Package org.freedesktop.gstreamer.audio

Class AudioDownmixMeta

java.lang.Object

org.javagi.base.ProxyInstance

org.freedesktop.gstreamer.audio.AudioDownmixMeta

All Implemented Interfaces:

Proxy

@Generated("io.github.jwharm.JavaGI")
public class AudioDownmixMeta
extends ProxyInstance

Extra buffer metadata describing audio downmixing matrix. This metadata is attached to audio buffers and contains a matrix to downmix the buffer number of channels to channels.

matrix is an two-dimensional array of toChannels times fromChannels coefficients, i.e. the i-th output channels is constructed by multiplicating the input channels with the coefficients in matrix[i] and taking the sum of the results.

Constructor Summary

Constructors

Constructor	Description
AudioDownmixMeta()	Allocate a new AudioDownmixMeta.
AudioDownmixMeta(Arena arena)	Allocate a new AudioDownmixMeta.
AudioDownmixMeta(MemorySegment address)	Create a AudioDownmixMeta proxy instance for the provided memory address.
AudioDownmixMeta(Meta meta, MemorySegment fromPosition, MemorySegment toPosition, int fromChannels, int toChannels, MemorySegment[] matrix)	Allocate a new AudioDownmixMeta with the fields set to the provided values.
AudioDownmixMeta(Meta meta, MemorySegment fromPosition, MemorySegment toPosition, int fromChannels, int toChannels, MemorySegment[] matrix, Arena arena)	Allocate a new AudioDownmixMeta with the fields set to the provided values.

Method Summary

Modifier and Type	Method	Description
static MetaInfo	getInfo()
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
int	readFromChannels()	Read the value of the field from_channels.
MemorySegment	readFromPosition()	Read the value of the field from_position.
MemorySegment[]	readMatrix(int length)	Read the value of the field matrix.
@Nullable Meta	readMeta()	Read the value of the field meta.
int	readToChannels()	Read the value of the field to_channels.
MemorySegment	readToPosition()	Read the value of the field to_position.
void	writeFromChannels(int fromChannels)	Write a value in the field from_channels.
void	writeFromPosition(MemorySegment fromPosition)	Write a value in the field from_position.
void	writeMatrix(MemorySegment[] matrix, Arena _arena)	Write a value in the field matrix.
void	writeMeta(@Nullable Meta meta)	Write a value in the field meta.
void	writeToChannels(int toChannels)	Write a value in the field to_channels.
void	writeToPosition(MemorySegment toPosition)	Write a value in the field to_position.

Methods inherited from class org.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AudioDownmixMeta

public AudioDownmixMeta(MemorySegment address)

Create a AudioDownmixMeta proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

AudioDownmixMeta

public AudioDownmixMeta(Arena arena)

Allocate a new AudioDownmixMeta.

Parameters:

arena - to control the memory allocation scope

AudioDownmixMeta

public AudioDownmixMeta()

Allocate a new AudioDownmixMeta. The memory is allocated with Arena.ofAuto().

AudioDownmixMeta

public AudioDownmixMeta(Meta meta,
 MemorySegment fromPosition,
 MemorySegment toPosition,
 int fromChannels,
 int toChannels,
 MemorySegment[] matrix,
 Arena arena)

Allocate a new AudioDownmixMeta with the fields set to the provided values.

Parameters:

meta - value for the field meta

fromPosition - value for the field fromPosition

toPosition - value for the field toPosition

fromChannels - value for the field fromChannels

toChannels - value for the field toChannels

matrix - value for the field matrix

arena - to control the memory allocation scope

AudioDownmixMeta

public AudioDownmixMeta(Meta meta,
 MemorySegment fromPosition,
 MemorySegment toPosition,
 int fromChannels,
 int toChannels,
 MemorySegment[] matrix)

Allocate a new AudioDownmixMeta with the fields set to the provided values. The memory is allocated with Arena.ofAuto().

Parameters:

meta - value for the field meta

fromPosition - value for the field fromPosition

toPosition - value for the field toPosition

fromChannels - value for the field fromChannels

toChannels - value for the field toChannels

matrix - value for the field matrix

Method Details

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

readMeta

public @Nullable Meta readMeta()

Read the value of the field meta.

Returns:

The value of the field meta

writeMeta

public void writeMeta(@Nullable Meta meta)

Write a value in the field meta.

Parameters:

meta - The new value for the field meta

readFromPosition

public MemorySegment readFromPosition()

Read the value of the field from_position.

Returns:

The value of the field from_position

writeFromPosition

public void writeFromPosition(MemorySegment fromPosition)

Write a value in the field from_position.

Parameters:

fromPosition - The new value for the field from_position

readToPosition

public MemorySegment readToPosition()

Read the value of the field to_position.

Returns:

The value of the field to_position

writeToPosition

public void writeToPosition(MemorySegment toPosition)

Write a value in the field to_position.

Parameters:

toPosition - The new value for the field to_position

readFromChannels

public int readFromChannels()

Read the value of the field from_channels.

Returns:

The value of the field from_channels

writeFromChannels

public void writeFromChannels(int fromChannels)

Write a value in the field from_channels.

Parameters:

fromChannels - The new value for the field from_channels

readToChannels

public int readToChannels()

Read the value of the field to_channels.

Returns:

The value of the field to_channels

writeToChannels

public void writeToChannels(int toChannels)

Write a value in the field to_channels.

Parameters:

toChannels - The new value for the field to_channels

readMatrix

public MemorySegment[] readMatrix(int length)

Read the value of the field matrix.

Parameters:

length - the number of matrix to read@return The value of the field matrix

writeMatrix

public void writeMatrix(MemorySegment[] matrix,
 Arena _arena)

Write a value in the field matrix.

Parameters:

matrix - The new value for the field matrix

_arena - to control the memory allocation scope

getInfo

public static MetaInfo getInfo()