org.bytedeco.ffmpeg.avutil

Class AVPixFmtDescriptor

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.ffmpeg.avutil.AVPixFmtDescriptor

All Implemented Interfaces:

AutoCloseable

@Properties(inherit=avutil.class)
public class 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. \note This is separate of the colorspace (RGB, YCbCr, YPbPr, JPEG-style YUV and all the YUV variants) AVPixFmtDescriptor just stores how values are stored not what these values represent.

Nested Class Summary

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

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

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(long size) Native array allocator.
AVPixFmtDescriptor(Pointer p) Pointer cast constructor.

Method Summary

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

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, hashCode, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetof, parseBytes, physicalBytes, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, toString, totalBytes, totalPhysicalBytes, 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(long size)

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

AVPixFmtDescriptor

public AVPixFmtDescriptor(Pointer p)

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

Method Detail

position

public AVPixFmtDescriptor position(long position)

Overrides:

position in class Pointer

name

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

name

public AVPixFmtDescriptor name(BytePointer setter)

nb_components

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

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

nb_components

public AVPixFmtDescriptor nb_components(byte setter)

log2_chroma_w

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

Amount to shift the luma width right to find the chroma width. For YV12 this is 1 for example. chroma_width = AV_CEIL_RSHIFT(luma_width, log2_chroma_w) The note above is needed to ensure rounding up. This value only refers to the chroma components.

log2_chroma_w

public AVPixFmtDescriptor log2_chroma_w(byte setter)

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= AV_CEIL_RSHIFT(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 AVPixFmtDescriptor log2_chroma_h(byte setter)

flags

@Cast(value="uint64_t")
public long flags()

Combination of AV_PIX_FMT_FLAG_... flags.

flags

public AVPixFmtDescriptor flags(long setter)

comp

@ByRef
public AVComponentDescriptor comp(int i)

Parameters that describe how pixels are packed. 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. If present, the Alpha channel is always the last component.

comp

public AVPixFmtDescriptor comp(int i,
                               AVComponentDescriptor setter)

comp

@MemberGetter
public AVComponentDescriptor comp()

alias

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

Alternative comma-separated names.

alias

public AVPixFmtDescriptor alias(BytePointer setter)