question: get rtp timestamp concode_field_sep byte COMFORT_PAYLOAD concode_elem_sep int PACKETS_PER_SECOND concode_elem_sep int PCMU_SAMPLE_SIZE concode_elem_sep byte comfortNoiseLevel concode_elem_sep byte X_BIT concode_elem_sep byte MARK_BIT concode_elem_sep int HEADER_SIZE concode_elem_sep short rtpSequenceNumber concode_elem_sep int SPEEX_ENCODING concode_elem_sep byte[] buffer concode_elem_sep int MAC_SAMPLE_RATE concode_elem_sep int MAC_CHANNELS concode_elem_sep int samplesPerPacket concode_elem_sep int PCM_SAMPLE_SIZE concode_elem_sep byte PCMU_PAYLOAD concode_elem_sep int PACKET_PERIOD concode_elem_sep int dataSize concode_elem_sep int MAX_SAMPLE_RATE concode_elem_sep DatagramPacket packet concode_elem_sep int encoding concode_elem_sep byte CHANGE_MEDIA_PAYLOAD concode_elem_sep int sampleRate concode_elem_sep byte defaultNoiseLevel concode_elem_sep int size concode_elem_sep int channels concode_elem_sep int PCM_ENCODING concode_elem_sep int PCMU_ENCODING concode_elem_sep long rtpTimestamp concode_elem_sep int MAX_CHANNELS concode_elem_sep int DATA concode_elem_sep byte DTMF_END_BIT concode_elem_sep int bufferSize concode_field_sep short getRtpSequenceNumber concode_elem_sep int getMaxDataSize concode_elem_sep void setMark concode_elem_sep void setX concode_elem_sep int getSamplesPerPacket concode_elem_sep void clearMark concode_elem_sep byte getComfortNoiseLevel concode_elem_sep void setRtpTimestamp concode_elem_sep byte[] getData concode_elem_sep void setBuffer concode_elem_sep int getLinearLength concode_elem_sep byte getDefaultComfortNoiseLevel concode_elem_sep void setSocketAddress concode_elem_sep boolean isDtmfEndSet concode_elem_sep void setRtpSequenceNumber concode_elem_sep DatagramPacket getDatagramPacket concode_elem_sep void setRtpPayload concode_elem_sep boolean getX concode_elem_sep void setLength concode_elem_sep double getVolumeLevel concode_elem_sep SocketAddress getSocketAddress concode_elem_sep int getSynchronizationSource concode_elem_sep byte getRtpPayload concode_elem_sep int getLength concode_elem_sep void setDefaultComfortNoiseLevel concode_elem_sep int getDataSize concode_elem_sep int getDataSize concode_elem_sep boolean isMarkSet concode_elem_sep void setSynchronizationSource
target: long function ( ) { long loc0 = ( long ) ( ( ( ( ( long ) ( buffer [ 4 ] & 0xff ) ) << 24 ) & 0xff000000 ) | ( ( ( ( long ) ( buffer [ 5 ] & 0xff ) ) << 16 ) & 0x00ff0000 ) | ( ( ( ( long ) ( buffer [ 6 ] & 0xff ) ) << 8 ) & 0x0000ff00 ) | ( ( long ) ( buffer [ 7 ] & 0xff ) ) ) & 0xffffffff ; return loc0 ; }