java使用Xugler实现MXF到FLV

2 周，2 日 Questions & Answers 725

我正在尝试使用Xugler将mxf文件转换为flv类型

但我有个例外

2011-09-23 11:48:06,328 [main] WARN  com.xuggle.xuggler - Got error: picture is not of the same PixelType as this Coder expected (../../../../../../../csrc/com/xuggle/xuggler/StreamCoder.cpp:1204)

我的代码很简单，看起来是这样的-

public static void main(String[] args) {

    // create a media reader
    IMediaReader mediaReader = ToolFactory.makeReader(inputFilename);

    // create a media writer
    IMediaWriter mediaWriter = ToolFactory.makeWriter(outputFilename,
            mediaReader);

    // add a writer to the reader, to create the output file
    mediaReader.addListener(mediaWriter);

    // create a media viewer with stats enabled
    // IMediaViewer mediaViewer = ToolFactory.makeViewer(true);

    // add a viewer to the reader, to see the decoded media
    // mediaReader.addListener(mediaViewer);

    // read and decode packets from the source file and
    // and dispatch decoded audio and video to the writer
    while (mediaReader.readPacket() == null)
        ;

}

它适用于MP4和MOV类型的文件

有什么建议吗

因为没有人回复，我也找不到任何解决方案，所以我决定使用Java中的命令参数

我试过了，但我发现了一些错误-

public class FfmpegCommandTest {

public static void main(String args[]) {

    String commandStr[] = { "ffmpeg -f dv -i \"C:\temp\0001NY.MXF\" -ar 44100 -v codec libx264 -maxrate 2000k -bufsize 2000k -vf scale=\"iw/2:ih/2\" -strict experimental -vstats_file \"C:\nasir\progress.txt\" \"C:\temp\0001NYoutput-short1.mov\"" };
    // print the command to execute
    for (String x : commandStr) {
        System.out.print(x + " ");
    }

    // execute ffmpeg with the command generated by the previous segment
    try {
        ProcessBuilder proc =  new ProcessBuilder(commandStr);
        proc.directory(new File("C:\temp"));
        //proc.command(commandStr);
        proc.start();

    } catch (IOException ex) {          
        ex.getMessage();
        ex.printStackTrace();
    }
}
}

错误是

    The system cannot find the file specified
    at java.lang.ProcessBuilder.start(Unknown Source)
    at com.xuggle.xuggler.demos.FfmpegCommandTest.main(FfmpegCommandTest.java:21)
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(Unknown Source)
    at java.lang.ProcessImpl.start(Unknown Source)

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java使用Xugler实现MXF到FLV

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