gstreamer-rs/gstreamer-sdp/src/sdp_message.rs

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// Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::borrow::{Borrow, BorrowMut, ToOwned};
use std::ffi::CStr;
use std::fmt;
use std::mem;
use std::ops;
use std::ptr;
use glib::translate::*;
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use gobject_sys;
use gst;
use gst::MiniObject;
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use gst_sdp_sys;
use sdp_attribute::SDPAttribute;
use sdp_bandwidth::SDPBandwidth;
use sdp_connection::SDPConnection;
use sdp_key::SDPKey;
use sdp_media::SDPMedia;
use sdp_media::SDPMediaRef;
use sdp_origin::SDPOrigin;
use sdp_time::SDPTime;
use sdp_zone::SDPZone;
glib_wrapper! {
#[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct SDPMessage(Boxed<gst_sdp_sys::GstSDPMessage>);
match fn {
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copy => |ptr| gobject_sys::g_boxed_copy(gst_sdp_sys::gst_sdp_message_get_type(), ptr as *mut _) as *mut gst_sdp_sys::GstSDPMessage,
free => |ptr| gobject_sys::g_boxed_free(gst_sdp_sys::gst_sdp_message_get_type(), ptr as *mut _),
get_type => || gst_sdp_sys::gst_sdp_message_get_type(),
}
}
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unsafe impl Send for SDPMessage {}
unsafe impl Sync for SDPMessage {}
impl Default for SDPMessage {
fn default() -> Self {
Self::new()
}
}
impl ops::Deref for SDPMessage {
type Target = SDPMessageRef;
fn deref(&self) -> &SDPMessageRef {
unsafe { &*(self.to_glib_none().0 as *const SDPMessageRef) }
}
}
impl ops::DerefMut for SDPMessage {
fn deref_mut(&mut self) -> &mut SDPMessageRef {
unsafe { &mut *(self.to_glib_none_mut().0 as *mut SDPMessageRef) }
}
}
impl fmt::Debug for SDPMessage {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
<SDPMessageRef as fmt::Debug>::fmt(&*self, f)
}
}
impl fmt::Display for SDPMessage {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
<SDPMessageRef as fmt::Display>::fmt(&*self, f)
}
}
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impl SDPMessage {
pub fn new() -> SDPMessage {
assert_initialized_main_thread!();
unsafe {
let mut msg = ptr::null_mut();
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gst_sdp_sys::gst_sdp_message_new(&mut msg);
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from_glib_full(msg)
}
}
pub fn parse_buffer(data: &[u8]) -> Result<Self, ()> {
assert_initialized_main_thread!();
unsafe {
let size = data.len() as u32;
let mut msg = ptr::null_mut();
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gst_sdp_sys::gst_sdp_message_new(&mut msg);
let result =
gst_sdp_sys::gst_sdp_message_parse_buffer(data.to_glib_none().0, size, msg);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(from_glib_full(msg)),
_ => {
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gst_sdp_sys::gst_sdp_message_uninit(msg);
Err(())
}
}
}
}
pub fn parse_uri(uri: &str) -> Result<Self, ()> {
assert_initialized_main_thread!();
unsafe {
let mut msg = ptr::null_mut();
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gst_sdp_sys::gst_sdp_message_new(&mut msg);
let result = gst_sdp_sys::gst_sdp_message_parse_uri(uri.to_glib_none().0, msg);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(from_glib_full(msg)),
_ => {
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gst_sdp_sys::gst_sdp_message_uninit(msg);
Err(())
}
}
}
}
}
#[repr(C)]
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pub struct SDPMessageRef(gst_sdp_sys::GstSDPMessage);
impl fmt::Debug for SDPMessageRef {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use std::cell::RefCell;
struct DebugIter<I>(RefCell<I>);
impl<I: Iterator> fmt::Debug for DebugIter<I>
where
I::Item: fmt::Debug,
{
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_list().entries(&mut *self.0.borrow_mut()).finish()
}
}
f.debug_struct("SDPMessage")
.field("connection", &self.get_connection())
.field("information", &self.get_information())
.field("key", &self.get_key())
.field("origin", &self.get_origin())
.field("session-name", &self.get_session_name())
.field("uri", &self.get_uri())
.field("version", &self.get_version())
.field("attributes", &DebugIter(RefCell::new(self.attributes())))
.field("bandwidths", &DebugIter(RefCell::new(self.bandwidths())))
.field("emails", &DebugIter(RefCell::new(self.emails())))
.field("medias", &DebugIter(RefCell::new(self.medias())))
.field("phones", &DebugIter(RefCell::new(self.phones())))
.field("times", &DebugIter(RefCell::new(self.times())))
.field("zones", &DebugIter(RefCell::new(self.zones())))
.finish()
}
}
impl fmt::Display for SDPMessageRef {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.as_text() {
Some(text) => f.write_str(text.as_str()),
None => Err(fmt::Error),
}
}
}
unsafe impl Send for SDPMessageRef {}
unsafe impl Sync for SDPMessageRef {}
impl SDPMessageRef {
pub fn add_attribute(&mut self, key: &str, value: Option<&str>) {
unsafe {
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gst_sdp_sys::gst_sdp_message_add_attribute(
&mut self.0,
key.to_glib_none().0,
value.to_glib_none().0,
);
}
}
pub fn add_email(&mut self, email: &str) {
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unsafe { gst_sdp_sys::gst_sdp_message_add_email(&mut self.0, email.to_glib_none().0) };
}
pub fn add_media(&mut self, media: SDPMedia) {
unsafe {
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gst_sdp_sys::gst_sdp_message_add_media(
&mut self.0,
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media.to_glib_none().0 as *mut gst_sdp_sys::GstSDPMedia,
);
}
}
pub fn add_phone(&mut self, phone: &str) {
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unsafe { gst_sdp_sys::gst_sdp_message_add_phone(&mut self.0, phone.to_glib_none().0) };
}
pub fn add_time(&mut self, start: &str, stop: &str, repeat: &[&str]) {
unsafe {
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gst_sdp_sys::gst_sdp_message_add_time(
&mut self.0,
start.to_glib_none().0,
stop.to_glib_none().0,
repeat.to_glib_none().0,
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)
};
}
pub fn add_zone(&mut self, adj_time: &str, typed_time: &str) {
unsafe {
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gst_sdp_sys::gst_sdp_message_add_zone(
&mut self.0,
adj_time.to_glib_none().0,
typed_time.to_glib_none().0,
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)
};
}
pub fn as_text(&self) -> Option<String> {
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unsafe { from_glib_full(gst_sdp_sys::gst_sdp_message_as_text(&self.0)) }
}
pub fn attributes_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_attributes_len(&self.0) }
}
pub fn attributes_to_caps(&self, caps: &mut gst::CapsRef) -> Result<(), ()> {
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_attributes_to_caps(&self.0, caps.as_mut_ptr()) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn bandwidths_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_bandwidths_len(&self.0) }
}
pub fn dump(&self) {
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unsafe { gst_sdp_sys::gst_sdp_message_dump(&self.0) };
}
pub fn emails_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_emails_len(&self.0) }
}
pub fn get_attribute(&self, idx: u32) -> Option<&SDPAttribute> {
if idx >= self.attributes_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_attribute(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPAttribute))
}
}
}
pub fn get_attribute_val(&self, key: &str) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_attribute_val(&self.0, key.to_glib_none().0);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_attribute_val_n(&self, key: &str, nth: u32) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_attribute_val_n(
&self.0,
key.to_glib_none().0,
nth,
);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_bandwidth(&self, idx: u32) -> Option<&SDPBandwidth> {
if idx >= self.bandwidths_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_bandwidth(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPBandwidth))
}
}
}
pub fn get_connection(&self) -> Option<&SDPConnection> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_connection(&self.0);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPConnection))
}
}
}
pub fn get_email(&self, idx: u32) -> Option<&str> {
if idx >= self.emails_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_email(&self.0, idx);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_information(&self) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_information(&self.0);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_key(&self) -> Option<&SDPKey> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_key(&self.0);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPKey))
}
}
}
pub fn get_media(&self, idx: u32) -> Option<&SDPMediaRef> {
if idx >= self.medias_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_media(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *const SDPMediaRef))
}
}
}
pub fn get_media_mut(&mut self, idx: u32) -> Option<&mut SDPMediaRef> {
if idx >= self.medias_len() {
return None;
}
unsafe {
let ptr = gst_sdp_sys::gst_sdp_message_get_media(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&mut *(ptr as *mut SDPMediaRef))
}
}
}
pub fn get_origin(&self) -> Option<&SDPOrigin> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_origin(&self.0);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPOrigin))
}
}
}
pub fn get_phone(&self, idx: u32) -> Option<&str> {
if idx >= self.phones_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_phone(&self.0, idx);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_session_name(&self) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_session_name(&self.0);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_time(&self, idx: u32) -> Option<&SDPTime> {
if idx >= self.times_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_time(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPTime))
}
}
}
pub fn get_uri(&self) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_uri(&self.0);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_version(&self) -> Option<&str> {
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_version(&self.0);
if ptr.is_null() {
None
} else {
let result = CStr::from_ptr(ptr).to_str();
match result {
Ok(attr) => Some(attr),
Err(_) => None,
}
}
}
}
pub fn get_zone(&self, idx: u32) -> Option<&SDPZone> {
if idx >= self.zones_len() {
return None;
}
unsafe {
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let ptr = gst_sdp_sys::gst_sdp_message_get_zone(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPZone))
}
}
}
pub fn insert_attribute(&mut self, idx: Option<u32>, mut attr: SDPAttribute) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.attributes_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let result =
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unsafe { gst_sdp_sys::gst_sdp_message_insert_attribute(&mut self.0, idx, &mut attr.0) };
mem::forget(attr);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_bandwidth(&mut self, idx: Option<u32>, mut bw: SDPBandwidth) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.bandwidths_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_insert_bandwidth(&mut self.0, idx, &mut bw.0) };
mem::forget(bw);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_email(&mut self, idx: Option<u32>, email: &str) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.emails_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
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let result = unsafe {
gst_sdp_sys::gst_sdp_message_insert_email(&mut self.0, idx, email.to_glib_none().0)
};
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_phone(&mut self, idx: Option<u32>, phone: &str) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.phones_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
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let result = unsafe {
gst_sdp_sys::gst_sdp_message_insert_phone(&mut self.0, idx, phone.to_glib_none().0)
};
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_time(&mut self, idx: Option<u32>, mut time: SDPTime) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.times_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_insert_time(&mut self.0, idx, &mut time.0) };
mem::forget(time);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_zone(&mut self, idx: Option<u32>, mut zone: SDPZone) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.zones_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_insert_zone(&mut self.0, idx, &mut zone.0) };
mem::forget(zone);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn medias_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_medias_len(&self.0) }
}
pub fn phones_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_phones_len(&self.0) }
}
pub fn remove_attribute(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.attributes_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_attribute(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_bandwidth(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.bandwidths_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_bandwidth(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_email(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.emails_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_email(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_phone(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.phones_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_phone(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_time(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.times_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_time(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_zone(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.zones_len() {
return Err(());
}
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let result = unsafe { gst_sdp_sys::gst_sdp_message_remove_zone(&mut self.0, idx) };
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_attribute(&mut self, idx: u32, mut attr: SDPAttribute) -> Result<(), ()> {
if idx >= self.attributes_len() {
return Err(());
}
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let result = unsafe {
gst_sdp_sys::gst_sdp_message_replace_attribute(&mut self.0, idx, &mut attr.0)
};
mem::forget(attr);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_bandwidth(&mut self, idx: u32, mut bw: SDPBandwidth) -> Result<(), ()> {
if idx >= self.bandwidths_len() {
return Err(());
}
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_replace_bandwidth(&mut self.0, idx, &mut bw.0) };
mem::forget(bw);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_email(&mut self, idx: u32, email: &str) -> Result<(), ()> {
if idx >= self.emails_len() {
return Err(());
}
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let result = unsafe {
gst_sdp_sys::gst_sdp_message_replace_email(&mut self.0, idx, email.to_glib_none().0)
};
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_phone(&mut self, idx: u32, phone: &str) -> Result<(), ()> {
if idx >= self.phones_len() {
return Err(());
}
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let result = unsafe {
gst_sdp_sys::gst_sdp_message_replace_phone(&mut self.0, idx, phone.to_glib_none().0)
};
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_time(&mut self, idx: u32, mut time: SDPTime) -> Result<(), ()> {
if idx >= self.times_len() {
return Err(());
}
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_replace_time(&mut self.0, idx, &mut time.0) };
mem::forget(time);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_zone(&mut self, idx: u32, mut zone: SDPZone) -> Result<(), ()> {
if idx >= self.zones_len() {
return Err(());
}
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let result =
unsafe { gst_sdp_sys::gst_sdp_message_replace_zone(&mut self.0, idx, &mut zone.0) };
mem::forget(zone);
match result {
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gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn set_connection(
&mut self,
nettype: &str,
addrtype: &str,
address: &str,
ttl: u32,
addr_number: u32,
) {
unsafe {
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gst_sdp_sys::gst_sdp_message_set_connection(
&mut self.0,
nettype.to_glib_none().0,
addrtype.to_glib_none().0,
address.to_glib_none().0,
ttl,
addr_number,
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)
};
}
pub fn set_information(&mut self, information: &str) {
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unsafe {
gst_sdp_sys::gst_sdp_message_set_information(&mut self.0, information.to_glib_none().0)
};
}
pub fn set_key(&mut self, type_: &str, data: &str) {
unsafe {
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gst_sdp_sys::gst_sdp_message_set_key(
&mut self.0,
type_.to_glib_none().0,
data.to_glib_none().0,
)
};
}
pub fn set_origin(
&mut self,
username: &str,
sess_id: &str,
sess_version: &str,
nettype: &str,
addrtype: &str,
addr: &str,
) {
unsafe {
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gst_sdp_sys::gst_sdp_message_set_origin(
&mut self.0,
username.to_glib_none().0,
sess_id.to_glib_none().0,
sess_version.to_glib_none().0,
nettype.to_glib_none().0,
addrtype.to_glib_none().0,
addr.to_glib_none().0,
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)
};
}
pub fn set_session_name(&mut self, session_name: &str) {
unsafe {
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gst_sdp_sys::gst_sdp_message_set_session_name(
&mut self.0,
session_name.to_glib_none().0,
)
};
}
pub fn set_uri(&mut self, uri: &str) {
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unsafe { gst_sdp_sys::gst_sdp_message_set_uri(&mut self.0, uri.to_glib_none().0) };
}
pub fn set_version(&mut self, version: &str) {
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unsafe { gst_sdp_sys::gst_sdp_message_set_version(&mut self.0, version.to_glib_none().0) };
}
pub fn times_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_times_len(&self.0) }
}
pub fn zones_len(&self) -> u32 {
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unsafe { gst_sdp_sys::gst_sdp_message_zones_len(&self.0) }
}
pub fn as_uri(&self, scheme: &str) -> Option<String> {
assert_initialized_main_thread!();
unsafe {
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from_glib_full(gst_sdp_sys::gst_sdp_message_as_uri(
scheme.to_glib_none().0,
&self.0,
))
}
}
pub fn attributes(&self) -> AttributesIter {
AttributesIter::new(self)
}
pub fn bandwidths(&self) -> BandwidthsIter {
BandwidthsIter::new(self)
}
pub fn emails(&self) -> EmailsIter {
EmailsIter::new(self)
}
pub fn medias(&self) -> MediasIter {
MediasIter::new(self)
}
pub fn medias_mut(&mut self) -> MediasIterMut {
MediasIterMut::new(self)
}
pub fn phones(&self) -> PhonesIter {
PhonesIter::new(self)
}
pub fn times(&self) -> TimesIter {
TimesIter::new(self)
}
pub fn zones(&self) -> ZonesIter {
ZonesIter::new(self)
}
}
impl Borrow<SDPMessageRef> for SDPMessage {
fn borrow(&self) -> &SDPMessageRef {
&*self
}
}
impl BorrowMut<SDPMessageRef> for SDPMessage {
fn borrow_mut(&mut self) -> &mut SDPMessageRef {
&mut *self
}
}
impl ToOwned for SDPMessageRef {
type Owned = SDPMessage;
fn to_owned(&self) -> SDPMessage {
unsafe {
let mut ptr = ptr::null_mut();
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gst_sdp_sys::gst_sdp_message_copy(&self.0, &mut ptr);
from_glib_full(ptr)
}
}
}
macro_rules! define_iter(
($name:ident, $typ:ty, $get_item:expr, $get_len:expr) => {
#[derive(Debug)]
pub struct $name<'a> {
message: &'a SDPMessageRef,
idx: u32,
len: u32,
}
impl<'a> $name<'a> {
fn new(message: &'a SDPMessageRef) -> $name<'a> {
skip_assert_initialized!();
let len = $get_len(message);
$name {
message,
idx: 0,
len,
}
}
}
impl<'a> Iterator for $name<'a> {
type Item = $typ;
fn next(&mut self) -> Option<Self::Item> {
if self.idx >= self.len {
return None;
}
let item = $get_item(self.message, self.idx)?;
self.idx += 1;
Some(item)
}
fn size_hint(&self) -> (usize, Option<usize>) {
if self.idx == self.len {
return (0, Some(0))
}
let remaining = (self.len - self.idx) as usize;
(remaining, Some(remaining))
}
}
impl<'a> DoubleEndedIterator for $name<'a> {
fn next_back(&mut self) -> Option<Self::Item> {
if self.idx == self.len {
return None;
}
self.len -= 1;
$get_item(self.message, self.len)
}
}
impl<'a> ExactSizeIterator for $name<'a> {}
}
);
macro_rules! define_iter_mut(
($name:ident, $typ:ty, $get_item:expr, $get_len:expr) => {
#[derive(Debug)]
pub struct $name<'a> {
message: &'a mut SDPMessageRef,
idx: u32,
len: u32,
}
impl<'a> $name<'a> {
fn new(message: &'a mut SDPMessageRef) -> $name<'a> {
skip_assert_initialized!();
let len = $get_len(message);
$name {
message,
idx: 0,
len,
}
}
}
impl<'a> Iterator for $name<'a> {
type Item = $typ;
fn next(&mut self) -> Option<Self::Item> {
// The lifetime of the passed self is not 'a but we need to return a message reference
// with that lifetime here. The reason here is that the compiler does not and can't
// know that it's statically impossible to mutate the message between different calls
// to next(), so it has to assume that every call to next() will invalidate any
// returned references.
//
// In theory we could have a function on the iterator that mutates the message and for
// example removes the message that was returned here at an earlier time. The compiler
// would be correct to complain in that case, but we don't provide such a function.
let message = unsafe {
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&mut *(&mut self.message as *mut &'a mut SDPMessageRef as *mut SDPMessageRef)
};
if self.idx >= self.len {
return None;
}
let item = $get_item(message, self.idx)?;
self.idx += 1;
Some(item)
}
fn size_hint(&self) -> (usize, Option<usize>) {
if self.idx == self.len {
return (0, Some(0))
}
let remaining = (self.len - self.idx) as usize;
(remaining, Some(remaining))
}
}
impl<'a> DoubleEndedIterator for $name<'a> {
fn next_back(&mut self) -> Option<Self::Item> {
let message = unsafe {
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&mut *(&mut self.message as *mut &'a mut SDPMessageRef as *mut SDPMessageRef)
};
if self.idx == self.len {
return None;
}
self.len -= 1;
$get_item(message, self.len)
}
}
impl<'a> ExactSizeIterator for $name<'a> {}
}
);
define_iter!(
AttributesIter,
&'a SDPAttribute,
|message: &'a SDPMessageRef, idx| message.get_attribute(idx),
|message: &SDPMessageRef| message.attributes_len()
);
define_iter!(
BandwidthsIter,
&'a SDPBandwidth,
|message: &'a SDPMessageRef, idx| message.get_bandwidth(idx),
|message: &SDPMessageRef| message.bandwidths_len()
);
define_iter!(
EmailsIter,
&'a str,
|message: &'a SDPMessageRef, idx| message.get_email(idx),
|message: &SDPMessageRef| message.emails_len()
);
define_iter!(
MediasIter,
&'a SDPMediaRef,
|message: &'a SDPMessageRef, idx| message.get_media(idx),
|message: &SDPMessageRef| message.medias_len()
);
define_iter_mut!(
MediasIterMut,
&'a mut SDPMediaRef,
|message: &'a mut SDPMessageRef, idx| { message.get_media_mut(idx) },
|message: &mut SDPMessageRef| message.medias_len()
);
define_iter!(
PhonesIter,
&'a str,
|message: &'a SDPMessageRef, idx| message.get_phone(idx),
|message: &SDPMessageRef| message.phones_len()
);
define_iter!(
TimesIter,
&'a SDPTime,
|message: &'a SDPMessageRef, idx| message.get_time(idx),
|message: &SDPMessageRef| message.times_len()
);
define_iter!(
ZonesIter,
&'a SDPZone,
|message: &'a SDPMessageRef, idx| message.get_zone(idx),
|message: &SDPMessageRef| message.zones_len()
);
#[cfg(test)]
mod tests {
use super::*;
use SDPMessage;
fn init() {
gst::init().unwrap();
}
#[test]
fn media_from_message() {
init();
let sdp = "v=0\r\no=- 1938737043334325940 0 IN IP4 0.0.0.0\r\ns=-\r\nt=0 0\r\na=ice-options:trickle\r\nm=video 9 UDP/TLS/RTP/SAVPF 96\r\nc=IN IP4 0.0.0.0\r\na=setup:actpass\r\na=ice-ufrag:YZxU9JlWHzHcF6O2U09/q3PvBhbTPdZW\r\na=ice-pwd:fyrt730GWo5mFGc9m2z/vbUu3z1lewla\r\na=sendrecv\r\na=rtcp-mux\r\na=rtcp-rsize\r\na=rtpmap:96 VP8/90000\r\na=rtcp-fb:96 nack\r\na=rtcp-fb:96 nack pli\r\na=framerate:30\r\na=mid:video0\r\na=fingerprint:sha-256 DB:48:8F:18:13:F3:AA:13:31:B3:75:3D:1A:D3:BA:88:4A:ED:1B:56:14:C3:09:CD:BC:4D:18:42:B9:6A:5F:98\r\nm=audio 9 UDP/TLS/RTP/SAVPF 97\r\nc=IN IP4 0.0.0.0\r\na=setup:actpass\r\na=ice-ufrag:04KZM9qE2S4r06AN6A9CeXOM6mzO0LZY\r\na=ice-pwd:cJTSfHF6hHDAcsTJXZVJeuYCC6rKqBvW\r\na=sendrecv\r\na=rtcp-mux\r\na=rtcp-rsize\r\na=rtpmap:97 OPUS/48000/2\r\na=rtcp-fb:97 nack\r\na=rtcp-fb:97 nack pli\r\na=mid:audio1\r\na=fingerprint:sha-256 DB:48:8F:18:13:F3:AA:13:31:B3:75:3D:1A:D3:BA:88:4A:ED:1B:56:14:C3:09:CD:BC:4D:18:42:B9:6A:5F:98\r\n";
let sdp = SDPMessage::parse_buffer(sdp.as_bytes()).unwrap();
let media = sdp.get_media(0).unwrap();
assert_eq!(media.formats_len(), 1);
}
#[test]
fn debug_impl() {
init();
let sdp = SDPMessage::new();
assert!(!format!("{:?}", sdp).is_empty());
}
}