com.twilight.h264.decoder
Class CAVLCContext

java.lang.Object
  com.twilight.h264.decoder.CAVLCContext

public class CAVLCContext
extends Object

Field Summary

static int	calvc_inited
static int[][][]	cavlc_level_tab
static int[]	chroma_dc_coeff_token_bits
static int[]	chroma_dc_coeff_token_len
static VLC	chroma_dc_coeff_token_vlc
static int	chroma_dc_coeff_token_vlc_table_size
static int[][]	chroma_dc_total_zeros_bits
static int[][]	chroma_dc_total_zeros_len
static VLC[]	chroma_dc_total_zeros_vlc
static int	chroma_dc_total_zeros_vlc_tables_size
static int[][]	coeff_token_bits
static int[][]	coeff_token_len
static VLC[]	coeff_token_vlc
static int[]	coeff_token_vlc_tables_size
static int[]	ff_log2_tab
static int[]	golomb_to_inter_cbp_gray
static int[]	golomb_to_intra4x4_cbp_gray
static int	LEVEL_TAB_BITS
static int[][]	run_bits
static int[][]	run_len
static VLC[]	run_vlc
static int	run_vlc_tables_size
static VLC	run7_vlc
static int	run7_vlc_table_size
static int[][]	total_zeros_bits
static int[][]	total_zeros_len
static VLC[]	total_zeros_vlc
static int	total_zeros_vlc_tables_size

Constructor Summary

CAVLCContext()

Method Summary

static int	av_log2(long v)
static int	decode_residual(H264Context h, GetBitContext gb, short[] block_base, int block_offset, int n, int[] scantable_base, int scantable_offset, long[] qmul_base, int qmul_offset, int max_coeff) decodes a residual block.
void	ff_h264_decode_init_vlc()
int	ff_h264_decode_mb_cavlc(H264Context h)
static int	get_level_prefix(GetBitContext gb)
static void	init_cavlc_level_tab()
static int	pred_non_zero_count(H264Context h, int n) gets the predicted number of non-zero coefficients.

Methods inherited from class java.lang.Object

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

Field Detail

golomb_to_inter_cbp_gray

public static final int[] golomb_to_inter_cbp_gray

golomb_to_intra4x4_cbp_gray

public static final int[] golomb_to_intra4x4_cbp_gray

chroma_dc_coeff_token_len

public static final int[] chroma_dc_coeff_token_len

chroma_dc_coeff_token_bits

public static final int[] chroma_dc_coeff_token_bits

coeff_token_len

public static final int[][] coeff_token_len

coeff_token_bits

public static final int[][] coeff_token_bits

total_zeros_len

public static final int[][] total_zeros_len

total_zeros_bits

public static final int[][] total_zeros_bits

chroma_dc_total_zeros_len

public static final int[][] chroma_dc_total_zeros_len

chroma_dc_total_zeros_bits

public static final int[][] chroma_dc_total_zeros_bits

run_len

public static final int[][] run_len

run_bits

public static final int[][] run_bits

coeff_token_vlc

public static VLC[] coeff_token_vlc

coeff_token_vlc_tables_size

public static final int[] coeff_token_vlc_tables_size

chroma_dc_coeff_token_vlc

public static VLC chroma_dc_coeff_token_vlc

chroma_dc_coeff_token_vlc_table_size

public static final int chroma_dc_coeff_token_vlc_table_size

See Also:

Constant Field Values

total_zeros_vlc

public static VLC[] total_zeros_vlc

total_zeros_vlc_tables_size

public static final int total_zeros_vlc_tables_size

See Also:

Constant Field Values

chroma_dc_total_zeros_vlc

public static VLC[] chroma_dc_total_zeros_vlc

chroma_dc_total_zeros_vlc_tables_size

public static final int chroma_dc_total_zeros_vlc_tables_size

See Also:

Constant Field Values

run_vlc

public static VLC[] run_vlc

run_vlc_tables_size

public static final int run_vlc_tables_size

See Also:

Constant Field Values

run7_vlc

public static VLC run7_vlc

run7_vlc_table_size

public static final int run7_vlc_table_size

See Also:

Constant Field Values

LEVEL_TAB_BITS

public static final int LEVEL_TAB_BITS

See Also:

Constant Field Values

cavlc_level_tab

public static int[][][] cavlc_level_tab

ff_log2_tab

public static final int[] ff_log2_tab

calvc_inited

public static int calvc_inited

Constructor Detail

CAVLCContext

public CAVLCContext()

Method Detail

av_log2

public static int av_log2(long v)

pred_non_zero_count

public static int pred_non_zero_count(H264Context h,
                                      int n)

gets the predicted number of non-zero coefficients.

Parameters:

n - block index

init_cavlc_level_tab

public static void init_cavlc_level_tab()

ff_h264_decode_init_vlc

public void ff_h264_decode_init_vlc()

get_level_prefix

public static int get_level_prefix(GetBitContext gb)

decode_residual

public static int decode_residual(H264Context h,
                                  GetBitContext gb,
                                  short[] block_base,
                                  int block_offset,
                                  int n,
                                  int[] scantable_base,
                                  int scantable_offset,
                                  long[] qmul_base,
                                  int qmul_offset,
                                  int max_coeff)

decodes a residual block.

Parameters:

n - block index

scantable - scantable

max_coeff - number of coefficients in the block

Returns:

<0 if an error occurred

ff_h264_decode_mb_cavlc

public int ff_h264_decode_mb_cavlc(H264Context h)