[flac-dev] Modified metaflac add --output-json

Waitman Gobble gobble.wa at gmail.com
Mon Dec 1 23:55:35 PST 2014


On Mon, Dec 1, 2014 at 10:40 PM, Барт Гопник <bart.gopnik at gmail.com> wrote:

> Please help me solve the following problem:
>
> FLAC tools have a lots of warnings about non-subset files during
> encoding, but unfortunately don't have easy way to check/test existing
> FLAC stream for subset compliance.
>
> "flac -a" generates the big text file that has data about each frame
> and subframe. But looks like I need parser and statistics tools to
> answer on question about subset compliance of stream.
>
> Looks like "metaflac --show-min-blocksize --show-max-blocksize
> --show-sample-rate --show-bps" is more useful, but unfortunately there
> is no switches to show LPC filter order and Rice partition order in
> MataFLAC tool.
>
> It would be nice if anybody add switches to show more parameters like
> LPC filter order and Rice partition order and checking for subset
> compliance of stream to MetaFLAC tool.
>
> Using output in JSON format is very useful thing (bit thanks for
> that!), but user, unfortunately, still need statistics tools to answer
> on question about subset compliance of stream.
>
> Waitman, could you please implement switches to show LPC filter order
> and Rice partition order and checking for subset compliance of stream
> to MetaFLAC tool? It would be great help.
>
> 2014-12-01 10:20 GMT+03:00 Waitman Gobble <gobble.wa at gmail.com>:
> >
> > Hi,
> >
> > I modified the metaflac program to output in JSON format if the
> > --output-json switch is used, and made a simple Go program to demonstrate
> > use of the output.
> >
> > I imported the MIT licensed json-c library into src/share/json-c and put
> > headers in include/share/json-c.
> >
> > For example,
> > # metaflac --output-json --list myfile.flac
> >
> > example output: https://gist.github.com/waitman/847a8cae4a650a8898ee
> >
> > If the modified software is useful to anyone, the modifications are
> > available on github, I did a 'clean' import of head / 1.3.1 then pushed
> up
> > the changes, so maybe it's easier to see what was modified.
> >
> > https://github.com/waitman/flac
> >
> > https://github.com/waitman/goflac
> >
> >
> > --
> > Waitman Gobble
> > Los Altos California USA
> > 510-830-7975
> >
> > _______________________________________________
> > flac-dev mailing list
> > flac-dev at xiph.org
> > http://lists.xiph.org/mailman/listinfo/flac-dev
> >
>


Ok I will give it a try and see what I can come up with.

-- 
Waitman Gobble
Los Altos, California USA
510-830-7975
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