X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-core%2Fsrc%2Fframe.rs;h=fbccfbee0a5d3106f0e14f323110548e669d202c;hb=73f0f89ff3a3616a8e65b5a31c2303725994c56a;hp=f0794a86f9eeac3874bdfd2917c0aa3119304565;hpb=2c6462c81d1c18ccb26a6262400b33108e983820;p=nihav.git

diff --git a/nihav-core/src/frame.rs b/nihav-core/src/frame.rs
index f0794a8..fbccfbe 100644
--- a/nihav-core/src/frame.rs
+++ b/nihav-core/src/frame.rs
@@ -251,6 +251,12 @@ impl<T: Clone> NAAudioBuffer<T> {
     }
     /// 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);
@@ -661,6 +667,10 @@ pub fn alloc_audio_buffer(ainfo: NAAudioInfo, nsamples: usize, chmap: NAChannelM
                 let data: Vec<i16> = vec![0; length];
                 let buf: NAAudioBuffer<i16> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride, step };
                 Ok(NABufferType::AudioI16(buf))
+            } else if ainfo.format.get_bits() == 32 && ainfo.format.is_signed() {
+                let data: Vec<i32> = vec![0; length];
+                let buf: NAAudioBuffer<i32> = NAAudioBuffer { data: NABufferRef::new(data), info: ainfo, offs, chmap, len: nsamples, stride, step };
+                Ok(NABufferType::AudioI32(buf))
             } else {
                 Err(AllocatorError::TooLargeDimensions)
             }
@@ -969,6 +979,33 @@ impl NATimeInfo {
             }
         }
     }
+    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)
+    }
+    /// Checks whether the current time information is earler than provided reference time.
+    pub fn less_than(&self, time: NATimePoint) -> bool {
+        if self.pts.is_none() && self.dts.is_none() {
+            return true;
+        }
+        match time {
+            NATimePoint::PTS(rpts) => self.get_cur_ts() < rpts,
+            NATimePoint::Milliseconds(ms) => self.get_cur_millis() < ms,
+            NATimePoint::None => false,
+        }
+    }
+    /// Checks whether the current time information is the same as provided reference time.
+    pub fn equal(&self, time: NATimePoint) -> bool {
+        if self.pts.is_none() && self.dts.is_none() {
+            return time == NATimePoint::None;
+        }
+        match time {
+            NATimePoint::PTS(rpts) => self.get_cur_ts() == rpts,
+            NATimePoint::Milliseconds(ms) => self.get_cur_millis() == ms,
+            NATimePoint::None => false,
+        }
+    }
 }
 
 /// Time information for specifying durations or seek positions.
@@ -978,6 +1015,14 @@ pub enum NATimePoint {
     Milliseconds(u64),
     /// Stream timestamp.
     PTS(u64),
+    /// No time information present.
+    None,
+}
+
+impl Default for NATimePoint {
+    fn default() -> Self {
+        NATimePoint::None
+    }
 }
 
 impl fmt::Display for NATimePoint {
@@ -1013,6 +1058,9 @@ impl fmt::Display for NATimePoint {
             NATimePoint::PTS(pts) => {
                 write!(f, "{}pts", pts)
             },
+            NATimePoint::None => {
+                write!(f, "none")
+            },
         }
     }
 }
@@ -1073,7 +1121,7 @@ impl FromStr for NATimePoint {
                     let ret = parts.next().unwrap().parse::<u64>();
                     if ret.is_err() { return Err(FormatParseError {}); }
                     let seconds = ret.unwrap();
-                    if seconds >= 60 { return Err(FormatParseError {}); }
+                    if mins.is_some() && seconds >= 60 { return Err(FormatParseError {}); }
                     let millis = if let Some(val) = parts.next() {
                             let mut mval = 0;
                             let mut base = 0;