pub struct Session<S: State>(/* private fields */);
Expand description
An RTSP session.
The expected lifecycle is as follows:
- Create a session via
Session::describe
. - Examine the session’s available streams via
Session::streams
and set up one or more viaSession::setup
. - Start playing via
Session::play
. - Get packets via the
futures::stream::Stream
impl onSession<Playing>
, or frames via thefutures::stream::Stream
impl returned bySession<Playing>::demuxed
. - Drop the session. Retina may issue a
TEARDOWN
in the background, depending on theSessionOptions::teardown
parameter. - Possibly wait for
TEARDOWN
to complete; seeSessionOptions::session_group
andSessionGroup::await_teardown
.
§tokio runtime
All Session
operations are currently expected to be performed from
“within” a tokio runtime with both time and I/O resource drivers enabled.
Operations may panic or fail otherwise.
Implementations§
source§impl Session<Described>
impl Session<Described>
sourcepub async fn describe(url: Url, options: SessionOptions) -> Result<Self, Error>
pub async fn describe(url: Url, options: SessionOptions) -> Result<Self, Error>
Creates a new session from a DESCRIBE
request on the given URL.
This method is permissive; it will return success even if there are
errors in the SDP that would prevent one or more streams from being
depacketized correctly. If those streams are setup via
Session<Described>::setup
, the erorrs in question will be ultimately
returned from Stream<Playing>::demuxed
.
Expects to be called from a tokio runtime.
sourcepub fn sdp(&self) -> &[u8] ⓘ
pub fn sdp(&self) -> &[u8] ⓘ
Returns the raw SDP (Session Description Protocol) session description of this URL.
Retina interprets the SDP automatically, but the raw bytes may be useful for debugging.
They’re accessibled in the Session<Described>
state. Currently, they’re discarded on
play
to reduce memory usage.
sourcepub async fn setup(
&mut self,
stream_i: usize,
options: SetupOptions,
) -> Result<(), Error>
pub async fn setup( &mut self, stream_i: usize, options: SetupOptions, ) -> Result<(), Error>
Sends a SETUP
request for a stream.
Note these can’t reasonably be pipelined because subsequent requests
are expected to adopt the previous response’s Session
. Likewise,
the server may override the preferred interleaved channel id and it
seems like a bad idea to try to assign more interleaved channels without
inspect that first.
Panics if stream_i >= self.streams().len()
.
sourcepub async fn play(self, policy: PlayOptions) -> Result<Session<Playing>, Error>
pub async fn play(self, policy: PlayOptions) -> Result<Session<Playing>, Error>
Sends a PLAY
request for the entire presentation.
The presentation must support aggregate control, as defined in RFC 2326 section 1.3.
Auto Trait Implementations§
impl<S> Freeze for Session<S>where
S: Freeze,
impl<S> !RefUnwindSafe for Session<S>
impl<S> Send for Session<S>where
S: Send,
impl<S> Sync for Session<S>where
S: Sync,
impl<S> Unpin for Session<S>where
S: Unpin,
impl<S> !UnwindSafe for Session<S>
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