replace vec.truncate(0) with vec.clear()

[nihav.git] / nihav-realmedia / src / codecs / rv3040.rs

diff --git a/nihav-realmedia/src/codecs/rv3040.rs b/nihav-realmedia/src/codecs/rv3040.rs
index f9a1817ec677eafcc7f4979d9f8afcca5ac1cb90..762d05459b3b11172f9f89b3c2aa321d8ac1086a 100644 (file)
--- a/nihav-realmedia/src/codecs/rv3040.rs
+++ b/nihav-realmedia/src/codecs/rv3040.rs
@@ -326,13 +326,13 @@ impl MVInfo {
     }
     fn reset(&mut self) {
         let size = self.w * self.h;
-        self.mv_f.truncate(0);
+        self.mv_f.clear();
         self.mv_f.resize(size, ZERO_MV);
-        self.mv_b.truncate(0);
+        self.mv_b.clear();
         self.mv_b.resize(size, ZERO_MV);
-        self.has_f.truncate(0);
+        self.has_f.clear();
         self.has_f.resize(size >> 2, false);
-        self.has_b.truncate(0);
+        self.has_b.clear();
         self.has_b.resize(size >> 2, false);
     }
     fn fill(&mut self, mb_x: usize, mb_y: usize, fwd: bool, mv: MV) {
@@ -511,7 +511,7 @@ pub trait RV34DSP {
 fn parse_slice_offsets(src: &[u8], offsets: &mut Vec<usize>) -> DecoderResult<()> {
     let num_slices = (src[0] as usize) + 1;
     let ini_off = num_slices * 8 + 1;
-    offsets.truncate(0);
+    offsets.clear();
 
     if ini_off >= src.len() { return Err(DecoderError::ShortData); }
 
@@ -532,7 +532,7 @@ fn parse_slice_offsets(src: &[u8], offsets: &mut Vec<usize>) -> DecoderResult<()
     Ok(())
 }
 
-fn decode_slice_header(br: &mut BitReader, bd: &mut RV34BitstreamDecoder, slice_no: usize, slice_offs: &[usize], old_width: usize, old_height: usize) -> DecoderResult<RV34SliceHeader> {
+fn decode_slice_header(br: &mut BitReader, bd: &mut dyn RV34BitstreamDecoder, slice_no: usize, slice_offs: &[usize], old_width: usize, old_height: usize) -> DecoderResult<RV34SliceHeader> {
     validate!(slice_no < slice_offs.len());
     br.seek((slice_offs[slice_no] * 8) as u32)?;
     let mut shdr = bd.decode_slice_header(br, old_width, old_height)?;
@@ -777,7 +777,7 @@ impl RV34Decoder {
             base_ts:    0,
         }
     }
-    fn decode_mb_header_intra(&mut self, bd: &mut RV34BitstreamDecoder, br: &mut BitReader, is_i16: bool, im: &mut IntraModeState, q: u8, has_top: bool, has_dq: bool) -> DecoderResult<MBInfo> {
+    fn decode_mb_header_intra(&mut self, bd: &mut dyn RV34BitstreamDecoder, br: &mut BitReader, is_i16: bool, im: &mut IntraModeState, q: u8, has_top: bool, has_dq: bool) -> DecoderResult<MBInfo> {
         if is_i16 {
             let imode = br.read(2)? as i8;
             im.fill_block(imode);
@@ -793,7 +793,7 @@ impl RV34Decoder {
             Ok(MBInfo { mbtype: MBType::MBIntra, skip_run: 0, dquant: dq })
         }
     }
-    fn decode_mb_header_inter(&mut self, bd: &mut RV34BitstreamDecoder, br: &mut BitReader, ftype: FrameType, mbtype: MBType, im: &mut IntraModeState, q: u8, has_top: bool) -> DecoderResult<MBInfo> {
+    fn decode_mb_header_inter(&mut self, bd: &mut dyn RV34BitstreamDecoder, br: &mut BitReader, ftype: FrameType, mbtype: MBType, im: &mut IntraModeState, q: u8, has_top: bool) -> DecoderResult<MBInfo> {
         let hdr = bd.decode_inter_mb_hdr(br, ftype, mbtype)?;
         validate!(hdr.mbtype != MBType::Invalid);
         if hdr.dquant {
@@ -1095,8 +1095,8 @@ impl RV34Decoder {
         }
     }
 
-    #[allow(clippy::cyclomatic_complexity)]
-    pub fn parse_frame(&mut self, supp: &mut NADecoderSupport, src: &[u8], bd: &mut RV34BitstreamDecoder) -> DecoderResult<(NABufferType, FrameType, u64)> {
+    #[allow(clippy::cognitive_complexity)]
+    pub fn parse_frame(&mut self, supp: &mut NADecoderSupport, src: &[u8], bd: &mut dyn RV34BitstreamDecoder) -> DecoderResult<(NABufferType, FrameType, u64)> {
         let mut slice_offs: Vec<usize> = Vec::new();
         parse_slice_offsets(src, &mut slice_offs)?;
         let ini_off = slice_offs.len() * 8 + 1;