static struct ResampleContext *create(struct ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, double kaiser_beta, double precision, int cheby, int exact_rational){ soxr_error_t error; soxr_datatype_t type = format == AV_SAMPLE_FMT_S16P? SOXR_INT16_S : format == AV_SAMPLE_FMT_S16 ? SOXR_INT16_I : format == AV_SAMPLE_FMT_S32P? SOXR_INT32_S : format == AV_SAMPLE_FMT_S32 ? SOXR_INT32_I : format == AV_SAMPLE_FMT_FLTP? SOXR_FLOAT32_S : format == AV_SAMPLE_FMT_FLT ? SOXR_FLOAT32_I : format == AV_SAMPLE_FMT_DBLP? SOXR_FLOAT64_S : format == AV_SAMPLE_FMT_DBL ? SOXR_FLOAT64_I : (soxr_datatype_t)-1; soxr_io_spec_t io_spec = soxr_io_spec(type, type); soxr_quality_spec_t q_spec = soxr_quality_spec((int)((precision-2)/4), (SOXR_HI_PREC_CLOCK|SOXR_ROLLOFF_NONE)*!!cheby); q_spec.precision = linear? 0 : precision; #if !defined SOXR_VERSION /* Deprecated @ March 2013: */ q_spec.bw_pc = cutoff? FFMAX(FFMIN(cutoff,.995),.8)*100 : q_spec.bw_pc; #else q_spec.passband_end = cutoff? FFMAX(FFMIN(cutoff,.995),.8) : q_spec.passband_end; #endif soxr_delete((soxr_t)c); c = (struct ResampleContext *) soxr_create(in_rate, out_rate, 0, &error, &io_spec, &q_spec, 0); if (!c) av_log(NULL, AV_LOG_ERROR, "soxr_create: %s\n", error); return c; }