mpg123_parms

< set verbosity value for enabling messages to stderr, >= 0 makes sense (integer)

< set all flags, p.ex val = MPG123_GAPLESS|MPG123_MONO_MIX (integer)

< add some flags (integer)

< when value > 0, force output rate to that value (integer)

< 0=native rate, 1=half rate, 2=quarter rate (integer)

< one of the RVA choices above (integer)

< play a frame N times (integer)

< play every Nth frame (integer)

< start with this frame (skip frames before that, integer)

< decode only this number of frames (integer)

< stream contains ICY metadata with this interval (integer)

< the scale for output samples (amplitude - integer or float according to mpg123 output format, normally integer)

< timeout for reading from a stream (not supported on win32, integer)

< remove some flags (inverse of MPG123_ADD_FLAGS, integer)

< Try resync on frame parsing for that many bytes or until end of stream (<0 ... integer). This can enlarge the limit for skipping junk on beginning, too (but not reduce it).