OpenShot Library | libopenshot-audio
0.2.0
juce_BufferedInputStream.h
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/** @weakgroup juce_core-streams
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* @{
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*/
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace
juce
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{
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//==============================================================================
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/** Wraps another input stream, and reads from it using an intermediate buffer
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If you're using an input stream such as a file input stream, and making lots of
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small read accesses to it, it's probably sensible to wrap it in one of these,
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so that the source stream gets accessed in larger chunk sizes, meaning less
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work for the underlying stream.
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@tags{Core}
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*/
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class
JUCE_API
BufferedInputStream
:
public
InputStream
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{
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public
:
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//==============================================================================
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/** Creates a BufferedInputStream from an input source.
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@param sourceStream the source stream to read from
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@param bufferSize the size of reservoir to use to buffer the source
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@param deleteSourceWhenDestroyed whether the sourceStream that is passed in should be
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deleted by this object when it is itself deleted.
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*/
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BufferedInputStream
(
InputStream
* sourceStream,
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int
bufferSize,
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bool
deleteSourceWhenDestroyed);
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/** Creates a BufferedInputStream from an input source.
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@param sourceStream the source stream to read from - the source stream must not
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be deleted until this object has been destroyed.
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@param bufferSize the size of reservoir to use to buffer the source
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*/
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BufferedInputStream
(
InputStream
& sourceStream,
int
bufferSize);
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/** Destructor.
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This may also delete the source stream, if that option was chosen when the
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buffered stream was created.
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*/
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~
BufferedInputStream
()
override
;
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//==============================================================================
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/** Returns the next byte that would be read by a call to readByte() */
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char
peekByte();
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int64 getTotalLength()
override
;
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int64 getPosition()
override
;
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bool
setPosition (int64 newPosition)
override
;
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int
read (
void
* destBuffer,
int
maxBytesToRead)
override
;
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String
readString()
override
;
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bool
isExhausted()
override
;
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private
:
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//==============================================================================
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OptionalScopedPointer<InputStream>
source;
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int
bufferSize;
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int64 position, lastReadPos = 0, bufferStart, bufferOverlap = 128;
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HeapBlock<char>
buffer;
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bool
ensureBuffered();
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (
BufferedInputStream
)
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};
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}
// namespace juce
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/** @}*/
juce::HeapBlock< char >
juce::InputStream
The base class for streams that read data.
Definition:
juce_InputStream.h:40
JUCE_API
#define JUCE_API
This macro is added to all JUCE public class declarations.
Definition:
juce_StandardHeader.h:143
juce::BufferedInputStream
Wraps another input stream, and reads from it using an intermediate buffer.
Definition:
juce_BufferedInputStream.h:40
juce::OptionalScopedPointer
Holds a pointer to an object which can optionally be deleted when this pointer goes out of scope.
Definition:
juce_OptionalScopedPointer.h:43
juce::String
The JUCE String class!
Definition:
juce_String.h:42
juce_core
streams
juce_BufferedInputStream.h
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