FLAC decoder testbench: Difference between revisions

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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" | {{tooltip|Skips|Skips files with a non-standard samplerate, plays 22050Hz}}
| style="background: orange;" | {{tooltip|Fails|Extreme distortion on playback of 20-bit file}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" colspan="7" | {{tooltip|Skips|Skips all high-res and multichannel files}}
| style="background: orange;" | {{tooltip|Fails|Extreme distortion on playback of 8-bit file, 12-bit file is played back too soft}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: orange;" | {{tooltip|Fails|20-bit file is played back too soft}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: red;"    | {{tooltip|Hangs|Files with large seektable are skipped (after long delay) and file with combined extreme metadata causes player to hang, requiring removal of USB stick}}
| style="background: orange;"    | {{tooltip|Fails|File with large application metadata block results playback of part of another file before playing the proper audio}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: orange;" | {{tooltip|Fails|Extreme distortion on playback of 20-bit file}}
| style="background: lime;" | {{tooltip|Plays|20-bit file is played back too soft like file 37, but is otherwise OK}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
|  
| class="mw-collapsible mw-collapsed" | Tested with system firmware 7.1.5-r1, model year 2018, testbench revision 7
|-
|-
! Cowon iAudio 7
! Cowon iAudio 7
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| -
| -
| class="mw-collapsible mw-collapsed" | Tested with revision 6, firmware version V5.15, dated 2020-04-24
| class="mw-collapsible mw-collapsed" | Tested with revision 6, firmware version V5.15, dated 2020-04-24
|-
! Mazda Connect
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | {{tooltip|Plays|After playing file 27, the unit does not automatically continue playback of the next track}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | Tested with revision 7, CX-90 MY2024
|-
|-
! Onkyo TX-NR686
! Onkyo TX-NR686
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| style="background: yellow;" colspan="2" | {{tooltip|Rejects|Does not play 4.0, 5.1 and 7.1 files but does play 5.0 and 6.1 as stereo and 3.0 as 3.1}}
| style="background: yellow;" colspan="2" | {{tooltip|Rejects|Does not play 4.0, 5.1 and 7.1 files but does play 5.0 and 6.1 as stereo and 3.0 as 3.1}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: red;"    | {{tooltip|Reboots|Crashes on file with 1000x repeating VORBISCOMMENT}}
| style="background: red;"    | {{tooltip|Unresp.|Becomes unresponsive on file with 1000x repeating VORBISCOMMENT}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| -
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | Tested with revision 6, firmware version 1071-2000-1070-0011.
| class="mw-collapsible mw-collapsed" | Tested with revision 6, firmware version 1071-4000-1070-0011.
|-
|-
! Panasonic TX-60CX750E
! Panasonic TX-60CX750E
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: orange;" | {{tooltip|Fails|Plays 20-bit and 24-bit file but with loud bursts of static}}
| style="background: orange;" | {{tooltip|Fails|Plays 20-bit and 24-bit file but with loud bursts of static}}
| -
| style="background: orange;" | {{tooltip|Fails|PLays, but with short ticks}}
| class="mw-collapsible mw-collapsed" |  Tested with Rockbox 3.15 (latest stable) on Sansa Fuze with testbench revision 6
| class="mw-collapsible mw-collapsed" |  Tested with Rockbox 3.15 (latest stable) on Sansa Fuze with testbench revision 7
|-
|-
! Samsung F5100WWB
! Samsung F5100WWB
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| class="mw-collapsible mw-collapsed" | Testbench revision 7
| class="mw-collapsible mw-collapsed" | Testbench revision 7
|-
|-
! colspan="16" | Software players
! colspan="20" | Software players
|-
|-
! AIMP 5.03 build 2398 (Windows)
! AIMP 5.03 build 2398 (Windows)
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | Testbench revision 7. File 03 still broken in ffplay version N-109368-gcc11afe502-20221206.
| class="mw-collapsible mw-collapsed" | Testbench revision 7. File 03 still broken in versions N-109368-gcc11afe502-20221206, 6.1-essentials_build-www.gyan.dev and 7.0-essentials_build-www.gyan.dev
|-
|-
! foobar2000 1.6.14 and 2.0 beta 7 [x86]
! foobar2000 1.6.14 and 2.0 beta 7 [x86]
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| class="mw-collapsible mw-collapsed" | testbench revision 5
| class="mw-collapsible mw-collapsed" | testbench revision 5
|-
|-
! JRiver Media Center
! JRiver Media Center (Windows 64; portable)
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | {{tooltip|Plays|lowers volume on 20 bit}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" | {{tooltip|Rejects|rejects (with error message) extremely large VORBISCOMMENT. Still plays the all-combined 55.}}
| style="background: lime;"   | {{tooltip|Plays|lowers volume on 20 bit}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| -
| class="mw-collapsible mw-collapsed" | Windows version 31.0.84 64-bit with testbench version 7.1. (Version 28.0.88 would reject number 54.)
| -
| -
| class="mw-collapsible mw-collapsed" | version 28.0.88 64-bit with testbench revision 5
|-
|-
! Mediamonkey 5
! Mediamonkey 5
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| class="mw-collapsible mw-collapsed" | SMPlayer-bundled version Redxii-SVN-r37955-6.2.0 (x86_64) (using ffmpeg N-87137-g6ccd32c367) with testbench revision 5 & files 60-64
| class="mw-collapsible mw-collapsed" | SMPlayer-bundled version Redxii-SVN-r37955-6.2.0 (x86_64) (using ffmpeg N-87137-g6ccd32c367) with testbench revision 5 & files 60-64
|-
|-
! mpv (Windows)
! mpv
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: red;"    | {{tooltip|Hangs|Hangs on files with 1000x repeating vorbiscomments}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;" | {{tooltip|Plays|Fixed during November 2022; version mpv-x86_64-20211031-git-4a80de9 (Windows) did stutter on 24-bit predictor overflow check}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | mpv-0.35.0-x86_64 for Windows, testbench revision 7; this build (November 14) fixes one more file than mpv-x86_64-20211031-git-4a80de9.
| class="mw-collapsible mw-collapsed" | Tested both mpv v0.38.0-633-ge509ec0a for Windows and v0.38.0-432-g112fa549be, testbench revision 7
|-
|-
! MusicBee 3.4.8033 (Windows; portable)
! MusicBee 3.4.8033 (Windows; portable)
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| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | XMPlay 3.8.5.42 with FLAC decoder revision 14 tested with testbench revision 7.
| class="mw-collapsible mw-collapsed" | XMPlay 3.8.5.42 with FLAC decoder revision 14 tested with testbench revision 7.
|-
! colspan="20" | Digital Audio Workstations (DAW)
|-
! Adobe Audition
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" | {{tooltip|Rejects|Rejects 12 bit file}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" | {{tooltip|Rejects|Rejects 20 bit file}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: orange;" | {{tooltip|Fails|Imports silence on file with no total number of samples set}}
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: lime;"  | Plays
| style="background: yellow;" | {{tooltip|Rejects|Rejects 20 bit file}}
| style="background: lime;"  | Plays
| class="mw-collapsible mw-collapsed" | Adobe Audition 1.5 with http://www.vuplayer.com/audition.php plugin, tested with testbench revision 7.
|-}
|-}
|-}
|-}
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! colspan="2" | Table legend
! colspan="2" | Table legend
|-
|-
| style="background: lime;"  | Plays  || all files in this category are played as intended, without glitches, changes etc.
| style="background: lime;"  | Plays  || all files in this category are played as intended, without glitches, changes etc.; changed volume tolerated (but indicated)
|-
|-
| style="background: yellow;" | Rejects || One or more files are rejected by the player, either by skipping the file or mentioning a message like: "file not supported"
| style="background: yellow;" | Rejects || One or more files are rejected by the player, either by skipping the file or mentioning a message like: "file not supported"

Latest revision as of 06:52, 3 September 2024

To further the use and development of FLAC, a testbench containing files with different parameters was constructed. The testbench consists of 64 FLAC files, each one having a different combination of characteristics (like samplerate, bitdepth and number of channels) and FLAC features (like blocksize, maximum partition order, maximum predictor order, maximum predictor precision etc.) However, all combinations fall within the so called subset: a limited set of FLAC parameters that fit in the frame header and are supposed to be 'streamable'. Please be aware that certain tested features (such as blocksize 16 or a samplerate of 38457Hz) are pretty much useless in day-to-day usage, and that failure to properly decode such a file is mostly of interest to developers than to users.

The testbench can be downloaded here (revision 7) and is maintained here. It is licensed under CC0 1.0.

Revision 6 adds four new files (60 to 63); files 1 through 59 are the same as in revision 5. For more information on which file tests what characteristics and features, please refer to the readme.txt file. Revision 7 replaces file 63 (which was faulty in revision 6) and adds file 64.

CDDA (44.1kHz/16-bit and less) High-res (96kHz/24-bit and more) Multichannel Metadata Various
Decoder Block­sizes Features Sample­rates Bit­depths Var. bl.size General Block­size Features Sample­rates Bit­depths General Features Missing Extreme MIME Mono Overfl. Zero esc. Remarks
Files in test set 1-10 11-18 19-21 22-23 24-27 28 29-30 31-32, 34 33-36 37 38-43 44 45-47 48-55 56-59 60 61-63 64
Albrecht DR 460 C Plays Plays Fails Fails Plays Skips Fails Skips Plays Fails Plays Skips Fails Skips
Android Fails Plays Plays Plays Skips Plays Plays Plays Plays Fails Skips Skips Plays Plays Plays Plays Fails Fails Android 13 with Google Play updates of 1st of Febuary 2023 on Samsung XCover 5
Chromecast Fails Plays Fails Plays Fails Plays Plays Plays Fails Plays Plays Plays Plays Plays Skips Plays Skips Plays Tested with system firmware 275994 and cast firmware 1.56.275994, testbench revision 7
Citroën DS5 Plays Plays Plays Fails Plays Plays Plays Plays Plays Fails Plays Plays Plays Fails Plays Plays Plays Plays Tested with system firmware 7.1.5-r1, model year 2018, testbench revision 7
Cowon iAudio 7 Freezes Plays Fails Rejects Rejects Rejects Rejects Rejects Rejects Rejects Freezes Rejects - - Plays Plays Rejects Plays Device doesn't support FLAC with bitdepth other than 16 and samplerate higher than 44.1 kHz. So actual features of files 45-54 and 62-63 cannot be tested. File 55 plays, but takes long time to start.
Ford SYNC Plays Plays Plays Skips Plays Plays Plays Plays Plays Skips Plays Plays Plays Skips Plays - - - Tested with revision 5, SYNC version 3.3, build 18201_PRODUCT
JVC KD-R871BT Fails Plays Fails Plays Rejects Plays Freezes Reboots Fails Rejects Rejects Rejects Reboots Rejects - - - Heavy stutter with blocksize 16. Stretches non-standard samplerates. Samplerates above 96kHz, variable blocksize files and multichannel files 'not supported'. Freezes on blocksize 16384 and 13456. 192kHz is played back very slow. Skips all multichannel, files with cover image, extreme metadata. Reboot loop on extreme large VORBISCOMMENT
Kenwood KMM-BT304 Fails Plays Rejects Plays Rejects Plays Rejects Rejects Rejects Plays Rejects Rejects Plays Reboots Plays - - - File 03 plays extremely noisily, barely recognizable. File 51 produces a "NO DEVICE" error and a reboot. File 54 produces a reboot with no message. These files produce a "NA FILE" error and the player skips to the next: 19 21 24 25 26 27 29 30 31 34 35 36 38 39 40 41 42 43 44 45 46 48 55. (firmware: te1706k.krm from 2020-03-05)
Lenco Xemio-240 Plays Plays Freezes Plays Rejects Plays Plays Plays Plays Fails - Tested with revision 6, firmware version V5.15, dated 2020-04-24
Mazda Connect Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Tested with revision 7, CX-90 MY2024
Onkyo TX-NR686 Fails Plays Rejects Plays Rejects Plays Plays Plays Rejects Plays Rejects Plays Unresp. Plays Plays Plays Plays Tested with revision 6, firmware version 1071-4000-1070-0011.
Panasonic TX-60CX750E Plays Plays Fails Plays Plays Plays Plays Plays Fails Plays Plays Fails Plays Fails Plays Plays Plays - Based on libFLAC 1.2.1, according to copyright notice. Firmware version 3.228, testbench revision 6
Pioneer BDP-150 Freezes Fails Fails Plays Freezes Plays Freezes Fails Fails Plays Freezes Freezes Freezes Plays Plays Fails - Firmware v1.08, testbench revision 6
Pioneer DEH-1900UB Skips Plays Skips Skips Skips Skips Plays Other Plays - - - Testbench revision 5
Rockbox Plays Plays Plays Plays Plays Plays Skips Skips Plays Plays Freezes Freezes Fails Plays Plays Fails Fails Tested with Rockbox 3.15 (latest stable) on Sansa Fuze with testbench revision 7
Samsung F5100WWB Crashes Fails Fails Plays Freezes Plays Skips Fails Fails Plays Freezes Plays Freezes Plays Plays Fails Plays Testbench revision 7
Sony BDP-1700 Freezes Fails Fails Plays Freezes Plays Freezes Fails Fails Plays Freezes Skips Plays Plays Plays Fails - Firmware m30.R.0527, testbench revision 6
Toyota Entune 3.0 Plays Plays Skips Plays Plays Plays Plays Plays Skips Plays Skips Skips Skips Skips Plays Plays Plays Plays Testbench revision 7
Software players
AIMP 5.03 build 2398 (Windows) Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Fails Testbench revision 7.
Album Player 2.114 (Windows) Plays Plays Plays Fails Plays Plays Plays Plays Plays Rejects Rejects Rejects Plays Plays Plays Plays Rejects Plays Testbench revision 7.
Amarok (Windows) Fails Plays Plays Crashes Plays Plays Fails Plays Skips Fails Plays Plays Plays Plays Plays Plays Fails - Amarok version 2.8.0 with testbench revision 5 and 60-63
Cog Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays - version 2169 (2169-gbf54c452) with testbench revision 6
DeaDBeeF 1.9.3 (Windows) Plays Plays Plays Plays Plays Plays Plays Plays Plays (not tested - ) Plays Plays Plays Plays Plays Plays Plays deadbeef 1.9.3 [static] [portable]. Testbench revision 7
Exaile (Windows) Plays Plays Plays Plays Fails Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays - First tested version 4.1.1 (GStreamer: 1.18.4) with testbench revision 5. Then updated with 4.1.2-beta1 (GStreamer: 1.18.5) for variable blocksize and 60-63
ffplay N-108161-gaaf6d85283-20220916 (Windows) Fails Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Testbench revision 7. File 03 still broken in versions N-109368-gcc11afe502-20221206, 6.1-essentials_build-www.gyan.dev and 7.0-essentials_build-www.gyan.dev
foobar2000 1.6.14 and 2.0 beta 7 [x86] Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Testbench revision 7
GoneMAD (Android) Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Crashes Plays Hangs Plays - - - testbench revision 5
JRiver Media Center (Windows 64; portable) Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Windows version 31.0.84 64-bit with testbench version 7.1. (Version 28.0.88 would reject number 54.)
Mediamonkey 5 Plays Plays Plays Skips Plays Plays Plays Plays Plays Silence Fails Plays Plays Plays Plays Fails Freezes Plays Updated with version 5.0.4.2690 testing files 60-64 and the ones 5.0.1.2433 failed (22) / froze (54-55) upon testing revision 5.
MacOS Skips Plays Plays Skips Skips Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Testbench revision 7, tested with Quicktime and Safari on MacOS 13
Mplayer (Windows) Plays Plays Plays Plays Plays Plays Plays Plays Plays Fails Plays Plays Plays Unresp. Plays Plays Fails Plays SMPlayer-bundled version Redxii-SVN-r37955-6.2.0 (x86_64) (using ffmpeg N-87137-g6ccd32c367) with testbench revision 5 & files 60-64
mpv Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Tested both mpv v0.38.0-633-ge509ec0a for Windows and v0.38.0-432-g112fa549be, testbench revision 7
MusicBee 3.4.8033 (Windows; portable) Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Testbench revision 7. Only tested on headphones, does left/right correctly on multichannel.
Quod Libet (Windows) Plays Plays Plays Plays Fails Plays Plays Plays Skips Plays Plays Plays Plays Plays Plays Plays Plays - version 4.4.0 (portable version) with testbench revision 5 and 4.5.0 (portable) with revision 6.
Resoniq 0.9.3 (portable, Windows) Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Fails? Plays Plays Plays Plays Plays Plays Plays Apparently uses FLAC 1.3.2. Testbench revision 7.
Spotify (Windows) Plays Plays Plays Skips Plays Plays Plays Plays Skips Skips Skips (?) Skips (?) Plays Rejects Plays Plays Plays - Spotify for Windows version 1.1.72.439.gc253025e, testbench revision 5; files 60-63 with version 1.1.83.956.gbe7ea9a7. Note, tested a stereo soundcard only (hence the question mark on multichannel).
VLC Plays Plays Plays Plays Fails Plays Plays Plays Plays Plays Plays Plays Plays Crashes Plays Plays Plays Plays VLC 3.0.16 on testbench revision 5
VLC 3.0.17.4 on files 60 to 63.
VLC 3.0.16 on file 64
VUPlayer 4.15 Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Testbench revision 7.
Winamp 5.8 Plays Plays Plays Freezes Plays Plays Plays Plays Freezes Plays Freezes Plays Plays Plays - - - Winamp 5.8 build 3660, testbench revision 5
Windows Media Player Plays Plays Plays Rejects Plays Plays Plays Plays Plays Rejects Plays Plays Plays Rejects Plays - - - Tested version 12.0.19041.1288 on testbench revision 5
XMPlay Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays Plays XMPlay 3.8.5.42 with FLAC decoder revision 14 tested with testbench revision 7.
Digital Audio Workstations (DAW)
Adobe Audition Plays Plays Plays Rejects Plays Plays Plays Plays Plays Rejects Plays Plays Fails Plays Plays Plays Rejects Plays Adobe Audition 1.5 with http://www.vuplayer.com/audition.php plugin, tested with testbench revision 7.
Table legend
Plays all files in this category are played as intended, without glitches, changes etc.; changed volume tolerated (but indicated)
Rejects One or more files are rejected by the player, either by skipping the file or mentioning a message like: "file not supported"
Fails One or more files are not played back as intended, for example by stuttering, garbling or playing at incorrect speed, or by never starting playing (though not skipping, freezing or rebooting)
Freezes On one or more files, the player crashes on decoding, leaving the unit inoperable until reboot, or the unit reboots by itself
The order of precedence is from bottom to top, so if one file freezes the player, one file is rejected and the other play fine, the table reads 'Freezes' for that category.
For the metadata tests, the (absence of) rendering of the metadata is not a criterium, simply whether its presence is an obstacle to playing
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