1 #include "out.h" 2 3 // note: exported symbol is now winampGetInModule2. 4 5 #define IN_VER 0x100 6 7 typedef struct 8 { 9 int version; // module type (IN_VER) 10 char *description; // description of module, with version string 11 12 HWND hMainWindow; // winamp's main window (filled in by winamp) 13 HINSTANCE hDllInstance; // DLL instance handle (Also filled in by winamp) 14 15 char *FileExtensions; // "mp3\0Layer 3 MPEG\0mp2\0Layer 2 MPEG\0mpg\0Layer 1 MPEG\0" 16 // May be altered from Config, so the user can select what they want 17 18 int is_seekable; // is this stream seekable? 19 int UsesOutputPlug; // does this plug-in use the output plug-ins? (musn't ever change, ever :) 20 21 void (*Config)(HWND hwndParent); // configuration dialog 22 void (*About)(HWND hwndParent); // about dialog 23 24 void (*Init)(); // called at program init 25 void (*Quit)(); // called at program quit 26 27 void (*GetFileInfo)(char *file, char *title, int *length_in_ms); // if file == NULL, current playing is used 28 int (*InfoBox)(char *file, HWND hwndParent); 29 30 int (*IsOurFile)(char *fn); // called before extension checks, to allow detection of mms://, etc 31 // playback stuff 32 int (*Play)(char *fn); // return zero on success, -1 on file-not-found, some other value on other (stopping winamp) error 33 void (*Pause)(); // pause stream 34 void (*UnPause)(); // unpause stream 35 int (*IsPaused)(); // ispaused? return 1 if paused, 0 if not 36 void (*Stop)(); // stop (unload) stream 37 38 // time stuff 39 int (*GetLength)(); // get length in ms 40 int (*GetOutputTime)(); // returns current output time in ms. (usually returns outMod->GetOutputTime() 41 void (*SetOutputTime)(int time_in_ms); // seeks to point in stream (in ms). Usually you signal yoru thread to seek, which seeks and calls outMod->Flush().. 42 43 // volume stuff 44 void (*SetVolume)(int volume); // from 0 to 255.. usually just call outMod->SetVolume 45 void (*SetPan)(int pan); // from -127 to 127.. usually just call outMod->SetPan 46 47 // in-window builtin vis stuff 48 49 void (*SAVSAInit)(int maxlatency_in_ms, int srate); // call once in Play(). maxlatency_in_ms should be the value returned from outMod->Open() 50 // call after opening audio device with max latency in ms and samplerate 51 void (*SAVSADeInit)(); // call in Stop() 52 53 54 // simple vis supplying mode 55 void (*SAAddPCMData)(void *PCMData, int nch, int bps, int timestamp); 56 // sets the spec data directly from PCM data 57 // quick and easy way to get vis working :) 58 // needs at least 576 samples :) 59 60 // advanced vis supplying mode, only use if you're cool. Use SAAddPCMData for most stuff. 61 int (*SAGetMode)(); // gets csa (the current type (4=ws,2=osc,1=spec)) 62 // use when calling SAAdd() 63 void (*SAAdd)(void *data, int timestamp, int csa); // sets the spec data, filled in by winamp 64 65 66 // vis stuff (plug-in) 67 // simple vis supplying mode 68 void (*VSAAddPCMData)(void *PCMData, int nch, int bps, int timestamp); // sets the vis data directly from PCM data 69 // quick and easy way to get vis working :) 70 // needs at least 576 samples :) 71 72 // advanced vis supplying mode, only use if you're cool. Use VSAAddPCMData for most stuff. 73 int (*VSAGetMode)(int *specNch, int *waveNch); // use to figure out what to give to VSAAdd 74 void (*VSAAdd)(void *data, int timestamp); // filled in by winamp, called by plug-in 75 76 77 // call this in Play() to tell the vis plug-ins the current output params. 78 void (*VSASetInfo)(int nch, int srate); 79 80 81 // dsp plug-in processing: 82 // (filled in by winamp, called by input plug) 83 84 // returns 1 if active (which means that the number of samples returned by dsp_dosamples 85 // could be greater than went in.. Use it to estimate if you'll have enough room in the 86 // output buffer 87 int (*dsp_isactive)(); 88 89 // returns number of samples to output. This can be as much as twice numsamples. 90 // be sure to allocate enough buffer for samples, then. 91 int (*dsp_dosamples)(short int *samples, int numsamples, int bps, int nch, int srate); 92 93 94 // eq stuff 95 void (*EQSet)(int on, char data[10], int preamp); // 0-64 each, 31 is +0, 0 is +12, 63 is -12. Do nothing to ignore. 96 97 // info setting (filled in by winamp) 98 void (*SetInfo)(int bitrate, int srate, int stereo, int synched); // if -1, changes ignored? :) 99 100 Out_Module *outMod; // filled in by winamp, optionally used :) 101 } In_Module; 102