winamp/Src/Plugins/Library/ml_pmp/autofill.cpp

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2024-09-24 13:54:57 +01:00
/*
** This is adapted from the autofill code in ml_ipod. It was originally written by and is
** Copyright (C) Will Fisher and Justin Frankel. It remains under the following licence:
**
** 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.
*/
#include <windows.h>
#include <time.h>
#include "../../General/gen_ml/ml.h"
#include "pmp.h"
#include "../../General/gen_ml/itemlist.h"
#include "DeviceView.h"
#include "mt19937ar.h"
#include "config.h"
#include "../nu/AutoChar.h"
#include "metadata_utils.h"
#include "api__ml_pmp.h"
extern winampMediaLibraryPlugin plugin;
extern C_ItemList * getSelectedItems(bool all=false);
typedef struct {
wchar_t * albumName;
int rating;
float ratingf;
int lastplayed;
int size;
bool album;
itemRecordW * ice;
} AutoFillItem;
static void randomizeList(void *list, int elems, int elemsize) {
if (elems < 2) return;
if (elemsize < 1) return;
char *plist=(char*)list;
int p;
char *tmp=(char*)calloc(elemsize, sizeof(char));
if (!tmp) return;
for (p = 0; p < elems; p ++) {
int np=genrand_int31()%elems;
if (p != np) {
np*=elemsize;
int pp=p*elemsize;
memcpy(tmp,plist+pp,elemsize);
memcpy(plist+pp,plist+np,elemsize);
memcpy(plist+np,tmp,elemsize);
}
}
free(tmp);
}
#define atoi_NULLOK(s) ((s)?atoi(s):0)
#define STRCMP_NULLOK(a,b) _wcsicmp(a?a:L"",b?b:L"")
static int sortFunc_icealbums(const void *elem1, const void *elem2) {
itemRecordW * a = (itemRecordW *)elem1;
itemRecordW * b = (itemRecordW *)elem2;
return STRCMP_NULLOK(a->album,b->album);
}
static void autoFill_songfilter(Device * dev, C_ItemList * list, itemRecordListW * results) {
if (results) {
for(int i=0; i < results->Size; i++) {
AutoFillItem * a = (AutoFillItem *)calloc(sizeof(AutoFillItem),1);
a->rating = results->Items[i].rating;
a->lastplayed = (int)results->Items[i].lastplay;
a->size = (int)dev->getTrackSizeOnDevice(&results->Items[i]);
a->album = false;
a->ice = &results->Items[i];
a->albumName=L"arse";
list->Add(a);
}
}
}
static void autoFill_songfilter(Device * dev, C_ItemList * list, C_ItemList * results) {
for(int i=0; i < results->GetSize(); i++) {
itemRecordW *r = (itemRecordW*)results->Get(i);
AutoFillItem * a = (AutoFillItem *)calloc(sizeof(AutoFillItem),1);
a->rating = r->rating;
a->lastplayed = (int)r->lastplay;
a->size = (int)dev->getTrackSizeOnDevice(r);
a->album = false;
a->ice = r;
a->albumName=L"arse";
list->Add(a);
}
}
static void autoFill_albumfilter(Device * dev, C_ItemList * list, itemRecordListW * results, C_ItemList * res = NULL) {
if (results)
qsort(results->Items,results->Size,sizeof(itemRecordW),sortFunc_icealbums);
AutoFillItem * curalbum = NULL;
wchar_t * albumName=NULL;
int albumSize=0;
__int64 lastplayacc=0;
int size = res?res->GetSize():(results?results->Size:0);
int i;
for(i=0; i < size; i++) {
itemRecordW * item = res?(itemRecordW*)res->Get(i):&results->Items[i];
if(!curalbum || STRCMP_NULLOK(item->album,albumName) != 0) {
if(curalbum && albumSize) {
curalbum->lastplayed = (int)(lastplayacc / (__int64)albumSize);
curalbum->ratingf /= (float)albumSize;
list->Add(curalbum);
}
AutoFillItem * a = (AutoFillItem *)calloc(sizeof(AutoFillItem),1);
a->ratingf = (float)item->rating;
lastplayacc = item->lastplay;
a->size = (int)dev->getTrackSizeOnDevice(item);
a->album = true;
a->albumName = item->album;
curalbum = a;
albumName = a->albumName;
albumSize++;
} else {
albumSize++;
curalbum->size += (int)dev->getTrackSizeOnDevice(item);
curalbum->ratingf += (float)item->rating;
lastplayacc += item->lastplay;
}
}
if(curalbum && albumSize) {
curalbum->lastplayed = (int)(lastplayacc / (__int64)albumSize);
curalbum->ratingf /= (float)albumSize;
list->Add(curalbum);
}
//FUCKO: think of something clever to make the ratings relevant
for(i=0; i < list->GetSize(); i++) {
AutoFillItem * a = (AutoFillItem *)list->Get(i);
a->rating = (int)(a->ratingf + 0.5);
if(a->rating > 5) a->rating = 5;
}
}
// FUCKO lame O(n^2) gayness. Make this better.
static void autoFill_addAlbums(C_ItemList * albums, itemRecordListW * songs, C_ItemList * dest) {
if (songs) {
for(int i=0; i < songs->Size; i++)
for(int j=0; j < albums->GetSize(); j++)
if(STRCMP_NULLOK(songs->Items[i].album,(wchar_t *)albums->Get(j))==0)
dest->Add(&songs->Items[i]);
}
}
static int sortFunc_autofill(const void *elem1, const void *elem2)
{
AutoFillItem *a=(AutoFillItem *)*(void **)elem1;
AutoFillItem *b=(AutoFillItem *)*(void **)elem2;
return a->lastplayed - b->lastplayed;
}
itemRecordListW * generateAutoFillList(DeviceView * dev, C_Config * config)
{
// Settings for an autofill
int lastAutofill=config->ReadInt(L"LastAutoFill",(int)time(NULL));
int fillpc = config->ReadInt(L"FillPercent",90);; // fill device 90% full.
bool byAlbum = dev->dev->getDeviceCapacityTotal() > (__int64)1500000000;
byAlbum = config->ReadInt(L"AlbumAutoFill",byAlbum?1:0)==1;
wchar_t * afquery = _wcsdup(config->ReadString(L"AutoFillQuery",L"length > 30"));
wchar_t * squery = _wcsdup(config->ReadString(L"SyncQuery",L"type = 0"));
char * tmp2 = AutoCharDup(config->ReadString(L"AutoFillRatings",L"")); // ratings ratio string (eg "3:1:1:1:0:0")
int len = 2*strlen(tmp2)+2;
char * tmp = (char*)calloc(len,sizeof(char));
strncpy(tmp,tmp2,len); free(tmp2);
int ratingsRatios[6]={0,0,0,0,0,0,};
bool useratings=true;
if(tmp[0]==0) useratings=false;
int i=0;
int ratingsRatiosTotal=0;
if(useratings) {
int len = strlen(tmp);
while(tmp[++i]!=0) if(tmp[i]==':') tmp[i]=0;
tmp[i+1]=0;
char * p = &tmp[0];
for(i=0; i<6; i++) {
if(p > len + tmp) break;
if(*p == 0) break;
ratingsRatios[i] = atoi_NULLOK(p);
ratingsRatiosTotal+=ratingsRatios[i];
p+=strlen(p)+1;
}
}
if(ratingsRatiosTotal==0) {
ratingsRatiosTotal=6;
for(i=0; i<6; i++) ratingsRatios[i]=1;
}
//construct query
wchar_t query[2048]=L"";
if(afquery[0]==0) wsprintf(query,L"%s",squery);
else wsprintf(query,L"(%s) AND (%s)",squery,afquery);
//run query
itemRecordListW *items = 0;
itemRecordListW *results = AGAVE_API_MLDB?AGAVE_API_MLDB->Query(query):0;
if (results)
{
C_ItemList * songList = new C_ItemList;
if(!byAlbum) autoFill_songfilter(dev->dev,songList, results);
else autoFill_albumfilter(dev->dev,songList, results);
//dump into ratings "bins"
C_ItemList * songs[7];
for(i=0; i<7; i++) songs[i] = new C_ItemList;
for(i=0; i<songList->GetSize(); i++) {
if(useratings) {
int rating = ((AutoFillItem*)songList->Get(i))->rating;
switch (rating) {
case 1: songs[1]->Add(songList->Get(i)); break;
case 2: songs[2]->Add(songList->Get(i)); break;
case 3: songs[3]->Add(songList->Get(i)); break;
case 4: songs[4]->Add(songList->Get(i)); break;
case 5: songs[5]->Add(songList->Get(i)); break;
default: songs[0]->Add(songList->Get(i)); break;
}
} else songs[0]->Add(songList->Get(i));
}
for(i=0; i<6; i++)
{
randomizeList(songs[i]->GetAll(),songs[i]->GetSize(),sizeof(void*)); // randomize
qsort(songs[i]->GetAll(),songs[i]->GetSize(),sizeof(void*),sortFunc_autofill); // sort by date
}
__int64 sizeToFill, totalSize=0;
sizeToFill = (((__int64)fillpc) * dev->dev->getDeviceCapacityTotal()) / ((__int64)100);
//sizeToFill = dev->dev->getDeviceCapacityTotal();
C_ItemList * alreadyIn = new C_ItemList;
C_ItemList * notGoingIn = new C_ItemList;
C_ItemList * songsToSend = new C_ItemList;
if(!byAlbum) {
int numTracks = dev->dev->getPlaylistLength(0);
/* Hmm. This should make autofill just replace selected songs
** gonna leave it out for now, until i have good ipod shuffle (et al) support.
C_ItemList * selected = getSelectedItems(false);
int j=0;
if(selected) {
if(selected->GetSize() > 0 && selected->GetSize() < numTracks) {
for(i=0; i<numTracks; i++) {
if(j < selected->GetSize()) if((songid_t)selected->Get(j) == dev->dev->getPlaylistTrack(0,i)) {
j++;
notGoingIn->Add(selected->Get(j));
} else alreadyIn->Add(dev->dev->getPlaylistTrack(0,i));
}
}
delete selected;
}
*/
// otherwise replace ones played since last autofill, unless none played, in which case replace all
if(notGoingIn->GetSize() == 0) {
delete alreadyIn;
alreadyIn = new C_ItemList;
if(lastAutofill > 0)
{
for(i=0; i<numTracks; ++i)
if(dev->dev->getTrackLastPlayed(dev->dev->getPlaylistTrack(0,i)) >= lastAutofill) break;
if (i >= numTracks) // this means nothing has been played, so in this case we set everything to be replaced
{
for(i=0; i<numTracks; ++i) notGoingIn->Add((void*)dev->dev->getPlaylistTrack(0,i));
}
else
{
for(i=0; i < numTracks; ++i)
{
songid_t s = dev->dev->getPlaylistTrack(0,i);
if(dev->dev->getTrackLastPlayed(s) <= lastAutofill) alreadyIn->Add((void*)s);
}
}
}
}
//remove our already selected songs from the bins
for(i=0; i<notGoingIn->GetSize(); ++i) {
songid_t s = (songid_t)notGoingIn->Get(i);
for (int b=0; b < 6; b ++)
{
for(int j=0; j<songs[b]->GetSize(); ++j)
{
if(!compareItemRecordAndSongId(((AutoFillItem *)songs[b]->Get(j))->ice,s, dev->dev))
{ // FUCKO
songs[6]->Add(songs[b]->Get(j));
songs[b]->Del(j);
b=6;
break;
}
}
}
}
for(i=0; i<alreadyIn->GetSize(); ++i) {
songid_t s = (songid_t)alreadyIn->Get(i);
for (int b= 0; b < 6; b ++)
{
for(int j=0; j<songs[b]->GetSize(); ++j)
{
if(!compareItemRecordAndSongId(((AutoFillItem *)songs[b]->Get(j))->ice,s, dev->dev))
{
songsToSend->Add(((AutoFillItem *)songs[b]->Get(j))->ice);
songs[b]->Del(j);
b=6;
break;
}
}
}
__int64 size = (__int64)dev->dev->getTrackSize(s);
if(totalSize + size >= sizeToFill) break;
totalSize += size;
}
} // end if(!byAlbum)
//select the rest!
C_ItemList * albumsToSend = new C_ItemList;
while(true) {
int bin=0;
if (useratings)
{
int val = genrand_int31() % ratingsRatiosTotal;
bin=-1;
while(val>=0 && bin < 5) val -= ratingsRatios[++bin];
if (bin > 5) bin=5;
else if(bin<0) bin=0;
bin = 5-bin; // work in reverse mapped bin now (since ratingsRatio is 5-0)
int sbin=bin;
while(bin<6&&songs[bin]->GetSize()<=0) { bin++; } // if our bin is empty, go to a higher bin
if (bin > 5) // out of higher rated bins, go lower
{
bin=sbin-1; // start at one lower than where we started
while (bin >= 0 && songs[bin]->GetSize()<=0) bin--; // if our bin is still empty, go to a lower bin
}
if (bin < 0) bin = 6;
} else bin = songs[0]->GetSize()?0:6;
if(!songs[bin])
break;
int bsize=songs[bin]->GetSize();
if (bsize<1)
break;
// JF> will had a %(bsize/2) here effectively, which I think is too major.
// I propose a nice simple weighted thing, where stuff near the beginning is more likely
// to be picked.
int snum = genrand_int31() % bsize;
if (genrand_int31()&1) snum/=2; // half the time, just use the first half (less recently played items)
int size = ((AutoFillItem *)songs[bin]->Get(snum))->size;
if(size <= 0)
{
songs[bin]->Del(snum);
continue;
}
totalSize += (__int64)size;
/*{
wchar_t buf[100] = {0};
wsprintf(buf,L"not full. must fill: %d, so far: %d, this track: %d",(int)sizeToFill,(int)totalSize,(int)size);
OutputDebugString(buf);
}*/
if(totalSize >= sizeToFill)
{
/*OutputDebugString(L"full");*/
break;
}
if(byAlbum) {
albumsToSend->Add(((AutoFillItem *)songs[bin]->Get(snum))->albumName);
} else {
songsToSend->Add(((AutoFillItem *)songs[bin]->Get(snum))->ice);
}
songs[bin]->Del(snum);
}
// dump our albums into songsToSend
if(albumsToSend->GetSize() > 0)
autoFill_addAlbums(albumsToSend, results, songsToSend);
items = new itemRecordListW;
items->Alloc = songsToSend->GetSize();
items->Size = songsToSend->GetSize();
items->Items = (itemRecordW*)calloc(items->Alloc, sizeof(itemRecordW));
for(i=0; i<songsToSend->GetSize(); ++i) copyRecord(&items->Items[i],(itemRecordW*)songsToSend->Get(i));
// clear stuff up
for(i=0; i < songList->GetSize(); i++) free(songList->Get(i));
for(i=0; i<7; ++i) delete songs[i];
delete songsToSend;
delete albumsToSend;
delete songList;
delete notGoingIn;
delete alreadyIn;
AGAVE_API_MLDB->FreeRecordList(results); //free memory
}
free(afquery);
free(squery);
free(tmp);
return items;
}