Enum Codec 

pub enum Codec {
    H264,
    H265,
    Mjpeg,
}

Which elementary stream the input carries.

Seyd never decodes video, so this exists for exactly two reasons: to find frame boundaries in an RTP stream, and to know which frames are keyframes. Everything downstream — chunking, FEC, transport, pacing — is bytes.

Variants

H264

H265

Mjpeg

Motion JPEG: a sequence of complete JPEG images, one per frame.

The only codec ONVIF Profile S makes mandatory, so every conformant camera can emit it while none is obliged to emit H.265 — which makes it the compatibility path, not a preference. It costs roughly an order of magnitude more bandwidth than H.264.

Implementations

impl Codec

pub fn from_codec_string(s: &str) -> Result<Self>

From the channel’s codec string, which is a WebCodecs identifier (avc1.42001f, hev1.1.6.L93.B0) because it also travels to the browser’s decoder untouched. Bare h264 / h265 are accepted too.

pub fn rtp_encoding_name(self) -> &'static str

The RTP encoding_name an RTSP server advertises for this codec.

Trait Implementations

impl Clone for Codec

fn clone(&self) -> Codec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Codec

impl Debug for Codec

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

Formats the value using the given formatter.

impl Default for Codec

fn default() -> Codec

Returns the “default value” for a type.

impl Eq for Codec

impl PartialEq for Codec

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Codec