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-rw-r--r--libavutil/parseutils.c274
1 files changed, 202 insertions, 72 deletions
diff --git a/libavutil/parseutils.c b/libavutil/parseutils.c
index 0e3fd9eab5..f2f8f18437 100644
--- a/libavutil/parseutils.c
+++ b/libavutil/parseutils.c
@@ -1,18 +1,18 @@
/*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -31,6 +31,36 @@
#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[]= {
@@ -96,7 +132,7 @@ int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
{
int i;
int n = FF_ARRAY_ELEMS(video_size_abbrs);
- char *p;
+ const char *p;
int width = 0, height = 0;
for (i = 0; i < n; i++) {
@@ -107,10 +143,14 @@ int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
}
}
if (i == n) {
- width = strtol(str, &p, 10);
+ width = strtol(str, (void*)&p, 10);
if (*p)
p++;
- height = strtol(p, &p, 10);
+ 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);
@@ -123,7 +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)
@@ -133,10 +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;
@@ -147,7 +184,7 @@ typedef struct {
uint8_t rgb_color[3]; ///< RGB values for the color
} ColorEntry;
-static ColorEntry color_table[] = {
+static const ColorEntry color_table[] = {
{ "AliceBlue", { 0xF0, 0xF8, 0xFF } },
{ "AntiqueWhite", { 0xFA, 0xEB, 0xD7 } },
{ "Aqua", { 0x00, 0xFF, 0xFF } },
@@ -215,8 +252,8 @@ static 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 } },
@@ -359,7 +396,11 @@ int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
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 || alpha < 0) {
@@ -399,19 +440,26 @@ static int date_get_num(const char **pp,
return val;
}
-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;
@@ -471,7 +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;
@@ -481,9 +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;
+ 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",
@@ -493,58 +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;
-
- time_t now = time(0);
-
- len = strlen(timestr);
- if (len > 0)
- lastch = timestr[len - 1];
- else
- lastch = '\0';
- is_utc = (lastch == 'z' || lastch == 'Z');
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 */
@@ -553,50 +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, (char **)&q, 10);
- if (q == p) {
- /* the parsing didn't succeed */
- *timeval = INT64_MIN;
+ dt.tm_sec = strtol(p, (void *)&q, 10);
+ 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 (!av_isdigit(*q))
- break;
- val += n * (*q - '0');
- }
- t += val;
- }
+ t *= 1000000;
+ t += microseconds;
*timeval = negative ? -t : t;
return 0;
}
@@ -642,6 +685,13 @@ int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info
#ifdef TEST
+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");
@@ -689,6 +739,8 @@ int main(void)
int i;
uint8_t rgba[4];
static const char *const color_names[] = {
+ "bikeshed",
+ "RaNdOm",
"foo",
"red",
"Red ",
@@ -731,6 +783,84 @@ int main(void)
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]);
+ 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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