 |
#undef time |
|
506 |
time_t now = time(0); |
|
507 |
|
|
508 |
len = strlen(datestr); |
|
509 |
if (len > 0) |
|
510 |
lastch = datestr[len - 1]; |
|
511 |
else |
|
512 |
lastch = '\0'; |
|
513 |
is_utc = (lastch == 'z' || lastch == 'Z'); |
|
514 |
|
|
515 |
memset(&dt, 0, sizeof(dt)); |
|
516 |
|
|
517 |
p = datestr; |
|
518 |
q = NULL; |
|
519 |
if (!duration) { |
|
520 |
if (!strncasecmp(datestr, "now", len)) { |
|
521 |
*timeval = (int64_t) now * 1000000; |
|
522 |
return 0; |
|
523 |
} |
|
524 |
|
|
525 |
/* parse the year-month-day part */ |
|
526 |
for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) { |
|
527 |
q = small_strptime(p, date_fmt[i], &dt); |
|
528 |
if (q) { |
|
529 |
break; |
|
530 |
} |
|
531 |
} |
|
532 |
|
|
533 |
/* if the year-month-day part is missing, then take the |
|
534 |
* current year-month-day time */ |
|
535 |
if (!q) { |
|
536 |
if (is_utc) { |
|
537 |
dt = *gmtime(&now); |
|
538 |
} else { |
|
539 |
dt = *localtime(&now); |
|
540 |
} |
|
541 |
dt.tm_hour = dt.tm_min = dt.tm_sec = 0; |
|
542 |
} else { |
|
543 |
p = q; |
|
544 |
} |
|
545 |
|
|
546 |
if (*p == 'T' || *p == 't' || *p == ' ') |
|
547 |
p++; |
|
548 |
|
|
549 |
/* parse the hour-minute-second part */ |
|
550 |
for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) { |
|
551 |
q = small_strptime(p, time_fmt[i], &dt); |
|
552 |
if (q) { |
|
553 |
break; |
|
554 |
} |
|
555 |
} |
|
556 |
} else { |
|
557 |
/* parse datestr as a duration */ |
|
558 |
if (p[0] == '-') { |
|
559 |
negative = 1; |
|
560 |
++p; |
|
561 |
} |
|
562 |
/* parse datestr as HH:MM:SS */ |
|
563 |
q = small_strptime(p, time_fmt[0], &dt); |
|
564 |
if (!q) { |
|
565 |
/* parse datestr as S+ */ |
|
566 |
dt.tm_sec = strtol(p, (char **)&q, 10); |
|
567 |
if (q == p) { |
|
568 |
/* the parsing didn't succeed */ |
|
569 |
*timeval = INT64_MIN; |
|
570 |
return AVERROR(EINVAL); |
|
571 |
} |
|
572 |
dt.tm_min = 0; |
|
573 |
dt.tm_hour = 0; |
|
574 |
} |
|
575 |
} |
|
576 |
|
|
577 |
/* Now we have all the fields that we can get */ |
|
578 |
if (!q) { |
|
579 |
*timeval = INT64_MIN; |
|
580 |
return AVERROR(EINVAL); |
|
581 |
} |
|
582 |
|
|
583 |
if (duration) { |
|
584 |
t = dt.tm_hour * 3600 + dt.tm_min * 60 + dt.tm_sec; |
|
585 |
} else { |
|
586 |
dt.tm_isdst = -1; /* unknown */ |
|
587 |
if (is_utc) { |
|
588 |
t = mktimegm(&dt); |
|
589 |
} else { |
|
590 |
t = mktime(&dt); |
|
591 |
} |
|
592 |
} |
|
593 |
|
|
594 |
t *= 1000000; |
|
595 |
|
|
596 |
/* parse the .m... part */ |
|
597 |
if (*q == '.') { |
|
598 |
int val, n; |
|
599 |
q++; |
|
600 |
for (val = 0, n = 100000; n >= 1; n /= 10, q++) { |
|
601 |
if (!isdigit(*q)) |
|
602 |
break; |
|
603 |
val += n * (*q - '0'); |
|
604 |
} |
|
605 |
t += val; |
|
606 |
} |
|
607 |
*timeval = negative ? -t : t; |
|
608 |
return 0; |
|
609 |
} |
|
610 |
|
|
374 | 611 |
#ifdef TEST |
375 | 612 |
|
376 | 613 |
#undef printf |
libavutil/parseutils.h | ||
---|---|---|
72 | 72 |
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, |
73 | 73 |
void *log_ctx); |
74 | 74 |
|
75 |
/** |
|
76 |
* Parses timestr and returns in *time a corresponding number of |
|
77 |
* microseconds. |
|
78 |
* |
|
79 |
* @param timeval puts here the number of microseconds corresponding |
|
80 |
* to the string in timestr. If the string represents a duration, it |
|
81 |
* is the number of microseconds contained in the time interval. If |
|
82 |
* the string is a date, is the number of microseconds since 1st of |
|
83 |
* January, 1970 up to the time of the parsed date. If timestr cannot |
|
84 |
* be successfully parsed, set *time to INT64_MIN. |
|
85 |
|
|
86 |
* @param datestr a string representing a date or a duration. |
|
87 |
* - If a date the syntax is: |
|
88 |
* @code |
|
89 |
* [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z] |
|
90 |
* now |
|
91 |
* @endcode |
|
92 |
* If the value is "now" it takes the current time. |
|
93 |
* Time is local time unless Z is appended, in which case it is |
|
94 |
* interpreted as UTC. |
|
95 |
* If the year-month-day part is not specified it takes the current |
|
96 |
* year-month-day. |
|
97 |
* - If a duration the syntax is: |
|
98 |
* @code |
|
99 |
* [-]HH[:MM[:SS[.m...]]] |
|
100 |
* [-]S+[.m...] |
|
101 |
* @endcode |
|
102 |
* @param duration flag which tells how to interpret timestr, if not |
|
103 |
* zero timestr is interpreted as a duration, otherwise as a date |
|
104 |
* @return 0 in case of success, a negative value corresponding to an |
|
105 |
* AVERROR code otherwise |
|
106 |
*/ |
|
107 |
int av_parse_time(int64_t *timeval, const char *timestr, int duration); |
|
108 |
|
|
75 | 109 |
#endif /* AVUTIL_PARSEUTILS_H */ |
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