AVClass (JavaCPP Presets for FFmpeg 4.2.1-1.5.2 API)

java.lang.Object
- org.bytedeco.javacpp.Pointer
- - org.bytedeco.ffmpeg.avutil.AVClass

All Implemented Interfaces:

AutoCloseable
```
@Properties(inherit=avutil.class)
public class AVClass
extends Pointer
```
Describe the class of an AVClass context structure. That is an arbitrary struct of which the first field is a pointer to an AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`AVClass.Child_class_next_AVClass` Return an AVClass corresponding to the next potential AVOptions-enabled child.
`static class`	`AVClass.Child_next_Pointer_Pointer` Return next AVOptions-enabled child or NULL
`static class`	`AVClass.Get_category_Pointer` Callback to return the category.
`static class`	`AVClass.Item_name_Pointer` A pointer to a function which returns the name of a context instance ctx associated with the class.
`static class`	`AVClass.Query_ranges_PointerPointer_Pointer_BytePointer_int` Callback to return the supported/allowed ranges.

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

AVClass()
Default native constructor.

AVClass(long size)
Native array allocator.

AVClass(Pointer p)
Pointer cast constructor.

Constructors
Constructor and Description
`AVClass()` Default native constructor.
`AVClass(long size)` Native array allocator.
`AVClass(Pointer p)` Pointer cast constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`category()` Category used for visualization (like color) This is only set if the category is equal for all objects using this class.
`AVClass`	`category(int setter)`
`AVClass.Child_class_next_AVClass`	`child_class_next()`
`AVClass`	`child_class_next(AVClass.Child_class_next_AVClass setter)`
`AVClass.Child_next_Pointer_Pointer`	`child_next()`
`AVClass`	`child_next(AVClass.Child_next_Pointer_Pointer setter)`
`BytePointer`	`class_name()` The name of the class; usually it is the same name as the context structure type to which the AVClass is associated.
`AVClass`	`class_name(BytePointer setter)`
`AVClass.Get_category_Pointer`	`get_category()`
`AVClass`	`get_category(AVClass.Get_category_Pointer setter)`
`AVClass.Item_name_Pointer`	`item_name()`
`AVClass`	`item_name(AVClass.Item_name_Pointer setter)`
`int`	`log_level_offset_offset()` Offset in the structure where log_level_offset is stored.
`AVClass`	`log_level_offset_offset(int setter)`
`AVOption`	`option()` a pointer to the first option specified in the class if any or NULL
`AVClass`	`option(AVOption setter)`
`int`	`parent_log_context_offset()` Offset in the structure where a pointer to the parent context for logging is stored.
`AVClass`	`parent_log_context_offset(int setter)`
`AVClass`	`position(long position)`
`AVClass.Query_ranges_PointerPointer_Pointer_BytePointer_int`	`query_ranges()`
`AVClass`	`query_ranges(AVClass.Query_ranges_PointerPointer_Pointer_BytePointer_int setter)`
`int`	`version()` LIBAVUTIL_VERSION with which this structure was created.
`AVClass`	`version(int setter)`

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, 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
  - AVClass
```
public AVClass()
```
    Default native constructor.
  - AVClass
```
public AVClass(long size)
```
    Native array allocator. Access with Pointer.position(long).
  - AVClass
```
public AVClass(Pointer p)
```
    Pointer cast constructor. Invokes Pointer.Pointer(Pointer).
- Method Detail
  - position
```
public AVClass position(long position)
```
    Overrides:
    
    position in class Pointer
  - class_name
```
@Cast(value="const char*")
public BytePointer class_name()
```
    The name of the class; usually it is the same name as the context structure type to which the AVClass is associated.
  - class_name
```
public AVClass class_name(BytePointer setter)
```
  - item_name
```
public AVClass.Item_name_Pointer item_name()
```
  - item_name
```
public AVClass item_name(AVClass.Item_name_Pointer setter)
```
  - option
```
@Const
public AVOption option()
```
    a pointer to the first option specified in the class if any or NULL
    
    See Also:
    
    av_set_default_options()
  - option
```
public AVClass option(AVOption setter)
```
  - version
```
public int version()
```
    LIBAVUTIL_VERSION with which this structure was created. This is used to allow fields to be added without requiring major version bumps everywhere.
  - version
```
public AVClass version(int setter)
```
  - log_level_offset_offset
```
public int log_level_offset_offset()
```
    Offset in the structure where log_level_offset is stored. 0 means there is no such variable
  - log_level_offset_offset
```
public AVClass log_level_offset_offset(int setter)
```
  - parent_log_context_offset
```
public int parent_log_context_offset()
```
    Offset in the structure where a pointer to the parent context for logging is stored. For example a decoder could pass its AVCodecContext to eval as such a parent context, which an av_log() implementation could then leverage to display the parent context. The offset can be NULL.
  - parent_log_context_offset
```
public AVClass parent_log_context_offset(int setter)
```
  - child_next
```
public AVClass.Child_next_Pointer_Pointer child_next()
```
  - child_next
```
public AVClass child_next(AVClass.Child_next_Pointer_Pointer setter)
```
  - child_class_next
```
public AVClass.Child_class_next_AVClass child_class_next()
```
  - child_class_next
```
public AVClass child_class_next(AVClass.Child_class_next_AVClass setter)
```
  - category
```
@Cast(value="AVClassCategory")
public int category()
```
    Category used for visualization (like color) This is only set if the category is equal for all objects using this class. available since version (51 << 16 | 56 << 8 | 100)
  - category
```
public AVClass category(int setter)
```
  - get_category
```
public AVClass.Get_category_Pointer get_category()
```
  - get_category
```
public AVClass get_category(AVClass.Get_category_Pointer setter)
```
  - query_ranges
```
public AVClass.Query_ranges_PointerPointer_Pointer_BytePointer_int query_ranges()
```
  - query_ranges
```
public AVClass query_ranges(AVClass.Query_ranges_PointerPointer_Pointer_BytePointer_int setter)
```

Class AVClass

Nested Class Summary

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

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

Constructor Summary

Method Summary

Methods inherited from class org.bytedeco.javacpp.Pointer

Methods inherited from class java.lang.Object

Constructor Detail

AVClass

AVClass

AVClass

Method Detail

position

class_name

class_name

item_name

item_name

option

option

version

version

log_level_offset_offset

log_level_offset_offset

parent_log_context_offset

parent_log_context_offset

child_next

child_next

child_class_next

child_class_next

category

category

get_category

get_category

query_ranges

query_ranges