vivo: fix or silence clippy warnings

diff --git a/nihav-vivo/src/codecs/g723_1.rs b/nihav-vivo/src/codecs/g723_1.rs
index 938ef3304a31af2110344662b73765df817dd4bd..1b6d8c626952c4bc795188f2a1328da926387e00 100644 (file)
--- a/nihav-vivo/src/codecs/g723_1.rs
+++ b/nihav-vivo/src/codecs/g723_1.rs
@@ -171,7 +171,7 @@ impl Subframe {
     fn compute_ppf_gains(&mut self, offset: usize, is_6300: bool, tgt_energy: i32, corr_energy: i32, res_energy: i32) {
         self.ppf_index = offset;
 
-        let tmp1 = tgt_energy * res_energy >> 1;
+        let tmp1 = (tgt_energy * res_energy) >> 1;
         let tmp2 = corr_energy * corr_energy * 2;
         if tmp1 >= tmp2 {
             return;
@@ -180,11 +180,11 @@ impl Subframe {
         self.ppf_opt_gain = if corr_energy >= res_energy {
                 gain_weight
             } else {
-                (corr_energy << 15) / res_energy * gain_weight >> 15
+                ((corr_energy << 15) / res_energy * gain_weight) >> 15
             };
 
         let tmp1 = (tgt_energy << 15) + (corr_energy * self.ppf_opt_gain * 2);
-        let tmp2 = (self.ppf_opt_gain * self.ppf_opt_gain >> 15) * res_energy;
+        let tmp2 = ((self.ppf_opt_gain * self.ppf_opt_gain) >> 15) * res_energy;
 
         let residual = tmp1.saturating_add(tmp2).saturating_add(1 << 15) >> 16;
 
@@ -195,7 +195,7 @@ impl Subframe {
             self.ppf_sc_gain = square_root_i32(val << 16);
         }
 
-        self.ppf_opt_gain = i32::from(clip16(self.ppf_opt_gain * self.ppf_sc_gain >> 15));
+        self.ppf_opt_gain = i32::from(clip16((self.ppf_opt_gain * self.ppf_sc_gain) >> 15));
     }
 }
 
@@ -229,7 +229,7 @@ impl PRNG {
     }
     fn next_range(&mut self, range: usize) -> usize {
         let val = (self.next() & 0x7FFF) as usize;
-        val * range >> 15
+        (val * range) >> 15
     }
 }
 
@@ -356,9 +356,9 @@ impl G7231Decoder {
                                           br.read(1)?;
             let mut ppos                = br.read(13)? as usize;
             self.subframe[0].pulse_pos = ppos / 810;
-            ppos = ppos % 810;
+            ppos %= 810;
             self.subframe[1].pulse_pos = ppos / 90;
-            ppos = ppos % 90;
+            ppos %= 90;
             self.subframe[2].pulse_pos = ppos / 9;
             self.subframe[3].pulse_pos = ppos % 9;
 
@@ -438,7 +438,7 @@ impl G7231Decoder {
             } else {
                 if self.interp_index != 0 {
                     for i in 0..self.interp_index {
-                        let sample = i32::from(self.excitation[MAX_PITCH + i]) * 3 >> 2;
+                        let sample = (i32::from(self.excitation[MAX_PITCH + i]) * 3) >> 2;
                         self.synth_buf[LPC_ORDER + i] = sample as i16;
                     }
                     for i in self.interp_index..SAMPLES {
@@ -468,7 +468,7 @@ impl G7231Decoder {
         const CNG_BSEG: [i32; 3] = [ 2048, 18432, 231233 ];
         let shift = 16 - cur_gain * 2;
         let t = if shift > 0 { sid_gain << shift } else { sid_gain >> -shift };
-        let x = t * 273 >> 16;
+        let x = (t * 273) >> 16;
         if x >= CNG_BSEG[2] {
             return 63;
         }
@@ -600,19 +600,19 @@ impl G7231Decoder {
             }
             b0 = ((i64::from(b0) * 2 * 2979 + (1 << 29)) >> 30) as i32;
 
-            let mut c = self.cur_gain * (self.cur_gain * (SUBFRAME_LEN as i32) >> 5);
+            let mut c = self.cur_gain * ((self.cur_gain * (SUBFRAME_LEN as i32)) >> 5);
             if shift * 2 + 3 >= 0 {
                 c >>= shift * 2 + 3;
             } else {
                 c <<= -(shift * 2 + 3);
             }
-            c = (i64::from(clip32(sum * 2) - c) * 2979 >> 15) as i32;
+            c = ((i64::from(clip32(sum * 2) - c) * 2979) >> 15) as i32;
 
             let delta = b0 * b0 * 2 - c;
             let x = if delta <= 0 {
                     -b0
                 } else {
-                    let d0 = i32::from(square_root_i32(delta));
+                    let d0 = square_root_i32(delta);
                     let x0 = d0 - b0;
                     let t  = d0 + b0;
                     if t.abs() < x0.abs() {
@@ -624,7 +624,7 @@ impl G7231Decoder {
             let shift = shift + 1;
             let x = (if shift >= 0 { x << shift } else { x >> -shift }).min(10000).max(-10000);
             for j in 0..11 {
-                let val = x * signs[i / 2][j] >> 15;
+                let val = (x * signs[i / 2][j]) >> 15;
                 buf[pos[i / 2 * 11 + j]] = buf[pos[i / 2 * 11 + j]].saturating_add(val as i16);
             }
 
@@ -653,7 +653,7 @@ impl G7231Decoder {
         let best_energy = dot_product(&self.synth_buf[LPC_ORDER + MAX_PITCH + SUBFRAME_LEN * 2 - pos..], &self.synth_buf[LPC_ORDER + MAX_PITCH + SUBFRAME_LEN * 2 - pos..], SUBFRAME_LEN * 2);
         let best_energy = best_energy.saturating_add(1 << 15) >> 16;
 
-        let tmp = best_energy * self.sid_gain >> 3;
+        let tmp = (best_energy * self.sid_gain) >> 3;
 
         if tmp < corr_energy * corr_energy {
             self.interp_index = pos;
@@ -927,7 +927,7 @@ impl NADecoder for G7231Decoder {
         let mut bad_frame = false;
 
         let mut br = BitReader::new(src.as_slice(), BitReaderMode::LE);
-        if let Err(_) = self.unpack_frame(&mut br) {
+        if self.unpack_frame(&mut br).is_err() {
             bad_frame = true;
             self.cur_ftype = if self.prev_ftype == G7231FrameType::Active {
                     G7231FrameType::Active

diff --git a/nihav-vivo/src/codecs/mod.rs b/nihav-vivo/src/codecs/mod.rs
index b2ceb124897222fbe3ee181002d4412e497756db..62d4448f24bebcb3677464161e9fcfc809db34ce 100644 (file)
--- a/nihav-vivo/src/codecs/mod.rs
+++ b/nihav-vivo/src/codecs/mod.rs
@@ -6,10 +6,16 @@ macro_rules! validate {
 }
 
 #[cfg(any(feature="decoder_vivo1", feature="decoder_vivo2"))]
+#[allow(clippy::useless_let_if_seq)]
 mod vivo;
 #[cfg(feature="decoder_g723_1")]
+#[allow(clippy::needless_range_loop)]
+#[allow(clippy::unreadable_literal)]
+#[allow(clippy::useless_let_if_seq)]
 mod g723_1;
 #[cfg(feature="decoder_siren")]
+#[allow(clippy::approx_constant)]
+#[allow(clippy::needless_range_loop)]
 mod siren;
 
 const VIVO_CODECS: &[DecoderInfo] = &[

diff --git a/nihav-vivo/src/codecs/siren.rs b/nihav-vivo/src/codecs/siren.rs
index 3dd130c88066d90c6844c9fa6ed78b5b8a2b6b40..79c821b95da7c6048d2cf974515db3bb8d2c6136 100644 (file)
--- a/nihav-vivo/src/codecs/siren.rs
+++ b/nihav-vivo/src/codecs/siren.rs
@@ -203,9 +203,7 @@ impl SirenDecoder {
 
         self.power_cat = max_rate_cat;
 
-        for i in 0..MAX_RC {
-            self.cat_balance[i] = temp_cat[max_offset + i];
-        }
+        self.cat_balance[..MAX_RC].copy_from_slice(&temp_cat[max_offset..][..MAX_RC]);
 
         for cat in self.cat_balance.iter().take(rate_ctl) {
             self.power_cat[*cat] += 1;
@@ -228,7 +226,7 @@ impl SirenDecoder {
 
                 'vec_loop: for i in 0..num_vecs {
                     let ret             = br.read_cb(cb);
-                    if let Err(_) = ret {
+                    if ret.is_err() {
                         error = true;
                         break 'vec_loop;
                     }

diff --git a/nihav-vivo/src/codecs/vivo.rs b/nihav-vivo/src/codecs/vivo.rs
index 9c5b5d1ed1d9f0600ff8adbda6c0fc3fe6c65cfd..33de1793437a5b1086c49a4500b00657cf7445dc 100644 (file)
--- a/nihav-vivo/src/codecs/vivo.rs
+++ b/nihav-vivo/src/codecs/vivo.rs
@@ -79,7 +79,7 @@ impl<'a> VivoBR<'a> {
                 };
 
         let rl_cb = if self.aic && intra { &self.tables.aic_rl_cb } else { &self.tables.rl_cb };
-        let q = if plane_no == 0 { (quant * 2) as i16 } else { (H263_CHROMA_QUANT[quant as usize] * 2) as i16 };
+        let q = if plane_no == 0 { i16::from(quant * 2) } else { i16::from(H263_CHROMA_QUANT[quant as usize] * 2) };
         let q_add = if q == 0 || self.aic { 0i16 } else { (((q >> 1) - 1) | 1) as i16 };
         while idx < 64 {
             let code = br.read_cb(rl_cb)?;
@@ -168,6 +168,7 @@ fn decode_b_info(br: &mut BitReader, is_pb: bool, is_ipb: bool, is_intra: bool)
 impl<'a> BlockDecoder for VivoBR<'a> {
 
 #[allow(unused_variables)]
+#[allow(clippy::unreadable_literal)]
     fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> {
         let br = &mut self.br;
         let syncw = br.read(22)?;

diff --git a/nihav-vivo/src/demuxers/vivo.rs b/nihav-vivo/src/demuxers/vivo.rs
index a55bc41137e46b69c91ff318e92e6e57458b5379..a060d48da91179680a948d4642b1d5151d81d6e0 100644 (file)
--- a/nihav-vivo/src/demuxers/vivo.rs
+++ b/nihav-vivo/src/demuxers/vivo.rs
@@ -163,7 +163,7 @@ impl<'a> VivoDemuxer<'a> {
     fn parse_header_packet(&mut self, pkt: &[u8]) -> DemuxerResult<()> {
         for entry in pkt.split(|ch| *ch == 0xD) {
             if entry.len() < 3 || !entry.contains(&b':') { continue; }
-            let entry = if entry.len() > 0 && entry[0] == 0xA { &entry[1..] } else { entry };
+            let entry = if !entry.is_empty() && entry[0] == 0xA { &entry[1..] } else { entry };
             let mut split = entry.split(|ch| *ch == b':');
             let name  = split.next().unwrap();
             let value = split.next().unwrap();