解析.srt文件
Posted
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了解析.srt文件相关的知识,希望对你有一定的参考价值。
1
00:00:00,074 --> 00:00:02,564
Previously on Breaking Bad...
2
00:00:02,663 --> 00:00:04,393
Words...
我需要用php解析srt文件并用变量打印文件中的所有subs。
我找不到合适的reg exps。当这样做时,我需要采用id,时间和字幕变量。并且当打印时,不存在array()s等等必须与原始文件中的相同。
我的意思是我必须打印出来;
$number <br> (e.g. 1)
$time <br> (e.g. 00:00:00,074 --> 00:00:02,564)
$subtitle <br> (e.g. Previously on Breaking Bad...)
顺便说一句,我有这个代码。但它没有看到线条。它必须编辑,但如何?
$srt_file = file('test.srt',FILE_IGNORE_NEW_LINES);
$regex = "/^(d)+ ([d]+:[d]+:[d]+,[d]+) --> ([d]+:[d]+:[d]+,[d]+) (w.+)/";
foreach($srt_file as $srt){
preg_match($regex,$srt,$srt_lines);
print_r($srt_lines);
echo '<br />';
}
这是一个简短的状态机,用于逐行解析SRT文件:
define('SRT_STATE_SUBNUMBER', 0);
define('SRT_STATE_TIME', 1);
define('SRT_STATE_TEXT', 2);
define('SRT_STATE_BLANK', 3);
$lines = file('test.srt');
$subs = array();
$state = SRT_STATE_SUBNUMBER;
$subNum = 0;
$subText = '';
$subTime = '';
foreach($lines as $line) {
switch($state) {
case SRT_STATE_SUBNUMBER:
$subNum = trim($line);
$state = SRT_STATE_TIME;
break;
case SRT_STATE_TIME:
$subTime = trim($line);
$state = SRT_STATE_TEXT;
break;
case SRT_STATE_TEXT:
if (trim($line) == '') {
$sub = new stdClass;
$sub->number = $subNum;
list($sub->startTime, $sub->stopTime) = explode(' --> ', $subTime);
$sub->text = $subText;
$subText = '';
$state = SRT_STATE_SUBNUMBER;
$subs[] = $sub;
} else {
$subText .= $line;
}
break;
}
}
if ($state == SRT_STATE_TEXT) {
// if file was missing the trailing newlines, we'll be in this
// state here. Append the last read text and add the last sub.
$sub->text = $subText;
$subs[] = $sub;
}
print_r($subs);
结果:
Array
(
[0] => stdClass Object
(
[number] => 1
[stopTime] => 00:00:24,400
[startTime] => 00:00:20,000
[text] => Altocumulus clouds occur between six thousand
)
[1] => stdClass Object
(
[number] => 2
[stopTime] => 00:00:27,800
[startTime] => 00:00:24,600
[text] => and twenty thousand feet above ground level.
)
)
然后,您可以循环遍历subs数组或通过数组偏移量访问它们:
echo $subs[0]->number . ' says ' . $subs[0]->text . "
";
通过循环遍历每个潜在客户并显示它来显示所有潜艇:
foreach($subs as $sub) {
echo $sub->number . ' begins at ' . $sub->startTime .
' and ends at ' . $sub->stopTime . '. The text is: <br /><pre>' .
$sub->text . "</pre><br />
";
}
进一步阅读:SubRip Text File Format
这是不匹配的,因为你的$ srt_file数组可能如下所示:
Array
([0] => '1',
[1] => '00:00:00,074 --> 00:00:02,564',
[2] => 'Previously on Breaking Bad...'.
[3] => '',
[4] => '2',
...
)
你的正则表达式不会匹配任何这些元素。
如果你的意图是将整个文件读入一个长字符串的内存中,那么使用file_get_contents将整个文件内容整合到一个字符串中。然后使用preg_match_all获取所有正则表达式匹配。
否则,您可能会尝试遍历数组并尝试匹配各种正则表达式模式,以确定该行是id,时间范围还是文本,并做适当的事情。很明显,您可能还需要一些逻辑来确保以正确的顺序获取值(id,然后是时间范围,然后是文本)。
使用file()
将array_chunk()
数组分组为4块,然后省略最后一个条目,因为它是一个如下所示的空白行:
foreach( array_chunk( file( 'test.srt'), 4) as $entry) {
list( $number, $time, $subtitle) = $entry;
echo $number . '<br />';
echo $time . '<br />';
echo $subtitle . '<br />';
}
我创建了一个类来将.srt文件转换为数组。数组的每个条目都具有以下属性:
- if:表示字幕id的数字(2)
- start:float,以秒为单位的开始时间(24.443)
- 结束:浮动,结束时间(秒)(27.647)
- startString:人类可读格式的开始时间(00:00:24.443)
- endString:人类可读格式的结束时间(00:00:24.647)
- duration:字幕的持续时间,以ms为单位(3204)
- 文字:副标题的文字(孔雀统治了贡门市。)
代码是php7:
<?php
namespace VideoSubtitlesSrt;
class SrtToArrayTool
{
public static function getArrayByFile(string $file): array
{
$ret = [];
$gen = function ($filename) {
$file = fopen($filename, 'r');
while (($line = fgets($file)) !== false) {
yield rtrim($line);
}
fclose($file);
};
$c = 0;
$item = [];
$text = '';
$n = 0;
foreach ($gen($file) as $line) {
if ('' !== $line) {
if (0 === $n) {
$item['id'] = $line;
$n++;
}
elseif (1 === $n) {
$p = explode('-->', $line);
$start = str_replace(',', '.', trim($p[0]));
$end = str_replace(',', '.', trim($p[1]));
$startTime = self::toMilliSeconds(str_replace('.', ':', $start));
$endTime = self::toMilliSeconds(str_replace('.', ':', $end));
$item['start'] = $startTime / 1000;
$item['end'] = $endTime / 1000;
$item['startString'] = $start;
$item['endString'] = $end;
$item['duration'] = $endTime - $startTime;
$n++;
}
else {
if ($n >= 2) {
if ('' !== $text) {
$text .= PHP_EOL;
}
$text .= $line;
}
}
}
else {
if (0 !== $n) {
$item['text'] = $text;
$ret[] = $item;
$text = '';
$n = 0;
}
}
$c++;
}
return $ret;
}
private static function toMilliSeconds(string $duration): int
{
$p = explode(':', $duration);
return (int)$p[0] * 3600000 + (int)$p[1] * 60000 + (int)$p[2] * 1000 + (int)$p[3];
}
}
或者在这里查看:https://github.com/lingtalfi/VideoSubtitles
您可以使用此项目:https://github.com/captioning/captioning
示例代码:
<?php
require_once __DIR__.'/../vendor/autoload.php';
use CaptioningFormatSubripFile;
try {
$file = new SubripFile('your_file.srt');
foreach ($file->getCues() as $line) {
echo 'start: ' . $line->getStart() . "<br />
";
echo 'stop: ' . $line->getStop() . "<br />
";
echo 'startMS: ' . $line->getStartMS() . "<br />
";
echo 'stopMS: ' . $line->getStopMS() . "<br />
";
echo 'text: ' . $line->getText() . "<br />
";
echo "=====================<br />
";
}
} catch(Exception $e) {
echo "Error: ".$e->getMessage()."
";
}
样本输出:
> php index.php
start: 00:01:48,387<br />
stop: 00:01:53,269<br />
startMS: 108387<br />
stopMS: 113269<br />
text: ┘ç┘à╪د┘ç┘┌»█î ╪▓█î╪▒┘┘ê█î╪│ ╪ذ╪د ┌ر█î┘█î╪ز ╪ذ┘┘ê╪▒█î ┘ê ┌ر╪»┌ر x265
=====================<br />
start: 00:02:09,360<br />
stop: 00:02:12,021<br />
startMS: 129360<br />
stopMS: 132021<br />
text: .┘à╪د ┘╪ذ╪د┘è╪» ╪ز┘┘ç╪د┘è┘è ╪د┘è┘╪ش╪د ╪ذ╪د╪┤┘è┘à -
┌╪▒╪د ╪ا<br />
=====================<br />
start: 00:02:12,022<br />
stop: 00:02:14,725<br />
startMS: 132022<br />
stopMS: 134725<br />
text: ..╪د┌»┘ç ┘╛╪»╪▒╪ز -
.╪د┘ê┘ ┘ç┘è┌┘ê┘é╪ز ┘à╪ز┘ê╪ش┘ç ╪▒┘╪ز┘┘à┘ê┘ ┘┘à┘è╪┤┘ç -<br />
=====================<br />
它可以通过使用php换行来完成。我能成功地让我显示我的代码
$srt=preg_split("/\r\n\r\n/",trim($movie->SRT));
$result[$i]['IMDBID']=$movie->IMDBID;
$result[$i]['TMDBID']=$movie->TMDBID;
这里$ movie-> SRT是在这个问题中
以上是关于解析.srt文件的主要内容,如果未能解决你的问题,请参考以下文章