Enum DataType 

#[repr(u32)]
pub enum DataType {
    Reserved = 0,
    Utf8 = 1,
    Utf16 = 2,
    SJis = 3,
    Utf8Sort = 4,
    Utf16Sort = 5,
    Gif = 12,
    Jpeg = 13,
    Png = 14,
    BeSignedInteger = 21,
    BeUnsignedInteger = 22,
    BeFloat32 = 23,
    BeFloat64 = 24,
    Bmp = 27,
    QuicktimeMetadata = 28,
    Signed8BitInteger = 65,
    Be16BitSignedInteger = 66,
    Be32BitSignedInteger = 67,
    BePointF32 = 70,
    BeDimensionsF32 = 71,
    BeRectF32 = 72,
    Be64BitSignedInteger = 74,
    Unsigned8BitInteger = 75,
    Be16BitUnsignedInteger = 76,
    Be32BitUnsignedInteger = 77,
    Be64BitUnsignedInteger = 78,
    AffineTransformF64 = 79,
    Other(u32),
}

The well known basic data types

This should cover all the data types you’ll encounter in an MP4 file.

Variants

Reserved = 0

Reserved for use where no type needs to be indicated

Utf8 = 1

UTF-8 string without any count or NULL terminator

Utf16 = 2

A big-endian UTF-16 string

SJis = 3

Deprecated unless it is needed for special Japanese characters

Utf8Sort = 4

The UTF-8 variant storage of a string for sorting only

Utf16Sort = 5

The UTF-16 variant storage of a string for sorting only

Gif = 12

DEPRECATED A GIF image

Jpeg = 13

A JPEG in a JFIF wrapper

Png = 14

A PNG in a PNG wrapper

BeSignedInteger = 21

A big-endian signed integer in 1,2,3 or 4 bytes

BeUnsignedInteger = 22

A big-endian unsigned integer in 1,2,3 or 4 bytes; size of value determines integer size

BeFloat32 = 23

A big-endian 32-bit floating point value (IEEE754)

BeFloat64 = 24

A big-endian 64-bit floating point value (IEEE754)

Bmp = 27

Windows bitmap format graphics

QuicktimeMetadata = 28

A QuickTime metadata atom

Signed8BitInteger = 65

An 8-bit signed integer

Be16BitSignedInteger = 66

A big-endian 16-bit signed integer

Be32BitSignedInteger = 67

A big-endian 32-bit signed integer

BePointF32 = 70

A block of data representing a two dimensional (2D) point with 32-bit big-endian floating point x and y coordinates. It has the structure:

struct {
    BEFloat32 x;
    BEFloat32 y;
}

BeDimensionsF32 = 71

A block of data representing 2D dimensions with 32-bit big-endian floating point width and height. It has the structure:

struct {
    BEFloat32 width;
    BEFloat32 height;
}

BeRectF32 = 72

A block of data representing a 2D rectangle with 32-bit big-endian floating point x and y coordinates and a 32-bit big-endian floating point width and height size. It has the structure:

struct {
    BEFloat32 x;
    BEFloat32 y;
    BEFloat32 width;
    BEFloat32 height;
}

or the equivalent structure:

struct {
    PointF32 origin;
    DimensionsF32 size;
}

Be64BitSignedInteger = 74

A big-endian 64-bit signed integer

Unsigned8BitInteger = 75

An 8-bit unsigned integer

Be16BitUnsignedInteger = 76

A big-endian 16-bit unsigned integer

Be32BitUnsignedInteger = 77

A big-endian 32-bit unsigned integer

Be64BitUnsignedInteger = 78

A big-endian 64-bit unsigned integer

AffineTransformF64 = 79

A block of data representing a 3x3 transformation matrix. It has the structure:

struct {
   BEFloat64 matrix[3][3];
}

Other(u32)

Some other data type

Implementations

impl DataType

pub const MAX: u32 = 16_777_215

A data type can only occupy 24 bits

Trait Implementations

impl Clone for DataType

fn clone(&self) -> DataType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataType

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

Formats the value using the given formatter.

impl From<&MimeType> for DataType

fn from(value: &MimeType) -> Self

Converts to this type from the input type.

impl From<DataType> for u32

fn from(value: DataType) -> Self

Converts to this type from the input type.

impl From<MimeType> for DataType

fn from(value: MimeType) -> Self

Converts to this type from the input type.

impl From<u32> for DataType

fn from(value: u32) -> Self

Converts to this type from the input type.

impl Hash for DataType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for DataType

fn cmp(&self, other: &DataType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DataType

fn eq(&self, other: &DataType) -> 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 PartialOrd for DataType

fn partial_cmp(&self, other: &DataType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for DataType

impl Eq for DataType

impl StructuralPartialEq for DataType