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Iterate over all chunks in the audio file, whose chunk ID starts with chunk_id. The loop variable is assigned a seq[byte] with the data of each matching chunk.
SmplChunk = object
manufacturer*: array[4, byte]
product*: int32
samplePeriod*: int32
midiUnityNote*: int32
midiPitchFraction*: int32
smpteFormat*: int32
smpteOffset*: int32
loopCount*: int32
samplerDataLen*: int32
loops*: UncheckedArray[SmplLoop]
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SmplLoop = object
id*: int32
loopType*: int32
startPos*: int32
endPos*: int32
fraction*: int32
playCount*: int32
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iterator chunks(sndfile: ptr SndFile; chunk_id: string): seq[byte] {.
...raises: [ValueError, IOError], tags: [], forbids: [].}-
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