Re: [LAD] How do I write meta data into a wave file? (Command line tools?)

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To: <linux-audio-dev@...>
Date: Saturday, May 4, 2013 - 2:29 am

On Sat, May 04, 2013 at 03:01:11AM +0200, Nils Gey wrote:

Nils and all,

Wikipedia says:

Metadata

As a derivative of RIFF, WAV files can be tagged with
metadata in the INFO chunk. In addition, WAV files can embed
Extensible Metadata Platform (XMP) data. Applications may
not handle this extra information or may expect to see it in
a particular place. Although the RIFF specification requires
that applications ignore chunks they do not recognize, some
applications are confused by additional chunks.[citation
needed]

Is it possible these "standards" could be among those the
courts humbly bid that Microsoft open to the uncouth gaze of
slobbering masses? (Providing court-ordered data on file
formats used internally is an area that seems to attract
the most lackadaisical and error prone MS employees.)

Otherwise, there is plenty of code to study.

This parser reveals what data structures it expects...
if you speak C.

https://metacpan.org/source/AGRUNDMA/Audio-Scan-0.93/src/wav.c

Here is a metadata parser/writer for diverse file types.

https://metacpan.org/module/EXIFTOOL/Image-ExifTool-9.27/exiftool

HTH,

Joel

>

--
Joel Roth
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Messages in current thread:
Re: [LAD] How do I write meta data into a wave file? (Comman..., Erik de Castro Lopo, (Sat May 4, 4:04 am)
Re: [LAD] How do I write meta data into a wave file? (Comman..., Joel Roth, (Sat May 4, 2:29 am)