libavcodec/huffman.h File Reference

huffman tree builder and VLC generator More...

#include "avcodec.h"
#include "get_bits.h"

Go to the source code of this file.

Data Structures
struct	Node
Defines
#define	FF_HUFFMAN_FLAG_HNODE_FIRST   0x01
#define	FF_HUFFMAN_FLAG_ZERO_COUNT   0x02
Typedefs
typedef int(*	HuffCmp )(const void *va, const void *vb)
Functions
int	ff_huff_build_tree (AVCodecContext *avctx, VLC *vlc, int nb_codes, Node *nodes, HuffCmp cmp, int flags)
	nodes size must be 2*nb_codes first nb_codes nodes.count must be set
void	ff_huff_gen_len_table (uint8_t *dst, const uint64_t *stats)

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Detailed Description

huffman tree builder and VLC generator

Definition in file huffman.h.

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Define Documentation

#define FF_HUFFMAN_FLAG_HNODE_FIRST   0x01

Definition at line 38 of file huffman.h.

Referenced by ff_huff_build_tree(), and vp6_build_huff_tree().

#define FF_HUFFMAN_FLAG_ZERO_COUNT   0x02

Definition at line 39 of file huffman.h.

Referenced by build_huff_tree(), and fraps2_decode_plane().

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Typedef Documentation

typedef int(* HuffCmp)(const void *va, const void *vb)

Definition at line 41 of file huffman.h.

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Function Documentation

int ff_huff_build_tree	(	AVCodecContext *	avctx,
		VLC *	vlc,
		int	nb_codes,
		Node *	nodes,
		HuffCmp	cmp,
		int	flags
	)

nodes size must be 2*nb_codes first nb_codes nodes.count must be set

Definition at line 133 of file huffman.c.

Referenced by fraps2_decode_plane(), and vp6_build_huff_tree().

void ff_huff_gen_len_table	(	uint8_t *	dst,
		const uint64_t *	stats
	)

Definition at line 53 of file huffman.c.

Referenced by encode_plane().