}
impl<T: Clone> NAVideoBuffer<T> {
+ /// Constructs video buffer from the provided components.
+ pub fn from_raw_parts(info: NAVideoInfo, data: NABufferRef<Vec<T>>, offs: Vec<usize>, strides: Vec<usize>) -> Self {
+ Self { info, data, offs, strides }
+ }
/// Returns the component offset (0 for all unavailable offsets).
pub fn get_offset(&self, idx: usize) -> usize {
if idx >= self.offs.len() { 0 }
}
/// Return the length of frame in samples.
pub fn get_length(&self) -> usize { self.len }
+ /// Truncates buffer length if possible.
+ ///
+ /// In case when new length is larger than old length nothing is done.
+ pub fn truncate(&mut self, new_len: usize) {
+ self.len = self.len.min(new_len);
+ }
fn print_contents(&self, datatype: &str) {
println!("Audio buffer with {} data, stride {}, step {}", datatype, self.stride, self.step);
}
/// Creates a clone of current buffer.
-pub fn copy_buffer(buf: NABufferType) -> NABufferType {
+pub fn copy_buffer(buf: &NABufferType) -> NABufferType {
buf.clone()
}
pub fn set_duration(&mut self, dur: Option<u64>) { self.duration = dur; }
/// Converts time in given scale into timestamp in given base.
+ #[allow(clippy::collapsible_if)]
pub fn time_to_ts(time: u64, base: u64, tb_num: u32, tb_den: u32) -> u64 {
let tb_num = u64::from(tb_num);
let tb_den = u64::from(tb_den);
- let tmp = time.checked_mul(tb_num);
+ let tmp = time.checked_mul(tb_den);
if let Some(tmp) = tmp {
- tmp / base / tb_den
+ tmp / base / tb_num
} else {
- let tmp = time.checked_mul(tb_num);
- if let Some(tmp) = tmp {
- tmp / base / tb_den
+ if tb_num < base {
+ let coarse = time / tb_num;
+ if let Some(tmp) = coarse.checked_mul(tb_den) {
+ tmp / base
+ } else {
+ (coarse / base) * tb_den
+ }
} else {
let coarse = time / base;
- let tmp = coarse.checked_mul(tb_num);
- if let Some(tmp) = tmp {
- tmp / tb_den
+ if let Some(tmp) = coarse.checked_mul(tb_den) {
+ tmp / tb_num
} else {
- (coarse / tb_den) * tb_num
+ (coarse / tb_num) * tb_den
}
}
}
}
}
}
- fn get_cur_ts(&self) -> u64 { self.pts.unwrap_or(self.dts.unwrap_or(0)) }
+ fn get_cur_ts(&self) -> u64 { self.pts.unwrap_or_else(|| self.dts.unwrap_or(0)) }
fn get_cur_millis(&self) -> u64 {
let ts = self.get_cur_ts();
Self::ts_to_time(ts, 1000, self.tb_num, self.tb_den)
pub tb_num: u32,
/// Timebase denominator.
pub tb_den: u32,
+ /// Duration in timebase units (zero if not available).
+ pub duration: u64,
}
/// A specialised reference-counted `NAStream` type.
pub type NAStreamRef = Arc<NAStream>;
/// Downscales the timebase by its greatest common denominator.
+#[allow(clippy::comparison_chain)]
pub fn reduce_timebase(tb_num: u32, tb_den: u32) -> (u32, u32) {
if tb_num == 0 { return (tb_num, tb_den); }
if (tb_den % tb_num) == 0 { return (1, tb_den / tb_num); }
impl NAStream {
/// Constructs a new `NAStream` instance.
- pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32) -> Self {
+ pub fn new(mt: StreamType, id: u32, info: NACodecInfo, tb_num: u32, tb_den: u32, duration: u64) -> Self {
let (n, d) = reduce_timebase(tb_num, tb_den);
- NAStream { media_type: mt, id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d }
+ NAStream { media_type: mt, id, num: 0, info: info.into_ref(), tb_num: n, tb_den: d, duration }
}
/// Returns stream id.
pub fn get_id(&self) -> u32 { self.id }
self.tb_num = n;
self.tb_den = d;
}
+ /// Returns stream duration.
+ pub fn get_duration(&self) -> usize { self.num }
/// Converts current instance into a reference-counted one.
pub fn into_ref(self) -> NAStreamRef { Arc::new(self) }
}