问Mpeg1video -> ?)

EN

 * This method converts a file to Ogg Theora video using ffmpeg.
 * 
 * @param f
 *            The file to encode. (Assumes that the file has a .mpeg
 *            extension. If the file doesn't have this, the method will
 *            fail.) 
 * @param nice The niceness of the created ffmpeg
 *            priority.
 * @return converter The process that represents ffmpeg working on the file.
 */
private Process encodeFileAsTheora(File f, int nice) {
    Process converter = null;
    try {
        String targetFileName = f.getAbsolutePath()
                .replace(".mpeg", ".ogg");
        // mLogger.log(Level.INFO,
        // "Now attempting to convert " + f.getAbsolutePath());
        String[] ffmpegCommand = { "nice", "-n", Integer.toString(nice),
                "ffmpeg", "-i", f.getAbsolutePath(), targetFileName };
        converter = Runtime.getRuntime().exec(ffmpegCommand);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return converter;
}