Struct TranscodeGraph 

pub struct TranscodeGraph { /* private fields */ }

A directed acyclic graph of pipeline stages for a transcode job.

Implementations

impl TranscodeGraph

pub fn new() -> Self

Create a new empty pipeline graph.

pub fn add_stage(&mut self, stage: GraphStage) -> u32

Add a stage to the graph and return its assigned id.

pub fn connect(&mut self, from_id: u32, to_id: u32) -> bool

Connect two stages by their ids. Returns false if either id is unknown.

pub fn stage_count(&self) -> usize

Return the total number of stages in the graph.

pub fn active_stage_count(&self) -> usize

Return the number of active (enabled) stages.

pub fn has_transcode_stage(&self) -> bool

Return true if the graph contains at least one transcode-class stage.

pub fn is_fully_passthrough(&self) -> bool

Return true if every enabled stage is a passthrough or analyse stage.

pub fn total_cost(&self) -> u32

Estimate total processing cost by summing all enabled stage costs.

pub fn stage_labels(&self) -> Vec<&str>

Return a list of stage labels in insertion order.

pub fn find_stage(&self, id: u32) -> Option<&GraphStage>

Find a stage by id.

pub fn remove_stage(&mut self, id: u32) -> bool

Remove a stage by id. Also removes associated edges.

Trait Implementations

impl Clone for TranscodeGraph

fn clone(&self) -> TranscodeGraph

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TranscodeGraph

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

Formats the value using the given formatter.

impl Default for TranscodeGraph

fn default() -> TranscodeGraph

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TranscodeGraph

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TranscodeGraph

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

where __S: Serializer,

Serialize this value into the given Serde serializer.