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::*;
use gst;
use gst_sdp_sys;
use sdp_attribute::SDPAttribute;
use sdp_bandwidth::SDPBandwidth;
use sdp_connection::SDPConnection;
use sdp_key::SDPKey;
glib_wrapper! {
#[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct SDPMedia(Boxed<gst_sdp_sys::GstSDPMedia>);
match fn {
copy => |ptr| {
let mut copy = ptr::null_mut();
gst_sdp_sys::gst_sdp_media_copy(ptr as *const gst_sdp_sys::GstSDPMedia, &mut copy);
copy
},
free => |ptr| {
gst_sdp_sys::gst_sdp_media_free(ptr);
},
}
}
impl SDPMedia {
pub fn new() -> Self {
assert_initialized_main_thread!();
unsafe {
let mut media = ptr::null_mut();
gst_sdp_sys::gst_sdp_media_new(&mut media);
from_glib_full(media)
}
}
}
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.to_glib_none().0 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)]
pub struct SDPMediaRef(gst_sdp_sys::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())))
.field("information", &self.get_information())
.field("key", &self.get_key())
.field("media", &self.get_media())
.field("port", &self.get_port())
.field("num-ports", &self.get_num_ports())
.field("proto", &self.get_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 {
pub fn add_attribute(&mut self, key: &str, value: Option<&str>) {
let value = value.to_glib_none();
unsafe {
gst_sdp_sys::gst_sdp_media_add_attribute(&mut self.0, key.to_glib_none().0, value.0)
};
}
pub fn add_bandwidth(&mut self, bwtype: &str, bandwidth: u32) {
unsafe {
gst_sdp_sys::gst_sdp_media_add_bandwidth(
&mut self.0,
bwtype.to_glib_none().0,
bandwidth,
)
};
}
pub fn add_connection(
&mut self,
nettype: &str,
addrtype: &str,
address: &str,
ttl: u32,
addr_number: u32,
) {
unsafe {
gst_sdp_sys::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,
)
};
}
pub fn add_format(&mut self, format: &str) {
unsafe { gst_sdp_sys::gst_sdp_media_add_format(&mut self.0, format.to_glib_none().0) };
}
pub fn as_text(&self) -> Result<String, glib::error::BoolError> {
unsafe {
match from_glib_full(gst_sdp_sys::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)
}
pub fn attributes_len(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_attributes_len(&self.0) }
}
pub fn attributes_to_caps(&self, caps: &mut gst::CapsRef) -> Result<(), ()> {
let result =
unsafe { gst_sdp_sys::gst_sdp_media_attributes_to_caps(&self.0, caps.as_mut_ptr()) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn bandwidths_len(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_bandwidths_len(&self.0) }
}
pub fn connections_len(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_connections_len(&self.0) }
}
pub fn formats_len(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_formats_len(&self.0) }
}
pub fn get_attribute(&self, idx: u32) -> Option<&SDPAttribute> {
if idx >= self.attributes_len() {
return None;
}
unsafe {
let ptr = gst_sdp_sys::gst_sdp_media_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 {
let ptr = gst_sdp_sys::gst_sdp_media_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 {
let ptr =
gst_sdp_sys::gst_sdp_media_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 {
let ptr = gst_sdp_sys::gst_sdp_media_get_bandwidth(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPBandwidth))
}
}
}
pub fn get_caps_from_media(&self, pt: i32) -> Option<gst::Caps> {
unsafe { from_glib_full(gst_sdp_sys::gst_sdp_media_get_caps_from_media(&self.0, pt)) }
}
pub fn get_connection(&self, idx: u32) -> Option<&SDPConnection> {
if idx >= self.connections_len() {
return None;
}
unsafe {
let ptr = gst_sdp_sys::gst_sdp_media_get_connection(&self.0, idx);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPConnection))
}
}
}
pub fn get_format(&self, idx: u32) -> Option<&str> {
if idx >= self.formats_len() {
return None;
}
unsafe {
let ptr = gst_sdp_sys::gst_sdp_media_get_format(&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 {
let ptr = gst_sdp_sys::gst_sdp_media_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 {
let ptr = gst_sdp_sys::gst_sdp_media_get_key(&self.0);
if ptr.is_null() {
None
} else {
Some(&*(ptr as *mut SDPKey))
}
}
}
pub fn get_media(&self) -> Option<&str> {
unsafe {
let ptr = gst_sdp_sys::gst_sdp_media_get_media(&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_num_ports(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_get_num_ports(&self.0) }
}
pub fn get_port(&self) -> u32 {
unsafe { gst_sdp_sys::gst_sdp_media_get_port(&self.0) }
}
pub fn get_proto(&self) -> Option<&str> {
unsafe {
let ptr = gst_sdp_sys::gst_sdp_media_get_proto(&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 insert_attribute(&mut self, idx: Option<u32>, 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 mut attr = mem::ManuallyDrop::new(attr);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_insert_attribute(&mut self.0, idx, &mut attr.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_bandwidth(&mut self, idx: Option<u32>, 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);
let mut bw = mem::ManuallyDrop::new(bw);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_insert_bandwidth(&mut self.0, idx, &mut bw.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_connection(&mut self, idx: Option<u32>, conn: SDPConnection) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.connections_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let mut conn = mem::ManuallyDrop::new(conn);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_insert_connection(&mut self.0, idx, &mut conn.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn insert_format(&mut self, idx: Option<u32>, format: &str) -> Result<(), ()> {
if let Some(idx) = idx {
if idx >= self.formats_len() {
return Err(());
}
}
let idx = idx.map(|idx| idx as i32).unwrap_or(-1);
let result = unsafe {
gst_sdp_sys::gst_sdp_media_insert_format(&mut self.0, idx, format.to_glib_none().0)
};
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_attribute(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.attributes_len() {
return Err(());
}
let result = unsafe { gst_sdp_sys::gst_sdp_media_remove_attribute(&mut self.0, idx) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_bandwidth(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.bandwidths_len() {
return Err(());
}
let result = unsafe { gst_sdp_sys::gst_sdp_media_remove_bandwidth(&mut self.0, idx) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_connection(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.connections_len() {
return Err(());
}
let result = unsafe { gst_sdp_sys::gst_sdp_media_remove_connection(&mut self.0, idx) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn remove_format(&mut self, idx: u32) -> Result<(), ()> {
if idx >= self.formats_len() {
return Err(());
}
let result = unsafe { gst_sdp_sys::gst_sdp_media_remove_format(&mut self.0, idx) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_attribute(&mut self, idx: u32, attr: SDPAttribute) -> Result<(), ()> {
if idx >= self.attributes_len() {
return Err(());
}
let mut attr = mem::ManuallyDrop::new(attr);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_replace_attribute(&mut self.0, idx, &mut attr.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_bandwidth(&mut self, idx: u32, bw: SDPBandwidth) -> Result<(), ()> {
if idx >= self.bandwidths_len() {
return Err(());
}
let mut bw = mem::ManuallyDrop::new(bw);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_replace_bandwidth(&mut self.0, idx, &mut bw.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_connection(&mut self, idx: u32, conn: SDPConnection) -> Result<(), ()> {
if idx >= self.connections_len() {
return Err(());
}
let mut conn = mem::ManuallyDrop::new(conn);
let result =
unsafe { gst_sdp_sys::gst_sdp_media_replace_connection(&mut self.0, idx, &mut conn.0) };
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn replace_format(&mut self, idx: u32, format: &str) -> Result<(), ()> {
if idx >= self.formats_len() {
return Err(());
}
let result = unsafe {
gst_sdp_sys::gst_sdp_media_replace_format(&mut self.0, idx, format.to_glib_none().0)
};
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
pub fn set_information(&mut self, information: &str) {
unsafe {
gst_sdp_sys::gst_sdp_media_set_information(&mut self.0, information.to_glib_none().0)
};
}
pub fn set_key(&mut self, type_: &str, data: &str) {
unsafe {
gst_sdp_sys::gst_sdp_media_set_key(
&mut self.0,
type_.to_glib_none().0,
data.to_glib_none().0,
)
};
}
pub fn set_media(&mut self, med: &str) {
unsafe { gst_sdp_sys::gst_sdp_media_set_media(&mut self.0, med.to_glib_none().0) };
}
pub fn set_port_info(&mut self, port: u32, num_ports: u32) {
unsafe { gst_sdp_sys::gst_sdp_media_set_port_info(&mut self.0, port, num_ports) };
}
pub fn set_proto(&mut self, proto: &str) {
unsafe { gst_sdp_sys::gst_sdp_media_set_proto(&mut self.0, proto.to_glib_none().0) };
}
pub fn set_media_from_caps(caps: &gst::Caps, media: &mut SDPMedia) -> Result<(), ()> {
assert_initialized_main_thread!();
let result = unsafe {
gst_sdp_sys::gst_sdp_media_set_media_from_caps(
caps.to_glib_none().0,
media.to_glib_none_mut().0,
)
};
match result {
gst_sdp_sys::GST_SDP_OK => Ok(()),
_ => Err(()),
}
}
}
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();
gst_sdp_sys::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: u32,
len: u32,
}
impl<'a> $name<'a> {
fn new(media: &'a SDPMediaRef) -> $name<'a> {
skip_assert_initialized!();
let len = $get_len(media);
$name {
media,
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.media, 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.media, self.len)
}
}
impl<'a> ExactSizeIterator for $name<'a> {}
}
);
define_iter!(
BandwidthsIter,
&'a SDPBandwidth,
|media: &'a SDPMediaRef, idx| media.get_bandwidth(idx),
|media: &SDPMediaRef| media.bandwidths_len()
);
define_iter!(
FormatsIter,
&'a str,
|media: &'a SDPMediaRef, idx| media.get_format(idx),
|media: &SDPMediaRef| media.formats_len()
);
define_iter!(
ConnectionsIter,
&'a SDPConnection,
|media: &'a SDPMediaRef, idx| media.get_connection(idx),
|media: &SDPMediaRef| media.connections_len()
);
define_iter!(
AttributesIter,
&'a SDPAttribute,
|media: &'a SDPMediaRef, idx| media.get_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());
}
}