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A multicore FLAC encoder
GeorgeFP
post Nov 15 2009, 19:38
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Hi!

Maybe you already know fpMP3Enc, my multicore MP3 encoder...

This time, I'd like to introduce my multicore FLAC encoder. You can download the binaries here.

The package contains Win32 binaries for XP, Vista and 7, and Win64 binaries for Vista and 7.

The FLAC encoder is part of my "fpStream" project. The command-line to convert a WAV file to FLAC is as follows:

CODE
FPSTREAM.EXE readfile in -f <wav-filename> + wavin wav -s in + fpflacenc enc -s wav [-<compression level>] + writefile out -s enc -f <flac-filename>


The benchmarks so far:
I used the same test suite as in fpMP3Enc (Intel Q9450, 61 WAV files, about 5 hours playing time). The compression level was 5. The files were encoded one after the other, not in parallel.

- flac 1.2.1: 3 min 26 secs
- fpFLAC x64: 1 min 13 secs

So, the speedup was 2.8x. This is quite good if you consider that this version does not contain any SSE optimizations.

What's missing:
- SSE optimizations
- Metadata support (tags, seek points etc.)
- free of bugs

And some limitations:
- Win32 version: The total WAV file size sum must not exceed 400MiB(? - not sure).
- Win64 version: The total WAV file size sum must not exceed 400GiB.
- Input: WAV 16-bit stereo, 44.1kHz

Comments and feedback are welcome!
George
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flacflac
post Nov 17 2009, 18:58
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Hi GeorgeFP,

thank you for this exciting multicore implementation.

I have a couple of problems using it, perhaps you can help out a bit:

1) Using Win7 x64, most compression settings seem to crash the tool: only if I keep don't specify it or use -8 does it work, and there seems to be a difference in filesize between the two, so I am not sure what the default compression setting is - can you reproduce this problem? (it starts encoding but just doesn't finish)

2) The times I need to encode quickly are either during CD extraction using EAC or when I re-encode existing FLACs as I used lower compression setting before but would like to "upgrade". Can you please tell me whether you are planning to support TRANSCODING existing FLACs? Also, is the compression setting the only original FLAC argument the tool supports?

3) Is it possible to align commands with the original FLAC encoder to be able to simply substitute the current FLAC.exe with your development in EAC?

4) I add padding to my FLACs as I embed album art - unfortunately the padding command as specified in the FLAC documentation seems unsupported (http://flac.sourceforge.net/documentation_tools_flac.html) - implementation should not be a big problem, or am I mistaken? huh.gif

5) Is tag support a possibility in the near future?

Again, thank you! smile.gif
ff
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GeorgeFP
post Nov 17 2009, 22:21
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Thanks for your feedback!

QUOTE
1) Using Win7 x64, most compression settings seem to crash the tool: only if I keep don't specify it or use -8 does it work, and there seems to be a difference in filesize between the two, so I am not sure what the default compression setting is - can you reproduce this problem? (it starts encoding but just doesn't finish)

I could reproduce the problem with "-1" and "-4". Both modes use loose mid-stereo which requires special handling. I thought, I made it right, but obviously not. It will be resolved in the next release.
BTW, the default is "-5".

QUOTE
2) The times I need to encode quickly are either during CD extraction using EAC or when I re-encode existing FLACs as I used lower compression setting before but would like to "upgrade". Can you please tell me whether you are planning to support TRANSCODING existing FLACs? Also, is the compression setting the only original FLAC argument the tool supports?

Transcoding is already possible:
CODE
FPSTREAM readfile in -f <old-flac-filename> + flacdec dec -s in + fpflacenc enc -s dec + writefile out -s enc -f <new-flac-filename>


Another option that my tool supports is "--lax" but I don't know what it does. It was easy to port it from the original FLAC code, so I did it.

QUOTE
3) Is it possible to align commands with the original FLAC encoder to be able to simply substitute the current FLAC.exe with your development in EAC?

Yes. I also plan to provide something like a "fpFLAC.exe" with the same command-line options as the original FLAC - for simple encodings.

QUOTE
4) I add padding to my FLACs as I embed album art - unfortunately the padding command as specified in the FLAC documentation seems unsupported (http://flac.sourceforge.net/documentation_tools_flac.html) - implementation should not be a big problem, or am I mistaken? huh.gif

This is not a problem, the code is already written, only the cmd-line option is missing. Which tool are you using to embed the album art? I'll test it with that.

QUOTE
5) Is tag support a possibility in the near future?

Yes. In the next release you should be able to set title, artist, album, year, track and genre. Just tell me if you need more.

Thanks again for your feedback!
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Cokemonkey11
post Nov 18 2009, 03:58
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QUOTE (GeorgeFP @ Nov 17 2009, 13:21) *
Yes. In the next release you should be able to set title, artist, album, year, track and genre. Just tell me if you need more.


Is album art possible to be defined as a tag?


--------------------
Sounds come and go, but music lives forever.
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GeorgeFP
post Nov 18 2009, 06:59
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QUOTE (Cokemonkey11 @ Nov 18 2009, 03:58) *
Is album art possible to be defined as a tag?

The option is "--picture=SPECIFICATION" in the original FLAC. I will add it.
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Cokemonkey11
post Nov 18 2009, 07:09
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QUOTE (GeorgeFP @ Nov 17 2009, 21:59) *
QUOTE (Cokemonkey11 @ Nov 18 2009, 03:58) *
Is album art possible to be defined as a tag?

The option is "--picture=SPECIFICATION" in the original FLAC. I will add it.


I meant in relation to my quoted post. You mentioned arist, album, title.. etc

Album Art should be one of those tags, unless I'm incorrect.


--------------------
Sounds come and go, but music lives forever.
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GeorgeFP
post Nov 18 2009, 13:25
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QUOTE (Cokemonkey11 @ Nov 18 2009, 07:09) *
QUOTE (GeorgeFP @ Nov 17 2009, 21:59) *
QUOTE (Cokemonkey11 @ Nov 18 2009, 03:58) *
Is album art possible to be defined as a tag?

The option is "--picture=SPECIFICATION" in the original FLAC. I will add it.


I meant in relation to my quoted post. You mentioned arist, album, title.. etc

Album Art should be one of those tags, unless I'm incorrect.

When I add the "-T" option it will be possible to write "-T ALBUMART=pic.png". AFAIK, only the filename will be saved then, not the image data.
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Posts in this topic
- GeorgeFP   A multicore FLAC encoder   Nov 15 2009, 19:38
- - Cokemonkey11   Good stuff, can't wait for the GUI.   Nov 15 2009, 21:49
- - punkrockdude   Yeah! I love that your make multi core applica...   Nov 15 2009, 23:03
- - flacflac   Wow, this is very interesting. The speed-gain you...   Nov 16 2009, 11:14
|- - GeorgeFP   QUOTE (flacflac @ Nov 16 2009, 11:14) Wow...   Nov 16 2009, 13:34
- - Maurits   Is there any chance that these improvements can be...   Nov 16 2009, 12:39
|- - GeorgeFP   QUOTE (Maurits @ Nov 16 2009, 12:39) Is t...   Nov 16 2009, 13:56
- - hlloyge   It would be interesting to compare it to CUDA FLAC...   Nov 16 2009, 12:55
|- - GeorgeFP   QUOTE (hlloyge @ Nov 16 2009, 12:55) It w...   Nov 16 2009, 20:51
- - Lucho   QUOTE (GeorgeFP @ Nov 15 2009, 20:38) COD...   Nov 16 2009, 16:12
|- - GeorgeFP   QUOTE (Lucho @ Nov 16 2009, 16:12) This i...   Nov 16 2009, 17:33
- - GeorgeFP   OK, I've uploaded a new version. The link is t...   Nov 16 2009, 18:25
- - flacflac   Hi GeorgeFP, thank you for this exciting multicor...   Nov 17 2009, 18:58
|- - GeorgeFP   Thanks for your feedback! QUOTE 1) Using Win7...   Nov 17 2009, 22:21
|- - flacflac   Hi George, thank you for that detailed reply! ...   Nov 18 2009, 03:10
||- - GeorgeFP   QUOTE (flacflac @ Nov 18 2009, 03:10) Awe...   Nov 18 2009, 07:05
|- - Cokemonkey11   QUOTE (GeorgeFP @ Nov 17 2009, 13:21) Yes...   Nov 18 2009, 03:58
|- - GeorgeFP   QUOTE (Cokemonkey11 @ Nov 18 2009, 03:58)...   Nov 18 2009, 06:59
|- - Cokemonkey11   QUOTE (GeorgeFP @ Nov 17 2009, 21:59) QUO...   Nov 18 2009, 07:09
|- - GeorgeFP   QUOTE (Cokemonkey11 @ Nov 18 2009, 07:09)...   Nov 18 2009, 13:25
- - GeorgeFP   I have uploaded a new version. The release notes ...   Nov 18 2009, 19:52
|- - flacflac   QUOTE (GeorgeFP @ Nov 18 2009, 13:52) I h...   Nov 19 2009, 09:17
|- - GeorgeFP   QUOTE (flacflac @ Nov 19 2009, 09:17) 1) ...   Nov 19 2009, 10:10
- - GeorgeFP   Here is a screenshot how to configure EAC to use f...   Nov 23 2009, 10:34
|- - howesz   For ease of integration with EAC (i.e. so you can ...   Dec 2 2009, 03:14
||- - GeorgeFP   QUOTE (howesz @ Dec 2 2009, 03:14) How ha...   Dec 4 2009, 21:37
|- - jamesbaud   QUOTE (GeorgeFP @ Nov 23 2009, 01:34) Her...   Dec 2 2009, 11:00
|- - JacksonGrey   QUOTE (jamesbaud @ Dec 2 2009, 10:00) Cou...   Dec 2 2009, 13:40
|- - GeorgeFP   QUOTE (jamesbaud @ Dec 2 2009, 11:00) Cou...   Dec 3 2009, 09:50
|- - gottkaiser   Wow, I'm impressed. Thanks for all the work ef...   Dec 3 2009, 12:26
- - Wombat   You may use it together with metaflac with linking...   Dec 2 2009, 03:36
- - Chinch   interesting project you have going here. i know th...   Dec 2 2009, 06:25
|- - GeorgeFP   QUOTE (Chinch @ Dec 2 2009, 06:25) 1) the...   Dec 4 2009, 22:02
- - Chinch   Alright! I'm impressed. I have to say that...   Dec 2 2009, 07:23
- - Glenda   Such a nice upgrade to EAC, thankyou   Dec 3 2009, 14:14
|- - Glenda   QUOTE (Glenda @ Dec 3 2009, 09:14) Such a...   Dec 3 2009, 14:22
- - Glenda   QUOTE (Glenda @ Dec 3 2009, 09:22) QUOTE ...   Dec 3 2009, 14:36
- - GeorgeFP   Hi! The new version can be downloaded here: ...   Dec 4 2009, 12:27
|- - gottkaiser   QUOTE (GeorgeFP @ Dec 4 2009, 12:27) To u...   Dec 4 2009, 13:08
||- - jamesbaud   QUOTE (gottkaiser @ Dec 4 2009, 04:08) QU...   Dec 5 2009, 14:32
|- - johnsonlam   QUOTE (GeorgeFP @ Dec 4 2009, 19:27) 64-B...   Dec 4 2009, 13:25
|- - GeorgeFP   QUOTE (johnsonlam @ Dec 4 2009, 13:25) QU...   Dec 4 2009, 14:03
- - GeorgeFP   And here is the screenshot for foobar2000: You s...   Dec 4 2009, 12:47
- - greynol   Considering that EAC only passes one file at a tim...   Dec 4 2009, 18:12
|- - Gregory S. Chudov   This encoder is useful, because it can use all the...   Dec 4 2009, 20:04
|- - GeorgeFP   QUOTE (greynol @ Dec 4 2009, 18:12) Consi...   Dec 4 2009, 22:21
- - pdq   So are you saying that it is pointless to use this...   Dec 4 2009, 19:51
- - greynol   I know I'm usually a sarcastic cynic, but this...   Dec 4 2009, 19:57
- - greynol   So it's a departure from this? http://www.hydr...   Dec 4 2009, 20:10
- - pdq   Wouldn't the time to compress a single image f...   Dec 4 2009, 20:20
- - greynol   EAC doesn't start encoding with an external co...   Dec 4 2009, 20:36
- - pdq   I'm just saying that the time to encode after ...   Dec 4 2009, 21:25
- - greynol   On my system it still takes longer to encode @ -8 ...   Dec 4 2009, 21:29
- - greynol   Perhaps you could have made it a little more clear...   Dec 4 2009, 22:29
|- - GeorgeFP   QUOTE (greynol @ Dec 4 2009, 22:29) Perha...   Dec 4 2009, 22:43
- - greynol   Well no. Why didn't you provide that link in ...   Dec 4 2009, 22:50
- - GeorgeFP   A new version with two bug fixes is available for ...   Dec 7 2009, 19:55
- - JacksonGrey   I keep getting an error that a number of files ...   Dec 8 2009, 00:59
|- - GeorgeFP   QUOTE (JacksonGrey @ Dec 8 2009, 00:59) I...   Dec 8 2009, 07:14
- - GeorgeFP   I've found the problem with the installer: Sev...   Dec 8 2009, 13:12
- - greynol   I'd love to see this done with metaflac so tha...   Dec 8 2009, 17:34
- - NuSkooler   I cannot wait for this to be ready for production ...   Dec 23 2009, 18:16
|- - GeorgeFP   QUOTE (NuSkooler @ Dec 23 2009, 18:16) I ...   Dec 24 2009, 12:47
|- - Bylie   QUOTE (GeorgeFP @ Dec 24 2009, 12:47) Wel...   Dec 24 2009, 14:59
||- - GeorgeFP   QUOTE (Bylie @ Dec 24 2009, 14:59) But, p...   Dec 25 2009, 13:33
||- - Bylie   QUOTE (GeorgeFP @ Dec 25 2009, 13:33) Bel...   Dec 25 2009, 18:43
||- - GeorgeFP   QUOTE (Bylie @ Dec 25 2009, 18:43) I real...   Dec 25 2009, 22:11
|- - _mē_   QUOTE (GeorgeFP @ Dec 24 2009, 12:47) QUO...   Dec 25 2009, 00:56
|- - NuSkooler   QUOTE (_mē_ @ Dec 24 2009, 16:56) 1. For ...   Dec 25 2009, 01:03
||- - GeorgeFP   QUOTE (NuSkooler @ Dec 25 2009, 01:03) QU...   Dec 25 2009, 20:51
||- - NuSkooler   QUOTE (GeorgeFP @ Dec 25 2009, 12:51) My ...   Dec 26 2009, 03:24
||- - GeorgeFP   QUOTE (NuSkooler @ Dec 26 2009, 03:24) Th...   Dec 26 2009, 09:27
||- - NuSkooler   QUOTE (GeorgeFP @ Dec 26 2009, 01:27) Ano...   Dec 26 2009, 17:17
||- - GeorgeFP   QUOTE (NuSkooler @ Dec 26 2009, 17:17) QU...   Dec 26 2009, 20:05
|- - flacflac   QUOTE (_mē_ @ Dec 24 2009, 18:56) Well, t...   Feb 6 2010, 12:11
|- - GeorgeFP   QUOTE (flacflac @ Feb 6 2010, 12:11) Is i...   Feb 6 2010, 19:04
- - Gregory S. Chudov   Agree. Josh, if you are interested, i'm ready ...   Dec 24 2009, 15:20
|- - skamp   QUOTE (Gregory S. Chudov @ Dec 24 2009, 15...   Dec 24 2009, 16:30
- - Qest   It would be outstanding if the defacto flac tools ...   Dec 25 2009, 01:02
- - Zarggg   Will this program yield any benefit to a (single c...   Dec 25 2009, 05:02
|- - GeorgeFP   QUOTE (Zarggg @ Dec 25 2009, 05:02) Will ...   Dec 25 2009, 22:20
|- - Fandango   QUOTE (GeorgeFP @ Dec 25 2009, 22:20) QUO...   Dec 25 2009, 23:05
- - Fandango   Uhm, I would happily replace all single-threaded c...   Dec 25 2009, 19:29
- - skamp   Encoding two files at once on my Intel Atom with h...   Dec 25 2009, 22:44
- - GeorgeFP   BTW, I've decided to add some missing command-...   Dec 26 2009, 20:18
|- - howesz   QUOTE (GeorgeFP @ Dec 26 2009, 14:18) BTW...   Jul 10 2010, 02:24
|- - Glenda   QUOTE (howesz @ Jul 9 2010, 21:24) QUOTE ...   Aug 7 2010, 09:36
||- - GeorgeFP   QUOTE (Glenda @ Aug 7 2010, 09:36) Same h...   Aug 29 2010, 11:14
|- - GeorgeFP   QUOTE (howesz @ Jul 10 2010, 03:24) QUOTE...   Sep 3 2010, 11:11
|- - gimp   QUOTE (GeorgeFP @ Sep 3 2010, 02:11) QUOT...   Sep 16 2010, 22:09
|- - GeorgeFP   QUOTE (gimp @ Sep 16 2010, 23:09) Removed...   Sep 17 2010, 07:16
- - Meeko   So I'm guessing a multicore FLAC encoder would...   Dec 28 2009, 13:52
- - Fandango   You are right, multi-threaded encoders are for fas...   Dec 28 2009, 15:22
- - clintb   Any chance someone could whip up a batch file for ...   Jan 29 2010, 16:06
|- - Synthetic Soul   QUOTE (clintb @ Jan 29 2010, 15:06) Any c...   Feb 6 2010, 14:29
- - GeorgeFP   An updated version is now available on my site. I...   Sep 19 2010, 09:05
- - Glenda   The encoder flags errors on every attempt with EAC...   Jan 17 2011, 08:47
|- - GeorgeFP   QUOTE (Glenda @ Jan 17 2011, 08:47) The e...   Jan 17 2011, 18:48
|- - Glenda   QUOTE (GeorgeFP @ Jan 17 2011, 12:48) QUO...   Jan 18 2011, 11:02
- - GeorgeFP   It seems that the libraries are of mixed type (32 ...   Jan 18 2011, 12:47
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