FFmpeg
Data Structures | Macros | Functions
get_bits.h File Reference
#include <stdint.h>
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/avassert.h"
#include "defs.h"
#include "mathops.h"
#include "vlc.h"

Go to the source code of this file.

Data Structures

struct  GetBitContext
 

Macros

#define UNCHECKED_BITSTREAM_READER   !CONFIG_SAFE_BITSTREAM_READER
 
#define CACHED_BITSTREAM_READER   0
 
#define MIN_CACHE_BITS   25
 
#define OPEN_READER_NOSIZE(name, gb)
 
#define OPEN_READER(name, gb)   OPEN_READER_NOSIZE(name, gb)
 
#define BITS_AVAILABLE(name, gb)   1
 
#define CLOSE_READER(name, gb)   (gb)->index = name ## _index
 
#define UPDATE_CACHE_LE(name, gb)
 
#define UPDATE_CACHE_BE(name, gb)
 
#define UPDATE_CACHE(name, gb)   UPDATE_CACHE_BE(name, gb)
 
#define SKIP_CACHE(name, gb, num)   name ## _cache <<= (num)
 
#define SKIP_COUNTER(name, gb, num)   name ## _index += (num)
 
#define BITS_LEFT(name, gb)   ((int)((gb)->size_in_bits - name ## _index))
 
#define SKIP_BITS(name, gb, num)
 
#define LAST_SKIP_BITS(name, gb, num)   SKIP_COUNTER(name, gb, num)
 
#define SHOW_UBITS_LE(name, gb, num)   zero_extend(name ## _cache, num)
 
#define SHOW_SBITS_LE(name, gb, num)   sign_extend(name ## _cache, num)
 
#define SHOW_UBITS_BE(name, gb, num)   NEG_USR32(name ## _cache, num)
 
#define SHOW_SBITS_BE(name, gb, num)   NEG_SSR32(name ## _cache, num)
 
#define SHOW_UBITS(name, gb, num)   SHOW_UBITS_BE(name, gb, num)
 
#define SHOW_SBITS(name, gb, num)   SHOW_SBITS_BE(name, gb, num)
 
#define GET_CACHE(name, gb)   ((uint32_t) name ## _cache)
 
#define GET_VLC(code, name, gb, table, bits, max_depth)
 If the vlc code is invalid and max_depth=1, then no bits will be removed. More...
 
#define GET_RL_VLC(level, run, name, gb, table, bits, max_depth, need_update)
 

Functions

static unsigned int get_bits (GetBitContext *s, int n)
 Read 1-25 bits. More...
 
static void skip_bits (GetBitContext *s, int n)
 
static unsigned int show_bits (GetBitContext *s, int n)
 Show 1-25 bits. More...
 
static int get_bits_count (const GetBitContext *s)
 
static void skip_bits_long (GetBitContext *s, int n)
 Skips the specified number of bits. More...
 
static int get_xbits (GetBitContext *s, int n)
 Read MPEG-1 dc-style VLC (sign bit + mantissa with no MSB). More...
 
static int get_xbits_le (GetBitContext *s, int n)
 
static int get_sbits (GetBitContext *s, int n)
 
static av_always_inline int get_bitsz (GetBitContext *s, int n)
 Read 0-25 bits. More...
 
static unsigned int get_bits_le (GetBitContext *s, int n)
 
static unsigned int get_bits1 (GetBitContext *s)
 
static unsigned int show_bits1 (GetBitContext *s)
 
static void skip_bits1 (GetBitContext *s)
 
static unsigned int get_bits_long (GetBitContext *s, int n)
 Read 0-32 bits. More...
 
static uint64_t get_bits64 (GetBitContext *s, int n)
 Read 0-64 bits. More...
 
static int get_sbits_long (GetBitContext *s, int n)
 Read 0-32 bits as a signed integer. More...
 
static unsigned int show_bits_long (GetBitContext *s, int n)
 Show 0-32 bits. More...
 
static int init_get_bits_xe (GetBitContext *s, const uint8_t *buffer, int bit_size, int is_le)
 
static int init_get_bits (GetBitContext *s, const uint8_t *buffer, int bit_size)
 Initialize GetBitContext. More...
 
static int init_get_bits8 (GetBitContext *s, const uint8_t *buffer, int byte_size)
 Initialize GetBitContext. More...
 
static int init_get_bits8_le (GetBitContext *s, const uint8_t *buffer, int byte_size)
 
static const uint8_t * align_get_bits (GetBitContext *s)
 
static int set_idx (GetBitContext *s, int code, int *n, int *nb_bits, const VLCElem *table)
 
static av_always_inline int get_vlc2 (GetBitContext *s, const VLCElem *table, int bits, int max_depth)
 Parse a vlc code. More...
 
static int decode012 (GetBitContext *gb)
 
static int decode210 (GetBitContext *gb)
 
static int get_bits_left (GetBitContext *gb)
 
static int skip_1stop_8data_bits (GetBitContext *gb)
 

Detailed Description

bitstream reader API header.

Definition in file get_bits.h.

Macro Definition Documentation

◆ UNCHECKED_BITSTREAM_READER

#define UNCHECKED_BITSTREAM_READER   !CONFIG_SAFE_BITSTREAM_READER

Definition at line 54 of file get_bits.h.

◆ CACHED_BITSTREAM_READER

#define CACHED_BITSTREAM_READER   0

Definition at line 58 of file get_bits.h.

◆ MIN_CACHE_BITS

#define MIN_CACHE_BITS   25

Definition at line 128 of file get_bits.h.

◆ OPEN_READER_NOSIZE

#define OPEN_READER_NOSIZE (   name,
  gb 
)
Value:
unsigned int name ## _index = (gb)->index; \
unsigned int av_unused name ## _cache

Definition at line 133 of file get_bits.h.

◆ OPEN_READER

#define OPEN_READER (   name,
  gb 
)    OPEN_READER_NOSIZE(name, gb)

Definition at line 138 of file get_bits.h.

◆ BITS_AVAILABLE

#define BITS_AVAILABLE (   name,
  gb 
)    1

Definition at line 140 of file get_bits.h.

◆ CLOSE_READER

#define CLOSE_READER (   name,
  gb 
)    (gb)->index = name ## _index

Definition at line 149 of file get_bits.h.

◆ UPDATE_CACHE_LE

#define UPDATE_CACHE_LE (   name,
  gb 
)
Value:
name ## _cache = \
AV_RL32((gb)->buffer + (name ## _index >> 3)) >> (name ## _index & 7)

Definition at line 161 of file get_bits.h.

◆ UPDATE_CACHE_BE

#define UPDATE_CACHE_BE (   name,
  gb 
)
Value:
name ## _cache = \
AV_RB32((gb)->buffer + (name ## _index >> 3)) << (name ## _index & 7)

Definition at line 164 of file get_bits.h.

◆ UPDATE_CACHE

#define UPDATE_CACHE (   name,
  gb 
)    UPDATE_CACHE_BE(name, gb)

Definition at line 178 of file get_bits.h.

◆ SKIP_CACHE

#define SKIP_CACHE (   name,
  gb,
  num 
)    name ## _cache <<= (num)

Definition at line 180 of file get_bits.h.

◆ SKIP_COUNTER

#define SKIP_COUNTER (   name,
  gb,
  num 
)    name ## _index += (num)

Definition at line 185 of file get_bits.h.

◆ BITS_LEFT

#define BITS_LEFT (   name,
  gb 
)    ((int)((gb)->size_in_bits - name ## _index))

Definition at line 191 of file get_bits.h.

◆ SKIP_BITS

#define SKIP_BITS (   name,
  gb,
  num 
)
Value:
do { \
SKIP_CACHE(name, gb, num); \
SKIP_COUNTER(name, gb, num); \
} while (0)

Definition at line 193 of file get_bits.h.

◆ LAST_SKIP_BITS

#define LAST_SKIP_BITS (   name,
  gb,
  num 
)    SKIP_COUNTER(name, gb, num)

Definition at line 199 of file get_bits.h.

◆ SHOW_UBITS_LE

#define SHOW_UBITS_LE (   name,
  gb,
  num 
)    zero_extend(name ## _cache, num)

Definition at line 201 of file get_bits.h.

◆ SHOW_SBITS_LE

#define SHOW_SBITS_LE (   name,
  gb,
  num 
)    sign_extend(name ## _cache, num)

Definition at line 202 of file get_bits.h.

◆ SHOW_UBITS_BE

#define SHOW_UBITS_BE (   name,
  gb,
  num 
)    NEG_USR32(name ## _cache, num)

Definition at line 204 of file get_bits.h.

◆ SHOW_SBITS_BE

#define SHOW_SBITS_BE (   name,
  gb,
  num 
)    NEG_SSR32(name ## _cache, num)

Definition at line 205 of file get_bits.h.

◆ SHOW_UBITS

#define SHOW_UBITS (   name,
  gb,
  num 
)    SHOW_UBITS_BE(name, gb, num)

Definition at line 211 of file get_bits.h.

◆ SHOW_SBITS

#define SHOW_SBITS (   name,
  gb,
  num 
)    SHOW_SBITS_BE(name, gb, num)

Definition at line 212 of file get_bits.h.

◆ GET_CACHE

#define GET_CACHE (   name,
  gb 
)    ((uint32_t) name ## _cache)

Definition at line 215 of file get_bits.h.

◆ GET_VLC

#define GET_VLC (   code,
  name,
  gb,
  table,
  bits,
  max_depth 
)
Value:
do { \
int n, nb_bits; \
unsigned int index; \
\
index = SHOW_UBITS(name, gb, bits); \
code = table[index].sym; \
n = table[index].len; \
\
if (max_depth > 1 && n < 0) { \
LAST_SKIP_BITS(name, gb, bits); \
UPDATE_CACHE(name, gb); \
\
nb_bits = -n; \
\
index = SHOW_UBITS(name, gb, nb_bits) + code; \
code = table[index].sym; \
n = table[index].len; \
if (max_depth > 2 && n < 0) { \
LAST_SKIP_BITS(name, gb, nb_bits); \
UPDATE_CACHE(name, gb); \
\
nb_bits = -n; \
\
index = SHOW_UBITS(name, gb, nb_bits) + code; \
code = table[index].sym; \
n = table[index].len; \
} \
} \
SKIP_BITS(name, gb, n); \
} while (0)

If the vlc code is invalid and max_depth=1, then no bits will be removed.

If the vlc code is invalid and max_depth>1, then the number of bits removed is undefined.

Definition at line 696 of file get_bits.h.

◆ GET_RL_VLC

#define GET_RL_VLC (   level,
  run,
  name,
  gb,
  table,
  bits,
  max_depth,
  need_update 
)

Definition at line 728 of file get_bits.h.

Function Documentation

◆ get_bits()

static unsigned int get_bits ( GetBitContext *  s,
int  n 
)
inlinestatic

Read 1-25 bits.

Definition at line 379 of file get_bits.h.

Referenced by aac_adtstoasc_filter(), aac_decode_frame_int(), ac3_decode_transform_coeffs_ch(), ac3_parse_header(), ac_get(), ac_init(), add_coefficients(), adpcm_swf_decode(), adts_decode_extradata(), aic_decode_coeffs(), alac_decode_frame(), apcm_dequant_add(), ape_decode_value_3860(), apply_color_indexing_transform(), arith_init(), asv1_decode_block(), at1_parse_bsm(), at1_unpack_dequant(), atrac3p_decode_frame(), atrac9_decode_block(), atrac9_decode_init(), aw_parse_coords(), aw_pulse_set1(), aw_pulse_set2(), bink_decode_plane(), binkb_decode_plane(), binkb_read_bundle(), bit_copy(), bitpacked_decode_yuv422p10(), cbs_av1_get_payload_bytes_left(), cbs_av1_read_ns(), cbs_vp9_read_le(), cbs_vp9_read_s(), check_for_slice(), chs_parse_band_data(), chs_parse_header(), copy_bits(), coupling_coordinates(), coupling_strategy(), cri_decode_frame(), dca_parse_params(), decode(), decode2x2(), decode4x4(), decode8x8(), decode_ac_filter(), decode_alternative_transfer(), decode_argb(), decode_argbi(), decode_argx(), decode_argxi(), decode_audio_block(), decode_aybr(), decode_aybri(), decode_band_hdr(), decode_band_numwavs(), decode_band_types(), decode_block(), decode_blocks(), decode_byry(), decode_byryi(), decode_c82i(), decode_c82p(), decode_ca2i(), decode_ca2p(), decode_ca4i(), decode_ca4p(), decode_cce(), decode_cdlms(), decode_channel(), decode_channel_code_tab(), decode_channel_map(), decode_channel_residues(), decode_channel_sf_idx(), decode_channel_sound_unit(), decode_channel_wordlen(), decode_chunks(), decode_coeff(), decode_coeffs(), decode_cpe(), decode_decorrelation_matrix(), decode_display_orientation(), decode_dynamic_range(), decode_eld_specific_config(), decode_element(), decode_entropy_coded_image(), decode_envelope(), decode_exp_lsp(), decode_exp_vlc(), decode_exponents(), decode_ext_header(), decode_extension_payload(), decode_fill(), decode_film_grain_characteristics(), decode_frame(), decode_frame_header(), decode_frame_packing_arrangement(), decode_ga_specific_config(), decode_gain_control(), decode_gain_info(), decode_gainc_data(), decode_gainc_levels(), decode_gainc_loc_codes(), decode_gainc_npoints(), decode_gop_header(), decode_green_metadata(), decode_group3_2d_line(), decode_hq_slice(), decode_hrd_parameters(), decode_huff(), decode_huffman2(), decode_ics(), decode_ics_info(), decode_index_tilemap(), decode_inter(), decode_intra(), decode_line_TMPL(), decode_lowdelay_slice(), decode_lpc(), decode_lt_rps(), decode_ltp(), decode_macroblock(), decode_mb(), decode_mb_b(), decode_mb_i(), decode_mb_info(), decode_mclms(), decode_motion(), decode_nal_sei_active_parameter_sets(), decode_nal_sei_display_orientation(), decode_nal_sei_frame_packing_arrangement(), decode_nal_sei_pic_timing(), decode_nal_sei_timecode(), decode_new_pred(), decode_packet(), decode_palmapdata(), decode_parameters(), decode_pce(), decode_pic(), decode_pic_hdr(), decode_plane_bitstream(), decode_plane_subdivision(), decode_prediction(), decode_profile_tier_level(), decode_pulses(), decode_registered_user_data(), decode_registered_user_data_afd(), decode_residual(), decode_residuals(), decode_residues(), decode_rgb(), decode_rgbi(), decode_rgbx(), decode_rgbxi(), decode_rle(), decode_run_2bit(), decode_run_8bit(), decode_scale_factors(), decode_scalefactors(), decode_segment(), decode_seq_header(), decode_sequence_header_adv(), decode_skip_count(), decode_slice(), decode_slice_header(), decode_spectrum(), decode_studio_vol_header(), decode_studio_vop_header(), decode_studiovisualobject(), decode_subframe(), decode_subframe_length(), decode_subframe_lpc(), decode_sym(), decode_sym_565(), decode_tiledata(), decode_tns(), decode_tonal_components(), decode_tones_amplitude(), decode_tones_envelope(), decode_tones_frequency(), decode_tones_phase(), decode_unregistered_user_data(), decode_user_data(), decode_vbmtree(), decode_vol_header(), decode_vop_header(), decode_vui(), decode_vui_parameters(), decode_ybr(), decode_ybr10(), decode_ybr10i(), decode_ybri(), decode_ybyr(), decode_yry10(), decode_yry10i(), decode_yuv_frame(), decorrelate(), decouple_info(), dequant_lsp10i(), dequant_lsp10r(), dequant_lsp16i(), dequant_lsp16r(), dnxhd_decode_macroblock(), do_output_subblock(), dss_sp_unpack_coeffs(), dts_probe(), dv_decode_video_segment(), dvbsub_read_2bit_string(), dvbsub_read_4bit_string(), encode_picture_ls(), escape124_decode_frame(), escape130_decode_frame(), extend_code(), extension_and_user_data(), ff_adts_header_parse(), ff_atrac3p_decode_channel_unit(), ff_av1_parse_seq_header(), ff_avc_decode_sps(), ff_bgmc_decode_init(), ff_dca_exss_parse(), ff_dca_parse_core_frame_header(), ff_dolby_e_parse_header(), ff_dovi_rpu_parse(), ff_eac3_decode_transform_coeffs_aht_ch(), ff_eac3_parse_header(), ff_flac_decode_frame_header(), ff_flac_parse_streaminfo(), ff_flv_decode_picture_header(), ff_h263_decode_mba(), ff_h263_decode_motion(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_decode_mb_cavlc(), ff_h264_decode_picture_parameter_set(), ff_h264_decode_seq_parameter_set(), ff_h264_sei_decode(), ff_h264_sei_process_picture_timing(), ff_hevc_decode_nal_pps(), ff_hevc_decode_nal_vps(), ff_hevc_parse_sps(), ff_hls_senc_parse_audio_setup_info(), ff_intel_h263_decode_picture_header(), ff_ivi_dec_huff_desc(), ff_ivi_decode_frame(), ff_jpegls_decode_lse(), ff_mjpeg_decode_dht(), ff_mjpeg_decode_dqt(), ff_mjpeg_decode_sof(), ff_mjpeg_decode_sos(), ff_mlp_read_major_sync(), ff_mpeg4_decode_partitions(), ff_mpeg4_decode_picture_header(), ff_mpeg4_decode_studio_slice_header(), ff_mpeg4_decode_video_packet_header(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_ext_header(), ff_msmpeg4_decode_motion(), ff_msmpeg4_decode_picture_header(), ff_opus_rc_dec_init(), ff_parse_a53_cc(), ff_parse_itu_t_t35_to_dynamic_hdr10_plus(), ff_parse_itu_t_t35_to_dynamic_hdr_vivid(), ff_pce_copy_bits(), ff_rtp_send_h263_rfc2190(), ff_tak_decode_frame_header(), ff_tak_parse_streaminfo(), ff_vc1_decode_entry_point(), ff_vc1_decode_sequence_header(), ff_vc1_parse_frame_header(), ff_vc1_parse_frame_header_adv(), ff_wma_run_level_decode(), ff_wmv2_decode_picture_header(), fic_decode_block(), fill_block(), fill_slice(), flac_header(), flashsv_decode_frame(), frame_header_is_valid(), frame_header_obu(), g722_decode_frame(), gainc_loc_mode0(), gainc_loc_mode1(), gb_get_v(), generate_fake_vps(), get_array(), get_bits_esc4(), get_bits_long(), get_bitsz(), get_block(), get_coeff(), get_coeff_bits(), get_dimension(), get_eob_run(), get_float(), get_mvdata_interlaced(), get_num_ct_values(), get_object_type(), get_prediction(), get_rice_ook(), get_sample_rate(), get_sbits(), get_sbits_inv(), get_scale_idx(), get_ue_code(), get_utf8(), get_value_cached(), gsm_decode_block(), gsm_decode_frame(), h261_decode_block(), h261_decode_gob_header(), h261_decode_mb(), h261_decode_picture_header(), h261_handle_packet(), h263_decode_block(), h263_decode_dquant(), h263_decode_gob_header(), h263_get_modb(), h263_handle_packet(), h264_parse_nal_header(), h264_probe(), h264_slice_header_parse(), handle_eac3(), handle_rstn(), hevc_parse_nal_header(), hevc_parse_slice_header(), hl_decode_mb(), hl_decode_mb_444(), hls_slice_header(), horizontal_fill(), hq_decode_block(), hq_decode_mb(), hqx_decode_422(), hqx_decode_422a(), hqx_decode_444(), hqx_decode_444a(), huf_decode(), huf_unpack_enc_table(), hvcc_parse_ptl(), hvcc_parse_sps(), hvcc_parse_vps(), hvcc_parse_vui(), idx_to_quant(), imc_decode_block(), imc_get_coeffs(), imc_read_level_coeffs(), imc_read_level_coeffs_raw(), ipu_decode_frame(), ipvideo_decode_format_11_opcodes(), ivi_dec_tile_data_size(), k23(), k24(), k34(), k35(), k44(), k45(), kempf_restore_buf(), latm_decode_audio_specific_config(), latm_decode_frame(), latm_get_value(), leb128(), linear(), load_matrix(), ls_decode_line(), lsp_unquant_high(), lsp_unquant_lbr(), lsp_unquant_nb(), magy_decode_slice10(), message(), metasound_read_bitstream(), mjpeg_decode_app(), mjpeg_decode_com(), mjpeg_decode_dri(), mobiclip_decode(), mono_decode(), mov_read_ddts(), mov_write_dvc1_structs(), mp_decode_frame(), mp_decode_layer1(), mp_decode_layer2(), mp_decode_layer3(), mp_read_changes_map(), mp_read_codes_table(), mpc7_decode_frame(), mpc7_decode_init(), mpc8_decode_frame(), mpc8_decode_init(), mpc8_parse_seektable(), mpeg1_decode_picture(), mpeg1_decode_sequence(), mpeg4_decode_dc(), mpeg4_decode_dpcm_macroblock(), mpeg4_decode_gop_header(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_profile_level(), mpeg4_decode_studio_block(), mpeg4_decode_visual_object(), mpeg4_is_resync(), mpeg_decode_a53_cc(), mpeg_decode_gop(), mpeg_decode_mb(), mpeg_decode_motion(), mpeg_decode_picture_coding_extension(), mpeg_decode_sequence_display_extension(), mpeg_decode_sequence_extension(), mpeg_get_qscale(), msmpeg4_decode_dc(), msmpeg4v2_decode_motion(), mss2_decode_frame(), mss4_decode_image_block(), nal_unit_parse_header(), nb_decode(), nelly_decode_block(), next_start_code_studio(), num_coded_units(), on2avc_decode_band_scales(), on2avc_decode_band_types(), on2avc_decode_subframe(), opus_rc_dec_normalize(), parse(), parse_aux_data(), parse_avs2_seq_header(), parse_avs3_nal_units(), parse_band_ext(), parse_bintree(), parse_bit_alloc(), parse_block_codes(), parse_ch(), parse_channel(), parse_coding_header(), parse_color_config(), parse_common_header(), parse_config_ALS(), parse_descriptor(), parse_dmix_coeffs(), parse_fmtp_config(), parse_gradient(), parse_grid_1_chunk(), parse_high_res_grid(), parse_indices(), parse_joint_scale(), parse_lbr_parameters(), parse_lfe_16(), parse_lfe_24(), parse_lpc(), parse_mb_skip(), parse_nal_units(), parse_obu_header(), parse_packet_header(), parse_ptl(), parse_scale(), parse_sequence_header(), parse_setup_header(), parse_subframe_audio(), parse_subframe_header(), parse_tonal(), parse_tonal_chunk(), parse_transform_color_indexing(), parse_ts(), parse_vlc(), parse_x96_coding_header(), parse_x96_frame(), parse_x96_frame_exss(), parse_x96_subframe_audio(), parse_x96_subframe_header(), parse_xbr_frame(), parse_xbr_subframe(), parse_xll_parameters(), parse_xxch_frame(), pcx_decode_frame(), process_subpacket_11(), put_pcm(), qcelp_decode_frame(), qdm2_decode_fft_packets(), qdm2_decode_sub_packet_header(), qdm2_decode_super_block(), qdm2_fft_decode_tones(), qdm2_get_vlc(), qdmc_get_vlc(), qt_rtp_parse_packet(), ra144_decode_frame(), ra288_decode_frame(), read_access_unit(), read_audio_mux_element(), read_block_data(), read_block_types(), read_cb_data(), read_channel_data(), read_channel_params(), read_code(), read_code_table(), read_coeffs_coarse(), read_coeffs_fine(), read_colorspace_details(), read_dcs(), read_dct_coeffs(), read_decoding_params(), read_diff_float_data(), read_filter_params(), read_header(), read_high_coeffs(), read_huffman_code_normal(), read_huffman_code_simple(), read_huffman_tree(), read_len_table(), read_low_coeffs(), read_map(), read_matrix_params(), read_motion_values(), read_payload_length_info(), read_quant_matrix_ext(), read_quant_spectral_coeffs(), read_residue(), read_restart_header(), read_runs(), read_sbr_data(), read_sbr_envelope(), read_sbr_grid(), read_sbr_header(), read_sbr_invf(), read_sbr_noise(), read_scalefactors(), read_sl_header(), read_specific_config(), read_stream_mux_config(), read_table(), read_tree(), read_uncoded_coeff(), read_var_block_data(), read_vec_pos(), read_wave_data(), rv10_decode_picture_header(), rv20_decode_picture_header(), rv30_parse_slice_header(), rv34_decode_inter_mb_header(), rv34_decode_intra_mb_header(), rv40_parse_slice_header(), save_bits(), sb_decode(), seq_decode_op1(), seqvideo_decode(), siren_decode(), skip_data_stream_element(), skip_hdr_extension(), skip_label(), smacker_decode_header_tree(), smacker_decode_tree(), smka_decode_frame(), speex_default_user_handler(), speex_inband_handler(), speex_std_stereo(), spx_coordinates(), spx_strategy(), svq1_decode_frame(), svq1_decode_frame_header(), svq1_parse_string(), svq3_decode_init(), svq3_decode_slice_header(), swf_probe(), synth_block_fcb_acb(), synth_block_hardcoded(), synth_frame(), synth_superframe(), synthfilt_build_sb_samples(), t15(), t27(), t37(), tak_decode_frame(), tak_read_header(), tgq_decode_block(), tgv_decode_inter(), theora_header(), tm2_build_huff_table(), tm2_read_deltas(), truehd_core_filter(), truemotion2rt_decode_frame(), truespeech_read_frame(), tscc2_decode_mb(), tta_decode_frame(), tta_decode_init(), twinvq_read_bitstream(), unbias_exponents(), unpack(), unpack_alpha(), unpack_bitstream(), unpack_block_qpis(), unpack_codebook(), unpack_dct_coeffs(), unpack_frame(), unpack_gray(), unpack_modes(), unpack_superblocks(), unpack_vectors(), vaapi_mpeg2_decode_slice(), vble_restore_plane(), vc1_decode_ac_coeff(), vc1_decode_frame(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_intra_block(), vlc_decode_block(), vop_dquant_decoding(), vorbis_decode_init(), vorbis_floor0_decode(), vorbis_floor1_decode(), vorbis_parse_audio_packet(), vorbis_parse_id_hdr(), vorbis_parse_setup_hdr(), vorbis_parse_setup_hdr_codebooks(), vorbis_parse_setup_hdr_floors(), vorbis_parse_setup_hdr_mappings(), vorbis_parse_setup_hdr_modes(), vorbis_parse_setup_hdr_residues(), vorbis_parse_setup_hdr_tdtransforms(), vp3_decode_frame(), vp6_get_nb_null(), vp6_parse_coeff_huffman(), vp8_lossless_decode_frame(), vp9_raw_reorder_frame_parse(), vp9_superframe_filter(), vp9_superframe_split_filter(), wma_decode_block(), wma_decode_superframe(), wnv1_get_code(), wv_get_value_float(), x8_get_ac_rlf(), x8_get_dc_rlf(), x8_get_orient_vlc(), and x8_select_ac_table().

◆ skip_bits()

static void skip_bits ( GetBitContext *  s,
int  n 
)
inlinestatic

Definition at line 467 of file get_bits.h.

Referenced by aac_decode_er_frame(), ac3_parse_header(), aic_decode_coeffs(), al_decode_frame(), align_get_bits(), apply_color_indexing_transform(), at1_parse_bsm(), bitline2chunky(), bitplanar2chunky(), cabac_init_decoder(), dca_parse_params(), decode_argb_frame(), decode_audio_block(), decode_band_hdr(), decode_block(), decode_buffering_period(), decode_dynamic_range(), decode_element(), decode_frame(), decode_frame_header(), decode_frame_packing_arrangement(), decode_ga_specific_config(), decode_gain_control(), decode_gop_header(), decode_group3_1d_line(), decode_hrd(), decode_huff(), decode_inter(), decode_nal_sei_frame_packing_arrangement(), decode_packet(), decode_pce(), decode_pic(), decode_pic_hdr(), decode_profile_tier_level(), decode_recovery_point(), decode_registered_user_data(), decode_registered_user_data_afd(), decode_residual(), decode_rgb24_frame(), decode_scalar(), decode_seq_header(), decode_sequence_header_adv(), decode_slice(), decode_smpte_tc(), decode_studio_vol_header(), decode_studio_vop_header(), decode_studiovisualobject(), decode_uncompressed(), decode_vol_header(), decode_vop_header(), decode_yuv_frame(), extension_data(), extra_information(), ff_adts_header_parse(), ff_av1_parse_seq_header(), ff_avc_decode_sps(), ff_dca_exss_parse(), ff_dca_parse_core_frame_header(), ff_decode_sbr_extension(), ff_dolby_e_parse_header(), ff_dovi_rpu_parse(), ff_eac3_parse_header(), ff_flac_decode_frame_header(), ff_flac_parse_streaminfo(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_decode_seq_parameter_set(), ff_h264_sei_process_picture_timing(), ff_hevc_decode_nal_pps(), ff_hevc_decode_nal_vps(), ff_hevc_parse_sps(), ff_hls_senc_parse_audio_setup_info(), ff_intel_h263_decode_picture_header(), ff_jpegls_decode_picture(), ff_mjpeg_decode_sos(), ff_mjpeg_receive_frame(), ff_mlp_read_major_sync(), ff_mpeg4_decode_partitions(), ff_mpeg4_decode_picture_header(), ff_mpeg4_decode_studio_slice_header(), ff_mpeg4_decode_video_packet_header(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_ext_header(), ff_msmpeg4_decode_picture_header(), ff_parse_a53_cc(), ff_rtp_send_h263_rfc2190(), ff_tak_decode_frame_header(), ff_tak_parse_streaminfo(), ff_vc1_decode_entry_point(), ff_vc1_decode_sequence_header(), ff_vc1_parse_frame_header(), ff_vc1_parse_frame_header_adv(), flac_header(), flashsv_decode_frame(), g722_decode_frame(), get_bits_align32(), get_interleaved_se_golomb(), h261_decode_block(), h261_decode_gob_header(), h261_handle_packet(), h261_resync(), h263_decode_gob_header(), h263_handle_packet(), h264_probe(), handle_eac3(), handle_rstn(), hevc_parse_slice_header(), hls_slice_header(), hqx_get_ac(), hvcc_parse_pps(), hvcc_parse_ptl(), hvcc_parse_sps(), hvcc_parse_vps(), hvcc_parse_vui(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), metasound_read_bitstream(), mjpeg_decode_app(), mjpegb_decode_frame(), mov_read_ddts(), mov_write_dvc1_structs(), mp_decode_layer3(), mpc8_decode_frame(), mpc8_decode_init(), mpeg1_decode_sequence(), mpeg4_decode_visual_object(), mpeg4_is_resync(), mpeg_decode_a53_cc(), mpeg_decode_picture_display_extension(), mpeg_decode_sequence_display_extension(), mpeg_decode_sequence_extension(), mpeg_decode_slice(), mss2_decode_frame(), mxpeg_decode_app(), mxpeg_decode_com(), nal_unit_parse_header(), parse_adts_frame_header(), parse_aux_data(), parse_avs2_seq_header(), parse_avs3_nal_units(), parse_band_ext(), parse_coding_header(), parse_descriptor(), parse_fmtp_config(), parse_lbr_parameters(), parse_navi_table(), parse_obu_header(), parse_packet_header(), parse_ptl(), parse_sequence_header(), parse_setup_header(), parse_subframe_header(), parse_x96_coding_header(), parse_x96_subframe_header(), parse_xll_parameters(), preview_obmc(), qdm2_decode_super_block(), qt_rtp_parse_packet(), read_access_unit(), read_block_data(), read_code(), read_const_block_data(), read_header(), read_high_coeffs(), read_low_coeffs(), read_payload_length_info(), read_restart_header(), read_sbr_channel_pair_element(), read_sbr_data(), read_sbr_header(), read_sbr_single_channel_element(), read_sl_header(), read_specific_config(), read_stream_mux_config(), relative_align_get_bits(), rv10_decode_picture_header(), rv20_decode_picture_header(), save_bits(), shorten_decode_frame(), siren_decode(), skip_1stop_8data_bits(), skip_bits1(), skip_bits_long(), skip_hdr_extension(), skip_hrd_parameters(), svq1_decode_frame(), svq1_decode_frame_header(), svq3_decode_slice_header(), synth_block_fcb_acb(), synth_superframe(), tak_decode_frame(), tgq_decode_block(), theora_header(), truemotion2rt_decode_frame(), twinvq_read_bitstream(), vaapi_mpeg2_decode_slice(), vble_unpack(), vorbis_parse_setup_hdr_mappings(), vp3_decode_frame(), vp9_raw_reorder_frame_parse(), wma_decode_superframe(), and wmavoice_decode_packet().

◆ show_bits()

static unsigned int show_bits ( GetBitContext *  s,
int  n 
)
inlinestatic

Show 1-25 bits.

Definition at line 446 of file get_bits.h.

Referenced by aac_decode_frame_int(), al_decode_frame(), cbs_h2645_read_more_rbsp_data(), cbs_h265_payload_extension_present(), check_for_slice(), check_slice_end(), decode_frame(), decode_group3_1d_line(), decode_huff(), decode_packet(), decode_pic(), decode_residual(), decode_scalar(), decode_slice(), decode_uncompressed(), decode_user_data(), decode_vop_header(), decode_vui(), ff_ccitt_unpack(), ff_h263_decode_mb(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_sei_decode(), ff_ivi_decode_frame(), ff_mjpeg_decode_sos(), ff_mpeg4_decode_partitions(), ff_mpeg4_decode_picture_header(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_block(), ff_wmv2_decode_mb(), ff_wmv2_decode_picture_header(), filler(), get_interleaved_se_golomb(), get_vlc2(), get_xbits(), h261_decode_block(), h261_decode_gob_header(), h261_resync(), h263_decode_gob_header(), handle_rstn(), hqx_get_ac(), latm_decode_frame(), main(), message_list(), mjpeg_decode_app(), mjpegb_decode_frame(), mpeg1_decode_sequence(), mpeg4_decode_gop_header(), mpeg4_decode_partition_a(), mpeg4_decode_studio_mb(), mpeg4_is_resync(), mpeg_decode_slice(), msmpeg4v34_decode_mb(), next_start_code_studio(), read_code(), read_high_coeffs(), read_low_coeffs(), read_sbr_extension(), rv10_decode_packet(), rv10_decode_picture_header(), set_idx(), show_bits1(), show_bits_long(), svq3_decode_frame(), svq3_decode_slice_header(), tgq_decode_block(), and vble_unpack().

◆ get_bits_count()

static int get_bits_count ( const GetBitContext *  s)
inlinestatic

Definition at line 219 of file get_bits.h.

Referenced by aac_adtstoasc_filter(), aac_decode_frame(), aac_decode_frame_int(), adpcm_swf_decode(), alac_decode_frame(), align_get_bits(), bink_decode_plane(), binkb_decode_plane(), cabac_init_decoder(), categorize(), cbs_av1_read_increment(), cbs_av1_read_leb128(), cbs_av1_read_ns(), cbs_av1_read_subexp(), cbs_av1_read_unit(), cbs_av1_read_uvlc(), cbs_av1_ref_tile_data(), cbs_av1_split_fragment(), cbs_h2645_replace_ps(), cbs_h265_read_nal_unit(), cbs_jpeg_read_unit(), cbs_mpeg2_read_unit(), cbs_read_se_golomb(), cbs_read_ue_golomb(), cbs_vp9_read_increment(), cbs_vp9_read_le(), cbs_vp9_read_s(), cbs_vp9_read_unit(), cfhd_decode(), check_for_slice(), check_marker(), chs_parse_header(), cook_decode_frame(), decode_audio_specific_config_gb(), decode_band(), decode_component(), decode_envelope(), decode_frame(), decode_frame_header(), decode_hq_slice(), decode_huff(), decode_line_TMPL(), decode_lowdelay(), decode_lowdelay_slice(), decode_motion_vectors(), decode_packet(), decode_picture_timing(), decode_registered_user_data_closed_caption(), decode_rle(), decode_slice(), decode_subband(), decode_subframe(), decode_user_data(), decode_vol_header(), dvbsub_read_2bit_string(), dvbsub_read_4bit_string(), encode_picture_ls(), escape124_decode_frame(), escape130_decode_frame(), ff_cbs_read_signed(), ff_cbs_read_unsigned(), ff_dca_seek_bits(), ff_dirac_init_arith_decoder(), ff_flac_decode_frame_header(), ff_h263_resync(), ff_h264_decode_picture_parameter_set(), ff_h264_sei_decode(), ff_hevc_decode_nal_sei(), ff_ivi_decode_frame(), ff_jpegxl_verify_codestream_header(), ff_lag_rac_init(), ff_mjpeg_decode_sos(), ff_mjpeg_receive_frame(), ff_mlp_read_major_sync(), ff_mpeg4_decode_picture_header(), ff_mpeg4_decode_video_packet_header(), ff_mpeg4_frame_end(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_ext_header(), ff_rtjpeg_decode_frame_yuv420(), fill_slice(), fill_slice_long(), find_group3_syncmarker(), flac_decode_frame(), flashsv_decode_block(), flashsv_decode_frame(), frame_header_obu(), get_bits_align32(), get_bits_left(), get_consumed_bytes(), handle_rstn(), huf_unpack_enc_table(), huffman_decode(), imc_decode_block(), imc_get_coeffs(), latm_decode_audio_specific_config(), loco_decode_plane(), message_list(), metasound_read_bitstream(), mp_decode_frame(), mp_decode_layer2(), mp_decode_layer3(), mpc7_decode_frame(), mpc8_decode_frame(), mpeg4_is_resync(), mpeg_decode_slice(), mss2_decode_frame(), mxpeg_decode_frame(), parse_aux_data(), parse_band_data(), parse_bintree(), parse_coding_header(), parse_descriptor(), parse_navi_table(), parse_obu_header(), parse_optional_info(), parse_setup_header(), parse_x96_coding_header(), parse_x96_frame_exss(), parse_xbr_frame(), parse_xxch_frame(), ps_read_extension_data(), qdm2_decode_sub_packet_header(), qdm2_decode_super_block(), qt_rtp_parse_packet(), read_access_unit(), read_block_data(), read_high_coeffs(), read_huffman_tables(), read_low_coeffs(), read_restart_header(), read_sbr_data(), read_sbr_header(), read_sl_header(), relative_align_get_bits(), remaining_bits(), rv10_decode_packet(), save_bits(), sei_buffering_period(), send_picture(), seq_unpack_rle_block(), shorten_decode_frame(), svq3_decode_frame(), svq3_decode_init(), switch_buffer(), tak_decode_frame(), tak_parse(), tm2_read_stream(), truehd_core_filter(), twinvq_read_bitstream(), unpack_SQVH(), vaapi_h264_decode_slice(), vaapi_hevc_decode_slice(), vaapi_mpeg2_decode_slice(), vaapi_mpeg4_decode_slice(), vaapi_vc1_decode_slice(), vc1_decode_b_blocks(), vc1_decode_frame(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_init(), vc1_decode_p_blocks(), vorbis_decode_frame(), vorbis_floor1_decode(), wma_decode_superframe(), and wmavoice_decode_packet().

◆ skip_bits_long()

static void skip_bits_long ( GetBitContext *  s,
int  n 
)
inlinestatic

Skips the specified number of bits.

Parameters
nthe number of bits to skip, For the UNCHECKED_BITSTREAM_READER this must not cause the distance from the start to overflow int32_t. Staying within the bitstream + padding is sufficient, too.

Definition at line 291 of file get_bits.h.

Referenced by aac_decode_er_frame(), adts_decode_extradata(), ape_decode_frame(), bink_decode_plane(), binkaudio_receive_frame(), binkb_decode_plane(), check_for_slice(), dca_parse_params(), decode_audio_block(), decode_audio_specific_config_gb(), decode_component(), decode_eld_specific_config(), decode_extension_payload(), decode_fill(), decode_frame(), decode_hq_slice(), decode_inter(), decode_intra(), decode_lowdelay_slice(), decode_mvdv(), decode_pce(), decode_pic_hdr(), decode_profile_tier_level(), decode_subframe(), decode_vol_header(), decode_vop_header(), dequantize_coefficients(), dts_probe(), ensure_bits(), escape130_decode_frame(), extension_and_user_data(), ff_bgmc_decode_end(), ff_dca_core_parse_exss(), ff_dca_exss_parse(), ff_dca_seek_bits(), ff_decode_sbr_extension(), ff_dirac_init_arith_decoder(), ff_dolby_e_parse_header(), ff_eac3_parse_header(), ff_flac_parse_streaminfo(), ff_h264_decode_mb_cavlc(), ff_h264_sei_decode(), ff_ivi_decode_frame(), ff_mlp_read_major_sync(), flac_header(), flashsv_decode_block(), get_interleaved_se_golomb(), get_interleaved_ue_golomb(), get_se_golomb(), get_ue_golomb(), get_ue_golomb_31(), get_ue_golomb_long(), get_ur_golomb(), get_ur_golomb_jpegls(), handle_rstn(), huffman_decode(), hvcc_parse_ptl(), hvcc_parse_vui(), kempf_restore_buf(), latm_decode_audio_specific_config(), latm_write_frame_header(), message(), message_list(), mov_read_ddts(), mov_write_dvc1_structs(), mp_decode_layer3(), mpc7_decode_frame(), mpc7_decode_init(), nb_decode(), nelly_decode_block(), parse_aux_data(), parse_band_data(), parse_band_ext(), parse_config_ALS(), parse_descriptor(), parse_optional_info(), parse_sequence_header(), parse_setup_header(), read_diff_float_data(), read_frame_data(), read_sbr_extension(), read_sl_header(), read_specific_config(), save_bits(), skip_data_stream_element(), skip_timing_info(), speex_default_user_handler(), speex_inband_handler(), svq3_decode_slice_header(), switch_buffer(), theora_header(), tta_decode_frame(), tta_decode_init(), uvlc(), vp3_decode_frame(), and wmavoice_decode_packet().

◆ get_xbits()

static int get_xbits ( GetBitContext *  s,
int  n 
)
inlinestatic

Read MPEG-1 dc-style VLC (sign bit + mantissa with no MSB).

if MSB not set it is negative

Parameters
nlength in bits

Definition at line 321 of file get_bits.h.

Referenced by decode_dc(), decode_i_block(), jpg_decode_block(), mjpeg_decode_dc(), mpeg4_decode_dc(), mpeg4_decode_sprite_trajectory(), and mpeg4_decode_studio_block().

◆ get_xbits_le()

static int get_xbits_le ( GetBitContext *  s,
int  n 
)
inlinestatic

Definition at line 344 of file get_bits.h.

◆ get_sbits()

static int get_sbits ( GetBitContext *  s,
int  n 
)
inlinestatic

Definition at line 359 of file get_bits.h.

Referenced by ac3_decode_transform_coeffs_ch(), add_coefficients(), adpcm_swf_decode(), adx_decode(), asv1_get_level(), at1_unpack_dequant(), decode_block(), decode_block_intra(), decode_channel(), decode_element(), decode_frame(), decode_lpc(), decode_subframe(), decode_subframe_lpc(), decode_tile_info(), decorrelate(), dv_decode_video_segment(), ff_dovi_rpu_parse(), ff_eac3_decode_transform_coeffs_aht_ch(), ff_h263_decode_picture_header(), get_array(), get_block(), hq_decode_block(), mdec_decode_block_intra(), mpeg_decode_picture_display_extension(), parse_mantissas(), read_channel_params(), read_decoding_params(), read_filter_params(), read_matrix_params(), read_quant_spectral_coeffs(), read_uncoded_coeff(), seq_unpack_rle_block(), tak_decode_frame(), tgq_decode_block(), and tgv_decode_inter().

◆ get_bitsz()

static av_always_inline int get_bitsz ( GetBitContext *  s,
int  n 
)
static

Read 0-25 bits.

Definition at line 415 of file get_bits.h.

Referenced by decode_ac_filter(), decode_cdlms(), decode_channel_sf_idx(), decode_channel_wordlen(), decode_gainc_levels(), decode_gainc_npoints(), decode_macroblock(), decode_mclms(), decode_subframe(), dequantize_coefficients(), get_tail(), get_ue_golomb(), hevc_parse_slice_header(), hls_slice_header(), huffman_decode(), mpeg4_decode_dpcm_macroblock(), parse_tonal(), pitch_unquant_3tap(), qdmc_get_vlc(), read_diff_float_data(), and split_cb_shape_sign_unquant().

◆ get_bits_le()

static unsigned int get_bits_le ( GetBitContext *  s,
int  n 
)
inlinestatic

Definition at line 420 of file get_bits.h.

Referenced by adpcm_ima_wav_expand_nibble(), asv2_decode_block(), asv2_get_level(), decode_frame(), decode_inter(), decode_intra(), and decode_plane().

◆ get_bits1()

static unsigned int get_bits1 ( GetBitContext *  s)
inlinestatic

Definition at line 498 of file get_bits.h.

Referenced by ac3_parse_header(), add_coefficients(), aic_decode_coeffs(), arith_normalise(), atrac3p_decode_frame(), atrac9_decode_block(), atrac9_decode_init(), avs_decode_frame(), aw_pulse_set2(), bink_decode_plane(), binkb_decode_plane(), bitline2chunky(), bitplanar2chunky(), bitplane_decoding(), cbs_av1_read_increment(), cbs_av1_read_ns(), cbs_av1_read_uvlc(), cbs_read_se_golomb(), cbs_read_ue_golomb(), cbs_vp9_read_increment(), cbs_vp9_read_s(), check_marker(), chs_parse_band_data(), chs_parse_header(), clv_decode_frame(), codeblock(), coupling_coordinates(), coupling_strategy(), decode(), decode012(), decode210(), decode2x2(), decode4x4(), decode8x8(), decode_argb(), decode_argbi(), decode_argx(), decode_argxi(), decode_audio_block(), decode_aybr(), decode_aybri(), decode_band(), decode_band_hdr(), decode_band_structure(), decode_block(), decode_byry(), decode_byryi(), decode_c82i(), decode_c82p(), decode_ca2i(), decode_ca2p(), decode_ca4i(), decode_ca4p(), decode_cce(), decode_cdlms(), decode_channel_code_tab(), decode_channel_map(), decode_channel_residues(), decode_channel_transform(), decode_channel_wordlen(), decode_code_table_indexes(), decode_coeff(), decode_coeffs(), decode_colskip(), decode_cpe(), decode_decorrelation_matrix(), decode_display_orientation(), decode_drc_channel_exclusions(), decode_dynamic_range(), decode_eld_specific_config(), decode_element(), decode_entropy_coded_image(), decode_envelope(), decode_ext_header(), decode_film_grain_characteristics(), decode_frame(), decode_frame_header(), decode_frame_packing_arrangement(), decode_ga_specific_config(), decode_gain_info(), decode_gainc_data(), decode_gainc_levels(), decode_gainc_loc_codes(), decode_gop_header(), decode_header_trees(), decode_hrd(), decode_hrd_parameters(), decode_ics(), decode_ics_info(), decode_inter(), decode_intra(), decode_line_TMPL(), decode_lt_rps(), decode_ltp(), decode_macroblock(), decode_mb(), decode_mb_i(), decode_mb_info(), decode_mb_p(), decode_mclms(), decode_mid_side_stereo(), decode_motion(), decode_mv_component(), decode_mvdv(), decode_nal_sei_display_orientation(), decode_nal_sei_frame_packing_arrangement(), decode_new_pred(), decode_packet(), decode_palette(), decode_pce(), decode_pic(), decode_pic_hdr(), decode_prediction(), decode_profile_tier_level(), decode_qu_spectra(), decode_residual(), decode_residues(), decode_rgb(), decode_rgbi(), decode_rgbx(), decode_rgbxi(), decode_rice(), decode_rle(), decode_rowskip(), decode_run_8bit(), decode_scale_factors(), decode_scaling_list(), decode_scaling_matrices(), decode_segment(), decode_seq_header(), decode_sequence_header_adv(), decode_skip_count(), decode_slice_header(), decode_spectrum(), decode_studio_vol_header(), decode_studio_vop_header(), decode_subframe(), decode_subframe_length(), decode_tilehdr(), decode_tns(), decode_tonal_components(), decode_tones_envelope(), decode_tones_frequency(), decode_tones_info(), decode_uncompressed(), decode_vector(), decode_vol_header(), decode_vop_header(), decode_vui(), decode_vui_parameters(), decode_ybr(), decode_ybr10(), decode_ybr10i(), decode_ybri(), decode_ybyr(), decode_yry10(), decode_yry10i(), decorrelate(), decouple_info(), dirac_get_se_golomb(), dirac_unpack_idwt_params(), dirac_unpack_prediction_parameters(), dnxhd_decode_macroblock(), dts_probe(), dv_decode_video_segment(), dvbsub_read_2bit_string(), dvbsub_read_4bit_string(), escape124_decode_frame(), escape130_decode_frame(), ff_adts_header_parse(), ff_atrac3p_decode_channel_unit(), ff_avc_decode_sps(), ff_bgmc_decode(), ff_ccitt_unpack(), ff_dca_exss_parse(), ff_dca_parse_core_frame_header(), ff_decode_sbr_extension(), ff_dovi_rpu_parse(), ff_eac3_decode_transform_coeffs_aht_ch(), ff_eac3_parse_header(), ff_flac_decode_frame_header(), ff_h263_decode_mb(), ff_h263_decode_motion(), ff_h263_decode_picture_header(), 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_parse_ref_count(), ff_h264_pred_weight_table(), ff_hevc_decode_nal_pps(), ff_hevc_decode_nal_vps(), ff_hevc_decode_short_term_rps(), ff_hevc_parse_sps(), ff_intel_h263_decode_picture_header(), ff_intrax8_decode_picture(), ff_mlp_read_major_sync(), ff_mpeg4_decode_studio_slice_header(), ff_mpeg4_decode_video_packet_header(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_ext_header(), ff_msmpeg4_decode_picture_header(), ff_parse_itu_t_t35_to_dynamic_hdr10_plus(), ff_ps_read_data(), ff_tak_parse_streaminfo(), ff_vc1_decode_entry_point(), ff_vc1_decode_sequence_header(), ff_vc1_parse_frame_header(), ff_vc1_parse_frame_header_adv(), ff_vc1_pred_b_mv(), ff_vc1_pred_mv(), ff_wma_get_large_val(), ff_wma_run_level_decode(), ff_wmv2_decode_mb(), ff_wmv2_decode_picture_header(), ff_wmv2_decode_secondary_picture_header(), fic_decode_block(), find_group3_syncmarker(), flashsv_decode_frame(), frame_header_is_valid(), gb_get_v(), get_bits1_vector(), get_bits_esc4(), get_dimension(), get_dmv(), get_egolomb(), get_float(), get_num_ct_values(), get_prediction(), get_sbits_inv(), get_sr_golomb_dst(), get_subband_flags(), get_tail(), get_te0_golomb(), get_te_golomb(), get_ue_golomb(), get_unary(), get_ur_golomb_jpegls(), get_value_cached(), h261_decode_picture_header(), h263_decode_dquant(), h263_decode_gob_header(), h263_get_modb(), h263p_decode_umotion(), h264_parse_nal_header(), h264_slice_header_parse(), handle_eac3(), hcom_decode(), hevc_parse_nal_header(), hevc_parse_slice_header(), hls_slice_header(), hq_decode_mb(), hqa_decode_mb(), hqx_decode_422(), hqx_decode_422a(), hqx_decode_444(), hqx_decode_444a(), huff_reader_get_symbol(), huffman_decode(), hvcc_parse_pps(), hvcc_parse_ptl(), hvcc_parse_sps(), hvcc_parse_vui(), idx_to_quant(), imc_decode_block(), imc_get_skip_coeff(), init_tone_level_dequantization(), input_code(), ipu_decode_frame(), ivi_dec_tile_data_size(), k12(), k13(), k23(), k24(), k34(), k35(), k44(), k45(), lag_decode_prob(), ls_decode_line(), merge(), metasound_read_bitstream(), mjpeg_decode_scan(), mobiclip_decode(), mov_write_dvc1_structs(), mp_decode_layer3(), mp_get_code(), mpc7_decode_frame(), mpc7_decode_init(), mpc8_dec_base(), mpc8_decode_frame(), mpc8_decode_init(), mpeg1_decode_picture(), mpeg1_decode_sequence(), mpeg4_decode_dc(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_studio_mb(), mpeg4_decode_visual_object(), mpeg4_is_resync(), mpeg_decode_gop(), mpeg_decode_mb(), mpeg_decode_motion(), mpeg_decode_picture_coding_extension(), mpeg_decode_quant_matrix_extension(), mpeg_decode_sequence_display_extension(), mpeg_decode_sequence_extension(), msmpeg4_decode_dc(), msmpeg4v12_decode_mb(), msmpeg4v2_decode_motion(), msmpeg4v34_decode_mb(), mss2_decode_frame(), mss4_decode_image_block(), nb_decode(), on2avc_decode_subframe(), on2avc_read_ms_info(), parse(), parse_aux_data(), parse_band_ext(), parse_bit_alloc(), parse_ch(), parse_coding_header(), parse_color_config(), parse_common_header(), parse_descriptor(), parse_exponents(), parse_grid_2(), parse_indices(), parse_lbr_parameters(), parse_mb_skip(), parse_nal_units(), parse_obu_header(), parse_packet_header(), parse_ptl(), parse_rps(), parse_sequence_header(), parse_setup_header(), parse_subframe_header(), parse_tonal(), parse_x96_coding_header(), parse_x96_frame_exss(), parse_x96_subframe_header(), parse_xbr_frame(), parse_xll_parameters(), parse_xxch_frame(), pps_range_extensions(), pred_weight_table(), preview_obmc(), ps_read_extension_data(), qdm2_fft_decode_tones(), qt_rtp_parse_packet(), read_access_unit(), read_block(), read_block_types(), read_channel_data(), read_channel_params(), read_colors(), read_colorspace_details(), read_const_block_data(), read_dcs(), read_dct_coeffs(), read_decoding_params(), read_diff_float_data(), read_filter_params(), read_frame_data(), read_high_coeffs(), read_huff_channels(), read_huffman_code_normal(), read_huffman_code_simple(), read_huffman_tree(), read_map(), read_matrix_params(), read_motion_values(), read_quant_matrix_ext(), read_residue(), read_restart_header(), read_runs(), read_sbr_channel_pair_element(), read_sbr_data(), read_sbr_grid(), read_sbr_header(), read_sbr_single_channel_element(), read_sl_header(), read_specific_config(), read_table(), read_tree(), read_var_block_data(), read_vec_pos(), rv10_decode_picture_header(), rv20_decode_picture_header(), rv30_parse_slice_header(), rv34_decode_cbp(), rv34_decode_intra_mb_header(), rv40_decode_intra_types(), rv40_parse_slice_header(), sb_decode(), scaling_list_data(), scan_mmco_reset(), siren_decode(), skip_1stop_8data_bits(), skip_data_stream_element(), skip_hrd_parameters(), skip_scaling_list_data(), skip_timing_info(), smacker_decode_bigtree(), smacker_decode_header_tree(), smacker_decode_tree(), smk_get_code(), smka_decode_frame(), speex_std_stereo(), split_cb_shape_sign_unquant(), spx_coordinates(), spx_strategy(), svq1_decode_frame_header(), svq1_decode_motion_vector(), svq3_decode_init(), svq3_decode_mb(), svq3_decode_slice_header(), synth_block_fcb_acb(), synth_superframe(), synthfilt_build_sb_samples(), tak_decode_frame(), tm2_read_tree(), truehd_core_filter(), truespeech_read_frame(), tscc2_decode_mb(), twinvq_read_bitstream(), unpack_alpha(), unpack_bitstream(), unpack_block_qpis(), unpack_frame(), unpack_SQVH(), unpack_superblocks(), unpack_vectors(), uvlc(), vaapi_mpeg2_decode_slice(), vble_unpack(), vc1_decode_ac_coeff(), vc1_decode_b_mb(), vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_frame(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), vc1_decode_p_mb_intfr(), vop_dquant_decoding(), vorbis_floor1_decode(), vorbis_parse_audio_packet(), vorbis_parse_id_hdr(), vorbis_parse_setup_hdr(), vorbis_parse_setup_hdr_codebooks(), vorbis_parse_setup_hdr_mappings(), vorbis_parse_setup_hdr_modes(), vorbis_parse_setup_hdr_residues(), vp3_decode_frame(), vp6_get_nb_null(), vp6_parse_coeff_huffman(), vp8_lossless_decode_frame(), vp9_raw_reorder_frame_parse(), vp9_superframe_filter(), vp9_superframe_split_filter(), wma_decode_block(), wmv2_decode_motion(), wmv2_pred_motion(), wv_get_value(), wv_get_value_float(), x8_decode_intra_mb(), x8_get_ac_rlf(), and xan_huffman_decode().

◆ show_bits1()

static unsigned int show_bits1 ( GetBitContext *  s)
inlinestatic

Definition at line 533 of file get_bits.h.

Referenced by decode_vector(), decode_vui_parameters(), and sb_decode().

◆ skip_bits1()

static void skip_bits1 ( GetBitContext *  s)
inlinestatic

Definition at line 538 of file get_bits.h.

Referenced by decode_channel_map(), decode_display_orientation(), decode_dynamic_range(), decode_frame(), decode_frame_packing_arrangement(), decode_ga_specific_config(), decode_inter(), decode_pic(), decode_profile_tier_level(), decode_seq_header(), decode_sequence_header_adv(), decode_studio_vol_header(), decode_studio_vop_header(), decode_sublayer_hrd(), decode_vol_header(), decode_vop_header(), ff_adts_header_parse(), ff_avc_decode_sps(), ff_dolby_e_parse_header(), ff_eac3_parse_header(), ff_flv_decode_picture_header(), ff_h263_decode_mb(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_decode_ref_pic_marking(), ff_intel_h263_decode_picture_header(), ff_mpeg4_decode_studio_slice_header(), flac_header(), h261_decode_picture_header(), hevc_parse_slice_header(), hvcc_parse_sps(), hvcc_parse_vui(), ipu_decode_frame(), mpeg4_decode_gop_header(), mpeg4_decode_partition_a(), mpeg4_decode_studio_mb(), mpeg_decode_mb(), mpeg_decode_slice(), nal_unit_parse_header(), parse_band_ext(), parse_color_config(), parse_descriptor(), parse_obu_header(), parse_rps(), parse_sequence_header(), preview_obmc(), read_access_unit(), read_specific_config(), rv30_parse_slice_header(), rv40_parse_slice_header(), skip_sub_layer_hrd_parameters(), smacker_decode_header_tree(), smka_decode_frame(), svq1_decode_frame_header(), svq3_decode_slice_header(), and unpack_bitstream().

◆ get_bits_long()

static unsigned int get_bits_long ( GetBitContext *  s,
int  n 
)
inlinestatic

Read 0-32 bits.

Definition at line 546 of file get_bits.h.

Referenced by cbs_av1_read_uvlc(), chs_parse_header(), dca_parse_params(), decode_block(), decode_buffering_period(), decode_channel_residues(), decode_element(), decode_frame(), decode_gop_header(), decode_huffman2(), decode_lowdelay_slice(), decode_nal_sei_timecode(), decode_registered_user_data(), decode_rice(), decode_scalar(), decode_segment(), decode_vui(), decode_vui_parameters(), dirac_decode_picture_header(), dss_sp_unpack_coeffs(), escape124_decode_frame(), ff_cbs_read_unsigned(), ff_dca_parse_core_frame_header(), ff_dovi_rpu_parse(), ff_h264_sei_process_picture_timing(), ff_hevc_decode_nal_vps(), ff_mpeg4_decode_studio_slice_header(), ff_msmpeg4_decode_picture_header(), ff_parse_itu_t_t35_to_dynamic_hdr10_plus(), ff_wma_get_large_val(), flac_header(), get_bits64(), get_block_sizes(), get_egolomb(), get_linear(), get_rice_un(), get_sbits_long(), get_se_coef(), get_ue_coef(), get_ue_golomb_long(), get_ur_golomb(), get_ur_golomb_jpegls(), hls_slice_header(), hvcc_parse_ptl(), init_entropy_decoder(), lag_decode_prob(), latm_get_value(), mjpeg_decode_app(), mjpegb_decode_frame(), mov_read_ddts(), mov_read_stsz(), mp_read_changes_map(), mpc8_dec_base(), parse_aux_data(), parse_coding_header(), parse_common_header(), parse_config_ALS(), parse_descriptor(), parse_navi_table(), parse_x96_frame_exss(), parse_xbr_frame(), parse_xll_parameters(), parse_xxch_frame(), read_channel_data(), read_diff_float_data(), read_header(), read_huff_channels(), read_offs(), read_specific_config(), read_var_block_data(), rtp_parse_mp4_au(), show_bits_long(), skip_label(), swf_probe(), theora_header(), tm2_read_deltas(), tm2_read_tree(), truespeech_read_frame(), tta_decode_init(), vaapi_mpeg2_decode_slice(), vc1_decode_init(), vorbis_parse_id_hdr(), vorbis_parse_setup_hdr_codebooks(), wavpack_decode_block(), wv_get_value(), and wv_get_value_integer().

◆ get_bits64()

static uint64_t get_bits64 ( GetBitContext *  s,
int  n 
)
inlinestatic

Read 0-64 bits.

Definition at line 572 of file get_bits.h.

Referenced by ff_flac_parse_streaminfo(), ff_tak_parse_streaminfo(), get_ts64(), hvcc_parse_ptl(), tak_read_header(), and vorbis_floor0_decode().

◆ get_sbits_long()

static int get_sbits_long ( GetBitContext *  s,
int  n 
)
inlinestatic

Read 0-32 bits as a signed integer.

Definition at line 590 of file get_bits.h.

Referenced by chs_parse_band_data(), decode_channel_residues(), decode_element(), decode_residuals(), decode_subframe(), decode_subframe_fixed(), decode_subframe_lpc(), ff_cbs_read_signed(), and read_const_block_data().

◆ show_bits_long()

static unsigned int show_bits_long ( GetBitContext *  s,
int  n 
)
inlinestatic

Show 0-32 bits.

Definition at line 602 of file get_bits.h.

Referenced by check_for_slice(), decode_subframe(), extension_and_user_data(), ff_h263_resync(), ff_vc1_decode_entry_point(), ff_vc1_decode_sequence_header(), get_interleaved_se_golomb(), get_interleaved_ue_golomb(), get_se_golomb(), get_ue_golomb(), get_ue_golomb_31(), get_ue_golomb_long(), get_ur_golomb(), get_ur_golomb_jpegls(), lag_read_prob_header(), ls_get_code_regular(), ls_get_code_runterm(), main(), mjpeg_decode_app(), mpeg_decode_slice(), read_access_unit(), truehd_core_filter(), and tta_decode_init().

◆ init_get_bits_xe()

static int init_get_bits_xe ( GetBitContext *  s,
const uint8_t *  buffer,
int  bit_size,
int  is_le 
)
inlinestatic

Definition at line 612 of file get_bits.h.

Referenced by init_get_bits(), and init_get_bits8_le().

◆ init_get_bits()

static int init_get_bits ( GetBitContext *  s,
const uint8_t *  buffer,
int  bit_size 
)
inlinestatic

Initialize GetBitContext.

Parameters
bufferbitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes larger than the actual read bits because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
bit_sizethe size of the buffer in bits
Returns
0 on success, AVERROR_INVALIDDATA if the buffer_size would overflow.

Definition at line 649 of file get_bits.h.

Referenced by aac_adtstoasc_filter(), aac_sync(), adpcm_swf_decode(), adx_decode(), aic_decode_slice(), al_decode_frame(), apply_color_indexing_transform(), atrac1_decode_frame(), avs_decode_frame(), bitpacked_decode_yuv422p10(), cavs_decode_frame(), cbs_av1_read_unit(), cbs_av1_split_fragment(), cbs_h2645_replace_ps(), cbs_h265_read_nal_unit(), cbs_jpeg_read_unit(), cbs_mpeg2_read_unit(), cbs_vp9_read_unit(), cbs_vp9_split_fragment(), decode_audio_specific_config(), decode_bytes_and_gain(), decode_chunks(), decode_ext_header(), decode_frame(), decode_i_frame(), decode_lowdelay(), decode_p_frame(), decode_packet(), decode_plane(), decode_plane10(), decode_rle(), decode_slice(), decode_slice_alpha(), decode_slice_chroma(), decode_slice_luma(), dirac_decode_data_unit(), dss_sp_unpack_coeffs(), dts_probe(), dv_decode_video_segment(), dvbsub_read_2bit_string(), dvbsub_read_4bit_string(), encode_picture_ls(), ff_av1_packet_split(), ff_dolby_e_convert_input(), ff_flac_parse_streaminfo(), ff_h2645_packet_split(), ff_h264_sei_process_picture_timing(), ff_mjpeg_decode_init(), ff_msgsm_decode_block(), ff_rtp_send_h263_rfc2190(), ff_rv34_decode_frame(), fill_slice(), flac_header(), frame_header_is_valid(), frame_header_obu(), gsm_decode_frame(), h261_decode_frame(), h261_handle_packet(), h263_handle_packet(), h264_find_frame_end(), hl_decode_mb(), hl_decode_mb_444(), hls_pcm_sample(), hq_decode_frame(), hqa_decode_frame(), huf_decode(), imc_decode_frame(), init_get_bits8(), ipvideo_decode_format_11_opcodes(), latm_decode_audio_specific_config(), main(), message_list(), mimic_decode_frame(), mjpeg_decode_scan(), mjpegb_decode_frame(), mlp_parse(), mov_read_ddts(), mov_read_stsz(), mov_write_dvc1_structs(), mp_decode_frame(), mp_decode_layer3(), mpc7_decode_init(), mpc8_decode_init(), mpc8_parse_seektable(), mpeg1_decode_sequence(), mpeg4_decode_header(), mpeg_decode_gop(), mpeg_decode_slice(), mxpeg_decode_frame(), nelly_decode_block(), parse_fmtp_config(), parse_sequence_header(), parse_setup_header(), process_subpacket_10(), process_subpacket_11(), process_subpacket_12(), process_subpacket_9(), qdm2_decode_fft_packets(), qdm2_decode_super_block(), qt_rtp_parse_packet(), read_access_unit(), read_huffman_tables(), read_old_huffman_tables(), read_sl_header(), rtp_parse_mp4_au(), rv10_decode_packet(), rv34_decode_slice(), save_bits(), send_picture(), seq_decode_op1(), seq_unpack_rle_block(), seqvideo_decode(), sipr_decode_frame(), siren_decode(), svq1_decode_frame(), svq3_decode_init(), svq3_decode_slice_header(), synth_superframe(), tgv_decode_inter(), theora_header(), tm2_read_stream(), tqi_decode_frame(), truespeech_read_frame(), vaapi_mpeg2_decode_slice(), vble_decode_frame(), vc1_decode_frame(), vc1_decode_init(), vorbis_decode_init(), vp9_raw_reorder_frame_parse(), wma_decode_superframe(), and wmavoice_decode_init().

◆ init_get_bits8()

static int init_get_bits8 ( GetBitContext *  s,
const uint8_t *  buffer,
int  byte_size 
)
inlinestatic

Initialize GetBitContext.

Parameters
bufferbitstream buffer, must be AV_INPUT_BUFFER_PADDING_SIZE bytes larger than the actual read bits because some optimized bitstream readers read 32 or 64 bit at once and could read over the end
byte_sizethe size of the buffer in bytes
Returns
0 on success, AVERROR_INVALIDDATA if the buffer_size would overflow.

Definition at line 667 of file get_bits.h.

Referenced by aac_decode_frame(), ac3_decode_frame(), adpcm_decode_frame(), adts_decode_extradata(), alac_decode_frame(), ape_decode_frame(), atrac3p_decode_frame(), atrac9_decode_frame(), atrac9_decode_init(), av_adts_header_parse(), avpriv_adts_header_parse(), avpriv_dca_parse_core_frame_header(), avpriv_mpeg4audio_get_config2(), avpriv_tak_parse_streaminfo(), binkaudio_receive_frame(), bitline2chunky(), bitplanar2chunky(), cfhd_decode(), cllc_decode_frame(), clv_decode_frame(), cri_decode_frame(), dca_parse_params(), decode_blocks(), decode_extradata_ps(), decode_frame(), decode_frame_header(), decode_header_trees(), decode_huff(), decode_huffman2(), decode_index_tilemap(), decode_inter_plane(), decode_intra_plane(), decode_motion_vectors(), decode_mvdv(), decode_nal_sei_message(), decode_nal_units(), decode_packet(), decode_palette(), decode_palmapdata(), decode_plane(), decode_slice(), decode_slice_thread(), decode_subband_internal(), decode_tiledata(), decode_wmv9(), dnxhd_decode_row(), dxtory_decode_v2(), eac3_core_filter(), escape124_decode_frame(), escape130_decode_frame(), evrc_decode_frame(), ff_av1_parse_seq_header(), ff_avc_decode_sps(), ff_ccitt_unpack(), ff_dca_core_parse(), ff_dca_core_parse_exss(), ff_dca_exss_parse(), ff_dovi_rpu_parse(), ff_h263_decode_frame(), ff_h264_sei_decode(), ff_hls_senc_parse_audio_setup_info(), ff_ivi_decode_frame(), ff_jpegxl_verify_codestream_header(), ff_mjpeg_receive_frame(), ff_opus_rc_dec_init(), ff_parse_a53_cc(), ff_parse_itu_t_t35_to_dynamic_hdr10_plus(), ff_parse_itu_t_t35_to_dynamic_hdr_vivid(), ff_rtjpeg_decode_frame_yuv420(), ffat_create_decoder(), fic_decode_slice(), flac_decode_frame(), flashsv_decode_frame(), fraps2_decode_plane(), g722_decode_frame(), generate_fake_vps(), get_last_needed_nal(), h264_probe(), handle_eac3(), hcom_decode(), hls_decode_entry_wpp(), horizontal_fill(), huf_unpack_enc_table(), hvcc_add_nal_unit(), ilbc_decode_frame(), ipu_decode_frame(), ir2_decode_frame(), jpg_decode_data(), kempf_restore_buf(), lag_decode_arith_plane(), latm_decode_frame(), latm_write_frame_header(), loco_decode_plane(), magy_decode_slice(), magy_decode_slice10(), metasound_read_bitstream(), mobiclip_decode(), mpc7_decode_frame(), mpc8_decode_frame(), mpeg1_decode_picture(), mpeg_decode_a53_cc(), mss1_decode_frame(), mss2_decode_frame(), mss4_decode_frame(), mxf_parse_h264_frame(), on2avc_decode_subframe(), parse(), parse_avs2_seq_header(), parse_avs3_nal_units(), parse_frame(), parse_grid_1_chunk(), parse_high_res_grid(), parse_lfe_chunk(), parse_nal_units(), parse_obu_header(), parse_tonal_chunk(), parse_tonal_group(), parse_ts1_chunk(), parse_ts2_chunk(), pcx_decode_frame(), qcelp_decode_frame(), qdmc_decode_frame(), ra144_decode_frame(), ra288_decode_frame(), read_high_coeffs(), read_specific_config(), shn_probe(), shorten_decode_frame(), siren_decode(), smka_decode_frame(), speex_decode_frame(), svq1_decode_frame(), svq3_decode_frame(), swf_probe(), tak_decode_frame(), tak_parse(), tak_read_header(), tgq_decode_mb(), truehd_core_filter(), truemotion2rt_decode_frame(), tscc2_decode_slice(), tta_decode_frame(), tta_decode_init(), twinvq_read_bitstream(), unpack_bitstream(), unpack_gray(), vc1_decode_frame(), vc1_decode_init(), vc1_extract_header(), vorbis_decode_frame(), vp3_decode_frame(), vp6_parse_header(), vp8_lossless_decode_frame(), vp9_superframe_filter(), vp9_superframe_split_filter(), wavpack_decode_block(), wmavoice_decode_packet(), and xan_huffman_decode().

◆ init_get_bits8_le()

static int init_get_bits8_le ( GetBitContext *  s,
const uint8_t *  buffer,
int  byte_size 
)
inlinestatic

Definition at line 675 of file get_bits.h.

Referenced by decode_frame(), and decode_plane().

◆ align_get_bits()

static const uint8_t* align_get_bits ( GetBitContext *  s)
inlinestatic

Definition at line 683 of file get_bits.h.

Referenced by atrac9_decode_frame(), avs_decode_frame(), cabac_init_decoder(), decode_band(), decode_band_hdr(), decode_component(), decode_frame(), decode_frame_header(), decode_gop_header(), decode_hq_slice(), decode_inter_plane(), decode_intra_plane(), decode_lowdelay(), decode_mb_info(), decode_pic_hdr(), decode_rle(), decode_slice(), dirac_unpack_block_motion_data(), dirac_unpack_idwt_params(), dirac_unpack_prediction_parameters(), ff_ccitt_unpack(), ff_copy_pce_data(), ff_dirac_init_arith_decoder(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_decode_mb_cavlc(), ff_jpegls_decode_picture(), ff_lag_rac_init(), ff_mjpeg_decode_sos(), ff_mpeg4_decode_picture_header(), ff_tak_decode_frame_header(), h261_resync(), handle_rstn(), ipu_decode_frame(), ivi_dec_tile_data_size(), ivi_decode_blocks(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), mjpeg_decode_app(), mp_decode_frame(), mpeg4_is_resync(), mpeg_decode_slice(), mss2_decode_frame(), next_start_code_studio(), read_block(), read_channel_data(), read_diff_float_data(), read_frame_data(), read_high_coeffs(), read_low_coeffs(), read_specific_config(), skip_data_stream_element(), tak_decode_frame(), tta_decode_frame(), and wma_decode_block().

◆ set_idx()

static int set_idx ( GetBitContext *  s,
int  code,
int *  n,
int *  nb_bits,
const VLCElem *  table 
)
inlinestatic

Definition at line 766 of file get_bits.h.

Referenced by get_vlc2().

◆ get_vlc2()

static av_always_inline int get_vlc2 ( GetBitContext *  s,
const VLCElem *  table,
int  bits,
int  max_depth 
)
static

Parse a vlc code.

Parameters
bitsis the number of bits which will be read at once, must be identical to nb_bits in init_vlc()
max_depthis the number of times bits bits must be read to completely read the longest vlc code = (max_vlc_length + bits - 1) / bits
Returns
the code parsed or -1 if no vlc matches

Definition at line 787 of file get_bits.h.

Referenced by asv1_decode_block(), asv1_get_level(), bitplane_decoding(), dca_get_vlc(), decode_argb(), decode_argbi(), decode_argx(), decode_argxi(), decode_aybr(), decode_aybri(), decode_band_numwavs(), decode_block(), decode_byry(), decode_byryi(), decode_c82i(), decode_c82p(), decode_ca2i(), decode_ca2p(), decode_ca4i(), decode_ca4p(), decode_cce(), decode_channel(), decode_channel_sf_idx(), decode_channel_wordlen(), decode_coeff(), decode_coeffs(), decode_dc(), decode_envelope(), decode_exp_vlc(), decode_frame(), decode_gainc_levels(), decode_gainc_loc_codes(), decode_gainc_npoints(), decode_group3_1d_line(), decode_group3_2d_line(), decode_huff(), decode_huffman2(), decode_i_block(), decode_i_frame(), decode_inter(), decode_intra(), decode_mb_info(), decode_mv_component(), decode_p_block(), decode_plane(), decode_plane10(), decode_plane_bitstream(), decode_qu_spectra(), decode_residual(), decode_rgb(), decode_rgbi(), decode_rgbx(), decode_rgbxi(), decode_rle(), decode_scale_factors(), decode_scalefactors(), decode_tile_info(), decode_tones_amplitude(), decode_tones_frequency(), decode_tones_info(), decode_ybr(), decode_ybr10(), decode_ybr10i(), decode_ybri(), decode_ybyr(), decode_yry10(), decode_yry10i(), decouple_info(), ff_h263_decode_mb(), ff_h263_decode_motion(), ff_msmpeg4_decode_motion(), ff_rv_decode_dc(), ff_wma_run_level_decode(), ff_wmv2_decode_mb(), fraps2_decode_plane(), gainc_level_mode1m(), gainc_loc_mode1(), get_cbphi(), get_coeff(), get_mvdata_interlaced(), get_scale_idx(), h261_decode_mb(), hq_decode_block(), hqa_decode_mb(), hqx_decode_422a(), hqx_decode_444a(), huf_decode(), huff_reader_get_symbol(), huffman_decode(), idx_to_quant(), imc_read_level_coeffs(), ir2_get_code(), ivi_decode_coded_blocks(), jpg_decode_block(), magy_decode_slice(), magy_decode_slice10(), mjpeg_decode_dc(), mobiclip_decode(), mp_get_vlc(), mpc7_decode_frame(), mpc8_decode_frame(), mpeg4_decode_dc(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_sprite_trajectory(), mpeg4_decode_studio_block(), mpeg_decode_mb(), mpeg_decode_motion(), mpeg_decode_slice(), msmpeg4_decode_dc(), msmpeg4v12_decode_mb(), msmpeg4v2_decode_motion(), msmpeg4v34_decode_mb(), mss4_decode_dct(), on2avc_decode_band_scales(), on2avc_decode_pairs(), on2avc_decode_quads(), parse_ch(), parse_vlc(), predict_motion(), preview_obmc(), qdm2_get_vlc(), qdmc_get_vlc(), read_bfraction(), read_coeffs_coarse(), read_huff_channels(), read_quant_spectral_coeffs(), read_run_encoding(), read_sbr_envelope(), read_sbr_noise(), read_scalefactors(), rv34_decode_block(), rv34_decode_cbp(), rv40_decode_intra_types(), rv40_decode_mb_info(), setup_classifs(), smacker_decode_bigtree(), smka_decode_frame(), svq1_decode_block_intra(), svq1_decode_block_non_intra(), svq1_decode_delta_block(), svq1_decode_motion_vector(), synth_frame(), tm2_get_token(), tscc2_decode_mb(), unpack_block_qpis(), unpack_modes(), unpack_SQVH(), unpack_superblocks(), unpack_vectors(), unpack_vlcs(), vc1_decode_ac_coeff(), vc1_decode_b_mb(), vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_i_block(), vc1_decode_i_block_adv(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_decode_p_mb(), vc1_decode_p_mb_intfi(), vc1_decode_p_mb_intfr(), vlc_decode_block(), vorbis_floor0_decode(), vorbis_floor1_decode(), vorbis_residue_decode_internal(), vp4_get_mv(), vp6_parse_coeff_huffman(), wma_decode_block(), wnv1_get_code(), x8_get_ac_rlf(), x8_get_dc_rlf(), and x8_get_orient_vlc().

◆ decode012()

static int decode012 ( GetBitContext *  gb)
inlinestatic

Definition at line 821 of file get_bits.h.

Referenced by decode_frame_header(), ff_msmpeg4_decode_picture_header(), ff_vc1_parse_frame_header(), ff_vc1_parse_frame_header_adv(), ff_wmv2_decode_mb(), ff_wmv2_decode_secondary_picture_header(), msmpeg4v34_decode_mb(), mss4_decode_frame(), vc1_decode_b_mb(), vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_p_block(), and wmv2_decode_inter_block().

◆ decode210()

static int decode210 ( GetBitContext *  gb)
inlinestatic

Definition at line 831 of file get_bits.h.

Referenced by decode_mb(), ff_vc1_parse_frame_header_adv(), and vc1_decode_ac_coeff().

◆ get_bits_left()

static int get_bits_left ( GetBitContext *  gb)
inlinestatic

Definition at line 839 of file get_bits.h.

Referenced by aac_decode_er_frame(), aac_decode_frame_int(), add_coefficients(), aic_decode_coeffs(), al_decode_frame(), alac_decode_frame(), ape_decode_value_3860(), arith_normalise(), atrac3p_decode_frame(), bink_decode_plane(), binkaudio_receive_frame(), bit_copy(), cabac_init_decoder(), cbs_av1_get_payload_bytes_left(), cbs_av1_read_increment(), cbs_av1_read_ns(), cbs_av1_read_uvlc(), cbs_av1_split_fragment(), cbs_h2645_read_more_rbsp_data(), cbs_mpeg2_read_unit(), cbs_read_se_golomb(), cbs_read_ue_golomb(), cbs_vp9_read_increment(), cbs_vp9_read_le(), cbs_vp9_read_s(), check_slice_end(), chs_parse_band_data(), cllc_decode_frame(), clv_decode_frame(), codeblock(), copy_bits(), cri_decode_frame(), decode_422_bitstream(), decode_array_0000(), decode_band_types(), decode_block(), decode_channel(), decode_channel_residues(), decode_component(), decode_eld_specific_config(), decode_element(), decode_entropy_coded_image(), decode_envelope(), decode_frame(), decode_gain_info(), decode_gray_bitstream(), decode_group3_1d_line(), decode_group3_2d_line(), decode_header_trees(), decode_hq_slice(), decode_huff(), decode_huffman2(), decode_i_block(), decode_inter(), decode_inter_plane(), decode_intra(), decode_intra_plane(), decode_lowdelay(), decode_lowdelay_slice(), decode_mb(), decode_mb_info(), decode_motion_vectors(), decode_p_block(), decode_pce(), decode_pic(), decode_pic_hdr(), decode_picture_timing(), decode_plane(), decode_plane10(), decode_plane_bitstream(), decode_profile_tier_level(), decode_rice(), decode_skip_count(), decode_slice(), decode_studio_vop_header(), decode_subframe(), decode_subframe_length(), decode_uncompressed(), decode_vector(), decode_vol_header(), decode_vop_header(), decode_vui(), decode_vui_parameters(), dv_decode_video_segment(), dx2_decode_slice_410(), dx2_decode_slice_420(), dx2_decode_slice_444(), dx2_decode_slice_5x5(), dx2_decode_slice_rgb(), ensure_bits(), escape124_decode_frame(), ff_bgmc_decode_init(), ff_cbs_read_signed(), ff_cbs_read_unsigned(), ff_dirac_init_arith_decoder(), ff_dolby_e_parse_header(), ff_h263_decode_frame(), ff_h263_decode_mb(), ff_h263_decode_picture_header(), ff_h263_resync(), ff_h264_decode_mb_cavlc(), ff_h264_decode_seq_parameter_set(), ff_h264_sei_decode(), ff_hevc_decode_nal_pps(), ff_hevc_decode_nal_sei(), ff_hevc_decode_nal_vps(), ff_hevc_parse_sps(), ff_intel_h263_decode_picture_header(), ff_intrax8_decode_picture(), ff_ivi_decode_frame(), ff_jpegls_decode_picture(), ff_jpegxl_verify_codestream_header(), ff_lag_rac_init(), ff_mjpeg_decode_dht(), ff_mjpeg_decode_dqt(), ff_mjpeg_decode_sos(), ff_mjpeg_receive_frame(), ff_mpeg4_decode_studio_slice_header(), ff_mpeg4audio_get_config_gb(), ff_msmpeg4_decode_block(), ff_msmpeg4_decode_picture_header(), ff_parse_a53_cc(), ff_parse_itu_t_t35_to_dynamic_hdr10_plus(), ff_parse_itu_t_t35_to_dynamic_hdr_vivid(), ff_vc1_parse_frame_header(), ff_wmv2_decode_mb(), ff_wmv2_decode_secondary_picture_header(), fic_decode_block(), flashsv_decode_frame(), fraps2_decode_plane(), get_block(), get_dimension(), get_interleaved_ue_golomb(), get_rice_ook(), get_rice_un(), get_sr_golomb_dst(), get_ts64(), get_ur_golomb_jpegls(), h261_decode_mb(), h261_decode_picture_header(), h261_handle_packet(), h261_resync(), h263_decode_gob_header(), h263_handle_packet(), h264_find_frame_end(), handle_rstn(), hcom_decode(), hls_slice_header(), hqa_decode_mb(), huf_decode(), init_quantized_coeffs_elem0(), init_tone_level_dequantization(), ipu_decode_frame(), ipvideo_decode_format_11_opcodes(), ir2_decode_plane(), ir2_decode_plane_inter(), is_input_end(), jpg_decode_block(), latm_decode_audio_specific_config(), ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), loco_get_rice(), ls_decode_line(), magy_decode_slice(), magy_decode_slice10(), message_list(), mjpeg_decode_app(), mjpeg_decode_com(), mjpeg_decode_scan(), mjpeg_decode_scan_progressive_ac(), mjpegb_decode_frame(), mp_decode_frame(), mp_decode_layer3(), mpc8_decode_frame(), mpc8_parse_seektable(), mpeg4_decode_studio_mb(), mpeg_decode_a53_cc(), mpeg_decode_slice(), msmpeg4v34_decode_mb(), nb_decode(), next_start_code_studio(), parse_aux_data(), parse_bintree(), parse_ch(), parse_channel(), parse_coding_header(), parse_config_ALS(), parse_descriptor(), parse_fmtp_config(), parse_grid_1_chunk(), parse_grid_2(), parse_mb_skip(), parse_obu_header(), parse_packet_header(), parse_ptl(), parse_rps(), parse_sequence_header(), parse_setup_header(), parse_subframe_audio(), parse_subframe_header(), parse_tonal(), parse_tonal_chunk(), parse_x96_coding_header(), parse_x96_subframe_audio(), parse_x96_subframe_header(), parse_xbr_subframe(), qdm2_fft_decode_tones(), qdmc_get_vlc(), read_audio_mux_element(), read_block(), read_block_types(), read_code(), read_colors(), read_dcs(), read_dct_coeffs(), read_diff_float_data(), read_frame_data(), read_header(), read_len_table(), read_motion_values(), read_patterns(), read_payload_length_info(), read_quant_matrix_ext(), read_runs(), read_specific_config(), read_stream_mux_config(), read_tree(), rice_decompress(), sb_decode(), seq_unpack_rle_block(), shorten_decode_frame(), siren_decode(), skip_1stop_8data_bits(), skip_data_stream_element(), skip_hdr_extension(), smacker_decode_bigtree(), smacker_decode_tree(), smk_get_code(), smka_decode_frame(), svq1_decode_frame_header(), svq3_decode_frame(), svq3_decode_slice_header(), synth_superframe(), synthfilt_build_sb_samples(), tak_decode_frame(), tgv_decode_inter(), tm2_read_stream(), tscc2_decode_mb(), tta_decode_frame(), unpack_alpha(), unpack_block_qpis(), unpack_codebook(), unpack_dct_coeffs(), unpack_modes(), unpack_superblocks(), unpack_vectors(), unpack_vlcs(), user_data(), uvlc(), vble_unpack(), vc1_decode_ac_coeff(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), vp6_parse_coeff_huffman(), wavpack_decode_block(), wma_decode_block(), wma_decode_superframe(), wmavoice_decode_packet(), wv_get_value(), wv_get_value_float(), wv_get_value_integer(), and xan_huffman_decode().

◆ skip_1stop_8data_bits()

static int skip_1stop_8data_bits ( GetBitContext *  gb)
inlinestatic

Definition at line 844 of file get_bits.h.

Referenced by ff_flv_decode_picture_header(), ff_h263_decode_picture_header(), ff_intel_h263_decode_picture_header(), fill_slice(), h261_decode_gob_header(), h261_decode_picture_header(), mpeg_decode_slice(), svq1_decode_frame_header(), svq3_decode_init(), svq3_decode_slice_header(), and vaapi_mpeg2_decode_slice().

name
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
Definition: writing_filters.txt:88
av_unused
#define av_unused
Definition: attributes.h:131
table
static const uint16_t table[]
Definition: prosumer.c:206
bits
uint8_t bits
Definition: vp3data.h:141
if
if(ret)
Definition: filter_design.txt:179
index
int index
Definition: gxfenc.c:89
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:178
SHOW_UBITS
#define SHOW_UBITS(name, gb, num)
Definition: get_bits.h:211
buffer
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
Definition: filter_design.txt:49
Generated on Wed Aug 24 2022 21:42:31 for FFmpeg by   doxygen 1.8.17