/*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* misc parsing utilities
*/
-#include <strings.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"
-#include "libavutil/avutil.h"
-#include "libavutil/eval.h"
-#include "libavutil/avstring.h"
-#include "libavutil/random_seed.h"
typedef struct {
const char *abbr;
}
}
if (i == n) {
- p = str;
- width = strtol(p, &p, 10);
+ width = strtol(str, &p, 10);
if (*p)
p++;
height = strtol(p, &p, 10);
static int color_table_compare(const void *lhs, const void *rhs)
{
- return strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
+ return av_strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
}
#define ALPHA_SEP '@'
len = strlen(color_string2);
rgba_color[3] = 255;
- if (!strcasecmp(color_string2, "random") || !strcasecmp(color_string2, "bikeshed")) {
+ if (!av_strcasecmp(color_string2, "random") || !av_strcasecmp(color_string2, "bikeshed")) {
int rgba = av_get_random_seed();
rgba_color[0] = rgba >> 24;
rgba_color[1] = rgba >> 16;
}
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);
alpha = 255 * strtod(alpha_string, &tail);
}
- 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);
return 0;
}
-#ifdef TEST
+/* get a positive number between n_min and n_max, for a maximum length
+ of len_max. Return -1 if error. */
+static int date_get_num(const char **pp,
+ int n_min, int n_max, int len_max)
+{
+ int i, val, c;
+ const char *p;
+
+ p = *pp;
+ val = 0;
+ for(i = 0; i < len_max; i++) {
+ c = *p;
+ if (!av_isdigit(c))
+ break;
+ val = (val * 10) + c - '0';
+ p++;
+ }
+ /* no number read ? */
+ if (p == *pp)
+ return -1;
+ if (val < n_min || val > n_max)
+ return -1;
+ *pp = p;
+ return val;
+}
-#undef printf
+static const char *small_strptime(const char *p, const char *fmt, struct tm *dt)
+{
+ int c, val;
+
+ for(;;) {
+ c = *fmt++;
+ if (c == '\0') {
+ return p;
+ } else if (c == '%') {
+ c = *fmt++;
+ switch(c) {
+ case 'H':
+ val = date_get_num(&p, 0, 23, 2);
+ if (val == -1)
+ return NULL;
+ dt->tm_hour = val;
+ break;
+ case 'M':
+ val = date_get_num(&p, 0, 59, 2);
+ if (val == -1)
+ return NULL;
+ dt->tm_min = val;
+ break;
+ case 'S':
+ val = date_get_num(&p, 0, 59, 2);
+ if (val == -1)
+ return NULL;
+ dt->tm_sec = val;
+ break;
+ case 'Y':
+ val = date_get_num(&p, 0, 9999, 4);
+ if (val == -1)
+ return NULL;
+ dt->tm_year = val - 1900;
+ break;
+ case 'm':
+ val = date_get_num(&p, 1, 12, 2);
+ if (val == -1)
+ return NULL;
+ dt->tm_mon = val - 1;
+ break;
+ case 'd':
+ val = date_get_num(&p, 1, 31, 2);
+ if (val == -1)
+ return NULL;
+ dt->tm_mday = val;
+ break;
+ case '%':
+ goto match;
+ default:
+ return NULL;
+ }
+ } else {
+ match:
+ if (c != *p)
+ return NULL;
+ p++;
+ }
+ }
+}
+
+time_t av_timegm(struct tm *tm)
+{
+ time_t t;
+
+ int y = tm->tm_year + 1900, m = tm->tm_mon + 1, d = tm->tm_mday;
+
+ if (m < 3) {
+ m += 12;
+ y--;
+ }
+
+ t = 86400 *
+ (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;
+
+ return t;
+}
+
+int av_parse_time(int64_t *timeval, const char *timestr, int duration)
+{
+ const char *p;
+ int64_t t;
+ struct tm dt = { 0 };
+ int i;
+ static const char * const date_fmt[] = {
+ "%Y-%m-%d",
+ "%Y%m%d",
+ };
+ static const char * const time_fmt[] = {
+ "%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;
+ if (!duration) {
+ if (!av_strncasecmp(timestr, "now", len)) {
+ *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) {
+ 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;
+ }
+
+ 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) {
+ break;
+ }
+ }
+ } else {
+ /* parse timestr as a duration */
+ if (p[0] == '-') {
+ negative = 1;
+ ++p;
+ }
+ /* parse timestr as HH:MM:SS */
+ q = small_strptime(p, time_fmt[0], &dt);
+ 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;
+ 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;
+ return AVERROR(EINVAL);
+ }
+
+ 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);
+ }
+ }
+
+ t *= 1000000;
+
+ /* 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;
+ }
+ *timeval = negative ? -t : t;
+ return 0;
+}
+
+int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
+{
+ const char *p;
+ char tag[128], *q;
+
+ p = info;
+ if (*p == '?')
+ p++;
+ for(;;) {
+ q = tag;
+ while (*p != '\0' && *p != '=' && *p != '&') {
+ if ((q - tag) < sizeof(tag) - 1)
+ *q++ = *p;
+ p++;
+ }
+ *q = '\0';
+ q = arg;
+ if (*p == '=') {
+ p++;
+ while (*p != '&' && *p != '\0') {
+ if ((q - arg) < arg_size - 1) {
+ if (*p == '+')
+ *q++ = ' ';
+ else
+ *q++ = *p;
+ }
+ p++;
+ }
+ }
+ *q = '\0';
+ if (!strcmp(tag, tag1))
+ return 1;
+ if (*p != '&')
+ break;
+ p++;
+ }
+ return 0;
+}
+
+#ifdef TEST
int main(void)
{
printf("Testing av_parse_video_rate()\n");
{
int i;
- const char *rates[] = {
+ static const char *const rates[] = {
"-inf",
"inf",
"nan",
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");
}
}
{
int i;
uint8_t rgba[4];
- const char *color_names[] = {
- "bikeshed",
- "RaNdOm",
+ static const char *const color_names[] = {
"foo",
"red",
"Red ",
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]);
}
}
projects / ffmpeg / blobdiff