MPXPLAY Audio Player v1.67 by PDSoft

If You find a bug, first read the 'known bugs' section below, 
if the bug isn't there, please write it to me with these informations:
-your hardware (CPU,RAM,Soundcard)
-your operating system (DOS,Win95/98,Win32)
-your command line options (i.e. mpxplay.exe -bp -cf playlist.m3u)
-description (what did you do, and what did the program do, when you found it)
 (i.e. keyboard operations)

I never can test the program totally. Sometimes a modification causes a new bug.
If a function doesn't work properly (but it worked in the previous version(s)),
please write it to me...

Known bugs and limits:
- DOSLFN with Mpxplay can cause data loss or directory entry fault at file 
  write/create and at copy/rename/move (commander functions and playlist save) !!!
  Use DOSLFN for disk reading only! 
  (I don't know yet where is the bug, but I assume it's in DOSLFN, because Mpxplay works properly under windows)

- see FAQ.TXT for extender (DOS32A,DOS4G,PMODEW) bugs & limits
- autodetection of filetypes:
 - basically filetypes are checked/detected by file-extensions
 - known (implemented) file-extensions are not autodetected (if check-by-extension fails)
 - unknown file-extensions (in playlist or from command-line) are autodetected (by their contents)
 - AAC files are not autodetected (with other file extensions)
 - filetypes in DLLs (DTS,MOD) are not autodetected (missing feature)
 - autodetection is disabled in commander mode
 - you can enable the autodetection for known file-extensions and in commander mode by the ProgramCntrl+8 flag
 - autodetection is simplier/shorter(/faster) (than normal check) at some stream-filetypes (MP2/MP3,MPG,OGG,TS),
   this can cause parsing-failure at bad/incomplete files (use correct extensions at such files)
- multi tabs (ctrl-t):
 - works in dynamic playlist mode only (MaxFilenames=0)
 - max number of tabs per side is 8 (display limit)
 - using large playlist(s) on any tab can slow down some disk functions (file copy/move/del, id3-tag write)
   (because they search for the modified files on all tabs to update dir/file/id3 informations)
- AAC :
 - time-length,bitrate,seeking-bar and some time-pos related functions (crossfade,soundlimit) 
   are not correct at RAW and ADTS fileformats (but good at ADIF)
   (the program doesn't (cannot) calculate correctly the time-length of the file)
 - slow seeking in some cases (1st far forward jump)(slower at RAW and ADIF)
 - RAW files initialized with fixed 48kHz (if no freq info in the bitstream neither), so the originally 32 and 44.1 khz files are played faster
- MPC : 
 - only Streamversion 7.0 and 7.1 are implemented/supported
 - seeking problems (?) (sometimes the seeking can fail, and the playing stops or skips to the next song)
- CDW : 
 - doesn't work on every CD-ROMs (only on those, which can copy/ripp/grab audio tracks)
 - the door open/close also doesn't work on every drives
 - maybe the DOS version doesn't work under WIN95/98 (hardware dependant?)(it works with my DVD players (TEAC,Toshiba))
 - program opens/reads one track only at once (cannot play and copy simultaneously)
 - seeking bugs/fault with -bpn option (when the next file is opened/loaded)
 - win32 (NT/XP): requires write access (or admin rights) on the drive
 - win32/aspi (it's used under win9x only, so probably completely unsupported, will be removed): the drive letter (d:) may be reversed/exchanged at 2 or more drives (couldn't assign the drive letter(s) to the aspi device number(s) yet)
- mixer:
 - soundlimit (-sl) has no effect at the begin of files in the default -bp (interrupt decoder) mode, only in -bs,-bn,-bni,bn8 (interrupt decoder is disabled) modes
- soundcard routines:
 - if you play 48khz files with original SB16 card (which cannot play 48k) use '-of 44100' option
 - maybe the soundcard IRQ works below 8 only (3-7) (set the IRQ to 5, then it will work) (SB16,SBpro,GUS)
 - Win9x (DOS version): only SB16, SBpro and GUS work in background (because they use IRQ)(other cards work in active window only)
- crossfade:
 - holds/uses the freq of the first song at different freqs (you can set a constant/alternative freq with -of)
 - doesn't give perfect result at some (lower) freq combinations (ie: 22khz->24khz)
 - doesn't work in demo-mode (hi-scan)
 - doesn't work at fullbuffer (-bl) or at large prebuffer (-bbn 500), at auto-pause (-pap/ctrl-p) and pause-next (ctrl-s) functions
 - increased volume + limiter = non-linear fade-out and fade-in
- Win9x (DOS version):
 - lfn getcwd function (int21h,ax=7147) doesn't work properly -> causes bugs in directory browser (it's good with DOSLFN)
 - possible dir-scan problems on substed drives (directory browser and -ds)
- sort function (-io or ctrl-F1-F4):
 - some of the keys are unavailable in some cases, ie: filesize and filedate don't exist at loading standard playlists (M3U,PLS,etc.), 
   only at drive/directory scan (d:\*.*\*.*) or Mpxplay saved CUE files (with REM MPXPINFO FIDA,FISI infos)
 - doesn't work properly with -ipl/-idl/-ihl/-is functions (similar problem than previous)
- DOS: 
 - filesize limit is 2GB
 - text handling (string compare) functions are case sensitive at international (non-US) chars
  (in the Win32/unicode version only the shift-F2 and alt-'+' functions are case sensitive at non-US chars)
- FTP: 
 - id3tag editing doesn't work (you cannot modify a file with ftp commands)
 - some session settings (the switches in sess manager) don't work if session is restored by startup (by mpxtabs.ini) (only -drfc option has effect in this case)
- possible random mode bugs (with crossfade)
- possible timing problems using -bn8 (mouse,joy,?)
- seeking is not exact on most VBR stream-filetypes (MP3,OGG,FLAC,MPG,TS) and may be buggy on older APE files (v<=3.92)
- Mpxplay cannot play very short files in some cases (shorter than 0.5 sec)(shorten than the DMA buffer)
- the spectrum analyser works properly on 44khz/stereo files only

- minimum playback freq: 512Hz (max is 4Ghz, but maybe the speed of your HD/CPU is not enough to play a more than 10 Mhz wav file)
- Maximum number of playlist entries:
  - Dynamic playlist handling (MaxFilenames=0 setting in mpxplay.ini) is used by default (playlist is limited by the memory only)
  - A Maxfilenames>0 value pre-allocates a static playlist memory.
   - in DOS version with MaxFilenames=9999:
     in normal mode: 1999 (left side,directory browser), 9999 (right side,playlist)
     in doombox mode: 9999 (left side/playlist), 1999 (right side/doombox queue)
     (max. playlist size: 64*9999 = 640 kbyte)(640k for filenames, 640k for id3-infos)
   - Win32 version with MaxFilenames=19999: 80*19999 = 1600k for filenames and 1600k for id3-infos on both sides
- mpxplay.ini : max filesize=256kbytes; max number of lines=768; max chars per line is 512 in DOS, 1024 in Win32/unicode version
- startup:
 -CMOS (+4): only the fastlist number (on 3 bits: max 7 fastlists), the song (playlist entry) number (on 14 bits: max 16383 entries) and the file position (% on 7 bits) are saved/restored
  (if no fastlist are configured in mpxplay.ini, then the song number is saved on 17 bits (for max. 131071 playlist entries))
- the SBpro compatible cards: 
  - sound with 8 bits & 22khz only (bad quality)
  - use more CPU (freq conversion 44->22khz)

-------------------------------------------------------------------------------
Other informations:

-PLAYLIST usage:
 -you can create a playlist:
  - under DOS with the  DIR /B/ON *.MP3 > PLAYLIST.M3U  command
  - with Mpxplay:
    MPXPLAY.EXE d:\*.*\*.* -@s playlist.m3u
    MPXPLAY.EXE -ds c -@s playlist.m3u
    MPXPLAY.EXE -ds c -@s playlist.m3u *.mp3  (create playlist from C drive with MP3 files only)
    MPXPLAY.EXE -ds c -irl -@sw playlist.m3u  (to store/save file infos (artist,title,time) in the M3U)
  -inside Mpxplay: with the F2 key

 -MXU (extended playlist / file database):

  -create: MPXPLAY.EXE -irl -@sx EXTLIST.MXU PLAYLIST.M3U
       or: MPXPLAY.EXE -irl -@sx EXTLIST.MXU d:\*.*\*.*

  -use (load): MPXPLAY.EXE EXTLIST.MXU                 (used like a playlist)
           or: MPXPLAY.EXE -ig EXTLIST.MXU d:\*.*\*.*  (used to load file infos faster)
           or: MPXPLAY.EXE -ig EXTLIST.MXU             (without input file(s) -> for faster directory browsing)

  - You can use sub-list(s) in MXU on this way:
    (you have to write these lines manually into the mxu list, the separator char is '|' (pipe))
   -M3U sub-list:
     D:\AUDIOMP3\PLAYLIST.M3U||[sub-list]|00000000
   -MXU sub-list:
     D:\AUDIOMP3\PLAYLIST.MXU||[sub-list]|00000000

 -subdir scan examples:
  D:\*.*\*.*        : load all supported (audio) files from the D drive
  D:\ABC*.*\*.*\*.* : load files from ABC*.* subdirs and from their subdirs
  D:\ABCD\*.*\*.*   : load files from ABCD dir and from its subdirs
  D:\?*.*\*.*   : load files from the first subdirectory level only (don't load root and don't scan deeper subdirectories)
  D:\ABC*.*\*.* : load files from ABC*.* subdirs only
  *.*           : load files from the current directory only
  *.MP3         : load MP3 files from the current directory

-ID3-TAG write/update in ASF,FLAC,MP4,OGG; AAC/AC3/APE/MP2/MP3/MPC (ID3v1.0,v1.1, ID3v2.3,v2.4, APEv2-tag)
 Tag editing in playlist editor (F4 key):
 -You can edit the tag of a single file, or a group of files (selected by Ins).
 -At group editing the program collects and displays the common tag informations (but usually this works in directory only)
 -Some dynamic-length metadata formats (ID3v2,ASF,FLAC,MP4,OGG) requires a padding
  field to extend the metadata infos. If this padding is not exist or too small,
  we have the following possibilities (the program gives these in a window):
  1. We duplicate the file adding all (new and old) informations to the new file. (write to a tmp file, rename at the end)
     The program also adds a padding field to the file, so usually no need
     to duplicate it again.
  2. We drop some tags from the metadata field (primary the unknown tags, which are not required
     for Mpxplay nor for audio playing, just gives extra informations to some players)
  3. MP4 format gives an extra option: we move the header infos (the complete MOOV atom, inc. META atom)
     to the end of file and we write all metadata infos there.

 Tag editing from command line:
 -you can use -iw with -it options (-ita,-itt, etc.) (see readme.txt)

 -or you can use a listfile on this way:

  make a text file in this form (write artist:title after every filenames)(don't write spaces in the filenames):

  filenam1.MP3 artist1:title1
  filenam2.MP3 artist2:title2
  filenam3.MP3 artist3:title3

  Name it to !FILES and run my program with these options:

  MPXPLAY.EXE -iw -ig !FILES playlist.m3u
  or
  MPXPLAY.EXE -iw -ig !FILES *.*

  and the program will write this ID3 info(s) into the audio files.

  (the listfile (!FILES) is same like an m3u file, but with artist & title)

  examples:
  mpxplay.exe -iw -ig !FILES -itl "80's collection" -itc "encoded by myself" playlist.m3u   (you can use -ig and -it options together)
  mpxplay.exe -iw -ita "Name of the artist" -ity "2004" *.mp3              (modify/write artist and year tags in all MP3 files)
  mpxplay.exe -iw -itl "New album name" -itc "" track04.ape track11.ape   (modify the album and clear the comment in the track04.ape and track11.ape files)


-FRAMES: Mpxplay handles the files in frames. 1 frame is usually 4608 pcm bytes (1152*channels*2)
	 (1 sec = ca. 38 frames at 44.1kHz)(depends on the freq of file too)

-CD-WAV (CDW) : the cd-wav function is not a simple audio CD player, this is
 a real time Digital Audio Copy (it reads the cda sectors and writes them to
 the sound card), because of this you can use crossfade, speed control,
 auto volume correction and surround on audio CDs and you can copy the
 audio tracks to the hd (with ALT-F5). 
 (note: parallel play and copy from the same disk can be very slow or bad)

-USING MPXPLAY 
 - WITHOUT HARDDISK: I haven't tested it, try -db option
 - WITHOUT VGA CARD: I also haven't tested it, try -f0 option

-LESS CPU USAGE: the program uses less cpu time without spectrum analyser,
 volume correction, surround, soundlimit and volume meter.
 Use this for slow CPUs: mpxplay.exe -sl 0 -ddma -f0 -v -bl -bn8 playlist.m3u
 OR: mpxplay.exe -sl 0 -ddma -bl -bn8 playlist.m3u
  and set in mpxplay.ini: Displaymode=76 or Displaymode=92 and Desktopmode=1018

-SOUNDLIMIT: cuts (don't write to the output) the signal below
 "soundlimit" it doesn't play (only decode) while, and it finishes the play
 (exit or step to next song in playlist) in last 400 frame when volume is
 bellow or equal to soundlimit.
 Set it to 50 for disco, 10 for classical music, 1 to cut at 'digital noise'
 and 0 to disable soundlimit checking.

-VERBOSE: in verbose mode (-v) you get more informations (header info:layer,bitrate,etc.,
 ,ID3tag info:artist,title,year,...)(use it for -f0,-ff or -fl options)

-TEST MODE: in test mode (-t) the program writes the output to nowhere (null output)
 and you can test the speed of your computer and my program.
 You get the results at the end of running.
 Index value must be above 100% to play properly audio (MP3) files.

-PROGRAMCNTRL configuration in mpxplay.ini (default: DOS:0 Win:16):
 0.   +1  confirm exit (-xce)
 1.   +2  machine shutdown at exit (-xas)
 2.   +4  reserved
 3.   +8  always try to autodetect the filetype (usefull in commander mode and if file-extension and file-type don't match)
 4.  +16  win:open unknown (like jpg,pdf,doc) file types with default (external) system application (enabled by default)
 5.  +32  win:open all files with default system application (inside A/V playing still can be controlled with ctrl-enter and skip keys)

-PLAYLISTCNTRL configuration in mpxplay.ini (default: 0):
 0.   +1  disable playlist warnings (only "non-standard CUE" yet)
 1.   +2  eq to -db option (disable left side)
 2.   +4  eq to -db2 option (use dir browser on both sides and load playlist as sublist from commandline)
 3.   +8  eq to -il option (use local id3-list for file id3-infos)
 4.  +16  non-filtered playlist search at alt-letter (the older method)

-SORTCONTROL configuration in mpxplay.ini (default: 0):
 0.   +1  use descending order on all tabs
 1.   +2  sort directories and playlists too (by filedate or filename) (else always by filename in ascending order)
 2.   +4  disable auto descending (for len,size,filedate columns) (else switching to sort by len/size/date initialized in descending order)
 3.   +8  don't keep playlist on the top of the directory at sort

-MIXERCONTROL configuration in mpxplay.ini (default: 1)
 0.   +1  enable sound limiter (fast volume reduction)
 1.   +2  allways use soft-tone (disable DOS hw soundcard tone controls)
 2.   +4  0.1% speed control (550-1000-9999) (instead of 1%)
 3.   +8  reserved
 4.  +16  disable decoder (MPx) tone (use always the au_mixer tone control)
 5.  +32  disable au_mixer tone (use tone control at MPx files only)

-DISPLAYMODE configuration in mpxplay.ini:
 (default: 126 = 64+32+16+8+4+2; -fl: 2; -fl -v: 6=2+4; -fe -fs : 14=8+4+2)
       0  no display (-f0)
 0.   +1  display only a frame counter (use it with -f0 (0) & -v (+4) only)
 1.   +2  display timepos line
 2.   +4  display id3info & header lines (-v)
 3.   +8  use fullscreen (else display 1-3 lines only)
 4.  +16  use half screen playlist-editor with spectrum analyser and buttons (else fullscreen editor with timepos,id3info,header lines)
 5.  +32  enable spectrum analyser
 6.  +64  use (change display to) 50 lines mode (else use the initial (DOS) resolution)
 7. +128  use DesktopModeC (else P)

-DESKTOPMODE(P,C) configuration (default: 507=1+2+8+16+32+64+128+256 and 656511=1+2+4+8+16+32+64+1024+131072+524288):
 0.     +1  show song position line (....)
 1.     +2  show playlist position line (....)
 2.     +4  show all filenames in directory browser (not only supported audio/container)
 3.     +8  show playlist editor elevator ()
 4.    +16  vertical editor sides (else horizontal)
 5.    +32  show filename with fullpath at the top of the editor (automatically disabled at multiply tabs)
 6.    +64  show fulltime (in bottom right corner)
 7.   +128  show songtimes in editor
 8.   +256  show songnumbers in editor
 9.   +512  show drive letters in editor
10.  +1024  show filenames in editor instead of artist:title
11.  +2048  follow browser (via mouse) in editor
12.  +4096  shift playlist entry up or down by mouse (drag & move) (otherwise scroll editorside)
13.  +8192  allways follow song-skip with the cursor/editorhighline (else follows only if it stands on the current/played song)
14. +16384  disable "move side with editorhighline" function (set old editorhighline/side moving method)
15. +32768  disable ID3-window artist-title scroll (album (2.) line never scrolls)
16. +65536  always display tabs-header line/buttons in playlist editor
17. +131072 align fields in editor (separate filename and extension or artist and title (commander/player))
18. +262144 sign playlist to [playlist] (not [sub-list]) if other side is playlist-side (and enter key loads it to other side, starts playing immediately) (this was the default method before v1.56)
19. +524288 display dates of directories in playlist editor
(note: at some functions (like sort) the commander mode means that the 2., 10. and 19. bits are enabled together)

-LOADID3TAG configuration (default: 39 = 1 + 2 + 4 + 32)
0.  +1  use mxu/extm3u/id3list
1.  +2  load tags from audio files
2.  +4  create artist:title from (long)filename if no other id3info (enabled by default)
  (detected filename formats are: "Artist - Album (YEAR)\NN. Artist - Title.XXX" or "Artist - NN - Title.XXX" (one or more of the items can missing)(NN is tracknumber))
3.  +8  prefer list-tags (got from extm3u,mxu,id3list,filename) (else prefer audiofile-tags)
4. +16  preload informations from slow devices too (ftp,http)
5. +32  load ID3 tags from low level devices too (Icecast, http) (enabled by default)


-available CPNAMEs (codepages) for -8ucp and -8ccp options (def. ISO-8859-2 and CP437):
 ISO-8859-1,ISO-8859-2,ISO-8859-3 ,ISO-8859-4 ,ISO-8859-5 ,ISO-8859-6 ,ISO-8859-7,
 ISO-8859-8,ISO-8859-9,ISO-8859-10,ISO-8859-13,ISO-8859-14,ISO-8859-15,ISO-8859-16,
 CP424,CP437,CP720,CP737,CP775,CP850,CP852,CP855,CP856,CP857,CP858,
 CP860,CP861,CP862,CP863,CP864,CP865,CP866,CP869,CP874,CP1006,
 CP1250,CP1251,CP1252,CP1253,CP1254,CP1255,CP1256,CP1257,CP1258
 partial support for CP932,CP936,CP949,CP950 (and maybe the graphical-desktop of Mpxplay also will be bad)

-limiter function (MixerControl=1): is a fast auto volume reduction (if required)
 after channel-downmix, crossfade, surround, tone-control or if SoundVolume>100
 (usually the limiter function cannot work properly in LQ (HQmode=0) mixer mode)
