void StPlayList::clear() {
StMutexAuto anAutoLock(myMutex);
if(myFirst != NULL) {
myWasCleared = true;
mySerial.increment();
}
if(!myPlsFile.isNull()
&& myCurrent != NULL) {
if(myPlsFile->File->isEmpty()) {
myPlsFile->File->add(new StFileNode(myCurrent->getPath(), myPlsFile->File.access()));
} else {
myPlsFile->File->changeValue(0)->setSubPath(myCurrent->getPath());
}
}
myPlsFile.nullify();
// destroy double-linked list content
for(StPlayItem *anItem(myFirst), *anItemToDel(NULL); anItem != NULL;) {
anItemToDel = anItem;
anItem = anItem->getNext();
delete anItemToDel;
}
myStackPrev.clear();
myStackNext.clear();
myFirst = myLast = myCurrent = NULL;
myItemsCount = myPlayedCount = 0;
anAutoLock.unlock();
signals.onPlaylistChange();
}
bool StPlayList::walkToPosition(const size_t theId) {
StMutexAuto anAutoLock(myMutex);
size_t anIter = 0;
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext(), ++anIter) {
if(anIter == theId) {
if(myCurrent == anItem) {
return false;
}
StPlayItem* aPrev = myCurrent;
if(aPrev != NULL) {
myStackPrev.push_back(aPrev);
if(myStackPrev.size() > THE_UNDO_LIMIT) {
myStackPrev.pop_front();
}
}
myCurrent = anItem;
anAutoLock.unlock();
signals.onPositionChange(theId);
return true;
}
}
return false;
}
bool StPlayList::saveM3U(const StCString& thePath) {
StRawFile aFile;
if(thePath.isEmpty()
|| !aFile.openFile(StRawFile::WRITE, thePath)) {
return false;
}
StMutexAuto anAutoLock(myMutex);
aFile.write(stCString("#EXTM3U"));
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
const StFileNode* aNode = anItem->getFileNode();
if(aNode == NULL) {
continue;
} else if(aNode->size() < 2) {
aFile.write(stCString("\n#EXTINF:0,"));
if(anItem->hasCustomTitle()) {
aFile.write(anItem->getTitle());
}
aFile.write(stCString("\n"));
aFile.write(aNode->getPath());
}
}
aFile.write(stCString("\n"));
return true;
}
void StPlayList::getSubList(StArrayList<StString>& theList,
const size_t theStart,
const size_t theEnd) const {
theList.clear();
StMutexAuto anAutoLock(myMutex);
size_t anIter = 0;
StPlayItem* anItem = myFirst;
for(; anItem != NULL; anItem = anItem->getNext(), ++anIter) {
if(anIter == theStart) {
break;
}
}
if(anIter != theStart) {
return;
}
for(; anItem != NULL; anItem = anItem->getNext(), ++anIter) {
if(anIter == theEnd) {
break;
}
theList.add(anItem->getTitle());
}
}
int32_t StPlayList::getSerial() {
StMutexAuto anAutoLock(myMutex);
if(myWasCleared
&& myFirst != NULL) {
myWasCleared = false;
mySerial.increment();
}
return mySerial.getValue();
}
void StPlayList::currentToRecent() {
StMutexAuto anAutoLock(myMutex);
if( myCurrent == NULL
|| !myPlsFile.isNull()) {
return;
}
StHandle<StPlayList::StRecentItem> aRecent = addRecentFile(*myCurrent->getFileNode());
aRecent->Params = myCurrent->getParams();
}
bool StPlayList::walkToFirst() {
StMutexAuto anAutoLock(myMutex);
bool wasntFirst = (myCurrent != myFirst);
myCurrent = myFirst;
if(wasntFirst) {
myStackPrev.clear();
myStackNext.clear();
anAutoLock.unlock();
signals.onPositionChange(0);
}
return wasntFirst;
}
bool StPlayList::remove(const StString& thePath,
const bool theToRemovePhysically) {
StString aPath = thePath;
StPlayItem* aRemItem = NULL;
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
// empty playlist
return false;
} else if(aPath != myCurrent->getPath()) {
// search play item
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(aPath == anItem->getPath()) {
aRemItem = anItem;
break;
}
}
} else {
// walk to another playlist position
aRemItem = myCurrent;
const bool aPlayedFlag = aRemItem->getPlayedFlag();
if(myCurrent->hasNext()) {
myCurrent = myCurrent->getNext();
} else if(myCurrent->hasPrev()) {
myCurrent = myCurrent->getPrev();
} else {
myCurrent = NULL;
myPlayedCount = 0;
}
if(myCurrent != NULL) {
if(aRemItem->getPlayedFlag() != aPlayedFlag) {
// the item has not been played yet - mark it as such
aRemItem->setPlayedFlag(aPlayedFlag);
} else {
// one played item has been removed
--myPlayedCount;
}
}
}
// remove item itself
const bool isDeleted = aRemItem != NULL
&& (!theToRemovePhysically || StFileNode::removeFile(aPath));
if(isDeleted) {
delPlayItem(aRemItem);
delete aRemItem;
}
anAutoLock.unlock();
signals.onPlaylistChange();
return isDeleted;
}
bool StPlayList::walkToLast() {
StMutexAuto anAutoLock(myMutex);
bool wasntLast = (myCurrent != myLast);
myCurrent = myLast;
if(wasntLast) {
myStackPrev.clear();
myStackNext.clear();
const size_t anItemId = myCurrent != NULL ? myCurrent->getPosition() : 0;
anAutoLock.unlock();
signals.onPositionChange(anItemId);
}
return wasntLast;
}
void StPlayList::addOneFile(const StString& theFilePath,
const StMIME& theFileMIME) {
StMutexAuto anAutoLock(myMutex);
StFileNode* aFileNode = new StFileNode(theFilePath, &myFoldersRoot);
aFileNode->setMIME(theFileMIME);
myFoldersRoot.add(aFileNode);
addRecentFile(*aFileNode); // append to recent files list
addPlayItem(new StPlayItem(aFileNode, myDefStParams));
anAutoLock.unlock();
signals.onPlaylistChange();
}
StHandle<StFileNode> StPlayList::getCurrentFile() {
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
// empty list
return StHandle<StFileNode>();
}
StFileNode* aFileNode = myCurrent->getFileNode();
if(aFileNode == NULL) {
// invalid item
return StHandle<StFileNode>();
}
return new StFileNode(aFileNode->getPath());
}
StPlayList::CurrentPosition StPlayList::getCurrentPosition() const {
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
return CurrentPosition_NONE;
} else if(myCurrent == myFirst) {
if(myCurrent == myLast) {
return CurrentPosition_Single;
}
return CurrentPosition_First;
} else if(myCurrent == myLast) {
return CurrentPosition_Last;
}
return CurrentPosition_Middle;
}
void StPlayList::getRecentList(StArrayList<StString>& theList) const {
theList.clear();
StMutexAuto anAutoLock(myMutex);
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
const StHandle<StRecentItem>& aRecent = myRecent[anIter];
const StHandle<StFileNode>& aFile = aRecent->File;
const StString aPath = aFile->size() == 2 ? aFile->getValue(0)->getPath() : aFile->getPath();
StString aTitleString;
StString aFolder;
StFileNode::getFolderAndFile(aPath, aFolder, aTitleString);
theList.add(aTitleString);
}
}
void StPlayList::setTitle(const StHandle<StStereoParams>& theKey,
const StString& theTitle) {
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
return;
}
if(theKey != myCurrent->getParams()) {
return;
}
const size_t anItemId = myCurrent->getPosition();
myCurrent->setTitle(theTitle);
anAutoLock.unlock();
signals.onTitleChange(anItemId);
}
void StPlayList::updateRecent(const StHandle<StFileNode>& theFile,
const StHandle<StStereoParams>& theParams) {
StMutexAuto anAutoLock(myMutex);
if(!myPlsFile.isNull()
&& myPlsFile->File == theFile) {
// remember properties of last played file
myPlsFile->Params = theParams;
return;
}
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
StHandle<StRecentItem>& aRecent = myRecent[anIter];
if(stAreSameRecent(*theFile, *aRecent->File)) {
aRecent->Params = theParams;
return;
}
}
}
size_t StPlayList::findRecent(const StString thePathL,
const StString thePathR) const {
StFileNode aNode;
if(thePathR.isEmpty()) {
aNode.setSubPath(thePathL);
} else {
aNode.add(new StFileNode(thePathL, &aNode));
aNode.add(new StFileNode(thePathR, &aNode));
}
StMutexAuto anAutoLock(myMutex);
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
const StHandle<StRecentItem>& aRecent = myRecent[anIter];
if(stAreSameRecent(aNode, *aRecent->File)) {
return anIter;
}
}
return size_t(-1);
}
StString StPlayList::dumpRecentList() const {
StMutexAuto anAutoLock(myMutex);
StArgumentsMap aMap;
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
const StHandle<StRecentItem>& aRecent = myRecent[anIter];
const StHandle<StFileNode>& aFile = aRecent->File;
const StHandle<StStereoParams>& aParams = aRecent->Params;
if(!myPlsFile.isNull()
&& aFile == myPlsFile->File
&& myCurrent != NULL) {
StArgument anArgFile(StString("file") + anIter, aFile->getPath());
StArgument anArgPos (StString("pos") + anIter, myCurrent->getPath());
aMap.add(anArgFile);
aMap.add(anArgPos);
} else if(aFile->isEmpty()) {
StArgument anArgFile(StString("file") + anIter, aFile->getPath());
aMap.add(anArgFile);
} else if(aFile->size() == 1) {
StArgument anArgFile(StString("file") + anIter, aFile->getPath());
StArgument anArgPos (StString("pos") + anIter, aFile->getValue(0)->getSubPath());
aMap.add(anArgFile);
aMap.add(anArgPos);
} else if(aFile->size() == 2) {
StArgument anArgLeft (StString("left") + anIter, aFile->getValue(0)->getPath());
StArgument anArgRight(StString("right") + anIter, aFile->getValue(1)->getPath());
aMap.add(anArgLeft);
aMap.add(anArgRight);
}
if(!aParams.isNull()) {
if(aParams->Timestamp > 360.0) {
std::stringstream aStream;
aStream.imbue(std::locale("C"));
aStream << aParams->Timestamp;
const StString aStrValue = aStream.str().c_str();
StArgument anArgTime(StString("time") + anIter, aStrValue);
aMap.add(anArgTime);
}
}
}
return aMap.toString();
}
void StPlayList::loadRecentList(const StString theString) {
StMutexAuto anAutoLock(myMutex);
StArgumentsMap aMap;
aMap.parseString(theString);
myRecent.clear();
for(size_t anIter = 0; anIter < myRecentLimit; ++anIter) {
const StArgument anArgFile = aMap[StString("file") + anIter];
const StArgument anArgLeft = aMap[StString("left") + anIter];
const StArgument anArgRight = aMap[StString("right") + anIter];
const StArgument anArgTime = aMap[StString("time") + anIter];
StHandle<StRecentItem> aRecent;
if(anArgLeft.isValid() && anArgRight.isValid()) {
StHandle<StFileNode> aFileNode = new StFileNode(StString());
aFileNode->add(new StFileNode(anArgLeft.getValue(), aFileNode.access()));
aFileNode->add(new StFileNode(anArgRight.getValue(), aFileNode.access()));
aRecent = addRecentFile(*aFileNode, false);
} else if(anArgFile.isValid()) {
StHandle<StFileNode> aFileNode = new StFileNode(anArgFile.getValue());
const StArgument anArgPos = aMap[StString("pos") + anIter];
if(anArgPos.isValid()) {
aFileNode->add(new StFileNode(anArgPos.getValue(), aFileNode.access()));
}
aRecent = addRecentFile(*aFileNode, false);
}
if(aRecent.isNull()) {
continue;
}
if(anArgTime.isValid()) {
if(aRecent->Params.isNull()) {
aRecent->Params = new StStereoParams();
}
std::stringstream aStream;
aStream.imbue(std::locale("C"));
aStream << anArgTime.getValue().toCString();
aStream >> aRecent->Params->Timestamp;
}
}
}
StHandle<StStereoParams> StPlayList::openRecent(const size_t theItemId) {
StMutexAuto anAutoLock(myMutex);
if(theItemId >= myRecent.size()) {
return StHandle<StStereoParams>();
}
const StHandle<StRecentItem> aRecent = myRecent[theItemId];
const StHandle<StFileNode> aFile = aRecent->File;
if(aFile->size() == 2) {
// stereo pair from two files
clear();
addOneFile(aFile->getValue(0)->getPath(),
aFile->getValue(1)->getPath());
} else if(aFile->size() == 1) {
// playlist
open(aFile->getPath(), aFile->getValue(0)->getSubPath());
} else {
// single file
open(aFile->getPath());
}
return aRecent->Params;
}
bool StPlayList::walkToPrev() {
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
return false;
} else if(myIsShuffle && myItemsCount >= 3) {
StPlayItem* aNext = myCurrent;
if(!myStackPrev.empty()) {
myCurrent = myStackPrev.back();
myStackPrev.pop_back();
} else if(myCurrent != myFirst) {
myCurrent = myCurrent->getPrev();
} else {
aNext = NULL;
}
if(aNext != myCurrent
&& aNext != NULL) {
myStackNext.push_front(aNext);
if(myStackNext.size() > THE_UNDO_LIMIT) {
myStackNext.pop_back();
}
const size_t anItemId = myCurrent->getPosition();
anAutoLock.unlock();
signals.onPositionChange(anItemId);
return true;
}
return false;
} else if(myCurrent != myFirst) {
myCurrent = myCurrent->getPrev();
const size_t anItemId = myCurrent->getPosition();
anAutoLock.unlock();
signals.onPositionChange(anItemId);
return true;
} else if(myIsLoopFlag) {
return walkToLast();
}
return false;
}
void StPlayList::addToNode(const StHandle<StFileNode>& theFileNode,
const StString& thePathToAdd) {
StString aPath = theFileNode->getPath();
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
return;
} else if(aPath != myCurrent->getPath()) {
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(aPath == anItem->getPath()) {
myCurrent = anItem;
break;
}
}
}
StFileNode* aFileNode = myCurrent->getFileNode();
if(aFileNode->getParent() != &myFoldersRoot) {
// convert filenode to metafile with empty root
aFileNode->reParent(&myFoldersRoot);
aFileNode->setSubPath(StString());
aFileNode->add(new StFileNode(aPath, aFileNode));
}
aFileNode->add(new StFileNode(thePathToAdd, aFileNode));
}
bool StPlayList::getCurrentFile(StHandle<StFileNode>& theFileNode,
StHandle<StStereoParams>& theParams,
StHandle<StFileNode>& thePlsFile) {
theFileNode.nullify();
theParams.nullify();
thePlsFile.nullify();
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL) {
// empty list
return false;
}
StFileNode* aFileNode = myCurrent->getFileNode();
if(aFileNode == NULL) {
// invalid item
return false;
}
theFileNode = aFileNode->detach();
theParams = myCurrent->getParams();
if(!myPlsFile.isNull()) {
thePlsFile = myPlsFile->File;
}
return true;
}
void StPlayList::clearRecent() {
StMutexAuto anAutoLock(myMutex);
myRecent.clear();
myIsNewRecent = true;
}
bool StPlayList::isShuffle() const {
StMutexAuto anAutoLock(myMutex);
return myIsShuffle;
}
void StPlayList::setShuffle(bool theShuffle) {
StMutexAuto anAutoLock(myMutex);
myIsShuffle = theShuffle;
}
size_t StPlayList::getCurrentId() const {
StMutexAuto anAutoLock(myMutex);
return (myCurrent != NULL) ? myCurrent->getPosition() : 0;
}
bool StPlayList::walkToNext(const bool theToForce) {
StMutexAuto anAutoLock(myMutex);
if(myCurrent == NULL
|| (myToLoopSingle && !theToForce)) {
return false;
} else if(myIsShuffle && myItemsCount >= 3) {
StPlayItem* aPrev = myCurrent;
if(!myStackNext.empty()) {
myCurrent = myStackNext.front();
myStackNext.pop_front();
} else {
if((myPlayedCount >= (myItemsCount - 1)) || (myPlayedCount == 0)) {
// reset the playback counter
#ifdef _WIN32
FILETIME aTime;
GetSystemTimeAsFileTime(&aTime);
myRandGen.setSeed(aTime.dwLowDateTime);
#else
timeval aTime;
gettimeofday(&aTime, NULL);
myRandGen.setSeed(aTime.tv_usec);
#endif
myPlayedCount = 0;
myCurrent->setPlayedFlag(!myCurrent->getPlayedFlag());
ST_DEBUG_LOG("Restart the shuffle");
}
// determine next random position
const size_t aCurrPos = myCurrent->getPosition();
bool aCurrFlag = myCurrent->getPlayedFlag();
StPlayItem* aNextItem = myCurrent;
const size_t aNextPos = stMin(size_t(myRandGen.next() * myItemsCount), myItemsCount - 1);
if(aNextPos > aCurrPos) {
// forward direction
for(size_t aNextDiff = aNextPos - aCurrPos; aNextItem != NULL && aNextDiff != 0; --aNextDiff) {
aNextItem = aNextItem->getNext();
}
} else {
// backward direction
for(size_t aNextDiff = aCurrPos - aNextPos; aNextItem != NULL && aNextDiff != 0; --aNextDiff) {
aNextItem = aNextItem->getPrev();
}
}
if(aCurrFlag == aNextItem->getPlayedFlag()) {
// find nearest position not yet played - prefer item farther from current one
StPlayItem* aNextItem1 = aNextPos > aCurrPos ? aNextItem->getNext() : aNextItem->getPrev();
StPlayItem* aNextItem2 = aNextPos > aCurrPos ? aNextItem->getPrev() : aNextItem->getNext();
for(; aNextItem1 != NULL || aNextItem2 != NULL;) {
if(aNextItem1 != NULL) {
if(aCurrFlag != aNextItem1->getPlayedFlag()) {
aNextItem = aNextItem1;
break;
}
aNextItem1 = aNextPos > aCurrPos ? aNextItem1->getNext() : aNextItem1->getPrev();
}
if(aNextItem2 != NULL) {
if(aCurrFlag != aNextItem2->getPlayedFlag()) {
aNextItem = aNextItem2;
break;
}
aNextItem2 = aNextPos > aCurrPos ? aNextItem2->getPrev() : aNextItem2->getNext();
}
}
if(aCurrFlag == aNextItem->getPlayedFlag()) {
// something wrong!
ST_DEBUG_LOG("Disaster - next shuffle position not found!");
aCurrFlag = !aCurrFlag;
myPlayedCount = 0;
}
}
ST_DEBUG_LOG(aCurrPos + " -> " + aNextItem->getPosition());
++myPlayedCount;
aNextItem->setPlayedFlag(aCurrFlag);
myCurrent = aNextItem;
}
if(aPrev != myCurrent
&& aPrev != NULL) {
myStackPrev.push_back(aPrev);
if(myStackPrev.size() > THE_UNDO_LIMIT) {
myStackPrev.pop_front();
}
}
const size_t anItemId = myCurrent->getPosition();
anAutoLock.unlock();
signals.onPositionChange(anItemId);
return true;
} else if(myCurrent != myLast) {
myCurrent = myCurrent->getNext();
const size_t anItemId = myCurrent->getPosition();
anAutoLock.unlock();
signals.onPositionChange(anItemId);
return true;
} else if(myIsLoopFlag) {
return walkToFirst();
}
return false;
}
void StPlayList::setLoopSingle(const bool theValue) {
StMutexAuto anAutoLock(myMutex);
myToLoopSingle = theValue;
}
void StPlayList::open(const StCString& thePath,
const StCString& theItem) {
StMutexAuto anAutoLock(myMutex);
// check if it is recently played playlist
bool hasTarget = !theItem.isEmpty();
StString aTarget = hasTarget ? theItem : thePath;
if(!hasTarget) {
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
const StHandle<StRecentItem>& aRecent = myRecent[anIter];
const StHandle<StFileNode>& aFile = aRecent->File;
if(aFile->size() != 1) {
continue;
}
if(thePath.isEquals(aFile->getPath())) {
hasTarget = true;
aTarget = aFile->getValue(0)->getSubPath();
break;
}
}
}
clear();
int aSearchDeep = myRecursionDeep;
StString aFolderPath;
StString aFileName;
if(StFolder::isFolder(thePath)) {
// add all files from the folder and subfolders
aFolderPath = thePath;
aSearchDeep = myRecursionDeep;
myPlsFile = addRecentFile(StFileNode(thePath)); // append to recent files list
} else if(StFileNode::isFileExists(thePath)) {
// search only current folder
StFileNode::getFolderAndFile(thePath, aFolderPath, aFileName);
aSearchDeep = 1;
bool hasSupportedExt = false;
StString anExt = StFileNode::getExtension(aFileName);
for(size_t anExtId = 0; anExtId < myExtensions.size() && !hasSupportedExt; ++anExtId) {
hasSupportedExt = anExt.isEqualsIgnoreCase(myExtensions[anExtId]);
}
// parse m3u playlist
if(anExt.isEqualsIgnoreCase(stCString("m3u"))) {
StRawFile aRawFile(thePath);
if(aRawFile.readFile()) {
StString aTitle;
char* anIter = (char* )aRawFile.getBuffer();
if(anIter[0] == '\xEF' && anIter[1] == '\xBB' && anIter[2] == '\xBF') {
// skip BOM for UTF8 written by some stupid programs
anIter += 3;
}
while(anIter != NULL) {
anIter = parseM3UIter(anIter, aTitle);
}
myPlsFile = addRecentFile(StFileNode(thePath)); // append to recent files list
if(hasTarget) {
// set current item
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(anItem->getPath() == aTarget) {
myCurrent = anItem;
break;
}
}
}
anAutoLock.unlock();
signals.onPlaylistChange();
return;
}
}
if(!hasSupportedExt) {
// file with unsupported extension?
StFileNode* aFileNode = new StFileNode(thePath, &myFoldersRoot);
myFoldersRoot.add(aFileNode);
addPlayItem(new StPlayItem(aFileNode, myDefStParams));
}
} else {
// not a filesystem element - probably url or invalid path
StFileNode* aFileNode = new StFileNode(thePath, &myFoldersRoot);
myFoldersRoot.add(aFileNode);
addRecentFile(*aFileNode); // append to recent files list
addPlayItem(new StPlayItem(aFileNode, myDefStParams));
anAutoLock.unlock();
signals.onPlaylistChange();
return;
}
StFolder* aSubFolder = new StFolder(aFolderPath, &myFoldersRoot);
aSubFolder->init(myExtensions, aSearchDeep);
myFoldersRoot.add(aSubFolder);
addToPlayList(aSubFolder);
myCurrent = myFirst;
if(hasTarget || !aFileName.isEmpty()) {
// set current item
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(anItem->getPath() == aTarget) {
myCurrent = anItem;
if(myPlsFile.isNull()) {
addRecentFile(*anItem->getFileNode()); // append to recent files list
}
break;
}
}
}
anAutoLock.unlock();
signals.onPlaylistChange();
}
StString StPlayList::getCurrentTitle() const {
StMutexAuto anAutoLock(myMutex);
return (myCurrent != NULL) ? myCurrent->getTitle() : StString();
}
