#include <stdint.h>#include <math.h>#include "attributes.h"#include "rational.h"#include "intfloat.h"Go to the source code of this file.
Defines | |
| #define | M_E 2.7182818284590452354 |
| #define | M_LN2 0.69314718055994530942 |
| #define | M_LN10 2.30258509299404568402 |
| #define | M_LOG2_10 3.32192809488736234787 |
| #define | M_PHI 1.61803398874989484820 |
| #define | M_PI 3.14159265358979323846 |
| #define | M_SQRT1_2 0.70710678118654752440 |
| #define | M_SQRT2 1.41421356237309504880 |
| #define | NAN av_int2float(0x7fc00000) |
| #define | INFINITY av_int2float(0x7f800000) |
Enumerations | |
| enum | AVRounding { AV_ROUND_ZERO = 0, AV_ROUND_INF = 1, AV_ROUND_DOWN = 2, AV_ROUND_UP = 3, AV_ROUND_NEAR_INF = 5 } |
Functions | |
| int64_t av_const | av_gcd (int64_t a, int64_t b) |
| Return the greatest common divisor of a and b. | |
| int64_t | av_rescale (int64_t a, int64_t b, int64_t c) av_const |
| Rescale a 64-bit integer with rounding to nearest. | |
| int64_t | av_rescale_rnd (int64_t a, int64_t b, int64_t c, enum AVRounding) av_const |
| Rescale a 64-bit integer with specified rounding. | |
| int64_t | av_rescale_q (int64_t a, AVRational bq, AVRational cq) av_const |
| Rescale a 64-bit integer by 2 rational numbers. | |
| int64_t | av_rescale_q_rnd (int64_t a, AVRational bq, AVRational cq, enum AVRounding) av_const |
| Rescale a 64-bit integer by 2 rational numbers with specified rounding. | |
| int | av_compare_ts (int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b) |
| Compare 2 timestamps each in its own timebases. | |
| int64_t | av_compare_mod (uint64_t a, uint64_t b, uint64_t mod) |
| Compare 2 integers modulo mod. | |
| #define INFINITY av_int2float(0x7f800000) |
Definition at line 58 of file mathematics.h.
Referenced by av_dbl2ext(), avpriv_strtod(), codebook_trellis_rate(), encode_window_bands_info(), get_exponent_dynamic(), parse_option(), quantize_and_encode_band(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_faac(), and search_for_quantizers_twoloop().
| #define M_E 2.7182818284590452354 |
| #define M_LN10 2.30258509299404568402 |
Definition at line 37 of file mathematics.h.
Referenced by acelp_decode_gain_codef(), calc_input_response(), decode_frame(), ff_acelp_decode_gain_code(), and ff_sipr_decode_frame_16k().
| #define M_LN2 0.69314718055994530942 |
Definition at line 34 of file mathematics.h.
Referenced by decode_frame(), encode_block(), encode_init(), and ff_sipr_decode_frame_16k().
| #define M_LOG2_10 3.32192809488736234787 |
| #define M_PHI 1.61803398874989484820 |
| #define M_PI 3.14159265358979323846 |
Definition at line 46 of file mathematics.h.
Referenced by audio_encode_example(), audiogen(), binkb_calc_quant(), biquad_init_coeffs(), block_angle(), build_basis(), build_filter(), butterworth_init_coeffs(), calc_input_response(), config(), config_output(), dct_ref(), decode_init(), decode_init_static(), dequant_lsp10i(), dequant_lsp10r(), dequant_lsp16i(), dequant_lsp16r(), eval_expr(), ff_acelp_lsf2lspd(), ff_adx_calculate_coeffs(), ff_dct_init(), ff_init_ff_cos_tabs(), ff_init_mpadsp_tabs_TMPL(), ff_kbd_window_init(), ff_mdct_init(), ff_rdft_init(), ff_ref_dct_init(), ff_sine_window_init(), ff_sipr_init_16k(), ff_timefilter_new(), fft_ref_init(), get_qscale(), idct248_ref(), idct_ref(), imc_decode_init(), imdct_ref(), init_atrac3_transforms(), init_idct(), init_mdct_win(), initFilter(), lsf_decode_fp(), lspf2lpc(), main(), make_filters_from_proto(), mdct_ref(), open_audio(), ps_tableinit(), put_image(), qdm2_fft_generate_tone(), qdm2_fft_tone_synthesizer(), set_options(), sipr_decoder_init(), stabilize_lsps(), start_frame(), sws_getGaussianVec(), vorbis_floor0_decode(), wavesynth_init(), wma_lsp_to_curve_init(), wmavoice_decode_init(), wmavoice_flush(), and yae_reset().
| #define M_SQRT1_2 0.70710678118654752440 |
Definition at line 49 of file mathematics.h.
Referenced by auto_matrix(), avresample_build_matrix(), dca_decode_frame(), dca_filter_channels(), nelly_decode_block(), and ps_tableinit().
| #define M_SQRT2 1.41421356237309504880 |
Definition at line 52 of file mathematics.h.
Referenced by avresample_build_matrix(), ff_adx_calculate_coeffs(), ff_timefilter_new(), and ps_tableinit().
| #define NAN av_int2float(0x7fc00000) |
Definition at line 55 of file mathematics.h.
Referenced by av_expr_parse_and_eval(), av_ext2dbl(), av_get_double(), av_int2dbl(), av_int2flt(), avpriv_strtod(), config_input(), config_props(), end_frame(), eval_expr(), filter_frame(), init(), psy_3gpp_analyze_channel(), select_frame(), and start_frame().
1.5.8