org.bytedeco.javacpp

Class avutil.AVPixFmtDescriptor

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.javacpp.avutil.AVPixFmtDescriptor

Enclosing class:

avutil

public static class avutil.AVPixFmtDescriptor
extends Pointer

Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes of an image. It also stores the subsampling factors and number of components.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
AVPixFmtDescriptor() Default native constructor.
AVPixFmtDescriptor(int size) Native array allocator.
AVPixFmtDescriptor(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
BytePointer	alias() Alternative comma-separated names.
avutil.AVComponentDescriptor	comp()
avutil.AVComponentDescriptor	comp(int i) Parameters that describe how pixels are packed.
avutil.AVPixFmtDescriptor	comp(int i, avutil.AVComponentDescriptor comp)
byte	flags()
avutil.AVPixFmtDescriptor	flags(byte flags)
byte	log2_chroma_h() Amount to shift the luma height right to find the chroma height.
avutil.AVPixFmtDescriptor	log2_chroma_h(byte log2_chroma_h)
byte	log2_chroma_w() chroma_width = -((-luma_width )>>log2_chroma_w)
avutil.AVPixFmtDescriptor	log2_chroma_w(byte log2_chroma_w)
BytePointer	name()
byte	nb_components() The number of components each pixel has, (1-4)
avutil.AVPixFmtDescriptor	nb_components(byte nb_components)
avutil.AVPixFmtDescriptor	position(int position)

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, capacity, capacity, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, hashCode, isNull, limit, limit, memchr, memcmp, memcpy, memmove, memset, offsetof, position, put, setNull, sizeof, toString, withDeallocator, zero

Methods inherited from class java.lang.Object

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

Constructor Detail

AVPixFmtDescriptor

public AVPixFmtDescriptor()

Default native constructor.

AVPixFmtDescriptor

public AVPixFmtDescriptor(int size)

Native array allocator. Access with Pointer.position(int).

AVPixFmtDescriptor

public AVPixFmtDescriptor(Pointer p)

Pointer cast constructor. Invokes Pointer.Pointer(Pointer).

Method Detail

position

public avutil.AVPixFmtDescriptor position(int position)

Overrides:

position in class Pointer

name

@MemberGetter
 @Cast(value="const char*")
public BytePointer name()

nb_components

@Cast(value="uint8_t")
public byte nb_components()

The number of components each pixel has, (1-4)

nb_components

public avutil.AVPixFmtDescriptor nb_components(byte nb_components)

log2_chroma_w

@Cast(value="uint8_t")
public byte log2_chroma_w()

chroma_width = -((-luma_width )>>log2_chroma_w)

log2_chroma_w

public avutil.AVPixFmtDescriptor log2_chroma_w(byte log2_chroma_w)

log2_chroma_h

@Cast(value="uint8_t")
public byte log2_chroma_h()

Amount to shift the luma height right to find the chroma height. For YV12 this is 1 for example. chroma_height= -((-luma_height) >> log2_chroma_h) The note above is needed to ensure rounding up. This value only refers to the chroma components.

log2_chroma_h

public avutil.AVPixFmtDescriptor log2_chroma_h(byte log2_chroma_h)

flags

@Cast(value="uint8_t")
public byte flags()

flags

public avutil.AVPixFmtDescriptor flags(byte flags)

comp

@ByRef
public avutil.AVComponentDescriptor comp(int i)

Parameters that describe how pixels are packed. If the format has 2 or 4 components, then alpha is last. If the format has 1 or 2 components, then luma is 0. If the format has 3 or 4 components: if the RGB flag is set then 0 is red, 1 is green and 2 is blue; otherwise 0 is luma, 1 is chroma-U and 2 is chroma-V.

comp

public avutil.AVPixFmtDescriptor comp(int i,
                                      avutil.AVComponentDescriptor comp)

comp

@MemberGetter
public avutil.AVComponentDescriptor comp()

alias

@MemberGetter
 @Cast(value="const char*")
public BytePointer alias()

Alternative comma-separated names.