142 lines
4.1 KiB
Rust
142 lines
4.1 KiB
Rust
// Copyright (c) 2019 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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generate_element!(
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/// Source element for the ssrc SDP attribute.
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Source, "source", JINGLE_SSMA,
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attributes: [
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/// Maps to the ssrc-id parameter.
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id: Required<u32> = "ssrc",
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],
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children: [
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/// List of attributes for this source.
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parameters: Vec<Parameter> = ("parameter", JINGLE_SSMA) => Parameter
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]
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);
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impl Source {
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/// Create a new SSMA Source element.
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pub fn new(id: u32) -> Source {
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Source {
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id,
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parameters: Vec::new(),
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}
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}
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}
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generate_element!(
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/// Parameter associated with a ssrc.
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Parameter, "parameter", JINGLE_SSMA,
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attributes: [
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/// The name of the parameter.
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name: Required<String> = "name",
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/// The optional value of the parameter.
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value: Option<String> = "value",
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]
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);
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generate_attribute!(
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/// From RFC5888, the list of allowed semantics.
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Semantics, "semantics", {
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/// Lip Synchronization, defined in RFC5888.
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Ls => "LS",
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/// Flow Identification, defined in RFC5888.
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Fid => "FID",
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/// Single Reservation Flow, defined in RFC3524.
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Srf => "SRF",
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/// Alternative Network Address Types, defined in RFC4091.
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Anat => "ANAT",
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/// Forward Error Correction, defined in RFC4756.
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Fec => "FEC",
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/// Decoding Dependency, defined in RFC5583.
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Ddp => "DDP",
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}
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);
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generate_element!(
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/// Element grouping multiple ssrc.
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Group, "ssrc-group", JINGLE_SSMA,
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attributes: [
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/// The semantics of this group.
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semantics: Required<Semantics> = "semantics",
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],
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children: [
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/// The various ssrc concerned by this group.
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sources: Vec<Source> = ("source", JINGLE_SSMA) => Source
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]
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);
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::Element;
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use std::convert::TryFrom;
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#[cfg(target_pointer_width = "32")]
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#[test]
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fn test_size() {
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assert_size!(Source, 16);
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assert_size!(Parameter, 24);
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assert_size!(Semantics, 1);
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assert_size!(Group, 16);
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}
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#[cfg(target_pointer_width = "64")]
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#[test]
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fn test_size() {
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assert_size!(Source, 32);
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assert_size!(Parameter, 48);
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assert_size!(Semantics, 1);
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assert_size!(Group, 32);
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}
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#[test]
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fn parse_source() {
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let elem: Element = "
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<source ssrc='1656081975' xmlns='urn:xmpp:jingle:apps:rtp:ssma:0'>
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<parameter name='cname' value='Yv/wvbCdsDW2Prgd'/>
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<parameter name='msid' value='MLTJKIHilGn71fNQoszkQ4jlPTuS5vJyKVIv MLTJKIHilGn71fNQoszkQ4jlPTuS5vJyKVIva0'/>
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</source>"
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.parse()
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.unwrap();
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let mut ssrc = Source::try_from(elem).unwrap();
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assert_eq!(ssrc.id, 1656081975);
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assert_eq!(ssrc.parameters.len(), 2);
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let parameter = ssrc.parameters.pop().unwrap();
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assert_eq!(parameter.name, "msid");
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assert_eq!(
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parameter.value.unwrap(),
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"MLTJKIHilGn71fNQoszkQ4jlPTuS5vJyKVIv MLTJKIHilGn71fNQoszkQ4jlPTuS5vJyKVIva0"
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);
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let parameter = ssrc.parameters.pop().unwrap();
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assert_eq!(parameter.name, "cname");
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assert_eq!(parameter.value.unwrap(), "Yv/wvbCdsDW2Prgd");
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}
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#[test]
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fn parse_source_group() {
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let elem: Element = "
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<ssrc-group semantics='FID' xmlns='urn:xmpp:jingle:apps:rtp:ssma:0'>
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<source ssrc='2301230316'/>
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<source ssrc='386328120'/>
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</ssrc-group>"
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.parse()
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.unwrap();
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let mut group = Group::try_from(elem).unwrap();
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assert_eq!(group.semantics, Semantics::Fid);
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assert_eq!(group.sources.len(), 2);
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let source = group.sources.pop().unwrap();
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assert_eq!(source.id, 386328120);
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let source = group.sources.pop().unwrap();
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assert_eq!(source.id, 2301230316);
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}
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}
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