gstreamer-rs/gstreamer/src/clock_time.rs
2017-12-10 12:31:41 +02:00

157 lines
4 KiB
Rust

// Copyright (C) 2017 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 ffi;
use glib;
use glib::translate::*;
use std::{cmp, fmt};
#[derive(PartialEq, Eq, PartialOrd, Ord, Hash, Clone, Copy, Debug, Default)]
pub struct ClockTime(pub Option<u64>);
impl ClockTime {
pub fn hours(&self) -> Option<u64> {
(*self / ::SECOND / 60 / 60).0
}
pub fn minutes(&self) -> Option<u64> {
(*self / ::SECOND / 60).0
}
pub fn seconds(&self) -> Option<u64> {
(*self / ::SECOND).0
}
pub fn mseconds(&self) -> Option<u64> {
(*self / ::MSECOND).0
}
pub fn useconds(&self) -> Option<u64> {
(*self / ::USECOND).0
}
pub fn nseconds(&self) -> Option<u64> {
(*self / ::NSECOND).0
}
pub fn nanoseconds(&self) -> Option<u64> {
self.0
}
pub fn from_seconds(seconds: u64) -> ClockTime {
seconds * ::SECOND
}
pub fn from_mseconds(mseconds: u64) -> ClockTime {
mseconds * ::MSECOND
}
pub fn from_useconds(useconds: u64) -> ClockTime {
useconds * ::USECOND
}
pub fn from_nseconds(nseconds: u64) -> ClockTime {
nseconds * ::NSECOND
}
pub fn none() -> ClockTime {
ClockTime(None)
}
}
impl fmt::Display for ClockTime {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
let precision = f.precision().unwrap_or(9);
// TODO: Could also check width and pad the hours as needed
let (h, m, s, ns) = match self.0 {
Some(v) => {
let mut s = v / 1_000_000_000;
let mut m = s / 60;
let h = m / 60;
s %= 60;
m %= 60;
let ns = v % 1_000_000_000;
(h, m, s, ns)
}
None => (99, 99, 99, 999_999_999),
};
if precision == 0 {
f.write_fmt(format_args!("{:02}:{:02}:{:02}", h, m, s))
} else {
let mut divisor = 1;
let precision = cmp::min(precision, 9);
for _ in 0..(9 - precision) {
divisor *= 10;
}
f.write_fmt(format_args!(
"{:02}:{:02}:{:02}.{:0width$}",
h,
m,
s,
ns / divisor,
width = precision
))
}
}
}
#[doc(hidden)]
impl ToGlib for ClockTime {
type GlibType = ffi::GstClockTime;
fn to_glib(&self) -> ffi::GstClockTime {
match self.0 {
None => ffi::GST_CLOCK_TIME_NONE,
Some(v) => v,
}
}
}
#[doc(hidden)]
impl FromGlib<ffi::GstClockTime> for ClockTime {
fn from_glib(value: ffi::GstClockTime) -> Self {
skip_assert_initialized!();
match value {
ffi::GST_CLOCK_TIME_NONE => ClockTime(None),
value => ClockTime(Some(value)),
}
}
}
#[doc(hidden)]
impl<'a> glib::value::FromValueOptional<'a> for ClockTime {
unsafe fn from_value_optional(value: &'a glib::Value) -> Option<Self> {
<u64 as glib::value::FromValueOptional>::from_value_optional(value)
.map(ClockTime::from_glib)
}
}
#[doc(hidden)]
impl<'a> glib::value::FromValue<'a> for ClockTime {
unsafe fn from_value(value: &'a glib::Value) -> Self {
ClockTime::from_glib(<u64 as glib::value::FromValue>::from_value(value))
}
}
#[doc(hidden)]
impl glib::value::SetValue for ClockTime {
unsafe fn set_value(value: &mut glib::Value, this: &Self) {
<u64 as glib::value::SetValue>::set_value(value, &this.to_glib());
}
}
#[doc(hidden)]
impl glib::StaticType for ClockTime {
fn static_type() -> glib::Type {
<u64 as glib::StaticType>::static_type()
}
}