Struct MarkersFile 

pub struct MarkersFile {
    pub header: [u8; 21],
    pub datatype_version: u8,
    pub flex_slots: Box<Array<SlotMarkers, 136>>,
    pub static_slots: Box<Array<SlotMarkers, 128>>,
    pub checksum: u16,
}

The ‘markers’ file. Contains sample editor data for all slots in a project.

Fields

header: [u8; 21]

datatype_version: u8

version of data file. used in OS upgrades for patching files (and checks performed on files during loading of a project).

background / context

Got this error on the device when i messed up the default markers file when i didn’t include the 4 (current value for 1.40B).

>>> 2025-04-24 22:06:00 ERROR Couldn't read from markers file ...
>>> '/test-set-bankcopy/PROJECT-BLANK/markers.work' ('INVALID FILESIZE')

Additionally, Banks for projects created with 1.40X have a ‘version’ number of 23, while the LESSSELF/V1 project started with 1.25E has a version of 15.

So yep. These weird numbers are version numbers for the data types / structures / files.

flex_slots: Box<Array<SlotMarkers, 136>>

flex slots playback data

static_slots: Box<Array<SlotMarkers, 128>>

static slots playback data

checksum: u16

Trait Implementations

impl CheckFileIntegrity for MarkersFile

fn check_integrity(&self) -> Result<bool, OtToolsIoError>

impl Clone for MarkersFile

fn clone(&self) -> MarkersFile

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MarkersFile

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MarkersFile

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MarkersFile

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl HasChecksumField for MarkersFile

fn calculate_checksum(&self) -> Result<u16, OtToolsIoError>

Method for calculating the checksum value for types that have a checksum field

fn check_checksum(&self) -> Result<bool, OtToolsIoError>

Method to verify if checksum is valid in some data type. See this thread.

impl HasFileVersionField for MarkersFile

fn check_file_version(&self) -> Result<bool, OtToolsIoError>

Method to verify if the data file version field is valid for the given type.

impl HasHeaderField for MarkersFile

fn check_header(&self) -> Result<bool, OtToolsIoError>

Method to verify if header(s) are valid in some data. See this thread.

impl IsDefault for MarkersFile

fn is_default(&self) -> bool

where Self: Default + PartialEq,

impl OctatrackFileIO for MarkersFile

fn encode(&self) -> Result<Vec<u8>, OtToolsIoError>

where Self: Serialize,

Adds serialization via bincode and serde to a type. Must be present on all major file types.

fn decode(bytes: &[u8]) -> Result<Self, OtToolsIoError>

where Self: Sized + for<'a> Deserialize<'a>,

Deserialization via bincode and serde.

fn repr(&self, newlines: Option<bool>)

where Self: Debug,

Read type from an Octatrack data file at path

fn from_data_file(path: &Path) -> Result<Self, OtToolsIoError>

Read type from an Octatrack data file at path

fn from_bytes(bytes: &[u8]) -> Result<Self, OtToolsIoError>

Read type from bytes

fn to_data_file(&self, path: &Path) -> Result<(), OtToolsIoError>

Write type to an Octatrack data file at path

fn to_bytes(&self) -> Result<Vec<u8>, OtToolsIoError>

Create bytes from type

fn from_yaml_file(path: &Path) -> Result<Self, OtToolsIoError>

Read type from a YAML file at path

fn from_yaml_str(yaml: &str) -> Result<Self, OtToolsIoError>

Read type from YAML string

fn to_yaml_file(&self, path: &Path) -> Result<(), OtToolsIoError>

Write type to a YAML file at path

fn to_yaml_string(&self) -> Result<String, OtToolsIoError>

Create YAML string from type

fn from_json_file(path: &Path) -> Result<Self, OtToolsIoError>

Read type from a JSON file at path

fn from_json_str(json: &str) -> Result<Self, OtToolsIoError>

Create type from JSON string

fn to_json_file(&self, path: &Path) -> Result<(), OtToolsIoError>

Write type to a JSON file at path

fn to_json_string(&self) -> Result<String, OtToolsIoError>

Create JSON string from type

impl PartialEq for MarkersFile

fn eq(&self, other: &MarkersFile) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for MarkersFile

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for MarkersFile

impl StructuralPartialEq for MarkersFile