audio_format2_endian
is_src_NE = (audio_format2_endian(arg->srcfmt) == BYTE_ORDER);
is_dst_NE = (audio_format2_endian(arg->dstfmt) == BYTE_ORDER);
is_src_LE = (audio_format2_endian(arg->srcfmt) == LITTLE_ENDIAN);
is_dst_LE = (audio_format2_endian(arg->dstfmt) == LITTLE_ENDIAN);
is_src_NE = (audio_format2_endian(arg->srcfmt) == BYTE_ORDER);
is_dst_NE = (audio_format2_endian(arg->dstfmt) == BYTE_ORDER);