Exemple #1
0
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;
}
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;
}
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 (";");
}
//==============================================================================
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);
    }
}
AudioFormat* AudioFormatManager::getDefaultFormat() const
{
    return getKnownFormat (defaultFormatIndex);
}