Struct fidl_fuchsia_mediacodec::DetailedCodecDescription

pub struct DetailedCodecDescription {
    pub codec_type: Option<CodecType>,
    pub mime_type: Option<String>,
    pub is_hw: Option<bool>,
    pub profile_descriptions: Option<ProfileDescriptions>,
    /* private fields */
}

Clients needing codec information prior to just requesting a codec with CodecFactory.CreateDecoder or CodecFactory.CreateEncoder should use GetDetailedCodecDescriptions to get this table, which has details re. the codec and the profile entries supported by the codec.

Clients with no real need for codec information prior to requesting a codec can simply use CodecFactory.CreateDecoder or CodecFactory.CreateEncoder with relevant requirements set in that request, and then call StreamProcessor.Sync (round trip) to see if a codec was created successfully.

Fields

codec_type: Option<CodecType>

Decoder or encoder.

mime_type: Option<String>

The mime type of the compressed format. For decoders this is the mime type of the input. For encoders, this is the mime type of the output.

is_hw: Option<bool>

If this decoder/encoder uses underlying hardware to perform its operations.

profile_descriptions: Option<ProfileDescriptions>

A list of profile descriptions that describe what codec profiles this encoder/decoder supports along with requirements for using each profile.

Trait Implementations

impl Clone for DetailedCodecDescription

fn clone(&self) -> DetailedCodecDescription

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DetailedCodecDescription

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

Formats the value using the given formatter.

impl Decode<DetailedCodecDescription> for DetailedCodecDescription

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

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.

impl Default for DetailedCodecDescription

fn default() -> DetailedCodecDescription

Returns the “default value” for a type.

impl Encode<DetailedCodecDescription> for &DetailedCodecDescription

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.

impl PartialEq for DetailedCodecDescription

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

This method tests for self and other values to be equal, and is used by ==.

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.

impl TypeMarker for DetailedCodecDescription

type Owned = DetailedCodecDescription

The owned Rust type which this FIDL type decodes into.

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.

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.

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.

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.

impl ValueTypeMarker for DetailedCodecDescription

type Borrowed<'a> = &'a DetailedCodecDescription

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Persistable for DetailedCodecDescription

impl StructuralPartialEq for DetailedCodecDescription