FFMPEG-RESAMPLER(1) (NAME) ffmpeg-resampler - FFmpeg (DESCRIPTION) FFmpeg (FFmpeg resampler) libswresample . (rematrixing) . (RESAMPLER OPTIONS) . -option value FFmpeg option=value aresample "SwrContext" libavutil/opt.h . uchl, used_chlayout . . . isr, in_sample_rate . 0 . osr, out_sample_rate . 0 . isf, in_sample_fmt . "none" . osf, out_sample_fmt . "none" . tsf, internal_sample_fmt . "none" . . ichl, in_chlayout ochl, out_chlayout /. Channel Layout ffmpeg-utils(1) . clev, center_mix_level (center mix level). [-32,32] . slev, surround_mix_level (surround mix level). [-32,32] . lfe_mix_level LFE LFE. LFE LFE . [-32,32] . rmvol, rematrix_volume (rematrix volume). 1.0 . rematrix_maxval . (clipping) . 1.0 . flags, swr_flags . 0 . : res . dither_scale (dither scale). 1 . dither_method (dither method). 0 . : rectangular (rectangular) triangular (triangular) triangular_hp (high pass) lipshitz (Lipshitz noise shaping) shibata (Shibata noise shaping) low_shibata high_shibata f_weighted f modified_e_weighted e improved_e_weighted e resampler . swr . : swr SW Resampler precision cheby . soxr SoX Resampler ( ) filter_size phase_shift exact_rational filter_type kaiser_beta . filter_size swr 32 . phase_shift swr 10 [0,30] . linear_interp (). exact_rational . exact_rational swr phase_count . "1 << phase_shift" phase_count "1 << phase_shift" . . cutoff (swr: 6dB soxr: 0dB) 0 1 . swr 0.97 soxr 0.91 ( 44100 20 ). precision soxr . 20 ( 16 ) High Quality SoX 28 Very High Quality SoX . cheby soxr () . 0 . async swr . 1 . 0 . first_pts swr pts . 1 / . / . pts . 0 pts . min_comp swr ( ) // . // (min_comp = "FLT_MAX"). min_hard_comp swr ( ) / . (/ ) (/) . min_comp . 0.1 . comp_duration swr ( ) / . 1.0 . max_soft_comp swr / . 0 . matrix_encoding . : none dolby Dolby dplii Dolby Pro Logic II "none" . filter_type swr . . : cubic (cubic) blackman_nuttall sinc kaiser sinc kaiser_beta swr . [2,16] 9 . output_sample_bits swr . [0,64] 0 . (SEE ALSO) ffmpeg(1), ffplay(1), ffprobe(1), libswresample(3) (AUTHORS) FFmpeg. (https://git.ffmpeg.org/ffmpeg) git log FFmpeg . MAINTAINERS . FFmpeg FFMPEG-RESAMPLER(1)