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Data Structures | |
| struct | AVLFG |
Functions | |
| void | av_lfg_init (AVLFG *c, unsigned int seed) |
| static unsigned int | av_lfg_get (AVLFG *c) |
| Get the next random unsigned 32-bit number using an ALFG. | |
| static unsigned int | av_mlfg_get (AVLFG *c) |
| Get the next random unsigned 32-bit number using a MLFG. | |
| void | av_bmg_get (AVLFG *lfg, double out[2]) |
| Get the next two numbers generated by a Box-Muller Gaussian generator using the random numbers issued by lfg. | |
| void av_bmg_get | ( | AVLFG * | lfg, | |
| double | out[2] | |||
| ) |
| static unsigned int av_lfg_get | ( | AVLFG * | c | ) | [inline, static] |
Get the next random unsigned 32-bit number using an ALFG.
Please also consider a simple LCG like state= state*1664525+1013904223, it may be good enough and faster for your specific use case.
Definition at line 38 of file lfg.h.
Referenced by ac3_decode_transform_coeffs_ch(), av_bmg_get(), dct_error(), ff_eac3_apply_spectral_extension(), ff_eac3_decode_transform_coeffs_aht_ch(), fill_random(), frandom(), get_high_utility_cell(), http_parse_request(), idct248_error(), idx_to_quant(), main(), mkv_write_header(), mpc8_decode_frame(), nelly_decode_block(), rtmp_handshake(), rtsp_cmd_setup(), scalar_dequant_float(), scaled_hb_excitation(), and start_multicast().
| void av_lfg_init | ( | AVLFG * | c, | |
| unsigned int | seed | |||
| ) |
Definition at line 30 of file lfg.c.
Referenced by a64multi_init_encoder(), ac3_decode_init(), amrwb_decode_init(), cook_decode_init(), dct_error(), decode_init(), encode_init(), fill_random(), idct248_error(), main(), mkv_write_header(), mpc7_decode_init(), mpc8_decode_init(), roq_encode_init(), and rtmp_handshake().
| static unsigned int av_mlfg_get | ( | AVLFG * | c | ) | [inline, static] |
Get the next random unsigned 32-bit number using a MLFG.
Please also consider av_lfg_get() above, it is faster.
1.5.8