migrating to the latest JUCE version
This commit is contained in:
Nikolai Rodionov
@ -1,172 +1,172 @@
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2020 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
|
||||
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
|
||||
|
||||
End User License Agreement: www.juce.com/juce-6-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
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||||
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||||
namespace juce
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||||
{
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||||
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#if JUCE_USE_CDBURNER || DOXYGEN
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//==============================================================================
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/**
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@tags{Audio}
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*/
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class AudioCDBurner : public ChangeBroadcaster
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{
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public:
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//==============================================================================
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/** Returns a list of available optical drives.
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||||
Use openDevice() to open one of the items from this list.
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*/
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||||
static StringArray findAvailableDevices();
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||||
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/** Tries to open one of the optical drives.
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||||
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The deviceIndex is an index into the array returned by findAvailableDevices().
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*/
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||||
static AudioCDBurner* openDevice (const int deviceIndex);
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/** Destructor. */
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~AudioCDBurner();
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//==============================================================================
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||||
enum DiskState
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||||
{
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||||
unknown, /**< An error condition, if the device isn't responding. */
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||||
trayOpen, /**< The drive is currently open. Note that a slot-loading drive
|
||||
may seem to be permanently open. */
|
||||
noDisc, /**< The drive has no disk in it. */
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||||
writableDiskPresent, /**< The drive contains a writeable disk. */
|
||||
readOnlyDiskPresent /**< The drive contains a read-only disk. */
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||||
};
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||||
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/** Returns the current status of the device.
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||||
|
||||
To get informed when the drive's status changes, attach a ChangeListener to
|
||||
the AudioCDBurner.
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*/
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||||
DiskState getDiskState() const;
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/** Returns true if there's a writable disk in the drive. */
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bool isDiskPresent() const;
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/** Sends an eject signal to the drive.
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The eject will happen asynchronously, so you can use getDiskState() and
|
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waitUntilStateChange() to monitor its progress.
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*/
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bool openTray();
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/** Blocks the current thread until the drive's state changes, or until the timeout expires.
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@returns the device's new state
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*/
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DiskState waitUntilStateChange (int timeOutMilliseconds);
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//==============================================================================
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/** Returns the set of possible write speeds that the device can handle.
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These are as a multiple of 'normal' speed, so e.g. '24x' returns 24, etc.
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||||
Note that if there's no media present in the drive, this value may be unavailable!
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||||
@see setWriteSpeed, getWriteSpeed
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*/
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||||
Array<int> getAvailableWriteSpeeds() const;
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||||
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||||
//==============================================================================
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||||
/** Tries to enable or disable buffer underrun safety on devices that support it.
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||||
@returns true if it's now enabled. If the device doesn't support it, this
|
||||
will always return false.
|
||||
*/
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||||
bool setBufferUnderrunProtection (bool shouldBeEnabled);
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//==============================================================================
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||||
/** Returns the number of free blocks on the disk.
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There are 75 blocks per second, at 44100Hz.
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*/
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int getNumAvailableAudioBlocks() const;
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/** Adds a track to be written.
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The source passed-in here will be kept by this object, and it will
|
||||
be used and deleted at some point in the future, either during the
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burn() method or when this AudioCDBurner object is deleted. Your caller
|
||||
method shouldn't keep a reference to it or use it again after passing
|
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it in here.
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*/
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bool addAudioTrack (AudioSource* source, int numSamples);
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//==============================================================================
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/** Receives progress callbacks during a cd-burn operation.
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@see AudioCDBurner::burn()
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*/
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||||
class BurnProgressListener
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{
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public:
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BurnProgressListener() noexcept {}
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||||
virtual ~BurnProgressListener() {}
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||||
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/** Called at intervals to report on the progress of the AudioCDBurner.
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To cancel the burn, return true from this method.
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*/
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virtual bool audioCDBurnProgress (float proportionComplete) = 0;
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};
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/** Runs the burn process.
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This method will block until the operation is complete.
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@param listener the object to receive callbacks about progress
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@param ejectDiscAfterwards whether to eject the disk after the burn completes
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@param performFakeBurnForTesting if true, no data will actually be written to the disk
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@param writeSpeed one of the write speeds from getAvailableWriteSpeeds(), or
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0 or less to mean the fastest speed.
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||||
*/
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||||
String burn (BurnProgressListener* listener,
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bool ejectDiscAfterwards,
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bool performFakeBurnForTesting,
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int writeSpeed);
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||||
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/** If a burn operation is currently in progress, this tells it to stop
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as soon as possible.
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It's also possible to stop the burn process by returning true from
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BurnProgressListener::audioCDBurnProgress()
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*/
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void abortBurn();
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private:
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//==============================================================================
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AudioCDBurner (const int deviceIndex);
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||||
|
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class Pimpl;
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std::unique_ptr<Pimpl> pimpl;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioCDBurner)
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||||
};
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||||
|
||||
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||||
#endif
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||||
|
||||
} // namespace juce
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2022 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
|
||||
Agreement and JUCE Privacy Policy.
|
||||
|
||||
End User License Agreement: www.juce.com/juce-7-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
#if JUCE_USE_CDBURNER || DOXYGEN
|
||||
|
||||
|
||||
//==============================================================================
|
||||
/**
|
||||
|
||||
@tags{Audio}
|
||||
*/
|
||||
class AudioCDBurner : public ChangeBroadcaster
|
||||
{
|
||||
public:
|
||||
//==============================================================================
|
||||
/** Returns a list of available optical drives.
|
||||
|
||||
Use openDevice() to open one of the items from this list.
|
||||
*/
|
||||
static StringArray findAvailableDevices();
|
||||
|
||||
/** Tries to open one of the optical drives.
|
||||
|
||||
The deviceIndex is an index into the array returned by findAvailableDevices().
|
||||
*/
|
||||
static AudioCDBurner* openDevice (const int deviceIndex);
|
||||
|
||||
/** Destructor. */
|
||||
~AudioCDBurner();
|
||||
|
||||
//==============================================================================
|
||||
enum DiskState
|
||||
{
|
||||
unknown, /**< An error condition, if the device isn't responding. */
|
||||
trayOpen, /**< The drive is currently open. Note that a slot-loading drive
|
||||
may seem to be permanently open. */
|
||||
noDisc, /**< The drive has no disk in it. */
|
||||
writableDiskPresent, /**< The drive contains a writeable disk. */
|
||||
readOnlyDiskPresent /**< The drive contains a read-only disk. */
|
||||
};
|
||||
|
||||
/** Returns the current status of the device.
|
||||
|
||||
To get informed when the drive's status changes, attach a ChangeListener to
|
||||
the AudioCDBurner.
|
||||
*/
|
||||
DiskState getDiskState() const;
|
||||
|
||||
/** Returns true if there's a writable disk in the drive. */
|
||||
bool isDiskPresent() const;
|
||||
|
||||
/** Sends an eject signal to the drive.
|
||||
The eject will happen asynchronously, so you can use getDiskState() and
|
||||
waitUntilStateChange() to monitor its progress.
|
||||
*/
|
||||
bool openTray();
|
||||
|
||||
/** Blocks the current thread until the drive's state changes, or until the timeout expires.
|
||||
@returns the device's new state
|
||||
*/
|
||||
DiskState waitUntilStateChange (int timeOutMilliseconds);
|
||||
|
||||
//==============================================================================
|
||||
/** Returns the set of possible write speeds that the device can handle.
|
||||
These are as a multiple of 'normal' speed, so e.g. '24x' returns 24, etc.
|
||||
Note that if there's no media present in the drive, this value may be unavailable!
|
||||
@see setWriteSpeed, getWriteSpeed
|
||||
*/
|
||||
Array<int> getAvailableWriteSpeeds() const;
|
||||
|
||||
//==============================================================================
|
||||
/** Tries to enable or disable buffer underrun safety on devices that support it.
|
||||
@returns true if it's now enabled. If the device doesn't support it, this
|
||||
will always return false.
|
||||
*/
|
||||
bool setBufferUnderrunProtection (bool shouldBeEnabled);
|
||||
|
||||
//==============================================================================
|
||||
/** Returns the number of free blocks on the disk.
|
||||
|
||||
There are 75 blocks per second, at 44100Hz.
|
||||
*/
|
||||
int getNumAvailableAudioBlocks() const;
|
||||
|
||||
/** Adds a track to be written.
|
||||
|
||||
The source passed-in here will be kept by this object, and it will
|
||||
be used and deleted at some point in the future, either during the
|
||||
burn() method or when this AudioCDBurner object is deleted. Your caller
|
||||
method shouldn't keep a reference to it or use it again after passing
|
||||
it in here.
|
||||
*/
|
||||
bool addAudioTrack (AudioSource* source, int numSamples);
|
||||
|
||||
//==============================================================================
|
||||
/** Receives progress callbacks during a cd-burn operation.
|
||||
@see AudioCDBurner::burn()
|
||||
*/
|
||||
class BurnProgressListener
|
||||
{
|
||||
public:
|
||||
BurnProgressListener() noexcept {}
|
||||
virtual ~BurnProgressListener() {}
|
||||
|
||||
/** Called at intervals to report on the progress of the AudioCDBurner.
|
||||
|
||||
To cancel the burn, return true from this method.
|
||||
*/
|
||||
virtual bool audioCDBurnProgress (float proportionComplete) = 0;
|
||||
};
|
||||
|
||||
/** Runs the burn process.
|
||||
This method will block until the operation is complete.
|
||||
|
||||
@param listener the object to receive callbacks about progress
|
||||
@param ejectDiscAfterwards whether to eject the disk after the burn completes
|
||||
@param performFakeBurnForTesting if true, no data will actually be written to the disk
|
||||
@param writeSpeed one of the write speeds from getAvailableWriteSpeeds(), or
|
||||
0 or less to mean the fastest speed.
|
||||
*/
|
||||
String burn (BurnProgressListener* listener,
|
||||
bool ejectDiscAfterwards,
|
||||
bool performFakeBurnForTesting,
|
||||
int writeSpeed);
|
||||
|
||||
/** If a burn operation is currently in progress, this tells it to stop
|
||||
as soon as possible.
|
||||
|
||||
It's also possible to stop the burn process by returning true from
|
||||
BurnProgressListener::audioCDBurnProgress()
|
||||
*/
|
||||
void abortBurn();
|
||||
|
||||
private:
|
||||
//==============================================================================
|
||||
AudioCDBurner (const int deviceIndex);
|
||||
|
||||
class Pimpl;
|
||||
std::unique_ptr<Pimpl> pimpl;
|
||||
|
||||
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioCDBurner)
|
||||
};
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace juce
|
||||
|
||||
@ -1,63 +1,63 @@
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2020 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
|
||||
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
|
||||
|
||||
End User License Agreement: www.juce.com/juce-6-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
#if JUCE_USE_CDREADER
|
||||
|
||||
int AudioCDReader::getNumTracks() const
|
||||
{
|
||||
return trackStartSamples.size() - 1;
|
||||
}
|
||||
|
||||
int AudioCDReader::getPositionOfTrackStart (int trackNum) const
|
||||
{
|
||||
return trackStartSamples [trackNum];
|
||||
}
|
||||
|
||||
const Array<int>& AudioCDReader::getTrackOffsets() const
|
||||
{
|
||||
return trackStartSamples;
|
||||
}
|
||||
|
||||
int AudioCDReader::getCDDBId()
|
||||
{
|
||||
int checksum = 0;
|
||||
const int numTracks = getNumTracks();
|
||||
|
||||
for (int i = 0; i < numTracks; ++i)
|
||||
for (int offset = (trackStartSamples.getUnchecked(i) + 88200) / 44100; offset > 0; offset /= 10)
|
||||
checksum += offset % 10;
|
||||
|
||||
const int length = (trackStartSamples.getLast() - trackStartSamples.getFirst()) / 44100;
|
||||
|
||||
// CCLLLLTT: checksum, length, tracks
|
||||
return ((checksum & 0xff) << 24) | (length << 8) | numTracks;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace juce
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2022 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
|
||||
Agreement and JUCE Privacy Policy.
|
||||
|
||||
End User License Agreement: www.juce.com/juce-7-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
#if JUCE_USE_CDREADER
|
||||
|
||||
int AudioCDReader::getNumTracks() const
|
||||
{
|
||||
return trackStartSamples.size() - 1;
|
||||
}
|
||||
|
||||
int AudioCDReader::getPositionOfTrackStart (int trackNum) const
|
||||
{
|
||||
return trackStartSamples [trackNum];
|
||||
}
|
||||
|
||||
const Array<int>& AudioCDReader::getTrackOffsets() const
|
||||
{
|
||||
return trackStartSamples;
|
||||
}
|
||||
|
||||
int AudioCDReader::getCDDBId()
|
||||
{
|
||||
int checksum = 0;
|
||||
const int numTracks = getNumTracks();
|
||||
|
||||
for (int i = 0; i < numTracks; ++i)
|
||||
for (int offset = (trackStartSamples.getUnchecked(i) + 88200) / 44100; offset > 0; offset /= 10)
|
||||
checksum += offset % 10;
|
||||
|
||||
const int length = (trackStartSamples.getLast() - trackStartSamples.getFirst()) / 44100;
|
||||
|
||||
// CCLLLLTT: checksum, length, tracks
|
||||
return ((checksum & 0xff) << 24) | (length << 8) | numTracks;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace juce
|
||||
|
||||
@ -1,177 +1,177 @@
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2020 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
|
||||
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
|
||||
|
||||
End User License Agreement: www.juce.com/juce-6-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
#if JUCE_USE_CDREADER || DOXYGEN
|
||||
|
||||
//==============================================================================
|
||||
/**
|
||||
A type of AudioFormatReader that reads from an audio CD.
|
||||
|
||||
One of these can be used to read a CD as if it's one big audio stream. Use the
|
||||
getPositionOfTrackStart() method to find where the individual tracks are
|
||||
within the stream.
|
||||
|
||||
@see AudioFormatReader
|
||||
|
||||
@tags{Audio}
|
||||
*/
|
||||
class JUCE_API AudioCDReader : public AudioFormatReader
|
||||
{
|
||||
public:
|
||||
//==============================================================================
|
||||
/** Returns a list of names of Audio CDs currently available for reading.
|
||||
|
||||
If there's a CD drive but no CD in it, this might return an empty list, or
|
||||
possibly a device that can be opened but which has no tracks, depending
|
||||
on the platform.
|
||||
|
||||
@see createReaderForCD
|
||||
*/
|
||||
static StringArray getAvailableCDNames();
|
||||
|
||||
/** Tries to create an AudioFormatReader that can read from an Audio CD.
|
||||
|
||||
@param index the index of one of the available CDs - use getAvailableCDNames()
|
||||
to find out how many there are.
|
||||
@returns a new AudioCDReader object, or nullptr if it couldn't be created. The
|
||||
caller will be responsible for deleting the object returned.
|
||||
*/
|
||||
static AudioCDReader* createReaderForCD (const int index);
|
||||
|
||||
//==============================================================================
|
||||
/** Destructor. */
|
||||
~AudioCDReader() override;
|
||||
|
||||
/** Implementation of the AudioFormatReader method. */
|
||||
bool readSamples (int** destSamples, int numDestChannels, int startOffsetInDestBuffer,
|
||||
int64 startSampleInFile, int numSamples) override;
|
||||
|
||||
/** Checks whether the CD has been removed from the drive. */
|
||||
bool isCDStillPresent() const;
|
||||
|
||||
/** Returns the total number of tracks (audio + data). */
|
||||
int getNumTracks() const;
|
||||
|
||||
/** Finds the sample offset of the start of a track.
|
||||
@param trackNum the track number, where trackNum = 0 is the first track
|
||||
and trackNum = getNumTracks() means the end of the CD.
|
||||
*/
|
||||
int getPositionOfTrackStart (int trackNum) const;
|
||||
|
||||
/** Returns true if a given track is an audio track.
|
||||
@param trackNum the track number, where 0 is the first track.
|
||||
*/
|
||||
bool isTrackAudio (int trackNum) const;
|
||||
|
||||
/** Returns an array of sample offsets for the start of each track, followed by
|
||||
the sample position of the end of the CD.
|
||||
*/
|
||||
const Array<int>& getTrackOffsets() const;
|
||||
|
||||
/** Refreshes the object's table of contents.
|
||||
|
||||
If the disc has been ejected and a different one put in since this
|
||||
object was created, this will cause it to update its idea of how many tracks
|
||||
there are, etc.
|
||||
*/
|
||||
void refreshTrackLengths();
|
||||
|
||||
/** Enables scanning for indexes within tracks.
|
||||
@see getLastIndex
|
||||
*/
|
||||
void enableIndexScanning (bool enabled);
|
||||
|
||||
/** Returns the index number found during the last read() call.
|
||||
|
||||
Index scanning is turned off by default - turn it on with enableIndexScanning().
|
||||
|
||||
Then when the read() method is called, if it comes across an index within that
|
||||
block, the index number is stored and returned by this method.
|
||||
|
||||
Some devices might not support indexes, of course.
|
||||
|
||||
(If you don't know what CD indexes are, it's unlikely you'll ever need them).
|
||||
|
||||
@see enableIndexScanning
|
||||
*/
|
||||
int getLastIndex() const;
|
||||
|
||||
/** Scans a track to find the position of any indexes within it.
|
||||
@param trackNumber the track to look in, where 0 is the first track on the disc
|
||||
@returns an array of sample positions of any index points found (not including
|
||||
the index that marks the start of the track)
|
||||
*/
|
||||
Array<int> findIndexesInTrack (const int trackNumber);
|
||||
|
||||
/** Returns the CDDB id number for the CD.
|
||||
It's not a great way of identifying a disc, but it's traditional.
|
||||
*/
|
||||
int getCDDBId();
|
||||
|
||||
/** Tries to eject the disk.
|
||||
Ejecting the disk might not actually be possible, e.g. if some other process is using it.
|
||||
*/
|
||||
void ejectDisk();
|
||||
|
||||
//==============================================================================
|
||||
enum
|
||||
{
|
||||
framesPerSecond = 75,
|
||||
samplesPerFrame = 44100 / framesPerSecond
|
||||
};
|
||||
|
||||
private:
|
||||
//==============================================================================
|
||||
Array<int> trackStartSamples;
|
||||
|
||||
#if JUCE_MAC
|
||||
File volumeDir;
|
||||
Array<File> tracks;
|
||||
int currentReaderTrack;
|
||||
std::unique_ptr<AudioFormatReader> reader;
|
||||
AudioCDReader (const File& volume);
|
||||
|
||||
#elif JUCE_WINDOWS
|
||||
bool audioTracks [100];
|
||||
void* handle;
|
||||
MemoryBlock buffer;
|
||||
bool indexingEnabled;
|
||||
int lastIndex, firstFrameInBuffer, samplesInBuffer;
|
||||
AudioCDReader (void* handle);
|
||||
int getIndexAt (int samplePos);
|
||||
|
||||
#elif JUCE_LINUX || JUCE_BSD
|
||||
AudioCDReader();
|
||||
#endif
|
||||
|
||||
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioCDReader)
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace juce
|
||||
/*
|
||||
==============================================================================
|
||||
|
||||
This file is part of the JUCE library.
|
||||
Copyright (c) 2022 - Raw Material Software Limited
|
||||
|
||||
JUCE is an open source library subject to commercial or open-source
|
||||
licensing.
|
||||
|
||||
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
|
||||
Agreement and JUCE Privacy Policy.
|
||||
|
||||
End User License Agreement: www.juce.com/juce-7-licence
|
||||
Privacy Policy: www.juce.com/juce-privacy-policy
|
||||
|
||||
Or: You may also use this code under the terms of the GPL v3 (see
|
||||
www.gnu.org/licenses).
|
||||
|
||||
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
||||
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
||||
DISCLAIMED.
|
||||
|
||||
==============================================================================
|
||||
*/
|
||||
|
||||
namespace juce
|
||||
{
|
||||
|
||||
#if JUCE_USE_CDREADER || DOXYGEN
|
||||
|
||||
//==============================================================================
|
||||
/**
|
||||
A type of AudioFormatReader that reads from an audio CD.
|
||||
|
||||
One of these can be used to read a CD as if it's one big audio stream. Use the
|
||||
getPositionOfTrackStart() method to find where the individual tracks are
|
||||
within the stream.
|
||||
|
||||
@see AudioFormatReader
|
||||
|
||||
@tags{Audio}
|
||||
*/
|
||||
class JUCE_API AudioCDReader : public AudioFormatReader
|
||||
{
|
||||
public:
|
||||
//==============================================================================
|
||||
/** Returns a list of names of Audio CDs currently available for reading.
|
||||
|
||||
If there's a CD drive but no CD in it, this might return an empty list, or
|
||||
possibly a device that can be opened but which has no tracks, depending
|
||||
on the platform.
|
||||
|
||||
@see createReaderForCD
|
||||
*/
|
||||
static StringArray getAvailableCDNames();
|
||||
|
||||
/** Tries to create an AudioFormatReader that can read from an Audio CD.
|
||||
|
||||
@param index the index of one of the available CDs - use getAvailableCDNames()
|
||||
to find out how many there are.
|
||||
@returns a new AudioCDReader object, or nullptr if it couldn't be created. The
|
||||
caller will be responsible for deleting the object returned.
|
||||
*/
|
||||
static AudioCDReader* createReaderForCD (const int index);
|
||||
|
||||
//==============================================================================
|
||||
/** Destructor. */
|
||||
~AudioCDReader() override;
|
||||
|
||||
/** Implementation of the AudioFormatReader method. */
|
||||
bool readSamples (int** destSamples, int numDestChannels, int startOffsetInDestBuffer,
|
||||
int64 startSampleInFile, int numSamples) override;
|
||||
|
||||
/** Checks whether the CD has been removed from the drive. */
|
||||
bool isCDStillPresent() const;
|
||||
|
||||
/** Returns the total number of tracks (audio + data). */
|
||||
int getNumTracks() const;
|
||||
|
||||
/** Finds the sample offset of the start of a track.
|
||||
@param trackNum the track number, where trackNum = 0 is the first track
|
||||
and trackNum = getNumTracks() means the end of the CD.
|
||||
*/
|
||||
int getPositionOfTrackStart (int trackNum) const;
|
||||
|
||||
/** Returns true if a given track is an audio track.
|
||||
@param trackNum the track number, where 0 is the first track.
|
||||
*/
|
||||
bool isTrackAudio (int trackNum) const;
|
||||
|
||||
/** Returns an array of sample offsets for the start of each track, followed by
|
||||
the sample position of the end of the CD.
|
||||
*/
|
||||
const Array<int>& getTrackOffsets() const;
|
||||
|
||||
/** Refreshes the object's table of contents.
|
||||
|
||||
If the disc has been ejected and a different one put in since this
|
||||
object was created, this will cause it to update its idea of how many tracks
|
||||
there are, etc.
|
||||
*/
|
||||
void refreshTrackLengths();
|
||||
|
||||
/** Enables scanning for indexes within tracks.
|
||||
@see getLastIndex
|
||||
*/
|
||||
void enableIndexScanning (bool enabled);
|
||||
|
||||
/** Returns the index number found during the last read() call.
|
||||
|
||||
Index scanning is turned off by default - turn it on with enableIndexScanning().
|
||||
|
||||
Then when the read() method is called, if it comes across an index within that
|
||||
block, the index number is stored and returned by this method.
|
||||
|
||||
Some devices might not support indexes, of course.
|
||||
|
||||
(If you don't know what CD indexes are, it's unlikely you'll ever need them).
|
||||
|
||||
@see enableIndexScanning
|
||||
*/
|
||||
int getLastIndex() const;
|
||||
|
||||
/** Scans a track to find the position of any indexes within it.
|
||||
@param trackNumber the track to look in, where 0 is the first track on the disc
|
||||
@returns an array of sample positions of any index points found (not including
|
||||
the index that marks the start of the track)
|
||||
*/
|
||||
Array<int> findIndexesInTrack (const int trackNumber);
|
||||
|
||||
/** Returns the CDDB id number for the CD.
|
||||
It's not a great way of identifying a disc, but it's traditional.
|
||||
*/
|
||||
int getCDDBId();
|
||||
|
||||
/** Tries to eject the disk.
|
||||
Ejecting the disk might not actually be possible, e.g. if some other process is using it.
|
||||
*/
|
||||
void ejectDisk();
|
||||
|
||||
//==============================================================================
|
||||
enum
|
||||
{
|
||||
framesPerSecond = 75,
|
||||
samplesPerFrame = 44100 / framesPerSecond
|
||||
};
|
||||
|
||||
private:
|
||||
//==============================================================================
|
||||
Array<int> trackStartSamples;
|
||||
|
||||
#if JUCE_MAC
|
||||
File volumeDir;
|
||||
Array<File> tracks;
|
||||
int currentReaderTrack;
|
||||
std::unique_ptr<AudioFormatReader> reader;
|
||||
AudioCDReader (const File& volume);
|
||||
|
||||
#elif JUCE_WINDOWS
|
||||
bool audioTracks [100];
|
||||
void* handle;
|
||||
MemoryBlock buffer;
|
||||
bool indexingEnabled;
|
||||
int lastIndex, firstFrameInBuffer, samplesInBuffer;
|
||||
AudioCDReader (void* handle);
|
||||
int getIndexAt (int samplePos);
|
||||
|
||||
#elif JUCE_LINUX || JUCE_BSD
|
||||
AudioCDReader();
|
||||
#endif
|
||||
|
||||
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioCDReader)
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace juce
|
||||
|
||||
Reference in New Issue
Block a user