C语言字符串处理提取时间(ffmpeg返回的时间字符串)

C:\Users\11266>ffmpeg -i D:/123.mp4
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:/123.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    creation_time   : 2015-04-30T02:43:22.000000Z
  Duration: 00:01:33.90, start: 0.000000, bitrate: 715 kb/s
    Stream #0:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 88200 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      creation_time   : 2015-04-30T02:43:22.000000Z
      handler_name    : GPAC ISO Audio Handler
    Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 582 kb/s, 15 fps, 25 tbr, 30k tbn, 20000k tbc (default)
    Metadata:
      creation_time   : 2015-04-30T02:43:23.000000Z
      handler_name    : GPAC ISO Video Handler

char TotalTime[100];

//解析数据
char *p = strstr(utf8_str.data(), "Duration:");
if (p)
{
	int i = 0;
	p += 9;
	while (*p != '\0' && *p != NULL && *p != ',')
	{
		if (i > 90)break; //防止越界
		TotalTime[i++] = *p++;
	}
	TotalTime[i++] = '\0';
}

qDebug() << "TotalTime:" << TotalTime;

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void extractTime(const char* time_str, int* hour, int* minute, int* second, int* msec) {
    char* token;
    char* str;
    char* saveptr;

    // 复制时间字符串到临时缓冲区
    str = strdup(time_str);

    // 分割字符串，以":"为分隔符
    token = strtok_s(str, ":", &saveptr);

    // 提取小时部分
    if (token != NULL) {
        *hour = atoi(token);
    } else {
        *hour = 0;
    }

    // 分割剩余部分，以":"为分隔符
    token = strtok_s(NULL, ":", &saveptr);

    // 提取分钟部分
    if (token != NULL) {
        *minute = atoi(token);
    } else {
        *minute = 0;
    }

    // 分割剩余部分，以"."为分隔符
    token = strtok_s(NULL, ".", &saveptr);

    // 提取秒部分
    if (token != NULL) {
        *second = atoi(token);
    } else {
        *second = 0;
    }

    // 提取毫秒部分
    token = strtok_s(NULL, "", &saveptr);
    if (token != NULL) {
        *msec = atoi(token);
    } else {
        *msec = 0;
    }

    // 释放临时缓冲区内存
    free(str);
}




int main() {
    const char* time_str = "00:01:33.90";
    int hour, minute, second, msec;

    extractTime(time_str, &hour, &minute, &second, &msec);

    printf("hour: %d\n", hour);
    printf("minute: %d\n", minute);
    printf("second: %d\n", second);
    printf("millisecond: %d\n", msec);

    return 0;
}

#include <QCoreApplication>
#include <QString>
#include <QRegularExpression>
#include <QDebug>

void extractTime(const QString& timeStr, int* hour, int* minute, int* second, int* msec)
{
    QRegularExpression regex("(\\d+):(\\d+):(\\d+)\\.(\\d+)");
    QRegularExpressionMatch match = regex.match(timeStr);
    if (match.hasMatch()) {
        *hour = match.captured(1).toInt();
        *minute = match.captured(2).toInt();
        *second = match.captured(3).toInt();
        *msec = match.captured(4).toInt();
    } else {
        *hour = 0;
        *minute = 0;
        *second = 0;
        *msec = 0;
    }
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QString timeStr = "00:01:33.90";
    int hour, minute, second, msec;
    extractTime(timeStr, &hour, &minute, &second, &msec);

    qDebug() << "hour:" << hour;
    qDebug() << "minute:" << minute;
    qDebug() << "second:" << second;
    qDebug() << "millisecond:" << msec;

    return a.exec();
}