gstreamer-rs/gstreamer-sdp/src/sdp_time.rs
2020-12-15 11:53:31 +01:00

107 lines
2.8 KiB
Rust

// Take a look at the license at the top of the repository in the LICENSE file.
use std::ffi::CStr;
use std::fmt;
use std::mem;
use std::os::raw::c_char;
use std::ptr;
use glib::translate::*;
#[repr(transparent)]
pub struct SDPTime(pub(crate) ffi::GstSDPTime);
unsafe impl Send for SDPTime {}
unsafe impl Sync for SDPTime {}
impl SDPTime {
pub fn new(start: &str, stop: &str, repeat: &[&str]) -> Self {
assert_initialized_main_thread!();
unsafe {
let mut time = mem::MaybeUninit::zeroed();
ffi::gst_sdp_time_set(
time.as_mut_ptr(),
start.to_glib_none().0,
stop.to_glib_none().0,
repeat.to_glib_none().0,
);
SDPTime(time.assume_init())
}
}
pub fn start(&self) -> Option<&str> {
unsafe {
if self.0.start.is_null() {
None
} else {
Some(CStr::from_ptr(self.0.start).to_str().unwrap())
}
}
}
pub fn stop(&self) -> Option<&str> {
unsafe {
if self.0.stop.is_null() {
None
} else {
Some(CStr::from_ptr(self.0.stop).to_str().unwrap())
}
}
}
pub fn repeat(&self) -> Vec<&str> {
#[allow(clippy::cast_ptr_alignment)]
unsafe {
if self.0.repeat.is_null() || (*self.0.repeat).data.is_null() {
return vec![];
}
let arr = (*self.0.repeat).data as *const *const c_char;
let len = (*self.0.repeat).len as usize;
let mut vec = Vec::with_capacity(len);
for i in 0..len {
vec.push(CStr::from_ptr(*arr.add(i)).to_str().unwrap());
}
vec
}
}
}
impl Clone for SDPTime {
fn clone(&self) -> Self {
assert_initialized_main_thread!();
#[allow(clippy::cast_ptr_alignment)]
unsafe {
let mut time = mem::MaybeUninit::zeroed();
ffi::gst_sdp_time_set(
time.as_mut_ptr(),
self.0.start,
self.0.stop,
if self.0.repeat.is_null() {
ptr::null_mut()
} else {
(*self.0.repeat).data as *mut *const c_char
},
);
SDPTime(time.assume_init())
}
}
}
impl Drop for SDPTime {
fn drop(&mut self) {
unsafe {
ffi::gst_sdp_time_clear(&mut self.0);
}
}
}
impl fmt::Debug for SDPTime {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.debug_struct("SDPTime")
.field("start", &self.start())
.field("stop", &self.stop())
.field("repeat", &self.repeat())
.finish()
}
}