OpenShot Audio Library | OpenShotAudio 0.3.2
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#include <juce_MemoryInputStream.h>
Allows a block of data to be accessed as a stream.
This can either be used to refer to a shared block of memory, or can make its own internal copy of the data when the MemoryInputStream is created.
Definition at line 35 of file juce_MemoryInputStream.h.
juce::MemoryInputStream::MemoryInputStream | ( | const void * | sourceData, |
size_t | sourceDataSize, | ||
bool | keepInternalCopyOfData | ||
) |
Creates a MemoryInputStream.
sourceData | the block of data to use as the stream's source |
sourceDataSize | the number of bytes in the source data block |
keepInternalCopyOfData | if false, the stream will just keep a pointer to the source data, so this data shouldn't be changed for the lifetime of the stream; if this parameter is true, the stream will make its own copy of the data and use that. |
Definition at line 26 of file juce_MemoryInputStream.cpp.
juce::MemoryInputStream::MemoryInputStream | ( | const MemoryBlock & | data, |
bool | keepInternalCopyOfData | ||
) |
Creates a MemoryInputStream.
data | a block of data to use as the stream's source |
keepInternalCopyOfData | if false, the stream will just keep a reference to the source data, so this data shouldn't be changed for the lifetime of the stream; if this parameter is true, the stream will make its own copy of the data and use that. |
Definition at line 37 of file juce_MemoryInputStream.cpp.
juce::MemoryInputStream::MemoryInputStream | ( | MemoryBlock && | blockToTake | ) |
Creates a stream by moving from a MemoryBlock.
Definition at line 48 of file juce_MemoryInputStream.cpp.
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override |
Destructor.
Definition at line 54 of file juce_MemoryInputStream.cpp.
Returns a pointer to the source data block from which this stream is reading.
Definition at line 72 of file juce_MemoryInputStream.h.
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inlinenoexcept |
Returns the number of bytes of source data in the block from which this stream is reading.
Definition at line 75 of file juce_MemoryInputStream.h.
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overridevirtual |
Returns the offset of the next byte that will be read from the stream.
Implements juce::InputStream.
Definition at line 92 of file juce_MemoryInputStream.cpp.
Referenced by skipNextBytes().
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overridevirtual |
Returns the total number of bytes available for reading in this stream.
Note that this is the number of bytes available from the start of the stream, not from the current position.
If the size of the stream isn't actually known, this will return -1.
Implements juce::InputStream.
Definition at line 58 of file juce_MemoryInputStream.cpp.
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overridevirtual |
Returns true if the stream has no more data to read.
Implements juce::InputStream.
Definition at line 81 of file juce_MemoryInputStream.cpp.
Reads some data from the stream into a memory buffer.
This is the only read method that subclasses actually need to implement, as the InputStream base class implements the other read methods in terms of this one (although it's often more efficient for subclasses to implement them directly).
destBuffer | the destination buffer for the data. This must not be null. |
maxBytesToRead | the maximum number of bytes to read - make sure the memory block passed in is big enough to contain this many bytes. This value must not be negative. |
Implements juce::InputStream.
Definition at line 63 of file juce_MemoryInputStream.cpp.
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overridevirtual |
Tries to move the current read position of the stream.
The position is an absolute number of bytes from the stream's start.
Some streams might not be able to do this, in which case they should do nothing and return false. Others might be able to manage it by resetting themselves and skipping to the correct position, although this is obviously a bit slow.
Implements juce::InputStream.
Definition at line 86 of file juce_MemoryInputStream.cpp.
Referenced by skipNextBytes().
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overridevirtual |
Reads and discards a number of bytes from the stream.
Some input streams might implement this more efficiently, but the base class will just keep reading data until the requisite number of bytes have been done. For large skips it may be quicker to call setPosition() with the required position.
Reimplemented from juce::InputStream.
Definition at line 97 of file juce_MemoryInputStream.cpp.