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waldrand

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Posts posted by waldrand

  1. What I try to to is to modify the ID3 meta data of a mp3 file.

    That means I have to add same bytes before the mp3 data.

    I wrote it allready, but it takes time and okkupies memory at large file.

    I read the whole file added the bytes at the start and replaced the file.

    I am looking for a better solution.

  2. If I use the Vi's "get file size" "set file size" and "set file position" I can increase or shorten the filesize.

    Changes are only at the end of the file.

    Is there any posibillity to do this at the startposition of a file?

    It means, can I add or delete (not replace) bytes at the start position?

    The size would become longer or shorter.

    This makes sence for large files.

    I am looking for adding or deleting an header to a large file without reading the whole file.

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