wa_ipc.h

dsp上用c语言实现的aac音频算法的编解码器代码

/*
** Copyright (C) 2003 Nullsoft, Inc.
**
** This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held 
** liable for any damages arising from the use of this software. 
**
** Permission is granted to anyone to use this software for any purpose, including commercial applications, and to 
** alter it and redistribute it freely, subject to the following restrictions:
**
**   1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. 
**      If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
**
**   2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
**
**   3. This notice may not be removed or altered from any source distribution.
**
*/

#ifndef _WA_IPC_H_
#define _WA_IPC_H_

/*
** This is the modern replacement for the classic 'frontend.h'. Most of these 
** updates are designed for in-process use, i.e. from a plugin.
**
*/

/* message used to sent many messages to winamp's main window. 
** most all of the IPC_* messages involve sending the message in the form of:
**   result = SendMessage(hwnd_winamp,WM_WA_IPC,(parameter),IPC_*);
*/
#define WM_WA_IPC WM_USER
/* but some of them use WM_COPYDATA. be afraid.
*/

#define IPC_GETVERSION 0
/* int version = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETVERSION);
**
** Version will be 0x20yx for winamp 2.yx. versions previous to Winamp 2.0
** typically (but not always) use 0x1zyx for 1.zx versions. Weird, I know.
*/

#define IPC_GETREGISTEREDVERSION 770


typedef struct {
  char *filename;
  char *title;
  int length;
} enqueueFileWithMetaStruct; // send this to a IPC_PLAYFILE in a non WM_COPYDATA, 
// and you get the nice desired result. if title is NULL, it is treated as a "thing",
// otherwise it's assumed to be a file (for speed)

#define IPC_PLAYFILE 100  // dont be fooled, this is really the same as enqueufile
#define IPC_ENQUEUEFILE 100 
/* sent as a WM_COPYDATA, with IPC_PLAYFILE as the dwData, and the string to play
** as the lpData. Just enqueues, does not clear the playlist or change the playback
** state.
*/


#define IPC_DELETE 101
#define IPC_DELETE_INT 1101 // don't use this, it's used internally by winamp when 
                            // dealing with some lame explorer issues.
/* SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_DELETE);
** Use IPC_DELETE to clear Winamp's internal playlist.
*/


#define IPC_STARTPLAY 102   // starts playback. almost like hitting play in Winamp.
#define IPC_STARTPLAY_INT 1102 // used internally, don't bother using it (won't be any fun)


#define IPC_CHDIR 103
/* sent as a WM_COPYDATA, with IPC_CHDIR as the dwData, and the directory to change to
** as the lpData. 
*/


#define IPC_ISPLAYING 104
/* int res = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_ISPLAYING);
** If it returns 1, it is playing. if it returns 3, it is paused, 
** if it returns 0, it is not playing.
*/


#define IPC_GETOUTPUTTIME 105
/* int res = SendMessage(hwnd_winamp,WM_WA_IPC,mode,IPC_GETOUTPUTTIME);
** returns the position in milliseconds of the current track (mode = 0), 
** or the track length, in seconds (mode = 1). Returns -1 if not playing or error.
*/


#define IPC_JUMPTOTIME 106
/* (requires Winamp 1.60+)
** SendMessage(hwnd_winamp,WM_WA_IPC,ms,IPC_JUMPTOTIME);
** IPC_JUMPTOTIME sets the position in milliseconds of the 
** current song (approximately).
** Returns -1 if not playing, 1 on eof, or 0 if successful
*/

#define IPC_GETMODULENAME 109
#define IPC_EX_ISRIGHTEXE 666
/* usually shouldnt bother using these, but here goes:
** send a WM_COPYDATA with IPC_GETMODULENAME, and an internal
** flag gets set, which if you send a normal WM_WA_IPC message with
** IPC_EX_ISRIGHTEXE, it returns whether or not that filename
** matches. lame, I know.
*/

#define IPC_WRITEPLAYLIST 120
/* (requires Winamp 1.666+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_WRITEPLAYLIST);
**
** IPC_WRITEPLAYLIST writes the current playlist to <winampdir>\\Winamp.m3u,
** and returns the current playlist position.
** Kinda obsoleted by some of the 2.x new stuff, but still good for when
** using a front-end (instead of a plug-in)
*/


#define IPC_SETPLAYLISTPOS 121
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,position,IPC_SETPLAYLISTPOS)
** IPC_SETPLAYLISTPOS sets the playlist position to 'position'. It
** does not change playback or anything, it just sets position, and
** updates the view if necessary
*/


#define IPC_SETVOLUME 122
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,volume,IPC_SETVOLUME);
** IPC_SETVOLUME sets the volume of Winamp (from 0-255).
*/


#define IPC_SETPANNING 123
/* (requires Winamp 2.0+)
** SendMessage(hwnd_winamp,WM_WA_IPC,panning,IPC_SETPANNING);
** IPC_SETPANNING sets the panning of Winamp (from 0 (left) to 255 (right)).
*/


#define IPC_GETLISTLENGTH 124
/* (requires Winamp 2.0+)
** int length = SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETLISTLENGTH);
** IPC_GETLISTLENGTH returns the length of the current playlist, in
** tracks.
*/


#define IPC_GETLISTPOS 125
/* (requires Winamp 2.05+)
** int pos=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GETLISTPOS);
** IPC_GETLISTPOS returns the playlist position. A lot like IPC_WRITEPLAYLIST
** only faster since it doesn't have to write out the list. Heh, silly me.
*/


#define IPC_GETINFO 126
/* (requires Winamp 2.05+)
** int inf=SendMessage(hwnd_winamp,WM_WA_IPC,mode,IPC_GETINFO);
** IPC_GETINFO returns info about the current playing song. The value
** it returns depends on the value of 'mode'.
** Mode      Meaning
** ------------------
** 0         Samplerate (i.e. 44100)
** 1         Bitrate  (i.e. 128)
** 2         Channels (i.e. 2)
** 3 (5+)    Video LOWORD=w HIWORD=h
** 4 (5+)    > 65536, string (video description)
*/


#define IPC_GETEQDATA 127
/* (requires Winamp 2.05+)
** int data=SendMessage(hwnd_winamp,WM_WA_IPC,pos,IPC_GETEQDATA);
** IPC_GETEQDATA queries the status of the EQ. 
** The value returned depends on what 'pos' is set to:
** Value      Meaning
** ------------------
** 0-9        The 10 bands of EQ data. 0-63 (+20db - -20db)
** 10         The preamp value. 0-63 (+20db - -20db)
** 11         Enabled. zero if disabled, nonzero if enabled.
** 12         Autoload. zero if disabled, nonzero if enabled.
*/


#define IPC_SETEQDATA 128
/* (requires Winamp 2.05+)
** SendMessage(hwnd_winamp,WM_WA_IPC,pos,IPC_GETEQDATA);
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SETEQDATA);
** IPC_SETEQDATA sets the value of the last position retrieved
** by IPC_GETEQDATA. This is pretty lame, and we should provide
** an extended version that lets you do a MAKELPARAM(pos,value).
** someday...

  new (2.92+): 
    if the high byte is set to 0xDB, then the third byte specifies
    which band, and the bottom word specifies the value.
*/

#define IPC_ADDBOOKMARK 129
/* (requires Winamp 2.4+)
** Sent as a WM_COPYDATA, using IPC_ADDBOOKMARK, adds the specified
** file/url to the Winamp bookmark list.
*/
/*
In winamp 5+, we use this as a normal WM_WA_IPC and the string:

  "filename\0title\0"

  to notify the library/bookmark editor that a bookmark
was added. Note that using this message in this context does not
actually add the bookmark.
do not use :)
*/


#define IPC_INSTALLPLUGIN 130
/* not implemented, but if it was you could do a WM_COPYDATA with 
** a path to a .wpz, and it would install it.
*/


#define IPC_RESTARTWINAMP 135
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_RESTARTWINAMP);
** IPC_RESTARTWINAMP will restart Winamp (isn't that obvious ? :)
*/


#define IPC_ISFULLSTOP 400
/* (requires winamp 2.7+ I think)
** ret=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_ISFULLSTOP);
** useful for when you're an output plugin, and you want to see
** if the stop/close is a full stop, or just between tracks.
** returns nonzero if it's full, zero if it's just a new track.
*/


#define IPC_INETAVAILABLE 242
/* (requires Winamp 2.05+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_INETAVAILABLE);
** IPC_INETAVAILABLE will return 1 if the Internet connection is available for Winamp.
*/


#define IPC_UPDTITLE 243
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_UPDTITLE);
** IPC_UPDTITLE will ask Winamp to update the informations about the current title.
*/


#define IPC_REFRESHPLCACHE 247
/* (requires Winamp 2.2+)
** SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_REFRESHPLCACHE);
** IPC_REFRESHPLCACHE will flush the playlist cache buffer.
** (send this if you want it to go refetch titles for tracks)
*/


#define IPC_GET_SHUFFLE 250
/* (requires Winamp 2.4+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GET_SHUFFLE);
**
** IPC_GET_SHUFFLE returns the status of the Shuffle option (1 if set)
*/


#define IPC_GET_REPEAT 251
/* (requires Winamp 2.4+)
** val=SendMessage(hwnd_winamp,WM_WA_IPC,0,IPC_GET_REPEAT);
**
** IPC_GET_REPEAT returns the status of the Repeat option (1 if set)
*/


#define IPC_SET_SHUFFLE 252
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SET_SHUFFLE);
**
** IPC_SET_SHUFFLE sets the status of the Shuffle option (1 to turn it on)
*/


#define IPC_SET_REPEAT 253
/* (requires Winamp 2.4+)
** SendMessage(hwnd_winamp,WM_WA_IPC,value,IPC_SET_REPEAT);
**
** IPC_SET_REPEAT sets the status of the Repeat option (1 to turn it on)
*/


#define IPC_ENABLEDISABLE_ALL_WINDOWS 259 // 0xdeadbeef to disable
/* (requires Winamp 2.9+)
** SendMessage(hwnd_winamp,WM_WA_IPC,enable?0:0xdeadbeef,IPC_MBOPENREAL);
** sending with 0xdeadbeef as the param disables all winamp windows, 
** any other values will enable all winamp windows.
*/


#define IPC_GETWND 260
/* (requires Winamp 2.9+)
** HWND h=SendMessage(hwnd_winamp,WM_WA_IPC,IPC_GETWND_xxx,IPC_GETWND);
** returns the HWND of the window specified.
*/
  #define IPC_GETWND_EQ 0 // use one of these for the param
  #define IPC_GETWND_PE 1
  #define IPC_GETWND_MB 2
  #define IPC_GETWND_VIDEO 3
#define IPC_ISWNDVISIBLE 261 // same param as IPC_GETWND




/************************************************************************
***************** in-process only (WE LOVE PLUGINS)
************************************************************************/


#define IPC_SETSKIN 200
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)"skinname",IPC_SETSKIN);
** IPC_SETSKIN sets the current skin to "skinname". Note that skinname 
** can be the name of a skin, a skin .zip file, with or without path. 
** If path isn't specified, the default search path is the winamp skins 
** directory.
*/


#define IPC_GETSKIN 201
/* (requires Winamp 2.04+, only usable from plug-ins (not external apps))
** SendMessage(hwnd_winamp,WM_WA_IPC,(WPARAM)skinname_buffer,IPC_GETSKIN);
** IPC_GETSKIN puts the directory where skin bitmaps can be found 
** into  skinname_buffer.
** skinname_buffer must be MAX_PATH characters in length.
** When using a .zip'd skin file, it'll return a temporary directory
** where the ZIP was decompressed.