用Java解析远程文件的FLV标头(持续时间) [英] Parsing FLV header (duration) of remote file in Java

问题描述

我正在寻找一个示例，该示例在Java中专门分析持续时间的FLV标头.给定一个FLV文件的URL，我只想下载标题并解析持续时间.我有FLV规范，但我想举个例子. Python或PHP也可以，但首选Java.

I'm looking for an example of parsing an FLV header for duration specifically in Java. Given the URL of an FLV file I want to download the header only and parse out the duration. I have the FLV spec but I want an example. Python or PHP would be OK too but Java is preferred.

推荐答案

下载标头或解析标头时遇到问题吗?如果正在下载，请使用以下代码:

Do you have problems downloading the header or parsing it? if it's downloading then use this code:

URL url = new URL(fileUrl);
InputStream dis = url.openStream();
byte[] header = new byte[HEADER_SIZE];
dis.read(header);

如果要读取int而不是字节，则可以使用DataInputStream包裹InputStream.

You can wrap InputStream with DataInputStream if you want to read int's rather than bytes.

之后，只需查看PHP-FLV Info中的getInfo方法或阅读规范.

After that just look at getInfo method from PHP-FLV Info or read the spec.

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