AudioFormatReader* AudioFormatManager::createReaderFor (InputStream* audioFileStream)
{
// you need to actually register some formats before the manager can
// use them to open a file!
jassert (getNumKnownFormats() > 0);
ScopedPointer <InputStream> in (audioFileStream);
if (in != nullptr)
{
const int64 originalStreamPos = in->getPosition();
for (int i = 0; i < getNumKnownFormats(); ++i)
{
AudioFormatReader* const r = getKnownFormat(i)->createReaderFor (in, false);
if (r != nullptr)
{
in.release();
return r;
}
in->setPosition (originalStreamPos);
// the stream that is passed-in must be capable of being repositioned so
// that all the formats can have a go at opening it.
jassert (in->getPosition() == originalStreamPos);
}
}
return nullptr;
}
//==============================================================================
AudioFormatReader* AudioFormatManager::createReaderFor (const File& file)
{
// you need to actually register some formats before the manager can
// use them to open a file!
jassert (getNumKnownFormats() > 0);
for (int i = 0; i < getNumKnownFormats(); ++i)
{
AudioFormat* const af = getKnownFormat(i);
if (af->canHandleFile (file))
{
InputStream* const in = file.createInputStream();
if (in != nullptr)
{
AudioFormatReader* const r = af->createReaderFor (in, true);
if (r != nullptr)
return r;
}
}
}
return nullptr;
}
String AudioFormatManager::getWildcardForAllFormats() const
{
StringArray allExtensions;
int i;
for (i = 0; i < getNumKnownFormats(); ++i)
allExtensions.addArray (getKnownFormat (i)->getFileExtensions());
allExtensions.trim();
allExtensions.removeEmptyStrings();
String s;
for (i = 0; i < allExtensions.size(); ++i)
{
s << '*';
if (! allExtensions[i].startsWithChar ('.'))
s << '.';
s << allExtensions[i];
if (i < allExtensions.size() - 1)
s << ';';
}
return s;
}
AudioFormat* AudioFormatManager::findFormatForFileExtension (const String& fileExtension) const
{
if (! fileExtension.startsWithChar ('.'))
return findFormatForFileExtension ("." + fileExtension);
for (int i = 0; i < getNumKnownFormats(); ++i)
if (getKnownFormat(i)->getFileExtensions().contains (fileExtension, true))
return getKnownFormat(i);
return nullptr;
}
//==============================================================================
void AudioFormatManager::registerFormat (AudioFormat* newFormat, const bool makeThisTheDefaultFormat)
{
jassert (newFormat != nullptr);
if (newFormat != nullptr)
{
#if JUCE_DEBUG
for (int i = getNumKnownFormats(); --i >= 0;)
{
if (getKnownFormat (i)->getFormatName() == newFormat->getFormatName())
{
jassertfalse; // trying to add the same format twice!
}
}
#endif
if (makeThisTheDefaultFormat)
defaultFormatIndex = getNumKnownFormats();
knownFormats.add (newFormat);
}
}
String AudioFormatManager::getWildcardForAllFormats() const
{
StringArray extensions;
for (int i = 0; i < getNumKnownFormats(); ++i)
extensions.addArray (getKnownFormat(i)->getFileExtensions());
extensions.trim();
extensions.removeEmptyStrings();
for (int i = 0; i < extensions.size(); ++i)
extensions.set (i, (extensions[i].startsWithChar ('.') ? "*" : "*.") + extensions[i]);
extensions.removeDuplicates (true);
return extensions.joinIntoString (";");
}
