This is some code from Matt Westcott that I have lying around.
It is libayemu with PSG file support (PSG files can be written
by FUSE)

The library (newlib) is in libayemu/libayemu.a
ayconv gives an example of usage.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[unknown]                  477     925  51.6% -lh6- 17e1 Oct  8  2009 ayconv/ayconv/ayconv.c
[unknown]                   77      92  83.7% -lh6- 874b Oct  8  2009 ayconv/ayconv/bootstrap
[unknown]                  432     995  43.4% -lh6- e556 Oct  8  2009 ayconv/ayconv/configure.ac
[unknown]                 6850   17992  38.1% -lh6- 4902 Oct  8  2009 ayconv/ayconv/copying
[unknown]                 3602    3853  93.5% -lh6- b1f1 Oct  8  2009 ayconv/ayconv/cybrev.vtx
[unknown]                39741  264144  15.0% -lh6- 9b62 Oct  8  2009 ayconv/ayconv/dancing_queen.psg
[unknown]                 3586    9236  38.8% -lh6- 07ae Oct  8  2009 ayconv/ayconv/install
[unknown]                  163     273  59.7% -lh6- b95c Oct  8  2009 ayconv/ayconv/Makefile.am
[unknown]               446520 1261352  35.4% -lh6- 7954 Oct  9  2009 ayconv/c/ayconv
[unknown]                39741  264144  15.0% -lh6- 9b62 Oct  8  2009 ayconv/c/dancing_queen.psg
[unknown]                  104     190  54.7% -lh6- 48b9 Oct  9  2009 ayconv/compile
[unknown]                 4498    5124  87.8% -lh6- 3439 Oct  9  2009 ayconv/compile.info
[unknown]                 4486   14000  32.0% -lh6- 3415 Oct  8  2009 ayconv/libayemu/ay8912.c
[unknown]                 1128    2406  46.9% -lh6- 1a40 Oct  9  2009 ayconv/libayemu/include/ayemu.h
[unknown]                 1523    4439  34.3% -lh6- f70f Oct  9  2009 ayconv/libayemu/include/ayemu_8912.h
[unknown]                  801    2715  29.5% -lh6- 5a0f Oct  9  2009 ayconv/libayemu/include/ayemu_player.h
[unknown]                  553    1050  52.7% -lh6- efd4 Oct  9  2009 ayconv/libayemu/include/ayemu_psgfile.h
[unknown]                  773    1894  40.8% -lh6- ba48 Oct  9  2009 ayconv/libayemu/include/ayemu_stcfile.h
[unknown]                 1082    2496  43.3% -lh6- fad1 Oct  9  2009 ayconv/libayemu/include/ayemu_vtxfile.h
[unknown]                  169     310  54.5% -lh6- 2295 Oct  9  2009 ayconv/libayemu/include/Makefile.am
[unknown]                 2249    6648  33.8% -lh6- a96f Oct  8  2009 ayconv/libayemu/lh5dec.c
[unknown]                13850   44272  31.3% -lh6- 5abf Oct  9  2009 ayconv/libayemu/libayemu.a
[unknown]                  231     339  68.1% -lh6- 976f Oct  8  2009 ayconv/libayemu/Makefile.am
[unknown]                 1139    4925  23.1% -lh6- c3b8 Oct  8  2009 ayconv/libayemu/player.c
[unknown]                  739    1706  43.3% -lh6- 5d94 Oct  8  2009 ayconv/libayemu/psgfile.c
[unknown]                 3210   10452  30.7% -lh6- 54e9 Oct  8  2009 ayconv/libayemu/stcfile.c
[unknown]                 2531    9136  27.7% -lh6- 8d61 Oct  8  2009 ayconv/libayemu/test.c
[unknown]                 2322    7609  30.5% -lh6- 3a57 Oct  8  2009 ayconv/libayemu/vtxfile.c
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        28 files  582577 1942717  30.0%            Oct 16 20:26