codec/h264/h264dec/bits/bitreader.go: added ReadBool and ReadBitsInt methods

codec/h264/decode/bits/bitreader.go

@@ -128,6 +128,24 @@ func (br *BitReader) ReadBits(n int) (uint64, error) {
 	return r, nil
 }
 
+// ReadBitsInt reads n bits from the source, and returns as an int.
+func (br *BitReader) ReadBitsInt(n int) (int, error) {
+	b, err := br.ReadBits(n)
+	if err != nil {
+		return 0, err
+	}
+	return int(b), nil
+}
+
+// ReadBool reads a single bit from the source, converts to a bool and returns.
+func (br *BitReader) ReadBool() (bool, error) {
+	b, err := br.ReadBits(1)
+	if err != nil {
+		return false, err
+	}
+	return b == 1, nil
+}
+
 // PeekBits provides the next n bits returning them in the least-significant
 // part of a uint64, without advancing through the source.
 // For example, with a source as []byte{0x8f,0xe3} (1000 1111, 1110 0011), we