Struct MediaFingerprint 

pub struct MediaFingerprint {
    pub content_sha256: Option<String>,
    pub byte_length: Option<u64>,
    pub modified_ms: Option<i64>,
    pub streams: Option<StreamTopology>,
    pub duration_ticks: Option<i64>,
    pub color: Option<ColorMetadata>,
}

Evidence of a source’s media, each part recorded only when it was known.

A matching content hash proves the same bytes. Without one, the other parts can only show a difference. modified_ms narrows a search for candidates and never decides whether a candidate is the same media.

Fields

content_sha256: Option<String>

SHA-256 of the whole file, as 64 lowercase hexadecimal digits.

byte_length: Option<u64>

The file’s length in bytes.

modified_ms: Option<i64>

The file’s modification time, in milliseconds since the Unix epoch.

streams: Option<StreamTopology>

The streams the file carries.

duration_ticks: Option<i64>

Where the media ends on its own timeline, in ticks: its first presentation plus its length, the end of any source range that reads it. A transport stream that starts at 1.4 s and lasts 2 s ends at 3.4 s. Non-negative.

color: Option<ColorMetadata>

The color the decoded pictures carry.

Implementations

impl MediaFingerprint

pub fn is_valid(&self) -> bool

Whether every recorded part is well formed.

pub fn malformed_part(&self) -> Option<&'static str>

The first recorded part that is not well formed, by its field name: a hash that is not 64 lowercase hexadecimal digits, a negative duration, a stream without size, channels or rate, or a color whose dynamic range contradicts its transfer.

Trait Implementations

impl Clone for MediaFingerprint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MediaFingerprint

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

Formats the value using the given formatter.

impl Default for MediaFingerprint

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MediaFingerprint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MediaFingerprint

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MediaFingerprint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MediaFingerprint