Enum retina::client::InitialSequenceNumberPolicy

#[non_exhaustive]
pub enum InitialSequenceNumberPolicy {
    Default,
    Respect,
    IgnoreSuspiciousValues,
    Ignore,
}

Policy for handling the seq parameter normally seen in the RTP-Info header.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Default

Default policy: currently same as IgnoreSuspiciousValues.

Respect

Always respect the value in the header if present.

IgnoreSuspiciousValues

Ignore 0 and 1 values, which we consider “suspicious”.

Some cameras appear to send these fixed values then a completely different sequence number in the first RTP packet.

• The Hikvision DS-2CD2032-I appears to always send seq=0 on its metadata stream.
• The Tapo C320WS appears to always send seq=1 in all streams.

Ignore

Always ignore, starting the sequence number from observed RTP packets.

Trait Implementations

impl Clone for InitialSequenceNumberPolicy

fn clone(&self) -> InitialSequenceNumberPolicy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for InitialSequenceNumberPolicy

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

Formats the value using the given formatter.

impl Default for InitialSequenceNumberPolicy

fn default() -> InitialSequenceNumberPolicy

Returns the “default value” for a type.

impl Display for InitialSequenceNumberPolicy

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

Formats the value using the given formatter.

impl FromStr for InitialSequenceNumberPolicy

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Copy for InitialSequenceNumberPolicy