common internal and external API header More...

#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <math.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "attributes.h"
#include "error.h"
#include "macros.h"
#include "version.h"
#include "config.h"
#include "intmath.h"
#include "internal.h"

Macros
#define	RSHIFT(a, b)

#define	ROUNDED_DIV(a, b)

#define	AV_CEIL_RSHIFT(a, b)

#define	FF_CEIL_RSHIFT AV_CEIL_RSHIFT

#define	FFUDIV(a, b)

#define	FFUMOD(a, b)

#define	FFABS(a)
	Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable as absolute values of their type.

#define	FFSIGN(a)

#define	FFNABS(a)
	Negative Absolute value.

#define	FFABSU(a)
	Unsigned Absolute value.

#define	FFABS64U(a)

#define	av_ceil_log2 av_ceil_log2_c

#define	av_clip av_clip_c

#define	av_clip64 av_clip64_c

#define	av_clip_uint8 av_clip_uint8_c

#define	av_clip_int8 av_clip_int8_c

#define	av_clip_uint16 av_clip_uint16_c

#define	av_clip_int16 av_clip_int16_c

#define	av_clipl_int32 av_clipl_int32_c

#define	av_clip_intp2 av_clip_intp2_c

#define	av_clip_uintp2 av_clip_uintp2_c

#define	av_sat_add32 av_sat_add32_c

#define	av_sat_dadd32 av_sat_dadd32_c

#define	av_sat_sub32 av_sat_sub32_c

#define	av_sat_dsub32 av_sat_dsub32_c

#define	av_sat_add64 av_sat_add64_c

#define	av_sat_sub64 av_sat_sub64_c

#define	av_clipf av_clipf_c

#define	av_clipd av_clipd_c

#define	av_zero_extend av_zero_extend_c

#define	av_popcount av_popcount_c

#define	av_popcount64 av_popcount64_c

#define	GET_UTF8(val, GET_BYTE, ERROR)
	Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.

#define	GET_UTF16(val, GET_16BIT, ERROR)
	Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.

#define	PUT_UTF8(val, tmp, PUT_BYTE)
	Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).

#define	PUT_UTF16(val, tmp, PUT_16BIT)
	Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).

Functions
static av_always_inline av_const int	av_clip_c (int a, int amin, int amax)
	Clip a signed integer value into the amin-amax range.

static av_always_inline av_const int64_t	av_clip64_c (int64_t a, int64_t amin, int64_t amax)
	Clip a signed 64bit integer value into the amin-amax range.

static av_always_inline av_const uint8_t	av_clip_uint8_c (int a)
	Clip a signed integer value into the 0-255 range.

static av_always_inline av_const int8_t	av_clip_int8_c (int a)
	Clip a signed integer value into the -128,127 range.

static av_always_inline av_const uint16_t	av_clip_uint16_c (int a)
	Clip a signed integer value into the 0-65535 range.

static av_always_inline av_const int16_t	av_clip_int16_c (int a)
	Clip a signed integer value into the -32768,32767 range.

static av_always_inline av_const int32_t	av_clipl_int32_c (int64_t a)
	Clip a signed 64-bit integer value into the -2147483648,2147483647 range.

static av_always_inline av_const int	av_clip_intp2_c (int a, int p)
	Clip a signed integer into the -(2^p),(2^p-1) range.

static av_always_inline av_const unsigned	av_clip_uintp2_c (int a, int p)
	Clip a signed integer to an unsigned power of two range.

static av_always_inline av_const unsigned	av_zero_extend_c (unsigned a, unsigned p)
	Clear high bits from an unsigned integer starting with specific bit position.

static av_always_inline int	av_sat_add32_c (int a, int b)
	Add two signed 32-bit values with saturation.

static av_always_inline int	av_sat_dadd32_c (int a, int b)
	Add a doubled value to another value with saturation at both stages.

static av_always_inline int	av_sat_sub32_c (int a, int b)
	Subtract two signed 32-bit values with saturation.

static av_always_inline int	av_sat_dsub32_c (int a, int b)
	Subtract a doubled value from another value with saturation at both stages.

static av_always_inline int64_t	av_sat_add64_c (int64_t a, int64_t b)
	Add two signed 64-bit values with saturation.

static av_always_inline int64_t	av_sat_sub64_c (int64_t a, int64_t b)
	Subtract two signed 64-bit values with saturation.

static av_always_inline av_const float	av_clipf_c (float a, float amin, float amax)
	Clip a float value into the amin-amax range.

static av_always_inline av_const double	av_clipd_c (double a, double amin, double amax)
	Clip a double value into the amin-amax range.

static av_always_inline av_const int	av_ceil_log2_c (int x)
	Compute ceil(log2(x)).

static av_always_inline av_const int	av_popcount_c (uint32_t x)
	Count number of bits set to one in x.

static av_always_inline av_const int	av_popcount64_c (uint64_t x)
	Count number of bits set to one in x.

static av_always_inline av_const int	av_parity_c (uint32_t v)

Detailed Description

common internal and external API header

Definition in file common.h.

Macro Definition Documentation

◆ RSHIFT

#define RSHIFT	(		a,
			b )

Value:

((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))

a

int a

Definition h264pred_template.c:416

b

#define b

Definition input.c:43

Definition at line 56 of file common.h.

Referenced by checkasm_check_sw_ops(), dequantization_int_97(), get_amv(), palette_subblock_data(), unpack_vectors(), and vp56_decode_4mv().

◆ ROUNDED_DIV

#define ROUNDED_DIV	(		a,
			b )

Value:

(((a)>=0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))

Definition at line 58 of file common.h.

Referenced by add_peak(), add_peak(), adx_encode(), decide_ac_pred(), decode_ppc(), decode_vop_header(), draw_arrow(), ff_convert_matrix(), ff_me_search_ntss(), ff_me_search_tdls(), ff_me_search_tss(), ff_mpeg4_pred_ac(), ff_vvc_intra_inv_angle_derive(), fill_rgb2yuv_table(), filter_frame(), flush_frame(), generate_eye_tape_map(), get_dc(), initFilter(), mov_write_tmcd_tag(), mpeg4_decode_sprite_trajectory(), set_frame_data(), and vect_division().

◆ AV_CEIL_RSHIFT

#define AV_CEIL_RSHIFT	(		a,
			b )

Value:

(!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \

: ((a) + (1<<(b)) - 1) >> (b))

av_builtin_constant_p

#define av_builtin_constant_p

Definition attributes.h:193

Definition at line 60 of file common.h.

◆ FF_CEIL_RSHIFT

#define FF_CEIL_RSHIFT AV_CEIL_RSHIFT

Definition at line 63 of file common.h.

Referenced by ph_vb_pos(), and v360_vulkan_filter_frame().

◆ FFUDIV

#define FFUDIV	(		a,
			b )

Value:

(((a)>0 ?(a):(a)-(b)+1) / (b))

Definition at line 65 of file common.h.

Referenced by ff_set_mpeg4_time(), mpeg4_encode_gop_header(), and mpeg4_encode_picture_header().

◆ FFUMOD

#define FFUMOD	(		a,
			b )

Value:

((a)-(b)*FFUDIV(a,b))

FFUDIV

#define FFUDIV(a, b)

Definition common.h:65

Definition at line 66 of file common.h.

Referenced by ff_hevc_set_qPy(), mpeg4_encode_gop_header(), mpeg4_encode_picture_header(), and set_qp_y().

◆ FFABS

#define FFABS ( a )

Value:

((a) >= 0 ? (a) : (-(a)))

Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable as absolute values of their type.

This is the same as with *abs()

See also: FFNABS()

Definition at line 74 of file common.h.

Referenced by acb_search(), alf_classify(), alloc_scratch_buffers(), apply_channel_coupling(), apply_tilt_comp(), aptx_quantize_difference(), asf_read_stream_properties(), autocorr_calc(), av_normalize_sf(), av_reduce(), avi_read_header(), await_reference_row(), boundary_strength(), boundary_strength(), bswap_16bpc(), bswap_32bpc(), build_abs_diff_mask(), calc_lsq_max_fit_error(), calc_precision(), calculate_mask_curve(), calculate_scales(), cdg_scroll(), celt_icwrsi(), celt_quant_final(), celt_search_for_tf(), cfhd_encode_frame(), cfhd_encode_init(), CHECK(), check_draw_edges(), check_mv(), check_rgb24toyv12(), choose_rct_params(), choose_rct_params_bayer(), chroma(), chroma16(), cluster_mvs(), codebook_sanity_check_for_rate_quarter(), comp_harmonic_coeff(), config_output(), config_video_output(), convolution_x(), count_hq_slice(), D(), dct_error(), dct_max8x8_c(), dct_quantize_refine(), dct_quantize_trellis_c(), dct_single_coeff_elimination(), deband_16_c(), deband_16_coupling_c(), deband_8_c(), deband_8_coupling_c(), decode_block(), decode_block(), decode_bmv_frame(), decode_cblk(), decode_dct(), decode_filter(), decode_fixed_vector(), decode_frame(), decode_frame(), decode_frame(), decode_frame(), decode_frame_header(), decode_header(), decode_pic(), decode_q_branch(), decode_tones_amplitude(), derive_bdof_vx_vy(), derive_mmvd(), dirac_decode_data_unit(), dirac_decode_picture_header(), do_backgroundkey16_slice(), do_backgroundkey_slice(), do_plc(), dpcm_predict(), draw_aaline(), draw_cursor(), draw_line(), draw_line(), draw_line(), draw_line(), draw_line(), draw_rline(), draw_scope(), draw_sono(), draw_text(), dss_sp_get_normalize_bits(), dss_sp_vector_sum(), dts_probe(), dv_set_class_number_hd(), dv_set_class_number_sd(), emulated_edge_mc(), emulated_edge_mc(), encode_acs(), encode_acs(), encode_block(), encode_float32_remap(), encode_float32_remap_segment(), encode_header(), encode_picture_ls(), encode_q_branch(), encode_q_branch2(), encode_subband(), encode_subband_c0run(), estimate_acs(), estimate_coeff(), estimate_dcs(), estimate_stereo_mode(), estimate_stereo_mode(), estimate_timings_from_pts(), feed(), ff_configure_buffers_for_index(), ff_dcaadpcm_subband_analysis(), ff_g723_1_scale_vector(), ff_h264_direct_ref_list_init(), ff_hls_write_file_entry(), ff_idet_filter_line_c(), ff_idet_filter_line_c_16bit(), ff_jpegls_update_state_regular(), ff_me_cmp_sad(), ff_me_init(), ff_me_search_ntss(), ff_mpeg1_init_uni_ac_vlc(), ff_mpv_framesize_alloc(), ff_nelly_get_sample_bits(), ff_opus_rc_enc_laplace(), ff_scene_sad16_c(), ff_scene_sad_c(), ff_sws_op_list_optimize(), ff_vc1_pred_b_mv(), ff_vc1_pred_dc(), ff_vc1_pred_mv(), ff_vvc_store_gpm_mvf(), ff_vvc_wide_angle_mode_mapping(), fill_l1distlut(), fill_sierpinski(), fill_with_noise(), filter16_kirsch(), filter_chroma_edge(), filter_dbl(), filter_flt(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_kirsch(), filter_luma_edge(), flat(), flat16(), flv_read_packet(), gain_dequantization(), gen_sub_ass(), generate_noise(), generate_spread_table(), generate_window_func(), get_barrel_map(), get_barrel_split_map(), get_block_bits(), get_cb(), get_cbrt_h(), get_cbrt_h2(), get_cubemap_face_map(), get_diff_limited_q(), get_fcb_param(), get_lin_h2(), get_log_h(), get_log_h2(), get_needed_flags(), get_qminmax(), get_rrp(), get_sad_ob(), get_sae(), get_sbad(), get_sbad_ob(), get_scale_factor(), get_shift(), get_sqrt_h(), get_sqrt_h2(), get_tilt_comp(), gif_read_image(), guess_mv(), gxf_seek(), h261_encode_block(), h263_h_loop_filter_c(), h263_v_loop_filter_c(), h264_filter(), h264_loop_filter_chroma(), h264_loop_filter_chroma_intra(), h264_loop_filter_luma(), h264_loop_filter_luma_intra(), h_block_filter(), hadamard8_intra8x8_c(), hadamard_func(), hard_thresholding(), headroom(), hev(), hev(), image_copy_plane(), implicit_weight_table(), init_uni_ac_vlc(), initFilter(), interpol(), intra_pred(), inv_predict_11(), is_fallback_mode(), levinson_durbin(), limit_clip_spectrum(), limitdiff16(), limitdiff8(), log_add(), long_term_filter(), loop_filter(), lpc2lsp(), lpc_encode_choose_datapath(), ls_decode_line(), ls_encode_line(), ls_encode_regular(), ls_get_code_runterm(), main(), main(), make_glyphs(), max_abs_value_w16(), max_component_diff(), max_nbits(), mode05(), mode06(), mode07(), mode08(), mode10(), mode1314(), mode1516(), mode18(), mp3_sync(), mp3_update_xing(), mp3_write_xing(), mpc8_decode_frame(), mpeg4_decode_block(), mpeg4_decode_sprite_trajectory(), mpeg4_encode_mb(), msrle_decode_8_16_24_32(), mss4_decode_dct(), mvinfo_is_deblock_cand(), nb_decode(), nearest_alive(), noise(), nsse16_c(), nsse8_c(), nsse8_ssse3(), number_sbits(), packedCopyWrapper(), paf_video_decode(), parse_gradient(), parse_weights(), pitch_search(), pnm_decode_frame(), pred_spatial_direct_motion(), preservel(), print_stats(), process_command(), put_alpha_diff(), put_alpha_diff(), put_s(), put_symbol(), put_symbol_inline(), qian_thresholding(), read_highpass(), rectangle_from_corners(), remove_doubling(), render_line(), reverse_dc_prediction(), rtcp_update_jitter(), rv40_loop_filter_strength(), rv40_strong_loop_filter(), rv40_weak_loop_filter(), sab_diamond_search(), safe_bytes_pad(), sbc_calc_scalefactors(), sbc_calc_scalefactors_j(), scale_internal(), scaleforopp_x(), scaleforopp_y(), scaleforsame_x(), scaleforsame_y(), seq_unpack_rle_block(), set_metadata(), silk_is_lpc_stable(), silk_lsf2lpc(), skip_check(), sobel(), soft_thresholding(), speedhq_init_static_data(), subband_scale(), sum_abs_dctelem_c(), swap_channel_layouts_on_filter(), swri_rematrix_init(), sws_getShiftedVec(), test_apv_entropy_decode_block(), test_dwt(), test_dwtf(), threshold16_abs(), threshold8_abs(), thresholding(), tiff_unpack_strip(), ts_discontinuity_detect(), ts_str(), update_qscale(), update_stat(), update_stats(), update_vlc_state(), v_block_filter(), vc1_decode_b_mb_intfi(), vc1_decode_b_mb_intfr(), vc1_decode_i_block_adv(), vc1_decode_i_blocks_adv(), vc1_decode_intra_block(), vc1_decode_p_block(), vc1_decode_p_mb_intfi(), vc1_decode_p_mb_intfr(), vc1_filter_line(), vc1_filter_line(), vectorscope16(), vectorscope8(), vorbis_floor1_decode(), vp3_decode_frame(), vp4_get_mv(), vp6_filter(), vp7_simple_limit(), vp8_normal_limit(), vp8_simple_limit(), vp8_simple_limit(), vvc_sad(), w_c(), wmv2_pred_motion(), wv_unpack_stereo(), x8_loop_filter(), and xan_wc3_copy_pixel_run().

◆ FFSIGN

#define FFSIGN ( a )

◆ FFNABS

#define FFNABS ( a )

Value:

((a) <= 0 ? (a) : (-(a)))

Negative Absolute value.

this works for all integers of all types. As with many macros, this evaluates its argument twice, it thus must not have a sideeffect, that is FFNABS(x++) has undefined behavior.

Definition at line 83 of file common.h.

Referenced by predictor_decode_stereo_3950().

◆ FFABSU

#define FFABSU ( a )

Value:

((a) <= 0 ? -(unsigned)(a) : (unsigned)(a))

Unsigned Absolute value.

This takes the absolute value of a signed int and returns it as a unsigned. This also works with INT_MIN which would otherwise not be representable As with many macros, this evaluates its argument twice.

Definition at line 91 of file common.h.

Referenced by do_apply_filter(), and read_diff_float_data().

◆ FFABS64U

#define FFABS64U ( a )

Value:

((a) <= 0 ? -(uint64_t)(a) : (uint64_t)(a))

Definition at line 92 of file common.h.

Referenced by av_compare_ts(), lrc_write_packet(), and print_report().

◆ av_ceil_log2

◆ av_clip

#define av_clip av_clip_c

Definition at line 100 of file common.h.

Referenced by aac_encode_init(), activate(), adapt_prob(), adjust_frame_pts_to_encoder_tb(), adpcm_agm_expand_nibble(), adpcm_circus_expand_nibble(), adpcm_compress_trellis(), adpcm_ct_expand_nibble(), adpcm_flush(), adpcm_ima_alp_compress_sample(), adpcm_ima_alp_expand_nibble(), adpcm_ima_compress_sample(), adpcm_ima_cunning_expand_nibble(), adpcm_ima_escape_expand_nibble(), adpcm_ima_expand_nibble(), adpcm_ima_mtf_expand_nibble(), adpcm_ima_oki_expand_nibble(), adpcm_ima_qt_compress_sample(), adpcm_ima_wav_expand_nibble(), adpcm_sanyo_expand3(), adpcm_sanyo_expand4(), adpcm_sanyo_expand5(), adpcm_sbpro_expand_nibble(), adpcm_swf_decode(), adpcm_yamaha_compress_sample(), adpcm_yamaha_expand_nibble(), adpcm_zork_expand_nibble(), alac_encode_init(), alf_clip(), alf_filter_cc(), als_weighting(), apply_8x8(), apply_channel_coupling(), apply_prof(), apply_prof_uni(), apply_prof_uni_w(), aptx_invert_quantization(), aptx_process_subband(), apv_decode_transquant_c(), apv_write_vlc_spec(), asf_read_timestamp(), ass_log(), av_log_default_callback(), av_timecode_get_smpte(), bgmc_lut_getp(), bidirectional_obmc(), bilateral_obmc(), build_filter(), build_qp_table(), bytestream2_seek(), bytestream2_seek_p(), cabac_init_state(), cabac_init_state(), calc_bit_demand(), calc_dequant(), calc_input_response(), calc_split_position(), celt_enc_quant_pfilter(), celt_quant_fine(), check_lpc(), chroma_4mv_motion(), chroma_tc(), clamp_mv(), clamp_mv(), clip(), color_graticule(), color_graticule16(), compute_unsafe_ssd_integral_image(), config_input(), config_input(), config_input(), config_props(), create_default_qtables(), d3d12va_encode_av1_set_tile(), d3d12va_encode_h264_configure(), d3d12va_encode_hevc_configure(), dct_error(), dds_decode(), deband_16_c(), deband_16_coupling_c(), deband_8_c(), deband_8_coupling_c(), deblocking_filter_CTB(), dec_delay3_2nd(), decode(), decode(), decode_adpcm_ima_hvqm2(), decode_adpcm_ima_hvqm4(), decode_channel(), decode_envelope(), decode_frame(), decode_frame(), decode_gain_and_index(), decode_index_tilemap(), decode_init(), decode_init(), decode_mad1_24(), decode_nal_sei_timecode(), decode_pitch_lag_1_6(), decode_pitch_lag_high(), decode_pitch_lag_low(), decode_scalefactors(), decode_slice(), decode_slice_thread(), decode_subband_slice_buffered(), deflicker16(), dequantize(), dequantize_slice_buffered(), derive_bdof_vx_vy(), derive_qp(), derive_subblock_diff_mvs(), determine_bits(), direct_search(), displace_packed(), displace_planar(), do_adaptive_prediction(), draw_arrow(), draw_curves(), draw_line(), draw_response(), draw_sample_line_gray(), draw_sample_line_rgba_full(), draw_sample_line_rgba_scale(), draw_sample_p2p_gray(), draw_sample_p2p_rgba_full(), draw_sample_p2p_rgba_scale(), draw_spatial(), dxv_decode(), dxv_init(), encode_block(), encode_block(), encode_init(), encode_init(), encode_init(), encode_init(), encode_mb_internal(), encode_residual_ch(), escape130_decode_frame(), eval_expr(), eval_expr(), execute_code(), exp_quant_coarse(), ff_aac_search_for_tns(), ff_adpcm_ima_qt_expand_nibble(), ff_decode_pitch_lag(), ff_er_add_slice(), ff_ffv1_encode_init(), ff_g722_update_high_predictor(), ff_g722_update_low_predictor(), ff_gmc_c(), ff_h264_init_cabac_states(), ff_hevc_hls_residual_coding(), ff_hls_write_file_entry(), ff_id3v2_finish(), ff_jpegls_decode_picture(), ff_libwebp_encode_init_common(), ff_mpv_encode_init(), ff_mspel_motion(), ff_nelly_get_sample_bits(), ff_pcm_default_packet_size(), ff_print_time(), ff_sws_alphablendaway(), ff_vbv_update(), ff_vc1_interp_mc(), ff_vc1_mc_1mv(), ff_vc1_mc_4mv_chroma(), ff_vc1_mc_4mv_chroma4(), ff_vc1_mc_4mv_luma(), ff_vc1_pred_b_mv(), ff_vvc_clip_mv(), ffat_init_encoder(), fguv_32x32xn_c(), fgy_32x32xn_c(), fill_gamma_table(), filter(), filter16_3x3(), filter16_5x5(), filter16_7x7(), filter16_column(), filter16_kirsch(), filter16_prewitt(), filter16_roberts(), filter16_row(), filter16_scale(), filter16_scharr(), filter16_sobel(), filter181(), filter_arfq12(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_mafq12(), filter_scale(), filter_slice(), finish_block(), flashsv_encode_init(), g722_encode_init(), g726_decode(), gate_update(), gen_sub_ass(), generate(), generate_grain_uv_c(), generate_grain_y_c(), generate_noise(), get_ep_size(), get_output(), get_qminmax(), get_qtable(), get_sad_ob(), get_sbad(), get_sbad_ob(), get_xoutput(), getimag(), getreal(), gmc1_motion(), green_graticule(), green_graticule16(), gsm_decode_block(), h263_h_loop_filter_c(), h263_v_loop_filter_c(), h264_loop_filter_chroma(), h264_loop_filter_luma(), hap_init(), hap_init(), horizontal_compose_fidelityi_TMPL(), hpel_motion(), init(), init(), init(), init_dequantizer(), init_enc_options(), init_enc_options(), init_enc_options(), init_pass2(), init_qscale_tab(), init_slice_c(), init_stream(), init_tile(), init_video_param(), init_video_param_jpeg(), interpolate(), interpolate_bilinear16(), interpolate_bilinear8(), invert_graticule(), invert_graticule16(), irdft_horizontal16(), ivi_decode_blocks(), kaiser_beta(), lame_window_init(), line_dilate(), line_erode(), lmcs_derive_lut_sample(), loop_filter_c1(), loop_filter_chroma_strong(), loop_filter_chroma_strong_one_side(), loop_filter_chroma_weak(), loop_filter_l1(), loop_filter_luma_large(), loop_filter_luma_strong(), loop_filter_luma_weak(), lowest_referenced_row(), lowpass_line_complex_c_16(), lpf(), ls_decode_line(), ls_encode_line(), lsf_check_stability(), mc_chroma_scaled(), mc_luma_scaled(), mclms_update(), mip_reduced_pred(), mode01(), mode02(), mode03(), mode04(), mode05(), mode06(), mode07(), mode08(), mode09(), mode1516(), mode17(), mode18(), mode21(), mode22(), modplug_read_packet(), mp_decode_layer3(), mpeg4_decode_studio_block(), multiply(), mxf_timestamp_to_int64(), nmr_commit_channel(), nmr_setup_channel(), nmr_solve_group(), nvenc_setup_rate_control(), opus_encode_init(), parse_lfe_16(), parse_lfe_24(), pget(), photocd_decode_frame(), plot_channel_log(), plot_freq(), png_enc_init(), pred_get_y(), pred_weight_table(), predict_intra(), predictor_calc_error(), process_command(), qoa_decode_frame(), quant_band_template(), quantize(), quantize_and_encode_band_cost_template(), quantize_lpc_coefs(), rate_control(), ratecontrol_1pass(), read_var_block_data(), reflectx(), reflecty(), ringbuf_float_at(), rka_decode_init(), rv30_weak_loop_filter(), rv40_strong_loop_filter(), sb_clip_location(), sbc_encode_init(), scaleforopp_x(), scaleforopp_y(), scaleforsame_x(), scaleforsame_y(), search_for_ms(), search_for_pns(), search_for_quantizers_fast(), search_for_quantizers_twoloop(), search_for_tns_short_pooled(), set_bandwidth(), set_constqp(), set_qp_c(), set_roi_map(), set_special_band_scalefactors(), set_vbr(), sga_probe(), silk_decode_frame(), skip_bits_long(), spatial_compose_dd137i_dy_TMPL(), spatial_compose_dd137i_init_TMPL(), spatial_compose_dd97i_dy_TMPL(), spatial_compose_dd97i_init_TMPL(), spatial_compose_fidelity_TMPL(), sps_chroma_qp_table(), ssim360_tape(), store_weight(), stream_open(), subfile_seek(), sum_bits(), svc_encode_init(), svq1_motion_inter_4v_block(), svq1_motion_inter_block(), svq3_mc_dir(), svq3_mc_dir_part(), synchronize_audio(), synth_block_fcb_acb(), synth_frame(), test_apv_entropy_decode_block(), tm2_motion_block(), truespeech_apply_twopoint_filter(), truespeech_synth(), unpack(), update_index(), update_qp(), update_qscale(), update_stat(), update_volume(), vaapi_av1_start_frame(), vaapi_encode_av1_configure(), vaapi_encode_av1_init_picture_params(), vaapi_encode_av1_set_tile(), vaapi_encode_h264_configure(), vaapi_encode_h265_configure(), vaapi_encode_init_rate_control(), vaapi_encode_mjpeg_init_picture_params(), vaapi_encode_mpeg2_configure(), vaapi_encode_vp8_configure(), vaapi_encode_vp9_configure(), vbn_decode_frame(), vbn_encode(), vector_clip_int32_c(), vectorscope16(), video_frame(), video_image_display(), vp5_parse_coeff_models(), vp6_parse_coeff_models(), vvc_deblock(), wv_get_value_integer(), X264_init(), xa_read_header(), xma_decode_packet(), xyz_to_ball(), xyz_to_barrel(), xyz_to_barrelsplit(), xyz_to_cube1x6(), xyz_to_cube3x2(), xyz_to_cube6x1(), xyz_to_cylindrical(), xyz_to_cylindricalea(), xyz_to_dfisheye(), xyz_to_eac(), xyz_to_equisolid(), xyz_to_fisheye(), xyz_to_flat(), xyz_to_hammer(), xyz_to_hequirect(), xyz_to_mercator(), xyz_to_octahedron(), xyz_to_orthographic(), xyz_to_pannini(), xyz_to_sinusoidal(), xyz_to_stereographic(), yuv2rgb_write_full(), yuv2rgb_write_full(), and yuv2rgb_write_full().

◆ av_clip64

#define av_clip64 av_clip64_c

Definition at line 103 of file common.h.

Referenced by av_rescale_delta(), clip_output(), ff_dcaadpcm_do_real(), ff_pcm_default_packet_size(), filter_frame(), lrc_read_header(), mov_build_index(), mp3_seek(), prediction(), pthread_cond_timedwait(), pthread_cond_timedwait(), pulse_write_header(), and value_string().

◆ av_clip_uint8

#define av_clip_uint8 av_clip_uint8_c

Definition at line 106 of file common.h.

Referenced by add_8x8_clip_c(), add_coefficients(), add_pixels_clamped2_c(), add_pixels_clamped4_c(), add_rect_clamped_c(), alpha_inverse_prediction(), ana_convert(), batch_assign(), cas_slice8(), cavs_idct8_add_c(), cinepak_decode_codebook(), clamp_add_subtract_half(), coef2maxsf(), coef2minsf(), color_balance8(), color_balance8_p(), color_correlation(), color_correlation_gbrp(), colorcontrast_slice8(), colorcontrast_slice8p(), colorcorrect_slice8(), comp(), config_input(), copyadd_block(), create_chrominance_lut(), create_luma_lut(), decode_haar_block(), decode_huff(), deflicker8(), delta_decode(), diagonal_transformation(), dirac_hpel_filter(), dither_color(), do_despill_slice(), do_output(), dpcm_decode_frame(), draw(), draw_legend(), encode_picture(), export_row8(), fade(), ff_add_pixels_clamped_c(), ff_aom_parse_film_grain_sets(), ff_dvdclut_yuv_to_rgb(), ff_ffv1_encode_init(), ff_gradfun_filter_line_c(), ff_ivi_recompose53(), ff_ivi_recompose_haar(), ff_jpegls_decode_picture(), ff_jref_idct1_add(), ff_jref_idct1_put(), ff_line_noise_c(), ff_mss34_dct_put(), ff_put_pixels_clamped_c(), ff_update_palette(), ff_vc1_h_overlap_mmi(), ff_vc1_v_overlap_mmi(), ff_vp8_idct_add_mmi(), ff_vp8_idct_dc_add_mmi(), fic_idct_put(), filter(), filter_3x3(), filter_5x5(), filter_7x7(), filter_chroma_edge(), filter_column(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_kirsch(), filter_luma_edge(), filter_prewitt(), filter_roberts(), filter_row(), filter_scharr(), filter_sobel(), float2rgbe(), float_y_to_uint_y_wrapper(), get_dc(), get_output(), get_xoutput(), hq_idct_put(), idct(), idct(), idct10(), idct2_add(), idct2_put(), idct4col_add(), idct4col_put(), idct_add(), idct_column_true_mmi(), idct_put(), if(), inv_predict_12(), ir2_decode_plane(), ir2_decode_plane_inter(), irdft_horizontal8(), ivi_output_plane(), lerp8(), limitdiff8(), loop_filter_c1(), loop_filter_l1(), lowpass_line_complex_c(), midequalizer8(), monochrome_slice8(), mss2_blit_wmv9_template(), osq_decode_block(), p8idct(), photocd_decode_frame(), pred_angle(), process_xpal(), put_block_8x4(), put_pixels_clamped2_c(), put_pixels_clamped4_c(), put_signed_rect_clamped_8bit_c(), put_snow_qpel2_h_lowpass_8(), put_snow_qpel2_hv_lowpass_8(), put_snow_qpel2_v_lowpass_8(), refine_full(), refine_residual(), render_line(), render_line_unrolled(), resample_cubic(), resample_linear(), rgb_to_yuv(), rgba2ycocg(), rpza_encode_stream(), run_postproc(), rv34_idct_add_c(), rv34_idct_dc_add_c(), scale_samples_u8(), scale_samples_u8_small(), set(), set_frame(), shorten_decode_frame(), svq3_add_idct_c(), tdsc_yuv2rgb(), temperature_slice8(), temperature_slice8p(), tgq_dconly(), tm2_apply_deltas(), tm2_decode_blocks(), transform2(), truemotion2rt_decode_frame(), update_inter_block(), vc1_filter_line(), vc1_filter_line(), vc1_h_overlap_c(), vc1_inv_trans_4x4_c(), vc1_inv_trans_4x4_dc_c(), vc1_inv_trans_4x8_c(), vc1_inv_trans_4x8_dc_c(), vc1_inv_trans_8x4_c(), vc1_inv_trans_8x4_dc_c(), vc1_inv_trans_8x8_dc_c(), vc1_v_overlap_c(), vectorscope8(), vibrance_slice8(), vibrance_slice8p(), vp3_h_loop_filter_c(), vp3_idct_dc_add_c(), vp3_v_loop_filter_c(), vp6_filter_diag4_c(), vp6_filter_hv4(), weight_averages(), wmv2_idct_add_c(), wmv2_idct_put_c(), write_bytes(), write_parameter_block(), ws_snd_decode_frame(), x8_decode_intra_mb(), ycocg2rgba(), yuv2422_1_c_template(), yuv2422_2_c_template(), yuv2422_X_c_template(), yuv2ayuv_1_c_template(), yuv2ayuv_2_c_template(), yuv2ayuv_X_c_template(), yuv2nv12cX_c(), yuv2p01x_wrapper(), yuv2plane1_8_c(), yuv2planeX_8_c(), yuv2planeX_8_lasx(), yuv2planeX_8_ref(), yuv2planeX_u(), yuv2rgb(), yuv2rgb_1_c_template(), yuv2rgb_2_c_template(), yuv2rgb_full_1_c_template(), yuv2rgb_full_1_template_lasx(), yuv2rgb_full_1_template_lsx(), yuv2rgb_full_2_c_template(), yuv2rgb_full_2_template_lasx(), yuv2rgb_full_2_template_lsx(), yuv2rgb_full_X_c_template(), yuv2rgb_full_X_template_lasx(), yuv2rgb_full_X_template_lsx(), yuv2rgb_X_c_template(), yuv2vyu444_1_c(), yuv2vyu444_2_c(), yuv2vyu444_X_c(), yuv2ya8_1_c(), yuv2ya8_2_c(), and yuv2ya8_X_c().

◆ av_clip_int8

#define av_clip_int8 av_clip_int8_c

Definition at line 109 of file common.h.

Referenced by asv2_put_level(), d3d12va_encode_setup_roi(), decode_filter(), ff_vvc_mv_scale(), get_scale_factor(), implicit_weight_table(), mv_scale(), and vaapi_encode_issue().

◆ av_clip_uint16

#define av_clip_uint16 av_clip_uint16_c

Definition at line 112 of file common.h.

Referenced by dng_process_color16(), ff_dovi_rpu_parse(), ff_sws_tone_map_generate(), filter_frame(), gif_get_delay(), mode06(), mode08(), put_pixel_bayer_lin_curve_12(), rescale_mastering_chroma(), rgb48Toxyz12_c(), round_pt16(), round_unorm16(), vorbis_floor1_decode(), xyz12Torgb48_c(), yuv2ya16_1_c_template(), yuv2ya16_2_c_template(), and yuv2ya16_X_c_template().

◆ av_clip_int16

#define av_clip_int16 av_clip_int16_c

Definition at line 115 of file common.h.

◆ av_clipl_int32

#define av_clipl_int32 av_clipl_int32_c

◆ av_clip_intp2

#define av_clip_intp2 av_clip_intp2_c

◆ av_clip_uintp2

#define av_clip_uintp2 av_clip_uintp2_c

Definition at line 124 of file common.h.

Referenced by abs_get_rice_param(), ac3_bit_alloc_calc_bap_c(), adpcm_mtaf_expand_nibble(), alf_get_idx(), alf_get_idx(), apply_lut(), apply_lut10(), apv_decode_transquant_c(), bit_allocate(), cabac_init_state(), categorize(), categorize_regions(), celt_gauge_psy_weight(), cng_encode_frame(), coded_lossless_param(), colorlevels_preserve_slice_10_planar(), colorlevels_preserve_slice_12_planar(), colorlevels_preserve_slice_14_planar(), colorlevels_preserve_slice_9_planar(), colorlevels_slice_10_planar(), colorlevels_slice_12_planar(), colorlevels_slice_14_planar(), colorlevels_slice_9_planar(), create_chrominance_lut(), create_luma_lut(), d3d12va_encode_av1_configure(), decode_blocks(), decode_frame_header(), dpcm_decode_frame(), encode_yuv422p10(), ff_celt_quant_bands(), ff_hw_base_encode_init_params_h264(), filter_level_for_mb(), filter_slice_rgba_packed(), filter_slice_rgba_planar(), flac_finish_header(), gain_scale(), hqx_idct_put(), if(), init_video_param(), interlaced_vertical_filter(), ivi_decode_blocks(), mp_decode_frame_helper(), mp_decode_line(), mpeg4_encode_mb(), process_alpha(), process_alpha(), process_bayer(), pvq_band_cost(), quantize_and_encode_band_cost_template(), refine_colors(), silk_decode_frame(), silk_decode_lpc(), uncompressed_header(), unpack(), vaapi_vp8_start_frame(), vc1_decode_intra_block(), vp8_get_quants(), yuv2gbrp16_full_X_c(), yuv2gbrp_full_X_c(), yuv2gbrpf32_full_X_c(), yuv2rgb_write_full(), yuv2rgb_write_full(), yuv2rgb_write_full(), yuv2rgba64_1_c_template(), yuv2rgba64_2_c_template(), yuv2rgba64_full_1_c_template(), yuv2rgba64_full_2_c_template(), yuv2rgba64_full_X_c_template(), yuv2rgba64_X_c_template(), and yuv2v30_X_c_template().

◆ av_sat_add32

#define av_sat_add32 av_sat_add32_c

Definition at line 127 of file common.h.

Referenced by av_sat_dadd32_c(), av_sat_dsub32_c(), comp_interp_index(), comp_ppf_gains(), ff_g723_1_dot_product(), and ff_g723_1_gen_acb_excitation().

◆ av_sat_dadd32

#define av_sat_dadd32 av_sat_dadd32_c

Definition at line 130 of file common.h.

Referenced by ff_g723_1_gen_acb_excitation(), formant_postfilter(), gain_scale(), and lsp2lpc().

◆ av_sat_sub32

#define av_sat_sub32 av_sat_sub32_c

Definition at line 133 of file common.h.

Referenced by av_sat_dsub32_c(), and silk_is_lpc_stable().

◆ av_sat_dsub32

#define av_sat_dsub32 av_sat_dsub32_c

Definition at line 136 of file common.h.

◆ av_sat_add64

◆ av_sat_sub64

#define av_sat_sub64 av_sat_sub64_c

Definition at line 142 of file common.h.

Referenced by asf_read_marker(), avformat_find_stream_info(), check_stream_max_drift(), concat_read_header(), discard_samples(), generate_intervals(), get_best_effort_duration(), h264_parse(), mov_build_index(), mov_read_stts(), mxf_edit_unit_absolute_offset(), parse_line(), and theora_packet().

◆ av_clipf

#define av_clipf av_clipf_c

Definition at line 145 of file common.h.

Referenced by aac_encode_frame(), angle_transform(), bit_allocation(), calc_bit_demand(), calc_max_draw(), calc_replaygain(), cas_slice16(), cas_slice8(), comp_adjust(), compute_bilinear_map(), decode(), decode_frame(), decode_frame(), decorrelation(), detect_scene_change(), do_backgroundkey16_slice(), do_backgroundkey_slice(), do_hsvkey_pixel(), draw_legend(), draw_spatial(), encode_init(), encode_init(), evaluate(), fcb_excitation(), ff_affine_transform(), ff_libwebp_encode_init_common(), ff_mpc_dequantize_and_synth(), ff_rate_control_init(), filter(), filter_flt(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_frame(), filter_slice_rgba_packed(), filter_slice_rgba_planar(), filters(), filters(), filters(), filters(), find_hb_gain(), find_motion(), fixed_gain_smooth(), focus_transform(), get_component(), get_lin_bin_abs(), get_lin_bin_sign(), get_log_bin_abs(), get_log_bin_sign(), get_scale(), get_scene_score(), get_scene_score(), get_scene_score(), get_value(), grayf16ToY16_c(), grayf32ToY16_c(), hfun(), init_noise(), libopus_decode(), libx265_encode_set_roi(), lsp_interpolate(), lu_to_y(), nb_decode(), nmr_decide_stereo(), nmr_setup_channel(), nmr_solve_group(), parse_cinespace(), parse_cube(), pitch_filter(), pitch_sharpening(), planar_rgbf16_to_uv(), planar_rgbf16_to_y(), planar_rgbf32_to_uv(), planar_rgbf32_to_y(), plot_spectrum_column(), postscale_c(), pq_eotf(), prelut_interp_1d_linear(), project(), psy_3gpp_analyze_channel(), psy_3gpp_init(), quant_dn(), read_yaf16_alpha_c(), read_yaf16_gray_c(), read_yaf32_alpha_c(), read_yaf32_gray_c(), remap_log(), rgb9plus_planar_funcs(), rgbaf16ToA_endian(), rgbaf16ToUV_endian(), rgbaf16ToUV_half_endian(), rgbaf16ToY_endian(), rgbf16ToUV_endian(), rgbf16ToUV_half_endian(), rgbf16ToY_endian(), rgbf32_to_uv_c(), rgbf32_to_uv_half_c(), rgbf32_to_y_c(), sanitize_values(), saturate(), search_for_pns(), search_for_quantizers_twoloop(), set_brightness(), set_contrast(), set_gamma(), set_saturation(), setup_roi(), shifted_planar_rgb16(), silk_decode_frame(), silk_unmix_ms(), smoothstep(), smoothstepf(), softmax_exp(), spx_coordinates(), st2094_pick_knee(), step_collect_psy_metrics(), stereo_position(), swr_next_pts(), synth_block_fcb_acb(), tone_map_setup(), tonemap(), twinvq_mulawinv(), update_context(), vector_clipf_c(), xfade_frame(), xfade_frame(), xfade_frame(), and xyz_to_mercator().

◆ av_clipd

◆ av_zero_extend

#define av_zero_extend av_zero_extend_c

Definition at line 151 of file common.h.

Referenced by adpcm_ima_wav_expand_nibble(), cclm_select_luma(), chroma_mc_bi(), chroma_mc_uni(), ciip_derive_intra_weight(), decode_frame(), decode_line_TMPL(), decode_qu_spectra(), decode_trns_chunk(), dnxhd_encode_dc(), dv_encode_ac(), encode_dc(), est_alpha_diff(), ff_apv_entropy_decode_block(), ff_h264_execute_ref_pic_marking(), ff_hevc_parse_sps(), ff_hevc_set_neighbour_available(), ff_hevc_split_coding_unit_flag_decode(), ff_opus_rc_get_raw(), ff_opus_rc_put_raw(), ff_rtp_check_and_send_back_rr(), ff_vvc_get_left_available(), ff_vvc_get_top_available(), ff_vvc_set_neighbour_available(), get_left_top(), get_random_number(), h264_field_start(), hls_coding_unit(), intra_pred(), is_a0_available(), luma_intra_pred_mode(), luma_intra_pred_mode(), mc(), mc_bi(), mc_uni(), mtt_split_cu_vertical_flag_decode(), pred_affine_blk(), put_alpha_diff(), put_alpha_diff(), put_sbits(), put_scaled(), put_uni_w_scaled(), quant_band_template(), read_high_coeffs(), read_low_coeffs(), read_scalefactors(), set_sps(), set_ur_golomb(), and speedhq_init_static_data().

◆ av_popcount

#define av_popcount av_popcount_c

◆ av_popcount64

◆ GET_UTF8

#define GET_UTF8	(	val,
		GET_BYTE,
		ERROR )

Value:

    val= (uint8_t)(GET_BYTE);\
    {\
        uint32_t top = (val & 128) >> 1;\
        if ((val & 0xc0) == 0x80 || val >= 0xFE)\
            {ERROR}\
        while (val & top) {\
            unsigned int tmp = (uint8_t)(GET_BYTE) - 128;\
            if(tmp>>6)\
                {ERROR}\
            val= (val<<6) + tmp;\
            top <<= 5;\
        }\
        val &= (top << 1) - 1;\
    }

Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.

Parameters

val	Output value, must be an lvalue of type uint32_t.
GET_BYTE	Expression reading one byte from the input. Evaluated up to 7 times (4 for the currently assigned Unicode range). With a memory buffer input, this could be ptr++, or if you want to make sure that ptr stops at the end of a NULL terminated string then ptr ? ptr++ : 0
ERROR	Expression to be evaluated on invalid input, typically a goto statement.

Warning: ERROR should not contain a loop control statement which could interact with the internal while loop, and should force an exit from the macro code (e.g. through a goto or a return) in order to prevent undefined results.

Definition at line 477 of file common.h.

Referenced by ascii_to_wc(), encode_str8(), get_utf8(), get_utf8_length_at(), measure_text(), mxf_utf16len(), put_str16(), utf8_check(), and utf8len().

◆ GET_UTF16

#define GET_UTF16	(	val,
		GET_16BIT,
		ERROR )

Value:

    val = (uint16_t)(GET_16BIT);\
    {\
        unsigned int hi = val - 0xD800;\
        if (hi < 0x800) {\
            val = (uint16_t)(GET_16BIT) - 0xDC00;\
            if (val > 0x3FFU || hi > 0x3FFU)\
                {ERROR}\
            val += (hi<<10) + 0x10000;\
        }\
    }\

Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.

Parameters

val	Output value, must be an lvalue of type uint32_t.
GET_16BIT	Expression returning two bytes of UTF-16 data converted to native byte order. Evaluated one or two times.
ERROR	Expression to be evaluated on invalid input, typically a goto statement.

Definition at line 502 of file common.h.

Referenced by decode_str(), ff_text_r8(), and get_asf_string().

◆ PUT_UTF8

#define PUT_UTF8	(	val,
		tmp,
		PUT_BYTE )

Value:

    {\
        int bytes, shift;\
        uint32_t in = val;\
        if (in < 0x80) {\
            tmp = in;\
            PUT_BYTE\
        } else {\
            bytes = (av_log2(in) + 4) / 5;\
            shift = (bytes - 1) * 6;\
            tmp = (256 - (256 >> bytes)) | (in >> shift);\
            PUT_BYTE\
            while (shift >= 6) {\
                shift -= 6;\
                tmp = 0x80 | ((in >> shift) & 0x3f);\
                PUT_BYTE\
            }\
        }\
    }

Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).

Parameters

val	is an input-only argument and should be of type uint32_t. It holds a UCS-4 encoded Unicode character that is to be converted to UTF-8. If val is given as a function it is executed only once.
tmp	is a temporary variable and should be of type uint8_t. It represents an intermediate value during conversion that is to be output by PUT_BYTE.
PUT_BYTE	writes the converted UTF-8 bytes to any proper destination. It could be a function or a statement, and uses tmp as the input byte. For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be executed up to 4 times for values in the valid UTF-8 range and up to 7 times in the general case, depending on the length of the converted Unicode character.

Definition at line 530 of file common.h.

Referenced by count_frame_header(), decode_str(), decode_string(), ff_text_r8(), get_asf_string(), mov_read_mac_string(), and write_utf8().

◆ PUT_UTF16

#define PUT_UTF16	(	val,
		tmp,
		PUT_16BIT )

Value:

    {\
        uint32_t in = val;\
        if (in < 0x10000) {\
            tmp = in;\
            PUT_16BIT\
        } else {\
            tmp = 0xD800 | ((in - 0x10000) >> 10);\
            PUT_16BIT\
            tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
            PUT_16BIT\
        }\
    }\

Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).

Parameters

val	is an input-only argument and should be of type uint32_t. It holds a UCS-4 encoded Unicode character that is to be converted to UTF-16. If val is given as a function it is executed only once.
tmp	is a temporary variable and should be of type uint16_t. It represents an intermediate value during conversion that is to be output by PUT_16BIT.
PUT_16BIT	writes the converted UTF-16 data to any proper destination in desired endianness. It could be a function or a statement, and uses tmp as the input byte. For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be executed 1 or 2 times depending on input character.

Definition at line 564 of file common.h.

Referenced by put_str16().

Function Documentation

◆ av_clip_c()

static av_always_inline av_const int av_clip_c	(	int	a,
		int	amin,
		int	amax )

static

Clip a signed integer value into the amin-amax range.

Parameters

a	value to clip
amin	minimum value of the clip range
amax	maximum value of the clip range

Returns: clipped value

Definition at line 178 of file common.h.

◆ av_clip64_c()

static av_always_inline av_const int64_t av_clip64_c	(	int64_t	a,
		int64_t	amin,
		int64_t	amax )

static

Clip a signed 64bit integer value into the amin-amax range.

Parameters

a	value to clip
amin	minimum value of the clip range
amax	maximum value of the clip range

Returns: clipped value

Definition at line 195 of file common.h.

◆ av_clip_uint8_c()

static av_always_inline av_const uint8_t av_clip_uint8_c ( int a )

static

Clip a signed integer value into the 0-255 range.

Parameters

a	value to clip

Returns: clipped value

Definition at line 210 of file common.h.

◆ av_clip_int8_c()

static av_always_inline av_const int8_t av_clip_int8_c ( int a )

static

Clip a signed integer value into the -128,127 range.

Parameters

a	value to clip

Returns: clipped value

Definition at line 221 of file common.h.

◆ av_clip_uint16_c()

static av_always_inline av_const uint16_t av_clip_uint16_c ( int a )

static

Clip a signed integer value into the 0-65535 range.

Parameters

a	value to clip

Returns: clipped value

Definition at line 232 of file common.h.

◆ av_clip_int16_c()

static av_always_inline av_const int16_t av_clip_int16_c ( int a )

static

Clip a signed integer value into the -32768,32767 range.

Parameters

a	value to clip

Returns: clipped value

Definition at line 243 of file common.h.

◆ av_clipl_int32_c()

static av_always_inline av_const int32_t av_clipl_int32_c ( int64_t a )

static

Clip a signed 64-bit integer value into the -2147483648,2147483647 range.

Parameters

a	value to clip

Returns: clipped value

Definition at line 254 of file common.h.

◆ av_clip_intp2_c()

static av_always_inline av_const int av_clip_intp2_c	(	int	a,
		int	p )

static

Clip a signed integer into the -(2^p),(2^p-1) range.

Parameters

a	value to clip
p	bit position to clip at

Returns: clipped value

Definition at line 266 of file common.h.

◆ av_clip_uintp2_c()

static av_always_inline av_const unsigned av_clip_uintp2_c	(	int	a,
		int	p )

static

Clip a signed integer to an unsigned power of two range.

Parameters

a	value to clip
p	bit position to clip at

Returns: clipped value

Definition at line 280 of file common.h.

Referenced by cas_slice16(), color_balance16(), color_balance16_p(), colorcontrast_slice16(), colorcontrast_slice16p(), colorcorrect_slice16(), do_output16(), export_row16(), filter(), filter_frame(), lerp16(), limitdiff16(), monochrome_slice16(), normalize(), parse_band_ext(), postprocess_chroma(), temperature_slice16(), temperature_slice16p(), vibrance_slice16(), vibrance_slice16p(), and write_words().

◆ av_zero_extend_c()

static av_always_inline av_const unsigned av_zero_extend_c	(	unsigned	a,
		unsigned	p )

static

Clear high bits from an unsigned integer starting with specific bit position.

Parameters

a	value to clip
p	bit position to clip at. Must be between 0 and 31.

Returns: clipped value

Definition at line 292 of file common.h.

◆ av_sat_add32_c()

static av_always_inline int av_sat_add32_c	(	int	a,
		int	b )

static

Add two signed 32-bit values with saturation.

Parameters

a	one value
b	another value

Returns: sum with signed saturation

Definition at line 307 of file common.h.

◆ av_sat_dadd32_c()

static av_always_inline int av_sat_dadd32_c	(	int	a,
		int	b )

static

Add a doubled value to another value with saturation at both stages.

Parameters

a	first value
b	value doubled and added to a

Returns: sum sat(a + sat(2*b)) with signed saturation

Definition at line 319 of file common.h.

◆ av_sat_sub32_c()

static av_always_inline int av_sat_sub32_c	(	int	a,
		int	b )

static

Subtract two signed 32-bit values with saturation.

Parameters

a	one value
b	another value

Returns: difference with signed saturation

Definition at line 331 of file common.h.

◆ av_sat_dsub32_c()

static av_always_inline int av_sat_dsub32_c	(	int	a,
		int	b )

static

Subtract a doubled value from another value with saturation at both stages.

Parameters

a	first value
b	value doubled and subtracted from a

Returns: difference sat(a - sat(2*b)) with signed saturation

Definition at line 343 of file common.h.

◆ av_sat_add64_c()

static av_always_inline int64_t av_sat_add64_c	(	int64_t	a,
		int64_t	b )

static

Add two signed 64-bit values with saturation.

Parameters

a	one value
b	another value

Returns: sum with signed saturation

Definition at line 355 of file common.h.

◆ av_sat_sub64_c()

static av_always_inline int64_t av_sat_sub64_c	(	int64_t	a,
		int64_t	b )

static

Subtract two signed 64-bit values with saturation.

Parameters

a	one value
b	another value

Returns: difference with signed saturation

Definition at line 374 of file common.h.

◆ av_clipf_c()

static av_always_inline av_const float av_clipf_c	(	float	a,
		float	amin,
		float	amax )

static

Clip a float value into the amin-amax range.

If a is nan or -inf amin will be returned. If a is +inf amax will be returned.

Parameters

a	value to clip
amin	minimum value of the clip range
amax	maximum value of the clip range

Returns: clipped value

Definition at line 396 of file common.h.

◆ av_clipd_c()

static av_always_inline av_const double av_clipd_c	(	double	a,
		double	amin,
		double	amax )

static

Clip a double value into the amin-amax range.

If a is nan or -inf amin will be returned. If a is +inf amax will be returned.

Parameters

a	value to clip
amin	minimum value of the clip range
amax	maximum value of the clip range

Returns: clipped value

Definition at line 413 of file common.h.

◆ av_ceil_log2_c()

static av_always_inline av_const int av_ceil_log2_c ( int x )

static

Compute ceil(log2(x)).

Parameters

x	value used to compute ceil(log2(x))

Returns: computed ceiling of log2(x)

Definition at line 425 of file common.h.

Referenced by config_input(), config_input(), and hevc_parse_slice_header().

◆ av_popcount_c()

static av_always_inline av_const int av_popcount_c ( uint32_t x )

static

Count number of bits set to one in x.

Parameters

x	value to count bits of

Returns: the number of bits set to one in x

Definition at line 435 of file common.h.

◆ av_popcount64_c()

static av_always_inline av_const int av_popcount64_c ( uint64_t x )

static

Count number of bits set to one in x.

Parameters

x	value to count bits of

Returns: the number of bits set to one in x

Definition at line 449 of file common.h.

◆ av_parity_c()

static av_always_inline av_const int av_parity_c ( uint32_t v )

static

Definition at line 454 of file common.h.

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ RSHIFT

◆ ROUNDED_DIV

◆ AV_CEIL_RSHIFT

◆ FF_CEIL_RSHIFT

◆ FFUDIV

◆ FFUMOD

◆ FFABS

◆ FFSIGN

◆ FFNABS

◆ FFABSU

◆ FFABS64U

◆ av_ceil_log2

◆ av_clip

◆ av_clip64

◆ av_clip_uint8

◆ av_clip_int8

◆ av_clip_uint16

◆ av_clip_int16

◆ av_clipl_int32

◆ av_clip_intp2

◆ av_clip_uintp2

◆ av_sat_add32

◆ av_sat_dadd32

◆ av_sat_sub32

◆ av_sat_dsub32

◆ av_sat_add64

◆ av_sat_sub64

◆ av_clipf

◆ av_clipd

◆ av_zero_extend

◆ av_popcount

◆ av_popcount64

◆ GET_UTF8

◆ GET_UTF16

◆ PUT_UTF8

◆ PUT_UTF16

Function Documentation

◆ av_clip_c()

◆ av_clip64_c()

◆ av_clip_uint8_c()

◆ av_clip_int8_c()

◆ av_clip_uint16_c()

◆ av_clip_int16_c()

◆ av_clipl_int32_c()

◆ av_clip_intp2_c()

◆ av_clip_uintp2_c()

◆ av_zero_extend_c()

◆ av_sat_add32_c()

◆ av_sat_dadd32_c()

◆ av_sat_sub32_c()

◆ av_sat_dsub32_c()

◆ av_sat_add64_c()

◆ av_sat_sub64_c()

◆ av_clipf_c()

◆ av_clipd_c()

◆ av_ceil_log2_c()

◆ av_popcount_c()

◆ av_popcount64_c()

◆ av_parity_c()