Runtime.getRuntime().exec(command);向ffmpeg写入byte[],为什么byte[]数据很长时 写入到ffmpeg会阻塞
时间: 2023-12-11 18:02:25 浏览: 57
可能是因为写入到ffmpeg的数据量太大,导致写入的过程中需要等待ffmpeg处理完之前的数据才能继续写入,从而造成了阻塞。此外,也可能是因为写入的数据量过大导致了内存溢出,从而导致阻塞。为了解决这个问题,可以考虑将大的byte[]数据拆分成多个小的byte[]数据进行传输,或者使用线程池等技术来进行异步操作,使得写入数据的过程不会阻塞程序的执行。
相关问题
Runtime.getRuntime().exec(command);向ffmpeg写入byte[],当byte[]很大时,向outputstream写入时会很慢吗
当向`OutputStream`写入大量数据时,写入速度可能会减慢,因为`OutputStream`的缓冲区可能会变满。当缓冲区变满时,写入操作将被阻塞,直到缓冲区中的一些数据被写入磁盘或其他目标。因此,当写入大量数据时,建议使用`BufferedOutputStream`来缓冲输出。此外,还可以考虑使用多线程并发写入,以提高写入速度。
Process process = Runtime.getRuntime().exec(ffmpegCmd);
As an AI language model, I don't have access to the full context of your code. However, I can explain this line of code in general terms.
The line of code creates a new process using the `Runtime` class and the `exec` method. The `exec` method takes a command as a parameter and creates a subprocess to execute that command.
In this particular case, the command is `ffmpegCmd`, which is likely a string containing a command for the FFmpeg library. FFmpeg is a popular open-source multimedia framework that can encode, decode, transcode, and stream audio and video files.
So, this line of code is likely creating a new process to execute an FFmpeg command. The specifics of the command and what the process will do will depend on the code that precedes this line.