Round packed signal length up to nearest byte.

bemasher · May 19, 2018 · cbd4df4 · cbd4df4
1 parent 19cf823
commit cbd4df4
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/decode/decode.go b/decode/decode.go
@@ -110,7 +110,7 @@ func NewDecoder(cfg PacketConfig) (d Decoder) {
 	d.sIdxA = make([]int, 0, d.Cfg.BlockSize)
 	d.sIdxB = make([]int, 0, d.Cfg.BlockSize)
 
-	d.packed = make([]byte, (d.Cfg.BlockSize+d.Cfg.PreambleLength)>>3)
+	d.packed = make([]byte, (d.Cfg.BlockSize+d.Cfg.PreambleLength+7)>>3)
 
 	return
 }

diff --git a/decode/decode_test.go b/decode/decode_test.go
@@ -16,6 +16,20 @@ func NewPacketConfig(chipLength int) (cfg PacketConfig) {
 	return
 }
 
+func TestSymbolLength(t *testing.T) {
+	for idx := 7; idx <= 72; idx++ {
+		d := NewDecoder(NewPacketConfig(idx))
+		pLen := d.Cfg.BlockSize + d.Cfg.PreambleLength
+		t.Logf("%d: %d/8 = %0.2f (%d)\n", idx, pLen, float64(pLen)/8.0, len(d.packed))
+
+		block := make([]byte, d.Cfg.BlockSize2)
+		d.Decode(block)
+		d.Decode(block)
+		d.Decode(block)
+		d.Decode(block)
+	}
+}
+
 func BenchmarkMagLUT(b *testing.B) {
 	d := NewDecoder(NewPacketConfig(72))