audio_diagnostic_format2
audio_diagnostic_format2(where, arg->srcfmt);
audio_diagnostic_format2(where, arg->dstfmt);
audio_diagnostic_format2(where, &ring->fmt);
#define DIAGNOSTIC_format2(fmt) audio_diagnostic_format2(__func__, (fmt))
extern void audio_diagnostic_format2(const char *, const audio_format2_t *);