pub struct EncryptedFormat {
    pub init_vector: Option<Vec<u8>>,
    pub subsamples: Option<Vec<SubsampleEntry>>,
    pub pattern: Option<EncryptionPattern>,
    pub scheme: Option<String>,
    pub key_id: Option<Vec<u8>>,
    /* private fields */
}
Expand description

EncryptedFormat

The stream format details payload of a decrypting stream processor. This is a sparsely populated table to specify parameters necessary for decryption other than the data stream. It is only necessary to update fields if they changed, but not an error if the same value is repeated.

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§init_vector: Option<Vec<u8>>

init_vector is used in combination with a key and a block of content to create the first cipher block in a chain and derive subsequent cipher blocks in a cipher block chain. Usage:

  • It is required to be set prior to the delivery of input packets to a decryptor.
  • This may be changed multiple times during a data stream.
§subsamples: Option<Vec<SubsampleEntry>>

subsamples is used to identify the clear and encrypted portions of a subsample. Usage:

  • For whole sample encryption, this parameter should not be sent.
  • This may be changed multiple times during a data stream.
§pattern: Option<EncryptionPattern>

pattern is used to identify the clear and encrypted blocks for pattern based encryption. Usage:

  • This is not allowed for CENC and CBC1 and required for CENS and CBCS.
  • If required, it must be set prior to the delivery of input packets to a decryptor.
  • This may be changed multiple times during a data stream.
§scheme: Option<String>

scheme specifies which encryption scheme to use, such as fuchsia.media.ENCRYPTION_SCHEME_CENC. Usage:

  • It is required to be set prior to delivery of input packets.
  • Changing the scheme mid-stream is only permitted in some scenarios. Once an encrypted scheme is selected for a stream, the scheme may only be set to fuchsia.media.ENCRYPTION_SCHEME_UNENCRYPTED or that same initial encrypted scheme. The scheme may be set to fuchsia.media.ENCRYPTION_SCHEME_UNENCRYPTED at any point.
§key_id: Option<Vec<u8>>

key_id identifies the key that should be used for decrypting subsequent data. Usage:

  • It is required to be set prior to delivery of input packets to a decryptor.
  • This may be changed multiple times during a data stream.

Trait Implementations§

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impl Clone for EncryptedFormat

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fn clone(&self) -> EncryptedFormat

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for EncryptedFormat

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

Formats the value using the given formatter. Read more
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impl Decode<EncryptedFormat> for EncryptedFormat

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fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.
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unsafe fn decode( &mut self, decoder: &mut Decoder<'_>, offset: usize, depth: Depth ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self. Read more
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impl Default for EncryptedFormat

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fn default() -> EncryptedFormat

Returns the “default value” for a type. Read more
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impl Encode<EncryptedFormat> for &EncryptedFormat

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unsafe fn encode( self, encoder: &mut Encoder<'_>, offset: usize, depth: Depth ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl PartialEq for EncryptedFormat

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TypeMarker for EncryptedFormat

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type Owned = EncryptedFormat

The owned Rust type which this FIDL type decodes into.
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fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.
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fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.
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fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy. Read more
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fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.
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impl ValueTypeMarker for EncryptedFormat

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type Borrowed<'a> = &'a EncryptedFormat

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases: Read more
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fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

Cheaply converts from &Self::Owned to Self::Borrowed.
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impl Persistable for EncryptedFormat

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impl StructuralPartialEq for EncryptedFormat

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Body for T
where T: Persistable,

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type MarkerAtTopLevel = T

The marker type to use when the body is at the top-level.
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type MarkerInResultUnion = T

The marker type to use when the body is nested in a result union.
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Encode<Ambiguous1> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _offset: usize, _depth: Depth ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T> Encode<Ambiguous2> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _offset: usize, _depth: Depth ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<E> ErrorType for E
where E: ValueTypeMarker<Owned = E> + Decode<E>,

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type Marker = E

The marker type.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more