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Diffstat (limited to 'lib/ffmpeg/libavutil/parseutils.c')
-rw-r--r--lib/ffmpeg/libavutil/parseutils.c295
1 files changed, 204 insertions, 91 deletions
diff --git a/lib/ffmpeg/libavutil/parseutils.c b/lib/ffmpeg/libavutil/parseutils.c
index 2649e3b2bc..f2f8f18437 100644
--- a/lib/ffmpeg/libavutil/parseutils.c
+++ b/lib/ffmpeg/libavutil/parseutils.c
@@ -21,16 +21,46 @@
* misc parsing utilities
*/
-#include <sys/time.h>
#include <time.h>
#include "avstring.h"
#include "avutil.h"
+#include "common.h"
#include "eval.h"
#include "log.h"
#include "random_seed.h"
#include "parseutils.h"
+#ifdef TEST
+
+#define av_get_random_seed av_get_random_seed_deterministic
+static uint32_t av_get_random_seed_deterministic(void);
+
+#define time(t) 1331972053
+
+#endif
+
+int av_parse_ratio(AVRational *q, const char *str, int max,
+ int log_offset, void *log_ctx)
+{
+ char c;
+ int ret;
+
+ if (sscanf(str, "%d:%d%c", &q->num, &q->den, &c) != 2) {
+ double d;
+ ret = av_expr_parse_and_eval(&d, str, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, log_offset, log_ctx);
+ if (ret < 0)
+ return ret;
+ *q = av_d2q(d, max);
+ } else {
+ av_reduce(&q->num, &q->den, q->num, q->den, max);
+ }
+
+ return 0;
+}
+
typedef struct {
const char *abbr;
int width, height;
@@ -79,6 +109,12 @@ static const VideoSizeAbbr video_size_abbrs[] = {
{ "hd480", 852, 480 },
{ "hd720", 1280, 720 },
{ "hd1080", 1920,1080 },
+ { "2k", 2048,1080 }, /* Digital Cinema System Specification */
+ { "2kflat", 1998,1080 },
+ { "2kscope", 2048, 858 },
+ { "4k", 4096,2160 }, /* Digital Cinema System Specification */
+ { "4kflat", 3996,2160 },
+ { "4kscope", 4096,1716 },
};
static const VideoRateAbbr video_rate_abbrs[]= {
@@ -107,11 +143,14 @@ int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
}
}
if (i == n) {
- p = str;
- width = strtol(p, (void*)&p, 10);
+ width = strtol(str, (void*)&p, 10);
if (*p)
p++;
height = strtol(p, (void*)&p, 10);
+
+ /* trailing extraneous data detected, like in 123x345foobar */
+ if (*p)
+ return AVERROR(EINVAL);
}
if (width <= 0 || height <= 0)
return AVERROR(EINVAL);
@@ -124,7 +163,6 @@ int av_parse_video_rate(AVRational *rate, const char *arg)
{
int i, ret;
int n = FF_ARRAY_ELEMS(video_rate_abbrs);
- double res;
/* First, we check our abbreviation table */
for (i = 0; i < n; ++i)
@@ -134,10 +172,8 @@ int av_parse_video_rate(AVRational *rate, const char *arg)
}
/* Then, we try to parse it as fraction */
- if ((ret = av_expr_parse_and_eval(&res, arg, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, 0, NULL)) < 0)
+ if ((ret = av_parse_ratio_quiet(rate, arg, 1001000)) < 0)
return ret;
- *rate = av_d2q(res, 1001000);
if (rate->num <= 0 || rate->den <= 0)
return AVERROR(EINVAL);
return 0;
@@ -216,8 +252,8 @@ static const ColorEntry color_table[] = {
{ "LightCoral", { 0xF0, 0x80, 0x80 } },
{ "LightCyan", { 0xE0, 0xFF, 0xFF } },
{ "LightGoldenRodYellow", { 0xFA, 0xFA, 0xD2 } },
- { "LightGrey", { 0xD3, 0xD3, 0xD3 } },
{ "LightGreen", { 0x90, 0xEE, 0x90 } },
+ { "LightGrey", { 0xD3, 0xD3, 0xD3 } },
{ "LightPink", { 0xFF, 0xB6, 0xC1 } },
{ "LightSalmon", { 0xFF, 0xA0, 0x7A } },
{ "LightSeaGreen", { 0x20, 0xB2, 0xAA } },
@@ -355,15 +391,19 @@ int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
}
if (tail) {
- unsigned long int alpha;
+ double alpha;
const char *alpha_string = tail;
if (!strncmp(alpha_string, "0x", 2)) {
alpha = strtoul(alpha_string, &tail, 16);
} else {
- alpha = 255 * strtod(alpha_string, &tail);
+ double norm_alpha = strtod(alpha_string, &tail);
+ if (norm_alpha < 0.0 || norm_alpha > 1.0)
+ alpha = 256;
+ else
+ alpha = 255 * norm_alpha;
}
- if (tail == alpha_string || *tail || alpha > 255) {
+ if (tail == alpha_string || *tail || alpha > 255 || alpha < 0) {
av_log(log_ctx, AV_LOG_ERROR, "Invalid alpha value specifier '%s' in '%s'\n",
alpha_string, color_string);
return AVERROR(EINVAL);
@@ -386,7 +426,7 @@ static int date_get_num(const char **pp,
val = 0;
for(i = 0; i < len_max; i++) {
c = *p;
- if (!isdigit(c))
+ if (!av_isdigit(c))
break;
val = (val * 10) + c - '0';
p++;
@@ -400,29 +440,26 @@ static int date_get_num(const char **pp,
return val;
}
-/**
- * Parse the input string p according to the format string fmt and
- * store its results in the structure dt.
- * This implementation supports only a subset of the formats supported
- * by the standard strptime().
- *
- * @return a pointer to the first character not processed in this
- * function call, or NULL in case the function fails to match all of
- * the fmt string and therefore an error occurred
- */
-static const char *small_strptime(const char *p, const char *fmt, struct tm *dt)
+char *av_small_strptime(const char *p, const char *fmt, struct tm *dt)
{
int c, val;
for(;;) {
+ /* consume time string until a non whitespace char is found */
+ while (av_isspace(*fmt)) {
+ while (av_isspace(*p))
+ p++;
+ fmt++;
+ }
c = *fmt++;
if (c == '\0') {
- return p;
+ return (char *)p;
} else if (c == '%') {
c = *fmt++;
switch(c) {
case 'H':
- val = date_get_num(&p, 0, 23, 2);
+ case 'J':
+ val = date_get_num(&p, 0, c == 'H' ? 23 : INT_MAX, 2);
if (val == -1)
return NULL;
dt->tm_hour = val;
@@ -482,7 +519,7 @@ time_t av_timegm(struct tm *tm)
y--;
}
- t = 86400 *
+ t = 86400LL *
(d + (153 * m - 457) / 5 + 365 * y + y / 4 - y / 100 + y / 400 - 719469);
t += 3600 * tm->tm_hour + 60 * tm->tm_min + tm->tm_sec;
@@ -492,9 +529,11 @@ time_t av_timegm(struct tm *tm)
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
{
- const char *p;
+ const char *p, *q;
int64_t t;
- struct tm dt;
+ time_t now;
+ struct tm dt = { 0 };
+ int today = 0, negative = 0, microseconds = 0;
int i;
static const char * const date_fmt[] = {
"%Y-%m-%d",
@@ -504,61 +543,41 @@ int av_parse_time(int64_t *timeval, const char *timestr, int duration)
"%H:%M:%S",
"%H%M%S",
};
- const char *q;
- int is_utc, len;
- char lastch;
- int negative = 0;
-
-#undef time
- time_t now = time(0);
-
- len = strlen(timestr);
- if (len > 0)
- lastch = timestr[len - 1];
- else
- lastch = '\0';
- is_utc = (lastch == 'z' || lastch == 'Z');
-
- memset(&dt, 0, sizeof(dt));
p = timestr;
q = NULL;
+ *timeval = INT64_MIN;
if (!duration) {
- if (!av_strncasecmp(timestr, "now", len)) {
+ now = time(0);
+
+ if (!av_strcasecmp(timestr, "now")) {
*timeval = (int64_t) now * 1000000;
return 0;
}
/* parse the year-month-day part */
for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) {
- q = small_strptime(p, date_fmt[i], &dt);
- if (q) {
+ q = av_small_strptime(p, date_fmt[i], &dt);
+ if (q)
break;
- }
}
/* if the year-month-day part is missing, then take the
* current year-month-day time */
if (!q) {
- if (is_utc) {
- dt = *gmtime(&now);
- } else {
- dt = *localtime(&now);
- }
- dt.tm_hour = dt.tm_min = dt.tm_sec = 0;
- } else {
- p = q;
+ today = 1;
+ q = p;
}
+ p = q;
if (*p == 'T' || *p == 't' || *p == ' ')
p++;
/* parse the hour-minute-second part */
for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) {
- q = small_strptime(p, time_fmt[i], &dt);
- if (q) {
+ q = av_small_strptime(p, time_fmt[i], &dt);
+ if (q)
break;
- }
}
} else {
/* parse timestr as a duration */
@@ -567,50 +586,60 @@ int av_parse_time(int64_t *timeval, const char *timestr, int duration)
++p;
}
/* parse timestr as HH:MM:SS */
- q = small_strptime(p, time_fmt[0], &dt);
+ q = av_small_strptime(p, "%J:%M:%S", &dt);
+ if (!q) {
+ /* parse timestr as MM:SS */
+ q = av_small_strptime(p, "%M:%S", &dt);
+ dt.tm_hour = 0;
+ }
if (!q) {
/* parse timestr as S+ */
dt.tm_sec = strtol(p, (void *)&q, 10);
- if (q == p) {
- /* the parsing didn't succeed */
- *timeval = INT64_MIN;
+ if (q == p) /* the parsing didn't succeed */
return AVERROR(EINVAL);
- }
dt.tm_min = 0;
dt.tm_hour = 0;
}
}
/* Now we have all the fields that we can get */
- if (!q) {
- *timeval = INT64_MIN;
+ if (!q)
return AVERROR(EINVAL);
+
+ /* parse the .m... part */
+ if (*q == '.') {
+ int n;
+ q++;
+ for (n = 100000; n >= 1; n /= 10, q++) {
+ if (!av_isdigit(*q))
+ break;
+ microseconds += n * (*q - '0');
+ }
+ while (av_isdigit(*q))
+ q++;
}
if (duration) {
t = dt.tm_hour * 3600 + dt.tm_min * 60 + dt.tm_sec;
} else {
- dt.tm_isdst = -1; /* unknown */
- if (is_utc) {
- t = av_timegm(&dt);
- } else {
- t = mktime(&dt);
+ int is_utc = *q == 'Z' || *q == 'z';
+ q += is_utc;
+ if (today) { /* fill in today's date */
+ struct tm dt2 = is_utc ? *gmtime(&now) : *localtime(&now);
+ dt2.tm_hour = dt.tm_hour;
+ dt2.tm_min = dt.tm_min;
+ dt2.tm_sec = dt.tm_sec;
+ dt = dt2;
}
+ t = is_utc ? av_timegm(&dt) : mktime(&dt);
}
- t *= 1000000;
+ /* Check that we are at the end of the string */
+ if (*q)
+ return AVERROR(EINVAL);
- /* parse the .m... part */
- if (*q == '.') {
- int val, n;
- q++;
- for (val = 0, n = 100000; n >= 1; n /= 10, q++) {
- if (!isdigit(*q))
- break;
- val += n * (*q - '0');
- }
- t += val;
- }
+ t *= 1000000;
+ t += microseconds;
*timeval = negative ? -t : t;
return 0;
}
@@ -656,14 +685,19 @@ int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info
#ifdef TEST
-#undef printf
+static uint32_t randomv = MKTAG('L','A','V','U');
+
+static uint32_t av_get_random_seed_deterministic(void)
+{
+ return randomv = randomv * 1664525 + 1013904223;
+}
int main(void)
{
printf("Testing av_parse_video_rate()\n");
{
int i;
- const char *rates[] = {
+ static const char *const rates[] = {
"-inf",
"inf",
"nan",
@@ -693,10 +727,10 @@ int main(void)
for (i = 0; i < FF_ARRAY_ELEMS(rates); i++) {
int ret;
- AVRational q = (AVRational){0, 0};
- ret = av_parse_video_rate(&q, rates[i]),
- printf("'%s' -> %d/%d ret:%d\n",
- rates[i], q.num, q.den, ret);
+ AVRational q = { 0, 0 };
+ ret = av_parse_video_rate(&q, rates[i]);
+ printf("'%s' -> %d/%d %s\n",
+ rates[i], q.num, q.den, ret ? "ERROR" : "OK");
}
}
@@ -704,7 +738,7 @@ int main(void)
{
int i;
uint8_t rgba[4];
- const char *color_names[] = {
+ static const char *const color_names[] = {
"bikeshed",
"RaNdOm",
"foo",
@@ -747,7 +781,86 @@ int main(void)
for (i = 0; i < FF_ARRAY_ELEMS(color_names); i++) {
if (av_parse_color(rgba, color_names[i], -1, NULL) >= 0)
- printf("%s -> R(%d) G(%d) B(%d) A(%d)\n", color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
+ printf("%s -> R(%d) G(%d) B(%d) A(%d)\n",
+ color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
+ else
+ printf("%s -> error\n", color_names[i]);
+ }
+ }
+
+ printf("\nTesting av_small_strptime()\n");
+ {
+ int i;
+ struct tm tm = { 0 };
+ struct fmt_timespec_entry {
+ const char *fmt, *timespec;
+ } fmt_timespec_entries[] = {
+ { "%Y-%m-%d", "2012-12-21" },
+ { "%Y - %m - %d", "2012-12-21" },
+ { "%Y-%m-%d %H:%M:%S", "2012-12-21 20:12:21" },
+ { " %Y - %m - %d %H : %M : %S", " 2012 - 12 - 21 20 : 12 : 21" },
+ };
+
+ av_log_set_level(AV_LOG_DEBUG);
+ for (i = 0; i < FF_ARRAY_ELEMS(fmt_timespec_entries); i++) {
+ char *p;
+ struct fmt_timespec_entry *e = &fmt_timespec_entries[i];
+ printf("fmt:'%s' spec:'%s' -> ", e->fmt, e->timespec);
+ p = av_small_strptime(e->timespec, e->fmt, &tm);
+ if (p) {
+ printf("%04d-%02d-%2d %02d:%02d:%02d\n",
+ 1900+tm.tm_year, tm.tm_mon+1, tm.tm_mday,
+ tm.tm_hour, tm.tm_min, tm.tm_sec);
+ } else {
+ printf("error\n");
+ }
+ }
+ }
+
+ printf("\nTesting av_parse_time()\n");
+ {
+ int i;
+ int64_t tv;
+ time_t tvi;
+ struct tm *tm;
+ static char tzstr[] = "TZ=CET-1";
+ const char *time_string[] = {
+ "now",
+ "12:35:46",
+ "2000-12-20 0:02:47.5z",
+ "2000-12-20T010247.6",
+ };
+ const char *duration_string[] = {
+ "2:34:56.79",
+ "-1:23:45.67",
+ "42.1729",
+ "-1729.42",
+ "12:34",
+ };
+
+ av_log_set_level(AV_LOG_DEBUG);
+ putenv(tzstr);
+ printf("(now is 2012-03-17 09:14:13 +0100, local time is UTC+1)\n");
+ for (i = 0; i < FF_ARRAY_ELEMS(time_string); i++) {
+ printf("%-24s -> ", time_string[i]);
+ if (av_parse_time(&tv, time_string[i], 0)) {
+ printf("error\n");
+ } else {
+ tvi = tv / 1000000;
+ tm = gmtime(&tvi);
+ printf("%14"PRIi64".%06d = %04d-%02d-%02dT%02d:%02d:%02dZ\n",
+ tv / 1000000, (int)(tv % 1000000),
+ tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ }
+ }
+ for (i = 0; i < FF_ARRAY_ELEMS(duration_string); i++) {
+ printf("%-24s -> ", duration_string[i]);
+ if (av_parse_time(&tv, duration_string[i], 1)) {
+ printf("error\n");
+ } else {
+ printf("%+21"PRIi64"\n", tv);
+ }
}
}
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