如何在 Java (ID3) 中编辑 MP3 标签？

Question

Closed. This question is seeking recommendations for software libraries, tutorials, tools, books, or other off-site resources. It does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

我们不允许提出寻求软件库、教程、工具、书籍或其他场外资源推荐的问题。您可以编辑问题，以便用事实和引文来回答。

3 年前已关闭。

Answer 1

您应该查看一下库 jAudioTagger。下面是将自定义标签 (TXXX) 写入音频文件的示例：

/**
 * This will write a custom ID3 tag (TXXX).
 * This works only with MP3 files (Flac with ID3-Tag not tested).
 * @param description The description of the custom tag i.e. "catalognr"
 * There can only be one custom TXXX tag with that description in one MP3 file
 * @param text The actual text to be written into the new tag field
 * @return True if the tag has been properly written, false otherwise
 */

public boolean setCustomTag(AudioFile audioFile, String description, String text){
    FrameBodyTXXX txxxBody = new FrameBodyTXXX();
    txxxBody.setDescription(description);
    txxxBody.setText(text);

    // Get the tag from the audio file
    // If there is no ID3Tag create an ID3v2.3 tag
    Tag tag = audioFile.getTagOrCreateAndSetDefault();
    // If there is only a ID3v1 tag, copy data into new ID3v2.3 tag
    if(!(tag instanceof ID3v23Tag || tag instanceof ID3v24Tag)){
        Tag newTagV23 = null;
        if(tag instanceof ID3v1Tag){
            newTagV23 = new ID3v23Tag((ID3v1Tag)audioFile.getTag()); // Copy old tag data               
        }
        if(tag instanceof ID3v22Tag){
            newTagV23 = new ID3v23Tag((ID3v11Tag)audioFile.getTag()); // Copy old tag data              
        }           
        audioFile.setTag(newTagV23);
    }

    AbstractID3v2Frame frame = null;
    if(tag instanceof ID3v23Tag){
        frame = new ID3v23Frame("TXXX");
    }
    else if(tag instanceof ID3v24Tag){
        frame = new ID3v24Frame("TXXX");
    }

    frame.setBody(txxxBody);

    try {
        tag.addField(frame);
    } catch (FieldDataInvalidException e) {
        e.printStackTrace();
        return false;
    }

    try {
        audioFile.commit();
    } catch (CannotWriteException e) {
        e.printStackTrace();
        return false;
    }
    return true;
}

Answer 2

这个库：

http://javamusictag.sourceforge.net/

提供了一种读取和写入 id3 标签的方法。

Answer 3

因为我不想使用库，所以我最终自己编写了一个标签编辑器。仅适用于 ID3v1 标签。
完整代码

这里是它的工作原理：

因此，您所要做的就是将 128 字节写入文件末尾。以TAG开始，后面是30个字节的标题，30个字节的艺术家等。流派列表可以在此处。

    public void writeID3v1Tags(File file, String title, String artist, String album, String year, String comment, int genreId) { throws IOException {
        RandomAccessFile randomAccessFile = new RandomAccessFile(file, "r");
        FileChannel channel = randomAccessFile.getChannel();

        if (!hasID3v1Tag(channel)) {
            channel.position(channel.size());
            writeTag(channel, "TAG", 3);
        }

        writeTag(channel, title, 30);
        writeTag(channel, artist, 30);
        writeTag(channel, album, 30);
        writeTag(channel, year, 4);
        writeTag(channel, comment, 30);
        writeTag(channel, String.valueOf((char) genreId), 1);

        channel.close();
    }

    private void writeTag(FileChannel channel, String tagValue, int maxLength) throws IOException {
        int length = tagValue.length();
        if (length > maxLength) {
            tagValue = tagValue.substring(0, maxLength);
            length = tagValue.length();
        }

        ByteBuffer byteBuffer = ByteBuffer.wrap(tagValue.getBytes());
        channel.write(byteBuffer);

        byteBuffer = ByteBuffer.allocate(maxLength - length);
        channel.write(byteBuffer);
    }

    private boolean hasID3v1Tag(FileChannel channel) throws IOException {
        channel.position(channel.size() - 128);
        String prefix = readTag(channel, 3);
        return "TAG".equals(prefix);
    }

如果您想要更多标签（例如专辑封面、歌词等等），您需要使用 ID3v2。它的工作原理基本相同，但稍微复杂一点，更多信息请参见 https://id3.org/id3v2。 3.0