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AiffAudioFormat: support for reading CATE block metadata.

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This commit is contained in:
jules 2013-06-14 19:28:55 +01:00
parent 77335b4baa
commit 3891145af4
1 changed files with 49 additions and 0 deletions
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49
modules/juce_audio_formats/codecs/juce_AiffAudioFormat.cpp
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@ -194,6 +194,50 @@ namespace AiffFileHelpers
#pragma pack (pop)
#endif
//==============================================================================
static String readCATEChunk (InputStream& input, const uint32 length)
{
MemoryBlock mb;
input.skipNextBytes (4);
input.readIntoMemoryBlock (mb, length - 4);
static const char* appleGenres[] =
{
"Rock/Blues",
"Electronic/Dance",
"Jazz",
"Urban",
"World/Ethnic",
"Cinematic/New Age",
"Orchestral",
"Country/Folk",
"Experimental",
"Other Genre",
nullptr
};
const StringArray genres (appleGenres);
StringArray tagsArray;
int bytesLeft = (int) mb.getSize();
const char* data = static_cast <const char*> (mb.getData());
while (bytesLeft > 0)
{
const String tag (CharPointer_UTF8 (data),
CharPointer_UTF8 (data + bytesLeft));
if (tag.isNotEmpty())
tagsArray.add (data);
const int numBytesInTag = genres.contains (tag) ? 118 : 50;
data += numBytesInTag;
bytesLeft -= numBytesInTag;
}
return tagsArray.joinIntoString (";");
}
//==============================================================================
namespace MarkChunk
{
@ -473,6 +517,11 @@ public:
{
AiffFileHelpers::BASCChunk (*input).addToMetadata (metadataValues);
}
else if (type == chunkName ("cate"))
{
metadataValues.set (AiffAudioFormat::appleTag,
AiffFileHelpers::readCATEChunk (*input, length));;
}
else if ((hasGotVer && hasGotData && hasGotType)
|| chunkEnd < input->getPosition()
|| input->isExhausted())