787 lines
25 KiB
C
787 lines
25 KiB
C
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* misc parsing utilities
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*/
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#include <time.h>
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#include "avstring.h"
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#include "avutil.h"
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#include "common.h"
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#include "eval.h"
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#include "log.h"
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#include "random_seed.h"
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#include "time_internal.h"
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#include "parseutils.h"
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#include "time.h"
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#ifdef TEST
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#define av_get_random_seed av_get_random_seed_deterministic
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static uint32_t av_get_random_seed_deterministic(void);
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#define av_gettime() 1331972053200000
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#endif
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int av_parse_ratio(AVRational *q, const char *str, int max,
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int log_offset, void *log_ctx)
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{
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char c;
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int ret;
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if (sscanf(str, "%d:%d%c", &q->num, &q->den, &c) != 2) {
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double d;
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ret = av_expr_parse_and_eval(&d, str, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, log_offset, log_ctx);
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if (ret < 0)
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return ret;
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*q = av_d2q(d, max);
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} else {
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av_reduce(&q->num, &q->den, q->num, q->den, max);
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}
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return 0;
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}
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typedef struct VideoSizeAbbr {
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const char *abbr;
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int width, height;
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} VideoSizeAbbr;
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typedef struct VideoRateAbbr {
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const char *abbr;
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AVRational rate;
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} VideoRateAbbr;
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static const VideoSizeAbbr video_size_abbrs[] = {
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{ "ntsc", 720, 480 },
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{ "pal", 720, 576 },
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{ "qntsc", 352, 240 }, /* VCD compliant NTSC */
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{ "qpal", 352, 288 }, /* VCD compliant PAL */
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{ "sntsc", 640, 480 }, /* square pixel NTSC */
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{ "spal", 768, 576 }, /* square pixel PAL */
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{ "film", 352, 240 },
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{ "ntsc-film", 352, 240 },
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{ "sqcif", 128, 96 },
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{ "qcif", 176, 144 },
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{ "cif", 352, 288 },
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{ "4cif", 704, 576 },
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{ "16cif", 1408,1152 },
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{ "qqvga", 160, 120 },
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{ "qvga", 320, 240 },
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{ "vga", 640, 480 },
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{ "svga", 800, 600 },
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{ "xga", 1024, 768 },
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{ "uxga", 1600,1200 },
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{ "qxga", 2048,1536 },
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{ "sxga", 1280,1024 },
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{ "qsxga", 2560,2048 },
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{ "hsxga", 5120,4096 },
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{ "wvga", 852, 480 },
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{ "wxga", 1366, 768 },
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{ "wsxga", 1600,1024 },
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{ "wuxga", 1920,1200 },
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{ "woxga", 2560,1600 },
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{ "wqsxga", 3200,2048 },
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{ "wquxga", 3840,2400 },
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{ "whsxga", 6400,4096 },
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{ "whuxga", 7680,4800 },
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{ "cga", 320, 200 },
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{ "ega", 640, 350 },
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{ "hd480", 852, 480 },
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{ "hd720", 1280, 720 },
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{ "hd1080", 1920,1080 },
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{ "2k", 2048,1080 }, /* Digital Cinema System Specification */
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{ "2kdci", 2048,1080 },
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{ "2kflat", 1998,1080 },
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{ "2kscope", 2048, 858 },
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{ "4k", 4096,2160 }, /* Digital Cinema System Specification */
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{ "4kdci", 4096,2160 },
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{ "4kflat", 3996,2160 },
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{ "4kscope", 4096,1716 },
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{ "nhd", 640,360 },
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{ "hqvga", 240,160 },
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{ "wqvga", 400,240 },
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{ "fwqvga", 432,240 },
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{ "hvga", 480,320 },
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{ "qhd", 960,540 },
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{ "uhd2160", 3840,2160 },
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{ "uhd4320", 7680,4320 },
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};
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static const VideoRateAbbr video_rate_abbrs[]= {
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{ "ntsc", { 30000, 1001 } },
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{ "pal", { 25, 1 } },
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{ "qntsc", { 30000, 1001 } }, /* VCD compliant NTSC */
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{ "qpal", { 25, 1 } }, /* VCD compliant PAL */
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{ "sntsc", { 30000, 1001 } }, /* square pixel NTSC */
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{ "spal", { 25, 1 } }, /* square pixel PAL */
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{ "film", { 24, 1 } },
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{ "ntsc-film", { 24000, 1001 } },
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};
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static const char *months[12] = {
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"january", "february", "march", "april", "may", "june", "july", "august",
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"september", "october", "november", "december"
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};
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int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
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{
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int i;
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int n = FF_ARRAY_ELEMS(video_size_abbrs);
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const char *p;
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int width = 0, height = 0;
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for (i = 0; i < n; i++) {
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if (!strcmp(video_size_abbrs[i].abbr, str)) {
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width = video_size_abbrs[i].width;
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height = video_size_abbrs[i].height;
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break;
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}
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}
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if (i == n) {
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width = strtol(str, (void*)&p, 10);
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if (*p)
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p++;
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height = strtol(p, (void*)&p, 10);
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/* trailing extraneous data detected, like in 123x345foobar */
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if (*p)
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return AVERROR(EINVAL);
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}
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if (width <= 0 || height <= 0)
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return AVERROR(EINVAL);
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*width_ptr = width;
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*height_ptr = height;
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return 0;
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}
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int av_parse_video_rate(AVRational *rate, const char *arg)
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{
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int i, ret;
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int n = FF_ARRAY_ELEMS(video_rate_abbrs);
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/* First, we check our abbreviation table */
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for (i = 0; i < n; ++i)
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if (!strcmp(video_rate_abbrs[i].abbr, arg)) {
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*rate = video_rate_abbrs[i].rate;
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return 0;
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}
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/* Then, we try to parse it as fraction */
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if ((ret = av_parse_ratio_quiet(rate, arg, 1001000)) < 0)
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return ret;
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if (rate->num <= 0 || rate->den <= 0)
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return AVERROR(EINVAL);
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return 0;
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}
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typedef struct ColorEntry {
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const char *name; ///< a string representing the name of the color
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uint8_t rgb_color[3]; ///< RGB values for the color
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} ColorEntry;
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static const ColorEntry color_table[] = {
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{ "AliceBlue", { 0xF0, 0xF8, 0xFF } },
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{ "AntiqueWhite", { 0xFA, 0xEB, 0xD7 } },
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{ "Aqua", { 0x00, 0xFF, 0xFF } },
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{ "Aquamarine", { 0x7F, 0xFF, 0xD4 } },
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{ "Azure", { 0xF0, 0xFF, 0xFF } },
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{ "Beige", { 0xF5, 0xF5, 0xDC } },
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{ "Bisque", { 0xFF, 0xE4, 0xC4 } },
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{ "Black", { 0x00, 0x00, 0x00 } },
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{ "BlanchedAlmond", { 0xFF, 0xEB, 0xCD } },
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{ "Blue", { 0x00, 0x00, 0xFF } },
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{ "BlueViolet", { 0x8A, 0x2B, 0xE2 } },
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{ "Brown", { 0xA5, 0x2A, 0x2A } },
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{ "BurlyWood", { 0xDE, 0xB8, 0x87 } },
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{ "CadetBlue", { 0x5F, 0x9E, 0xA0 } },
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{ "Chartreuse", { 0x7F, 0xFF, 0x00 } },
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{ "Chocolate", { 0xD2, 0x69, 0x1E } },
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{ "Coral", { 0xFF, 0x7F, 0x50 } },
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{ "CornflowerBlue", { 0x64, 0x95, 0xED } },
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{ "Cornsilk", { 0xFF, 0xF8, 0xDC } },
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{ "Crimson", { 0xDC, 0x14, 0x3C } },
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{ "Cyan", { 0x00, 0xFF, 0xFF } },
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{ "DarkBlue", { 0x00, 0x00, 0x8B } },
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{ "DarkCyan", { 0x00, 0x8B, 0x8B } },
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{ "DarkGoldenRod", { 0xB8, 0x86, 0x0B } },
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{ "DarkGray", { 0xA9, 0xA9, 0xA9 } },
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{ "DarkGreen", { 0x00, 0x64, 0x00 } },
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{ "DarkKhaki", { 0xBD, 0xB7, 0x6B } },
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{ "DarkMagenta", { 0x8B, 0x00, 0x8B } },
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{ "DarkOliveGreen", { 0x55, 0x6B, 0x2F } },
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{ "Darkorange", { 0xFF, 0x8C, 0x00 } },
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{ "DarkOrchid", { 0x99, 0x32, 0xCC } },
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{ "DarkRed", { 0x8B, 0x00, 0x00 } },
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{ "DarkSalmon", { 0xE9, 0x96, 0x7A } },
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{ "DarkSeaGreen", { 0x8F, 0xBC, 0x8F } },
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{ "DarkSlateBlue", { 0x48, 0x3D, 0x8B } },
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{ "DarkSlateGray", { 0x2F, 0x4F, 0x4F } },
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{ "DarkTurquoise", { 0x00, 0xCE, 0xD1 } },
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{ "DarkViolet", { 0x94, 0x00, 0xD3 } },
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{ "DeepPink", { 0xFF, 0x14, 0x93 } },
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{ "DeepSkyBlue", { 0x00, 0xBF, 0xFF } },
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{ "DimGray", { 0x69, 0x69, 0x69 } },
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{ "DodgerBlue", { 0x1E, 0x90, 0xFF } },
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{ "FireBrick", { 0xB2, 0x22, 0x22 } },
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{ "FloralWhite", { 0xFF, 0xFA, 0xF0 } },
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{ "ForestGreen", { 0x22, 0x8B, 0x22 } },
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{ "Fuchsia", { 0xFF, 0x00, 0xFF } },
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{ "Gainsboro", { 0xDC, 0xDC, 0xDC } },
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{ "GhostWhite", { 0xF8, 0xF8, 0xFF } },
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{ "Gold", { 0xFF, 0xD7, 0x00 } },
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{ "GoldenRod", { 0xDA, 0xA5, 0x20 } },
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{ "Gray", { 0x80, 0x80, 0x80 } },
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{ "Green", { 0x00, 0x80, 0x00 } },
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{ "GreenYellow", { 0xAD, 0xFF, 0x2F } },
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{ "HoneyDew", { 0xF0, 0xFF, 0xF0 } },
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{ "HotPink", { 0xFF, 0x69, 0xB4 } },
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{ "IndianRed", { 0xCD, 0x5C, 0x5C } },
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{ "Indigo", { 0x4B, 0x00, 0x82 } },
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{ "Ivory", { 0xFF, 0xFF, 0xF0 } },
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{ "Khaki", { 0xF0, 0xE6, 0x8C } },
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{ "Lavender", { 0xE6, 0xE6, 0xFA } },
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{ "LavenderBlush", { 0xFF, 0xF0, 0xF5 } },
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{ "LawnGreen", { 0x7C, 0xFC, 0x00 } },
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{ "LemonChiffon", { 0xFF, 0xFA, 0xCD } },
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{ "LightBlue", { 0xAD, 0xD8, 0xE6 } },
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{ "LightCoral", { 0xF0, 0x80, 0x80 } },
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{ "LightCyan", { 0xE0, 0xFF, 0xFF } },
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{ "LightGoldenRodYellow", { 0xFA, 0xFA, 0xD2 } },
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{ "LightGreen", { 0x90, 0xEE, 0x90 } },
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{ "LightGrey", { 0xD3, 0xD3, 0xD3 } },
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{ "LightPink", { 0xFF, 0xB6, 0xC1 } },
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{ "LightSalmon", { 0xFF, 0xA0, 0x7A } },
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{ "LightSeaGreen", { 0x20, 0xB2, 0xAA } },
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{ "LightSkyBlue", { 0x87, 0xCE, 0xFA } },
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{ "LightSlateGray", { 0x77, 0x88, 0x99 } },
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{ "LightSteelBlue", { 0xB0, 0xC4, 0xDE } },
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{ "LightYellow", { 0xFF, 0xFF, 0xE0 } },
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{ "Lime", { 0x00, 0xFF, 0x00 } },
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{ "LimeGreen", { 0x32, 0xCD, 0x32 } },
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{ "Linen", { 0xFA, 0xF0, 0xE6 } },
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{ "Magenta", { 0xFF, 0x00, 0xFF } },
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{ "Maroon", { 0x80, 0x00, 0x00 } },
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{ "MediumAquaMarine", { 0x66, 0xCD, 0xAA } },
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{ "MediumBlue", { 0x00, 0x00, 0xCD } },
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{ "MediumOrchid", { 0xBA, 0x55, 0xD3 } },
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{ "MediumPurple", { 0x93, 0x70, 0xD8 } },
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{ "MediumSeaGreen", { 0x3C, 0xB3, 0x71 } },
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{ "MediumSlateBlue", { 0x7B, 0x68, 0xEE } },
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{ "MediumSpringGreen", { 0x00, 0xFA, 0x9A } },
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{ "MediumTurquoise", { 0x48, 0xD1, 0xCC } },
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{ "MediumVioletRed", { 0xC7, 0x15, 0x85 } },
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{ "MidnightBlue", { 0x19, 0x19, 0x70 } },
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{ "MintCream", { 0xF5, 0xFF, 0xFA } },
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{ "MistyRose", { 0xFF, 0xE4, 0xE1 } },
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{ "Moccasin", { 0xFF, 0xE4, 0xB5 } },
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{ "NavajoWhite", { 0xFF, 0xDE, 0xAD } },
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{ "Navy", { 0x00, 0x00, 0x80 } },
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{ "OldLace", { 0xFD, 0xF5, 0xE6 } },
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{ "Olive", { 0x80, 0x80, 0x00 } },
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{ "OliveDrab", { 0x6B, 0x8E, 0x23 } },
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{ "Orange", { 0xFF, 0xA5, 0x00 } },
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{ "OrangeRed", { 0xFF, 0x45, 0x00 } },
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{ "Orchid", { 0xDA, 0x70, 0xD6 } },
|
||
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{ "PaleGoldenRod", { 0xEE, 0xE8, 0xAA } },
|
||
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{ "PaleGreen", { 0x98, 0xFB, 0x98 } },
|
||
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{ "PaleTurquoise", { 0xAF, 0xEE, 0xEE } },
|
||
|
|
{ "PaleVioletRed", { 0xD8, 0x70, 0x93 } },
|
||
|
|
{ "PapayaWhip", { 0xFF, 0xEF, 0xD5 } },
|
||
|
|
{ "PeachPuff", { 0xFF, 0xDA, 0xB9 } },
|
||
|
|
{ "Peru", { 0xCD, 0x85, 0x3F } },
|
||
|
|
{ "Pink", { 0xFF, 0xC0, 0xCB } },
|
||
|
|
{ "Plum", { 0xDD, 0xA0, 0xDD } },
|
||
|
|
{ "PowderBlue", { 0xB0, 0xE0, 0xE6 } },
|
||
|
|
{ "Purple", { 0x80, 0x00, 0x80 } },
|
||
|
|
{ "Red", { 0xFF, 0x00, 0x00 } },
|
||
|
|
{ "RosyBrown", { 0xBC, 0x8F, 0x8F } },
|
||
|
|
{ "RoyalBlue", { 0x41, 0x69, 0xE1 } },
|
||
|
|
{ "SaddleBrown", { 0x8B, 0x45, 0x13 } },
|
||
|
|
{ "Salmon", { 0xFA, 0x80, 0x72 } },
|
||
|
|
{ "SandyBrown", { 0xF4, 0xA4, 0x60 } },
|
||
|
|
{ "SeaGreen", { 0x2E, 0x8B, 0x57 } },
|
||
|
|
{ "SeaShell", { 0xFF, 0xF5, 0xEE } },
|
||
|
|
{ "Sienna", { 0xA0, 0x52, 0x2D } },
|
||
|
|
{ "Silver", { 0xC0, 0xC0, 0xC0 } },
|
||
|
|
{ "SkyBlue", { 0x87, 0xCE, 0xEB } },
|
||
|
|
{ "SlateBlue", { 0x6A, 0x5A, 0xCD } },
|
||
|
|
{ "SlateGray", { 0x70, 0x80, 0x90 } },
|
||
|
|
{ "Snow", { 0xFF, 0xFA, 0xFA } },
|
||
|
|
{ "SpringGreen", { 0x00, 0xFF, 0x7F } },
|
||
|
|
{ "SteelBlue", { 0x46, 0x82, 0xB4 } },
|
||
|
|
{ "Tan", { 0xD2, 0xB4, 0x8C } },
|
||
|
|
{ "Teal", { 0x00, 0x80, 0x80 } },
|
||
|
|
{ "Thistle", { 0xD8, 0xBF, 0xD8 } },
|
||
|
|
{ "Tomato", { 0xFF, 0x63, 0x47 } },
|
||
|
|
{ "Turquoise", { 0x40, 0xE0, 0xD0 } },
|
||
|
|
{ "Violet", { 0xEE, 0x82, 0xEE } },
|
||
|
|
{ "Wheat", { 0xF5, 0xDE, 0xB3 } },
|
||
|
|
{ "White", { 0xFF, 0xFF, 0xFF } },
|
||
|
|
{ "WhiteSmoke", { 0xF5, 0xF5, 0xF5 } },
|
||
|
|
{ "Yellow", { 0xFF, 0xFF, 0x00 } },
|
||
|
|
{ "YellowGreen", { 0x9A, 0xCD, 0x32 } },
|
||
|
|
};
|
||
|
|
|
||
|
|
static int color_table_compare(const void *lhs, const void *rhs)
|
||
|
|
{
|
||
|
|
return av_strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define ALPHA_SEP '@'
|
||
|
|
|
||
|
|
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
|
||
|
|
void *log_ctx)
|
||
|
|
{
|
||
|
|
char *tail, color_string2[128];
|
||
|
|
const ColorEntry *entry;
|
||
|
|
int len, hex_offset = 0;
|
||
|
|
|
||
|
|
if (color_string[0] == '#') {
|
||
|
|
hex_offset = 1;
|
||
|
|
} else if (!strncmp(color_string, "0x", 2))
|
||
|
|
hex_offset = 2;
|
||
|
|
|
||
|
|
if (slen < 0)
|
||
|
|
slen = strlen(color_string);
|
||
|
|
av_strlcpy(color_string2, color_string + hex_offset,
|
||
|
|
FFMIN(slen-hex_offset+1, sizeof(color_string2)));
|
||
|
|
if ((tail = strchr(color_string2, ALPHA_SEP)))
|
||
|
|
*tail++ = 0;
|
||
|
|
len = strlen(color_string2);
|
||
|
|
rgba_color[3] = 255;
|
||
|
|
|
||
|
|
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;
|
||
|
|
rgba_color[2] = rgba >> 8;
|
||
|
|
rgba_color[3] = rgba;
|
||
|
|
} else if (hex_offset ||
|
||
|
|
strspn(color_string2, "0123456789ABCDEFabcdef") == len) {
|
||
|
|
char *tail;
|
||
|
|
unsigned int rgba = strtoul(color_string2, &tail, 16);
|
||
|
|
|
||
|
|
if (*tail || (len != 6 && len != 8)) {
|
||
|
|
av_log(log_ctx, AV_LOG_ERROR, "Invalid 0xRRGGBB[AA] color string: '%s'\n", color_string2);
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
}
|
||
|
|
if (len == 8) {
|
||
|
|
rgba_color[3] = rgba;
|
||
|
|
rgba >>= 8;
|
||
|
|
}
|
||
|
|
rgba_color[0] = rgba >> 16;
|
||
|
|
rgba_color[1] = rgba >> 8;
|
||
|
|
rgba_color[2] = rgba;
|
||
|
|
} else {
|
||
|
|
entry = bsearch(color_string2,
|
||
|
|
color_table,
|
||
|
|
FF_ARRAY_ELEMS(color_table),
|
||
|
|
sizeof(ColorEntry),
|
||
|
|
color_table_compare);
|
||
|
|
if (!entry) {
|
||
|
|
av_log(log_ctx, AV_LOG_ERROR, "Cannot find color '%s'\n", color_string2);
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
}
|
||
|
|
memcpy(rgba_color, entry->rgb_color, 3);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (tail) {
|
||
|
|
double alpha;
|
||
|
|
const char *alpha_string = tail;
|
||
|
|
if (!strncmp(alpha_string, "0x", 2)) {
|
||
|
|
alpha = strtoul(alpha_string, &tail, 16);
|
||
|
|
} else {
|
||
|
|
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) {
|
||
|
|
av_log(log_ctx, AV_LOG_ERROR, "Invalid alpha value specifier '%s' in '%s'\n",
|
||
|
|
alpha_string, color_string);
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
}
|
||
|
|
rgba_color[3] = alpha;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *av_get_known_color_name(int color_idx, const uint8_t **rgbp)
|
||
|
|
{
|
||
|
|
const ColorEntry *color;
|
||
|
|
|
||
|
|
if ((unsigned)color_idx >= FF_ARRAY_ELEMS(color_table))
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
color = &color_table[color_idx];
|
||
|
|
if (rgbp)
|
||
|
|
*rgbp = color->rgb_color;
|
||
|
|
|
||
|
|
return color->name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int date_get_month(const char **pp) {
|
||
|
|
int i = 0;
|
||
|
|
for (; i < 12; i++) {
|
||
|
|
if (!av_strncasecmp(*pp, months[i], 3)) {
|
||
|
|
const char *mo_full = months[i] + 3;
|
||
|
|
int len = strlen(mo_full);
|
||
|
|
*pp += 3;
|
||
|
|
if (len > 0 && !av_strncasecmp(*pp, mo_full, len))
|
||
|
|
*pp += len;
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
char *av_small_strptime(const char *p, const char *fmt, struct tm *dt)
|
||
|
|
{
|
||
|
|
int c, val;
|
||
|
|
|
||
|
|
while((c = *fmt++)) {
|
||
|
|
if (c != '%') {
|
||
|
|
if (av_isspace(c))
|
||
|
|
for (; *p && av_isspace(*p); p++);
|
||
|
|
else if (*p != c)
|
||
|
|
return NULL;
|
||
|
|
else p++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
c = *fmt++;
|
||
|
|
switch(c) {
|
||
|
|
case 'H':
|
||
|
|
case 'J':
|
||
|
|
val = date_get_num(&p, 0, c == 'H' ? 23 : INT_MAX, c == 'H' ? 2 : 4);
|
||
|
|
|
||
|
|
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 'T':
|
||
|
|
p = av_small_strptime(p, "%H:%M:%S", dt);
|
||
|
|
if (!p)
|
||
|
|
return NULL;
|
||
|
|
break;
|
||
|
|
case 'b':
|
||
|
|
case 'B':
|
||
|
|
case 'h':
|
||
|
|
val = date_get_month(&p);
|
||
|
|
if (val == -1)
|
||
|
|
return NULL;
|
||
|
|
dt->tm_mon = val;
|
||
|
|
break;
|
||
|
|
case '%':
|
||
|
|
if (*p++ != '%')
|
||
|
|
return NULL;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (char*)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 = 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;
|
||
|
|
|
||
|
|
return t;
|
||
|
|
}
|
||
|
|
|
||
|
|
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
|
||
|
|
{
|
||
|
|
const char *p, *q;
|
||
|
|
int64_t t, now64;
|
||
|
|
time_t now;
|
||
|
|
struct tm dt = { 0 }, tmbuf;
|
||
|
|
int today = 0, negative = 0, microseconds = 0, suffix = 1000000;
|
||
|
|
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",
|
||
|
|
};
|
||
|
|
static const char * const tz_fmt[] = {
|
||
|
|
"%H:%M",
|
||
|
|
"%H%M",
|
||
|
|
"%H",
|
||
|
|
};
|
||
|
|
|
||
|
|
p = timestr;
|
||
|
|
q = NULL;
|
||
|
|
*timeval = INT64_MIN;
|
||
|
|
if (!duration) {
|
||
|
|
now64 = av_gettime();
|
||
|
|
now = now64 / 1000000;
|
||
|
|
|
||
|
|
if (!av_strcasecmp(timestr, "now")) {
|
||
|
|
*timeval = now64;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* parse the year-month-day part */
|
||
|
|
for (i = 0; i < FF_ARRAY_ELEMS(date_fmt); i++) {
|
||
|
|
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) {
|
||
|
|
today = 1;
|
||
|
|
q = p;
|
||
|
|
}
|
||
|
|
p = q;
|
||
|
|
|
||
|
|
if (*p == 'T' || *p == 't')
|
||
|
|
p++;
|
||
|
|
else
|
||
|
|
while (av_isspace(*p))
|
||
|
|
p++;
|
||
|
|
|
||
|
|
/* parse the hour-minute-second part */
|
||
|
|
for (i = 0; i < FF_ARRAY_ELEMS(time_fmt); i++) {
|
||
|
|
q = av_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 = 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) {
|
||
|
|
char *o;
|
||
|
|
/* parse timestr as S+ */
|
||
|
|
errno = 0;
|
||
|
|
t = strtoll(p, &o, 10);
|
||
|
|
if (o == p) /* the parsing didn't succeed */
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
if (errno == ERANGE)
|
||
|
|
return AVERROR(ERANGE);
|
||
|
|
q = o;
|
||
|
|
} else {
|
||
|
|
t = dt.tm_hour * 3600 + dt.tm_min * 60 + dt.tm_sec;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Now we have all the fields that we can get */
|
||
|
|
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) {
|
||
|
|
if (q[0] == 'm' && q[1] == 's') {
|
||
|
|
suffix = 1000;
|
||
|
|
microseconds /= 1000;
|
||
|
|
q += 2;
|
||
|
|
} else if (q[0] == 'u' && q[1] == 's') {
|
||
|
|
suffix = 1;
|
||
|
|
microseconds = 0;
|
||
|
|
q += 2;
|
||
|
|
} else if (*q == 's')
|
||
|
|
q++;
|
||
|
|
} else {
|
||
|
|
int is_utc = *q == 'Z' || *q == 'z';
|
||
|
|
int tzoffset = 0;
|
||
|
|
q += is_utc;
|
||
|
|
if (!today && !is_utc && (*q == '+' || *q == '-')) {
|
||
|
|
struct tm tz = { 0 };
|
||
|
|
int sign = (*q == '+' ? -1 : 1);
|
||
|
|
q++;
|
||
|
|
p = q;
|
||
|
|
for (i = 0; i < FF_ARRAY_ELEMS(tz_fmt); i++) {
|
||
|
|
q = av_small_strptime(p, tz_fmt[i], &tz);
|
||
|
|
if (q)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (!q)
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
tzoffset = sign * (tz.tm_hour * 60 + tz.tm_min) * 60;
|
||
|
|
is_utc = 1;
|
||
|
|
}
|
||
|
|
if (today) { /* fill in today's date */
|
||
|
|
struct tm dt2 = is_utc ? *gmtime_r(&now, &tmbuf) : *localtime_r(&now, &tmbuf);
|
||
|
|
dt2.tm_hour = dt.tm_hour;
|
||
|
|
dt2.tm_min = dt.tm_min;
|
||
|
|
dt2.tm_sec = dt.tm_sec;
|
||
|
|
dt = dt2;
|
||
|
|
}
|
||
|
|
dt.tm_isdst = is_utc ? 0 : -1;
|
||
|
|
t = is_utc ? av_timegm(&dt) : mktime(&dt);
|
||
|
|
t += tzoffset;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check that we are at the end of the string */
|
||
|
|
if (*q)
|
||
|
|
return AVERROR(EINVAL);
|
||
|
|
|
||
|
|
if (INT64_MAX / suffix < t)
|
||
|
|
return AVERROR(ERANGE);
|
||
|
|
t *= suffix;
|
||
|
|
if (INT64_MAX - microseconds < t)
|
||
|
|
return AVERROR(ERANGE);
|
||
|
|
t += microseconds;
|
||
|
|
*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;
|
||
|
|
}
|