gstreamer-rs/gstreamer-sdp/src/sdp_media.rs

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// Take a look at the license at the top of the repository in the LICENSE file.
use std::{
borrow::{Borrow, BorrowMut, ToOwned},
ffi::CStr,
fmt, mem, ops, ptr,
};
use glib::translate::*;
use crate::{
sdp_attribute::SDPAttribute, sdp_bandwidth::SDPBandwidth, sdp_connection::SDPConnection,
sdp_key::SDPKey,
};
glib::wrapper! {
#[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
#[doc(alias = "GstSDPMedia")]
pub struct SDPMedia(Boxed<ffi::GstSDPMedia>);
match fn {
copy => |ptr| {
let mut copy = ptr::null_mut();
let res = ffi::gst_sdp_media_copy(ptr, &mut copy);
debug_assert_eq!(res, ffi::GST_SDP_OK);
copy
},
free => |ptr| {
let res = ffi::gst_sdp_media_free(ptr);
debug_assert_eq!(res, ffi::GST_SDP_OK);
},
}
}
impl SDPMedia {
#[doc(alias = "gst_sdp_media_new")]
pub fn new() -> Self {
assert_initialized_main_thread!();
unsafe {
let mut media = ptr::null_mut();
ffi::gst_sdp_media_new(&mut media);
from_glib_full(media)
}
}
}
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impl Default for SDPMedia {
fn default() -> Self {
Self::new()
}
}
unsafe impl Send for SDPMedia {}
unsafe impl Sync for SDPMedia {}
impl ops::Deref for SDPMedia {
type Target = SDPMediaRef;
fn deref(&self) -> &SDPMediaRef {
unsafe { &*(self.as_ptr() as *const SDPMediaRef) }
}
}
impl ops::DerefMut for SDPMedia {
fn deref_mut(&mut self) -> &mut SDPMediaRef {
unsafe { &mut *(self.to_glib_none_mut().0 as *mut SDPMediaRef) }
}
}
impl fmt::Debug for SDPMedia {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
<SDPMediaRef as fmt::Debug>::fmt(self, f)
}
}
impl fmt::Display for SDPMedia {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
<SDPMediaRef as fmt::Display>::fmt(self, f)
}
}
#[repr(transparent)]
#[doc(alias = "GstSDPMedia")]
pub struct SDPMediaRef(ffi::GstSDPMedia);
impl fmt::Debug for SDPMediaRef {
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("SDPMedia")
.field("formats", &DebugIter(RefCell::new(self.formats())))
.field("connections", &DebugIter(RefCell::new(self.connections())))
.field("bandwidths", &DebugIter(RefCell::new(self.bandwidths())))
.field("attributes", &DebugIter(RefCell::new(self.attributes())))
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.field("information", &self.information())
.field("key", &self.key())
.field("media", &self.media())
.field("port", &self.port())
.field("num-ports", &self.num_ports())
.field("proto", &self.proto())
.finish()
}
}
impl fmt::Display for SDPMediaRef {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.as_text() {
Ok(text) => f.write_str(text.as_str()),
Err(_) => Err(fmt::Error),
}
}
}
unsafe impl Send for SDPMediaRef {}
unsafe impl Sync for SDPMediaRef {}
impl SDPMediaRef {
#[doc(alias = "gst_sdp_media_add_attribute")]
pub fn add_attribute(&mut self, key: &str, value: Option<&str>) {
let value = value.to_glib_none();
unsafe { ffi::gst_sdp_media_add_attribute(&mut self.0, key.to_glib_none().0, value.0) };
}
#[doc(alias = "gst_sdp_media_add_bandwidth")]
pub fn add_bandwidth(&mut self, bwtype: &str, bandwidth: u32) {
unsafe {
ffi::gst_sdp_media_add_bandwidth(&mut self.0, bwtype.to_glib_none().0, bandwidth)
};
}
#[doc(alias = "gst_sdp_media_add_connection")]
pub fn add_connection(
&mut self,
nettype: &str,
addrtype: &str,
address: &str,
ttl: u32,
addr_number: u32,
) {
unsafe {
ffi::gst_sdp_media_add_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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)
};
}
#[doc(alias = "gst_sdp_media_add_format")]
pub fn add_format(&mut self, format: &str) {
unsafe { ffi::gst_sdp_media_add_format(&mut self.0, format.to_glib_none().0) };
}
#[doc(alias = "gst_sdp_media_as_text")]
pub fn as_text(&self) -> Result<String, glib::error::BoolError> {
unsafe {
match from_glib_full(ffi::gst_sdp_media_as_text(&self.0)) {
Some(s) => Ok(s),
None => Err(glib::bool_error!(
"Failed to convert the contents of media to a text string"
)),
}
}
}
pub fn attributes(&self) -> AttributesIter {
AttributesIter::new(self)
}
pub fn formats(&self) -> FormatsIter {
FormatsIter::new(self)
}
pub fn bandwidths(&self) -> BandwidthsIter {
BandwidthsIter::new(self)
}
pub fn connections(&self) -> ConnectionsIter {
ConnectionsIter::new(self)
}
#[doc(alias = "gst_sdp_media_attributes_len")]
pub fn attributes_len(&self) -> u32 {
unsafe { ffi::gst_sdp_media_attributes_len(&self.0) }
}
#[doc(alias = "gst_sdp_media_attributes_to_caps")]
pub fn attributes_to_caps(&self, caps: &mut gst::CapsRef) -> Result<(), glib::BoolError> {
let result = unsafe { ffi::gst_sdp_media_attributes_to_caps(&self.0, caps.as_mut_ptr()) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to store attributes in caps")),
}
}
#[doc(alias = "gst_sdp_media_bandwidths_len")]
pub fn bandwidths_len(&self) -> u32 {
unsafe { ffi::gst_sdp_media_bandwidths_len(&self.0) }
}
#[doc(alias = "gst_sdp_media_connections_len")]
pub fn connections_len(&self) -> u32 {
unsafe { ffi::gst_sdp_media_connections_len(&self.0) }
}
#[doc(alias = "gst_sdp_media_formats_len")]
pub fn formats_len(&self) -> u32 {
unsafe { ffi::gst_sdp_media_formats_len(&self.0) }
}
#[doc(alias = "get_attribute")]
#[doc(alias = "gst_sdp_media_get_attribute")]
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pub fn attribute(&self, idx: u32) -> Option<&SDPAttribute> {
if idx >= self.attributes_len() {
return None;
}
unsafe {
let ptr = ffi::gst_sdp_media_get_attribute(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPAttribute))
}
}
}
#[doc(alias = "get_attribute_val")]
#[doc(alias = "gst_sdp_media_get_attribute_val")]
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pub fn attribute_val(&self, key: &str) -> Option<&str> {
unsafe {
let ptr = ffi::gst_sdp_media_get_attribute_val(&self.0, key.to_glib_none().0);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "get_attribute_val_n")]
#[doc(alias = "gst_sdp_media_get_attribute_val_n")]
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pub fn attribute_val_n(&self, key: &str, nth: u32) -> Option<&str> {
unsafe {
let ptr = ffi::gst_sdp_media_get_attribute_val_n(&self.0, key.to_glib_none().0, nth);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "get_bandwidth")]
#[doc(alias = "gst_sdp_media_get_bandwidth")]
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pub fn bandwidth(&self, idx: u32) -> Option<&SDPBandwidth> {
if idx >= self.bandwidths_len() {
return None;
}
unsafe {
let ptr = ffi::gst_sdp_media_get_bandwidth(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPBandwidth))
}
}
}
#[doc(alias = "get_caps_from_media")]
#[doc(alias = "gst_sdp_media_get_caps_from_media")]
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pub fn caps_from_media(&self, pt: i32) -> Option<gst::Caps> {
unsafe { from_glib_full(ffi::gst_sdp_media_get_caps_from_media(&self.0, pt)) }
}
#[doc(alias = "get_connection")]
#[doc(alias = "gst_sdp_media_get_connection")]
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pub fn connection(&self, idx: u32) -> Option<&SDPConnection> {
if idx >= self.connections_len() {
return None;
}
unsafe {
let ptr = ffi::gst_sdp_media_get_connection(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPConnection))
}
}
}
#[doc(alias = "get_format")]
#[doc(alias = "gst_sdp_media_get_format")]
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pub fn format(&self, idx: u32) -> Option<&str> {
if idx >= self.formats_len() {
return None;
}
unsafe {
let ptr = ffi::gst_sdp_media_get_format(&self.0, idx);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "get_information")]
#[doc(alias = "gst_sdp_media_get_information")]
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pub fn information(&self) -> Option<&str> {
unsafe {
let ptr = ffi::gst_sdp_media_get_information(&self.0);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "get_key")]
#[doc(alias = "gst_sdp_media_get_key")]
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pub fn key(&self) -> Option<&SDPKey> {
unsafe {
let ptr = ffi::gst_sdp_media_get_key(&self.0);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPKey))
}
}
}
#[doc(alias = "get_media")]
#[doc(alias = "gst_sdp_media_get_media")]
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pub fn media(&self) -> Option<&str> {
unsafe {
let ptr = ffi::gst_sdp_media_get_media(&self.0);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "get_num_ports")]
#[doc(alias = "gst_sdp_media_get_num_ports")]
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pub fn num_ports(&self) -> u32 {
unsafe { ffi::gst_sdp_media_get_num_ports(&self.0) }
}
#[doc(alias = "get_port")]
#[doc(alias = "gst_sdp_media_get_port")]
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pub fn port(&self) -> u32 {
unsafe { ffi::gst_sdp_media_get_port(&self.0) }
}
#[doc(alias = "get_proto")]
#[doc(alias = "gst_sdp_media_get_proto")]
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pub fn proto(&self) -> Option<&str> {
unsafe {
let ptr = ffi::gst_sdp_media_get_proto(&self.0);
if ptr.is_null() {
None
} else {
CStr::from_ptr(ptr).to_str().ok()
}
}
}
#[doc(alias = "gst_sdp_media_insert_attribute")]
pub fn insert_attribute(
&mut self,
idx: Option<u32>,
attr: SDPAttribute,
) -> Result<(), glib::BoolError> {
if let Some(idx) = idx {
if idx >= self.attributes_len() {
return Err(glib::bool_error!("Failed to insert attribute"));
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let mut attr = mem::ManuallyDrop::new(attr);
let result = unsafe { ffi::gst_sdp_media_insert_attribute(&mut self.0, idx, &mut attr.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to insert attribute")),
}
}
#[doc(alias = "gst_sdp_media_insert_bandwidth")]
pub fn insert_bandwidth(
&mut self,
idx: Option<u32>,
bw: SDPBandwidth,
) -> Result<(), glib::BoolError> {
if let Some(idx) = idx {
if idx >= self.bandwidths_len() {
return Err(glib::bool_error!("Failed to insert bandwidth"));
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let mut bw = mem::ManuallyDrop::new(bw);
let result = unsafe { ffi::gst_sdp_media_insert_bandwidth(&mut self.0, idx, &mut bw.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to insert attribute")),
}
}
#[doc(alias = "gst_sdp_media_insert_connection")]
pub fn insert_connection(
&mut self,
idx: Option<u32>,
conn: SDPConnection,
) -> Result<(), glib::BoolError> {
if let Some(idx) = idx {
if idx >= self.connections_len() {
return Err(glib::bool_error!("Failed to insert connection"));
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let mut conn = mem::ManuallyDrop::new(conn);
let result = unsafe { ffi::gst_sdp_media_insert_connection(&mut self.0, idx, &mut conn.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to insert connection")),
}
}
#[doc(alias = "gst_sdp_media_insert_format")]
pub fn insert_format(&mut self, idx: Option<u32>, format: &str) -> Result<(), glib::BoolError> {
if let Some(idx) = idx {
if idx >= self.formats_len() {
return Err(glib::bool_error!("Failed to insert format"));
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let result =
unsafe { ffi::gst_sdp_media_insert_format(&mut self.0, idx, format.to_glib_none().0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to insert format")),
}
}
#[doc(alias = "gst_sdp_media_remove_attribute")]
pub fn remove_attribute(&mut self, idx: u32) -> Result<(), glib::BoolError> {
if idx >= self.attributes_len() {
return Err(glib::bool_error!("Failed to remove attribute"));
}
let result = unsafe { ffi::gst_sdp_media_remove_attribute(&mut self.0, idx) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to remove attribute")),
}
}
#[doc(alias = "gst_sdp_media_remove_bandwidth")]
pub fn remove_bandwidth(&mut self, idx: u32) -> Result<(), glib::BoolError> {
if idx >= self.bandwidths_len() {
return Err(glib::bool_error!("Failed to remove bandwidth"));
}
let result = unsafe { ffi::gst_sdp_media_remove_bandwidth(&mut self.0, idx) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to remove bandwidth")),
}
}
#[doc(alias = "gst_sdp_media_remove_connection")]
pub fn remove_connection(&mut self, idx: u32) -> Result<(), glib::BoolError> {
if idx >= self.connections_len() {
return Err(glib::bool_error!("Failed to remove connection"));
}
let result = unsafe { ffi::gst_sdp_media_remove_connection(&mut self.0, idx) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to remove connection")),
}
}
#[doc(alias = "gst_sdp_media_remove_format")]
pub fn remove_format(&mut self, idx: u32) -> Result<(), glib::BoolError> {
if idx >= self.formats_len() {
return Err(glib::bool_error!("Failed to remove format"));
}
let result = unsafe { ffi::gst_sdp_media_remove_format(&mut self.0, idx) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to remove format")),
}
}
#[doc(alias = "gst_sdp_media_replace_attribute")]
pub fn replace_attribute(
&mut self,
idx: u32,
attr: SDPAttribute,
) -> Result<(), glib::BoolError> {
if idx >= self.attributes_len() {
return Err(glib::bool_error!("Failed to replace attribute"));
}
let mut attr = mem::ManuallyDrop::new(attr);
let result = unsafe { ffi::gst_sdp_media_replace_attribute(&mut self.0, idx, &mut attr.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to replace attribute")),
}
}
#[doc(alias = "gst_sdp_media_replace_bandwidth")]
pub fn replace_bandwidth(&mut self, idx: u32, bw: SDPBandwidth) -> Result<(), glib::BoolError> {
if idx >= self.bandwidths_len() {
return Err(glib::bool_error!("Failed to replace bandwidth"));
}
let mut bw = mem::ManuallyDrop::new(bw);
let result = unsafe { ffi::gst_sdp_media_replace_bandwidth(&mut self.0, idx, &mut bw.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to replace bandwidth")),
}
}
#[doc(alias = "gst_sdp_media_replace_connection")]
pub fn replace_connection(
&mut self,
idx: u32,
conn: SDPConnection,
) -> Result<(), glib::BoolError> {
if idx >= self.connections_len() {
return Err(glib::bool_error!("Failed to replace connection"));
}
let mut conn = mem::ManuallyDrop::new(conn);
let result =
unsafe { ffi::gst_sdp_media_replace_connection(&mut self.0, idx, &mut conn.0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to replace connection")),
}
}
#[doc(alias = "gst_sdp_media_replace_format")]
pub fn replace_format(&mut self, idx: u32, format: &str) -> Result<(), glib::BoolError> {
if idx >= self.formats_len() {
return Err(glib::bool_error!("Failed to replace format"));
}
let result =
unsafe { ffi::gst_sdp_media_replace_format(&mut self.0, idx, format.to_glib_none().0) };
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to replace format")),
}
}
#[doc(alias = "gst_sdp_media_set_information")]
pub fn set_information(&mut self, information: &str) {
unsafe { ffi::gst_sdp_media_set_information(&mut self.0, information.to_glib_none().0) };
}
#[doc(alias = "gst_sdp_media_set_key")]
pub fn set_key(&mut self, type_: &str, data: &str) {
unsafe {
ffi::gst_sdp_media_set_key(&mut self.0, type_.to_glib_none().0, data.to_glib_none().0)
};
}
#[doc(alias = "gst_sdp_media_set_media")]
pub fn set_media(&mut self, med: &str) {
unsafe { ffi::gst_sdp_media_set_media(&mut self.0, med.to_glib_none().0) };
}
#[doc(alias = "gst_sdp_media_set_port_info")]
pub fn set_port_info(&mut self, port: u32, num_ports: u32) {
unsafe { ffi::gst_sdp_media_set_port_info(&mut self.0, port, num_ports) };
}
#[doc(alias = "gst_sdp_media_set_proto")]
pub fn set_proto(&mut self, proto: &str) {
unsafe { ffi::gst_sdp_media_set_proto(&mut self.0, proto.to_glib_none().0) };
}
#[doc(alias = "gst_sdp_media_set_media_from_caps")]
pub fn set_media_from_caps(
caps: &gst::CapsRef,
media: &mut SDPMedia,
) -> Result<(), glib::BoolError> {
skip_assert_initialized!();
let result = unsafe {
ffi::gst_sdp_media_set_media_from_caps(caps.as_ptr(), media.to_glib_none_mut().0)
};
match result {
ffi::GST_SDP_OK => Ok(()),
_ => Err(glib::bool_error!("Failed to set media from caps")),
}
}
}
impl Borrow<SDPMediaRef> for SDPMedia {
fn borrow(&self) -> &SDPMediaRef {
self
}
}
impl BorrowMut<SDPMediaRef> for SDPMedia {
fn borrow_mut(&mut self) -> &mut SDPMediaRef {
&mut *self
}
}
impl ToOwned for SDPMediaRef {
type Owned = SDPMedia;
fn to_owned(&self) -> SDPMedia {
unsafe {
let mut ptr = ptr::null_mut();
ffi::gst_sdp_media_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> {
media: &'a SDPMediaRef,
idx: usize,
len: usize,
}
impl<'a> $name<'a> {
#[allow(clippy::redundant_closure_call)]
fn new(media: &'a SDPMediaRef) -> $name<'a> {
skip_assert_initialized!();
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let len = $get_len(media);
$name {
media,
idx: 0,
len: len as usize,
}
}
}
#[allow(clippy::redundant_closure_call)]
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 = $get_item(self.media, self.idx as u32).unwrap();
self.idx += 1;
Some(item)
}
fn size_hint(&self) -> (usize, Option<usize>) {
let remaining = self.len - self.idx;
(remaining, Some(remaining))
}
fn count(self) -> usize {
self.len - self.idx
}
fn nth(&mut self, n: usize) -> Option<Self::Item> {
let (end, overflow) = self.idx.overflowing_add(n);
if end >= self.len || overflow {
self.idx = self.len;
None
} else {
self.idx = end + 1;
Some($get_item(self.media, end as u32).unwrap())
}
}
fn last(self) -> Option<Self::Item> {
if self.idx == self.len {
None
} else {
Some($get_item(self.media, self.len as u32 - 1).unwrap())
}
}
}
#[allow(clippy::redundant_closure_call)]
impl<'a> DoubleEndedIterator for $name<'a> {
fn next_back(&mut self) -> Option<Self::Item> {
if self.idx == self.len {
return None;
}
self.len -= 1;
Some($get_item(self.media, self.len as u32).unwrap())
}
fn nth_back(&mut self, n: usize) -> Option<Self::Item> {
let (end, overflow) = self.len.overflowing_sub(n);
if end <= self.idx || overflow {
self.idx = self.len;
None
} else {
self.len = end - 1;
Some($get_item(self.media, self.len as u32).unwrap())
}
}
}
impl<'a> ExactSizeIterator for $name<'a> {}
impl<'a> std::iter::FusedIterator for $name<'a> {}
}
);
define_iter!(
BandwidthsIter,
&'a SDPBandwidth,
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|media: &'a SDPMediaRef, idx| media.bandwidth(idx),
|media: &SDPMediaRef| media.bandwidths_len()
);
define_iter!(
FormatsIter,
&'a str,
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|media: &'a SDPMediaRef, idx| media.format(idx),
|media: &SDPMediaRef| media.formats_len()
);
define_iter!(
ConnectionsIter,
&'a SDPConnection,
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|media: &'a SDPMediaRef, idx| media.connection(idx),
|media: &SDPMediaRef| media.connections_len()
);
define_iter!(
AttributesIter,
&'a SDPAttribute,
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|media: &'a SDPMediaRef, idx| media.attribute(idx),
|media: &SDPMediaRef| media.attributes_len()
);
#[cfg(test)]
mod tests {
use super::*;
fn init() {
gst::init().unwrap();
}
#[test]
fn debug_impl() {
init();
let sdp = SDPMedia::new();
assert!(!format!("{sdp:?}").is_empty());
}
}