fingerprint files (.ffp) checksums

[sir-twosheds]

Would it be possible to add these to multipar?
I always struggle to verify files using .ffp

[Yutaka-Sawada]

Would it be possible to add these to multipar?

Technically it's possible to support ffp.txt or .ffp, because it stores MD5 checksum on simple text file. The difference is which data to calculate MD5. FLAC seems to protect audio data portion only. So, sfv_md5.exe needs to recognize FLAC file format. Then, it will search STREAMINFO block in each FLAC file.

I downloaded FLAC command line tools and format RFC 9639. If it's not so difficult to implement, I will try.

I always struggle to verify files using .ffp

I don't know how people use .ffp files. Is the usage same as md5sum files ? From some downloaded ffp.txt samples on the internet, the content looks like below format.

music1.flac:MD5checksum
music2.flac:MD5checksum
music3.flac:MD5checksum

Then, these music files and something.ffp may exist in a same folder. When you Drag & Drop the something.ffp on MultiPar, is it good that their state are listed on the Verify window ?

[Yutaka-Sawada]

From reading RFC 9639, FLAC fingerprint (ffp) is a MD5 checksum of decoded audio data. A .flac file contains encoded audio data. To calculate MD5 of decoded audio data, it needs to decode the encoded data in the .flac file.

Though FLAC is open source, it's difficult to add FLAC decoder in my sfv_md5.exe. So, the best solution is just calling FLAC command-line tool flac.exe to test all .flac files on a FLAC fingerprint (ffp). You may need to download FLAC tool and put flac.exe in MultiPar folder. The behavior would be same as FLAC Frontend. Then, I'm not sure the usage is good for you or not. If this method is ok, I will modify my sfv_md5.exe to call flac.exe to verify .flac files.

[JohnLGalt]

@Yutaka-Sawada If we have Flac CLI executable already downloaded for another app, would it work just fine if that location where it is located is a part of the PATH variable, or does MultiPar prefer it to be in the local folder?

[Yutaka-Sawada]

would it work just fine if that location where it is located is a part of the PATH variable, or does MultiPar prefer it to be in the local folder?

This is a good idea. Thanks John L. Galt for the suggestion. To test FLAC files, sfv_md5.exe requires flac.exe and libFLAC.dll. You may put them in a same directory as sfv_md5.exe. Or else, they must exist in a PATH variable directory. Whichever location is ok.

I made samples to test verification of FLAC files. FLAC Fingerprint files are supported as same as .SFV or .MD5 files. Their file extension must be ".ffp" or end with "ffp.txt". I put the sample package (MultiPar_sample_2025-11-19.zip) in "MultiPar_sample" folder on OneDrive. You may test the behavior.

Because I don't know well about FLAC Fingerprint files, it may not recognize all kind of file formats. If there is a problem of example file, let me know. If there is no problem, I will add this feature officially.

[Yutaka-Sawada]

I updated sample sfv_md5.exe. When there are many FLAC files, you may cancel creation or verification at each file. It supports filename with space. I add FLAC usage in command-line manual. I put the sample package (MultiPar_sample_2025-11-26.zip) in "MultiPar_sample" folder on OneDrive. If there is a problem, let me know.

[sir-twosheds]

Sorry, I am not technical in any way. I requested the inclusion of .ffp file verification as the app I currently use is way out of date. Multipar already seems to cover pretty much every other verification file I have come across. I did try to use the shared files but I didn't have any joy

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On Wed, 26 Nov 2025 at 03:04, Yutaka Sawada ***@***.***> wrote: I updated sample sfv_md5.exe. When there are many FLAC files, you may cancel creation or verification at each file. It supports filename with space. I add FLAC usage in command-line manual. I put the sample package (MultiPar_sample_2025-11-26.zip) in "MultiPar_sample" folder on OneDrive <https://1drv.ms/f/c/8eb5bd32c534a1d1/QtGhNMUyvbUggI7HAQAAAAAABdlB3LO9PSHL-A>. If there is a problem, let me know. — Reply to this email directly, view it on GitHub <#157 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/B2H47QLFWMUVC23STTLO6TT36UKC7AVCNFSM6AAAAACMHZL4EKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMBYGEZDQNA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[Yutaka-Sawada]

From the sample package (MultiPar_sample_2025-11-26.zip), you extract 4 files (MultiPar.exe,sfv_md5.exe, flac.exe, and libFLAC.dll) and put them in MultiPar folder. If there is a problem, post the detail. Example of the .ffp file or screen-shop would be helpful.

Though I tried to decode and calclate MD5 for flac data by using libfoxenflac, the process was 5 times slower than using flac.exe. libFLAC seems to use SIMD internally. So, sfv_md5.exe calls flac.exe for testing FLAC files. When there is no flac.exe, MultiPar shows Unknown status at verifying with a .ffp file.

[sir-twosheds]

Ok, I'll check it out.

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On Fri, 28 Nov 2025 at 02:06, Yutaka Sawada ***@***.***> wrote: From the sample package (MultiPar_sample_2025-11-26.zip), you extract 4 files (MultiPar.exe,sfv_md5.exe, flac.exe, and libFLAC.dll) and put them in MultiPar folder. If there is a problem, post the detail. Example of the .ffp file or screen-shop would be helpful. Though I tried to decode and calclate MD5 for flac data by using libfoxenflac <https://github.com/astoeckel/libfoxenflac>, the process was 5 times slower than using flac.exe. libFLAC seems to use SIMD internally. So, sfv_md5.exe calls flac.exe for testing FLAC files. When there is no flac.exe, MultiPar shows Unknown status at verifying with a .ffp file. — Reply to this email directly, view it on GitHub <#157 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/B2H47QOX4LEHOOA7SPXN42T366UY5AVCNFSM6AAAAACMHZL4EKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJQGE2TKMA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[sir-twosheds]

Woohoo, that works. Arigato Gozaimasu

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On Mon, 1 Dec 2025 at 10:44, sir dausied ***@***.***> wrote: Ok, I'll check it out. On Fri, 28 Nov 2025 at 02:06, Yutaka Sawada ***@***.***> wrote: > From the sample package (MultiPar_sample_2025-11-26.zip), you extract 4 > files (MultiPar.exe,sfv_md5.exe, flac.exe, and libFLAC.dll) and put them > in MultiPar folder. If there is a problem, post the detail. Example of the > .ffp file or screen-shop would be helpful. > > Though I tried to decode and calclate MD5 for flac data by using > libfoxenflac <https://github.com/astoeckel/libfoxenflac>, the process > was 5 times slower than using flac.exe. libFLAC seems to use SIMD > internally. So, sfv_md5.exe calls flac.exe for testing FLAC files. When > there is no flac.exe, MultiPar shows Unknown status at verifying with a > .ffp file. > > — > Reply to this email directly, view it on GitHub > <#157 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/B2H47QOX4LEHOOA7SPXN42T366UY5AVCNFSM6AAAAACMHZL4EKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJQGE2TKMA> > . > You are receiving this because you authored the thread.Message ID: > ***@***.*** > com> >

[Yutaka-Sawada]

Thank you for tests. I uploaded the new .EXE files (MultiPar.exe and sfv_md5.exe) on github's alpha version directory. If someone want to use FLAC Fingerprint on MultiPar, he needs to put flac.exe and libFLAC.dll in the MultiPar folder or somewhere PATH variable environment (such like Windows/System32). He may download them from FLAC official download page.

[sir-twosheds]

Thank you!

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On Wed, 3 Dec 2025 at 01:41, Yutaka Sawada ***@***.***> wrote: Thank you for tests. I uploaded the new .EXE files (MultiPar.exe and sfv_md5.exe) on github's alpha version directory <https://github.com/Yutaka-Sawada/MultiPar/tree/master/alpha>. If someone want to use FLAC Fingerprint on MultiPar, he needs to put flac.exe and libFLAC.dll in the MultiPar folder or somewhere PATH variable environment (such like Windows/System32). He may download them from FLAC official download page <https://xiph.org/flac/download.html>. — Reply to this email directly, view it on GitHub <#157 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/B2H47QMWXRK6HHR4CIBEVCD37Y5UPAVCNFSM6AAAAACMHZL4EKVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMJUGE4TSMQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>