golomb.h File Reference

exp golomb vlc stuff More...

#include <stdint.h>
#include "get_bits.h"

Go to the source code of this file.

Macros
#define	INVALID_VLC   0x80000000

Functions
static int	get_ue_golomb (GetBitContext *gb)
	Read an unsigned Exp-Golomb code in the range 0 to 8190. More...
static unsigned	get_ue_golomb_long (GetBitContext *gb)
	Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1. More...
static int	get_ue_golomb_31 (GetBitContext *gb)
	read unsigned exp golomb code, constraint to a max of 31. More...
static unsigned	get_interleaved_ue_golomb (GetBitContext *gb)
static int	get_te0_golomb (GetBitContext *gb, int range)
	read unsigned truncated exp golomb code. More...
static int	get_te_golomb (GetBitContext *gb, int range)
	read unsigned truncated exp golomb code. More...
static int	get_se_golomb (GetBitContext *gb)
	read signed exp golomb code. More...
static int	get_se_golomb_long (GetBitContext *gb)
static int	get_interleaved_se_golomb (GetBitContext *gb)
static int	dirac_get_se_golomb (GetBitContext *gb)
static int	get_ur_golomb (GetBitContext *gb, int k, int limit, int esc_len)
	read unsigned golomb rice code (ffv1). More...
static int	get_ur_golomb_jpegls (GetBitContext *gb, int k, int limit, int esc_len)
	read unsigned golomb rice code (jpegls). More...
static int	get_sr_golomb (GetBitContext *gb, int k, int limit, int esc_len)
	read signed golomb rice code (ffv1). More...
static int	get_sr_golomb_flac (GetBitContext *gb, int k, int limit, int esc_len)
	read signed golomb rice code (flac). More...
static unsigned int	get_ur_golomb_shorten (GetBitContext *gb, int k)
	read unsigned golomb rice code (shorten). More...
static int	get_sr_golomb_shorten (GetBitContext *gb, int k)
	read signed golomb rice code (shorten). More...

Variables
const uint8_t	ff_golomb_vlc_len [512]
const uint8_t	ff_ue_golomb_vlc_code [512]
const int8_t	ff_se_golomb_vlc_code [512]
const uint8_t	ff_interleaved_golomb_vlc_len [256]
const uint8_t	ff_interleaved_ue_golomb_vlc_code [256]
const int8_t	ff_interleaved_se_golomb_vlc_code [256]
const uint8_t	ff_interleaved_dirac_golomb_vlc_code [256]

Detailed Description

exp golomb vlc stuff

Author

Michael Niedermayer micha.nosp@m.elni.nosp@m.@gmx..nosp@m.at and Alex Beregszaszi

Definition in file golomb.h.

Macro Definition Documentation

INVALID_VLC

#define INVALID_VLC   0x80000000

Definition at line 37 of file golomb.h.

Function Documentation

get_ue_golomb()

static int get_ue_golomb ( GetBitContext *  gb )

inlinestatic

Read an unsigned Exp-Golomb code in the range 0 to 8190.

Returns

the read value or a negative error code.

Definition at line 53 of file golomb.h.

Referenced by decode_macroblock(), decode_mb_i(), decode_pic(), decode_residual_inter(), extend_code(), ff_dovi_rpu_parse(), ff_h264_decode_mb_cavlc(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_seq_parameter_set(), ff_h264_parse_ref_count(), ff_hevc_decode_nal_pps(), get_te0_golomb(), get_te_golomb(), get_ue_code(), h264_slice_header_parse(), hevc_parse_slice_header(), main(), mobiclip_decode(), parse_nal_units(), and scan_mmco_reset().

get_ue_golomb_long()

static unsigned get_ue_golomb_long ( GetBitContext *  gb )

inlinestatic

Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.

Definition at line 104 of file golomb.h.

Referenced by decode_film_grain_characteristics(), decode_frame_packing_arrangement(), decode_hrd(), decode_hrd_parameters(), decode_lt_rps(), decode_nal_sei_active_parameter_sets(), decode_recovery_point(), decode_sublayer_hrd(), decode_vui(), ff_dovi_rpu_parse(), ff_h264_decode_mb_cavlc(), ff_h264_decode_ref_pic_list_reordering(), ff_h264_decode_ref_pic_marking(), ff_hevc_decode_nal_pps(), ff_hevc_decode_nal_vps(), ff_hevc_decode_short_term_rps(), ff_hevc_parse_sps(), get_last_needed_nal(), get_se_golomb_long(), get_ue_coef(), h264_find_frame_end(), h264_probe(), h264_slice_header_parse(), hls_slice_header(), hvcc_parse_pps(), hvcc_parse_sps(), hvcc_parse_vui(), main(), mxf_parse_h264_frame(), parse_nal_units(), parse_rps(), pps_range_extensions(), pred_weight_table(), scaling_list_data(), scan_mmco_reset(), skip_hrd_parameters(), skip_scaling_list_data(), skip_sub_layer_hrd_parameters(), skip_sub_layer_ordering_info(), and skip_timing_info().

get_ue_golomb_31()

static int get_ue_golomb_31 ( GetBitContext *  gb )

inlinestatic

read unsigned exp golomb code, constraint to a max of 31.

If the value encountered is not in 0..31, the return value is outside the range 0..30.

Definition at line 120 of file golomb.h.

Referenced by add_pframe_coefficients(), decode_buffering_period(), decode_hrd_parameters(), decode_mb_i(), decode_vui_parameters(), ff_dovi_rpu_parse(), ff_h2645_decode_common_vui_params(), ff_h264_decode_mb_cavlc(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_ref_pic_list_reordering(), ff_h264_decode_ref_pic_marking(), ff_h264_decode_seq_parameter_set(), ff_h264_pred_weight_table(), get_last_needed_nal(), h264_slice_header_parse(), hevc_parse_slice_header(), mxf_parse_h264_frame(), parse_nal_units(), process_block(), and scan_mmco_reset().

get_interleaved_ue_golomb()

static unsigned get_interleaved_ue_golomb ( GetBitContext *  gb )

inlinestatic

Definition at line 143 of file golomb.h.

Referenced by decode_component(), dirac_get_se_golomb(), dirac_unpack_block_motion_data(), dirac_unpack_idwt_params(), dirac_unpack_prediction_parameters(), rv30_decode_intra_types(), rv30_decode_mb_info(), rv40_decode_mb_info(), send_picture(), svq3_decode_block(), svq3_decode_frame(), svq3_decode_init(), svq3_decode_mb(), and svq3_decode_slice_header().

get_te0_golomb()

static int get_te0_golomb ( GetBitContext *  gb, int  range  )

inlinestatic

read unsigned truncated exp golomb code.

Definition at line 211 of file golomb.h.

get_te_golomb()

static int get_te_golomb ( GetBitContext *  gb, int  range  )

inlinestatic

read unsigned truncated exp golomb code.

Definition at line 226 of file golomb.h.

get_se_golomb()

static int get_se_golomb ( GetBitContext *  gb )

inlinestatic

read signed exp golomb code.

Definition at line 239 of file golomb.h.

Referenced by decode_mb_i(), decode_pic(), decode_residual_inter(), decode_scaling_list(), ff_cavs_mv(), ff_h264_decode_mb_cavlc(), ff_h264_decode_picture_parameter_set(), ff_h264_pred_weight_table(), ff_hevc_decode_nal_pps(), fic_decode_block(), h264_slice_header_parse(), hls_slice_header(), main(), mobiclip_decode(), parse_nal_units(), pred_weight_table(), predict_intra(), predict_motion(), and scaling_list_data().

get_se_golomb_long()

static int get_se_golomb_long ( GetBitContext *  gb )

inlinestatic

Definition at line 294 of file golomb.h.

Referenced by decode_film_grain_characteristics(), ff_h264_decode_seq_parameter_set(), get_se_coef(), hvcc_parse_pps(), pps_range_extensions(), and skip_scaling_list_data().

get_interleaved_se_golomb()

static int get_interleaved_se_golomb ( GetBitContext *  gb )

inlinestatic

Definition at line 301 of file golomb.h.

Referenced by rv34_decode_mv(), svq3_decode_mb(), and svq3_mc_dir().

dirac_get_se_golomb()

static int dirac_get_se_golomb ( GetBitContext *  gb )

inlinestatic

Definition at line 359 of file golomb.h.

Referenced by codeblock(), coeff_unpack_golomb(), dirac_decode_picture_header(), and dirac_unpack_prediction_parameters().

get_ur_golomb()

static int get_ur_golomb ( GetBitContext *  gb, int  k, int  limit, int  esc_len  )

inlinestatic

read unsigned golomb rice code (ffv1).

Definition at line 374 of file golomb.h.

Referenced by get_sr_golomb().

get_ur_golomb_jpegls()

static int get_ur_golomb_jpegls ( GetBitContext *  gb, int  k, int  limit, int  esc_len  )

inlinestatic

read unsigned golomb rice code (jpegls).

Definition at line 428 of file golomb.h.

Referenced by get_sr_golomb_dst(), get_sr_golomb_flac(), get_sr_golomb_shorten(), get_ur_golomb_shorten(), loco_get_rice(), ls_get_code_regular(), and ls_get_code_runterm().

get_sr_golomb()

static int get_sr_golomb ( GetBitContext *  gb, int  k, int  limit, int  esc_len  )

inlinestatic

read signed golomb rice code (ffv1).

Definition at line 529 of file golomb.h.

Referenced by get_vlc_symbol().

get_sr_golomb_flac()

static int get_sr_golomb_flac ( GetBitContext *  gb, int  k, int  limit, int  esc_len  )

inlinestatic

read signed golomb rice code (flac).

Definition at line 539 of file golomb.h.

Referenced by decode_residuals().

get_ur_golomb_shorten()

static unsigned int get_ur_golomb_shorten ( GetBitContext *  gb, int  k  )

inlinestatic

read unsigned golomb rice code (shorten).

Definition at line 549 of file golomb.h.

Referenced by decode_subframe_lpc(), get_uint(), read_header(), shn_probe(), and shorten_decode_frame().

get_sr_golomb_shorten()

static int get_sr_golomb_shorten ( GetBitContext *  gb, int  k  )

inlinestatic

read signed golomb rice code (shorten).

Definition at line 557 of file golomb.h.

Referenced by decode_subframe_lpc().

Variable Documentation

ff_golomb_vlc_len

const uint8_t ff_golomb_vlc_len[512]

Definition at line 31 of file golomb.c.

Referenced by get_se_golomb(), get_ue_golomb(), and get_ue_golomb_31().

ff_ue_golomb_vlc_code

const uint8_t ff_ue_golomb_vlc_code[512]

Definition at line 50 of file golomb.c.

Referenced by get_ue_golomb(), and get_ue_golomb_31().

ff_se_golomb_vlc_code

const int8_t ff_se_golomb_vlc_code[512]

Definition at line 69 of file golomb.c.

Referenced by get_se_golomb().

ff_interleaved_golomb_vlc_len

const uint8_t ff_interleaved_golomb_vlc_len[256]

Definition at line 100 of file golomb.c.

Referenced by get_interleaved_se_golomb(), and get_interleaved_ue_golomb().

ff_interleaved_ue_golomb_vlc_code

const uint8_t ff_interleaved_ue_golomb_vlc_code[256]

Definition at line 119 of file golomb.c.

Referenced by get_interleaved_ue_golomb().

ff_interleaved_se_golomb_vlc_code

const int8_t ff_interleaved_se_golomb_vlc_code[256]

Definition at line 138 of file golomb.c.

Referenced by get_interleaved_se_golomb().

ff_interleaved_dirac_golomb_vlc_code

const uint8_t ff_interleaved_dirac_golomb_vlc_code[256]

Definition at line 157 of file golomb.c.

Referenced by get_interleaved_ue_golomb().