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

[Waitman Gobble]

On Mon, Dec 1, 2014 at 11:55 PM, Waitman Gobble <gobble.wa at gmail.com> wrote:

>
>
> 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
>


Is the most interesting data the [frame] and [subframe] info?
Is the qlp_coeff[], warmpup[] and parameter[] data for each frame/subframe
important?
-- 
Waitman Gobble
San Jose California USA
510-830-7975
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