/***************************************************************************************
 *
 *  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
 *
 *  By downloading, copying, installing or using the software you agree to this license.
 *  If you do not agree to this license, do not download, install, 
 *  copy or use the software.
 *
 *  Copyright (C) 2014-2024, Happytimesoft Corporation, all rights reserved.
 *
 *  Redistribution and use in binary forms, with or without modification, are permitted.
 *
 *  Unless required by applicable law or agreed to in writing, software distributed 
 *  under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 *  CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
 *  language governing permissions and limitations under the License.
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****************************************************************************************/

#include "sys_inc.h"
#include "rtp.h"


uint16 rtp_read_uint16(uint8 *input)
{
    return (uint16)((input[0] << 8) | input[1]);
}

uint32 rtp_read_uint32(uint8 *input)
{
    return (uint32)((input[0] << 24) | (input[1] << 16) | (input[2] << 8) | input[3]);
}

uint64 rtp_read_uint64(uint8 *input)
{
    uint32 low = rtp_read_uint32(input);
    uint32 high = rtp_read_uint32(input+4);
    return (uint64)(((uint64)low) << 32 | high);
}

int rtp_write_uint16(uint8 *output, uint16 nVal)
{
    output[1] = nVal & 0xff;
    output[0] = nVal >> 8;

    return 2;
}

int rtp_write_uint32(uint8 *output, uint32 nVal)
{
    output[3] = nVal & 0xff;
    output[2] = nVal >> 8;
    output[1] = nVal >> 16;
    output[0] = nVal >> 24;

    return 4;
}