Method writeUBits

src/codec/utils/EncodeStream.cpp:196–215

}

void EncodeStream::writeUBits(uint32_t value, uint8_t numBits) {
  static const uint8_t bitMasks[9] = {0, 1, 3, 7, 15, 31, 63, 127, 255};
  auto bytesToWrite = BitsToBytes(_bitPosition + numBits) - _position;
  if (!checkCapacity(bytesToWrite)) {
    return;
  }
  while (numBits > 0) {
    auto bytePosition = static_cast<uint32_t>(_bitPosition / 8);
    auto bitPosition = static_cast<uint32_t>(_bitPosition % 8);
    auto& byte = bytes[bytePosition];
    byte &= bitMasks[bitPosition];
    auto bitLength = std::min(8 - bitPosition, static_cast<uint32_t>(numBits));
    auto bits = static_cast<uint8_t>(value) & bitMasks[bitLength];
    byte |= (bits << bitPosition);
    value >>= bitLength;
    numBits -= bitLength;
    _bitPosition += bitLength;
  }
  bitPositionChanged(0);
}

uint8_t GetBitLength(uint32_t data) {
  uint8_t length = 32;