/*
 *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

// ReleaseTest-API.cpp : Defines the entry point for the console application.
//

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <iostream>

/* include API */
#include "modules/audio_coding/codecs/isac/main/include/isac.h"
#include "modules/audio_coding/codecs/isac/main/util/utility.h"
#include "rtc_base/format_macros.h"

/* Defines */
#define SEED_FILE                                             \
  "randseed.txt" /* Used when running decoder on garbage data \
                  */
#define MAX_FRAMESAMPLES                                         \
  960                         /* max number of samples per frame \
                                 (= 60 ms frame & 16 kHz) or     \
                                 (= 30 ms frame & 32 kHz) */
#define FRAMESAMPLES_10ms 160 /* number of samples per 10ms frame */
#define SWBFRAMESAMPLES_10ms 320
//#define FS 16000 /* sampling frequency (Hz) */

#ifdef WIN32
#ifndef CLOCKS_PER_SEC
#define CLOCKS_PER_SEC 1000 /* Runtime statistics */
#endif
#endif

int main(int argc, char* argv[]) {
  char inname[100], outname[100], bottleneck_file[100], vadfile[100];
  FILE *inp, *outp, *f_bn = NULL, *vadp = NULL, *bandwidthp;
  int framecnt, endfile;

  size_t i;
  int errtype, VADusage = 0, packetLossPercent = 0;
  int16_t CodingMode;
  int32_t bottleneck = 0;
  int framesize = 30; /* ms */
  int cur_framesmpls, err;

  /* Runtime statistics */
  double starttime, runtime, length_file;

  size_t stream_len = 0;
  int declen = 0, declenTC = 0;
  bool lostFrame = false;

  int16_t shortdata[SWBFRAMESAMPLES_10ms];
  int16_t vaddata[SWBFRAMESAMPLES_10ms * 3];
  int16_t decoded[MAX_FRAMESAMPLES << 1];
  int16_t decodedTC[MAX_FRAMESAMPLES << 1];
  uint16_t streamdata[500];
  int16_t speechType[1];
  int16_t rateBPS = 0;
  int16_t fixedFL = 0;
  int16_t payloadSize = 0;
  int32_t payloadRate = 0;
  int setControlBWE = 0;
  short FL, testNum;
  char version_number[20];
  FILE* plFile;
  int32_t sendBN;

#if !defined(NDEBUG)
  FILE* fy;
  double kbps;
#endif
  size_t totalbits = 0;
  int totalsmpls = 0;

  /* If use GNS file */
  FILE* fp_gns = NULL;
  char gns_file[100];
  size_t maxStreamLen30 = 0;
  size_t maxStreamLen60 = 0;
  short sampFreqKHz = 32;
  short samplesIn10Ms;
  short useAssign = 0;
  // FILE logFile;
  bool doTransCoding = false;
  int32_t rateTransCoding = 0;
  uint8_t streamDataTransCoding[1200];
  size_t streamLenTransCoding = 0;
  FILE* transCodingFile = NULL;
  FILE* transcodingBitstream = NULL;
  size_t numTransCodingBytes = 0;

  /* only one structure used for ISAC encoder */
  ISACStruct* ISAC_main_inst = NULL;
  ISACStruct* decoderTransCoding = NULL;

  BottleNeckModel BN_data;

#if !defined(NDEBUG)
  fy = fopen("bit_rate.dat", "w");
  fclose(fy);
  fy = fopen("bytes_frames.dat", "w");
  fclose(fy);
#endif

  /* Handling wrong input arguments in the command line */
  if ((argc < 3) || (argc > 17)) {
    printf("\n\nWrong number of arguments or flag values.\n\n");

    printf("\n");
    WebRtcIsac_version(version_number);
    printf("iSAC-swb version %s \n\n", version_number);

    printf("Usage:\n\n");
    printf("%s [-I] bottleneck_value infile outfile \n\n", argv[0]);
    printf("with:\n");
    printf("[-FS num]       : sampling frequency in kHz, valid values are\n");
    printf("                  16 & 32, with 16 as default.\n");
    printf("[-I]            : if -I option is specified, the coder will use\n");
    printf("                  an instantaneous Bottleneck value. If not, it\n");
    printf("                  will be an adaptive Bottleneck value.\n");
    printf("[-assign]       : Use Assign API.\n");
    printf("[-B num]        : the value of the bottleneck provided either\n");
    printf("                  as a fixed value in bits/sec (e.g. 25000) or\n");
    printf("                  read from a file (e.g. bottleneck.txt)\n");
    printf("[-INITRATE num] : Set a new value for initial rate. Note! Only\n");
    printf("                  used in adaptive mode.\n");
    printf("[-FL num]       : Set (initial) frame length in msec. Valid\n");
    printf("                  lengths are 30 and 60 msec.\n");
    printf("[-FIXED_FL]     : Frame length will be fixed to initial value.\n");
    printf("[-MAX num]      : Set the limit for the payload size of iSAC\n");
    printf("                  in bytes. Minimum 100 maximum 400.\n");
    printf("[-MAXRATE num]  : Set the maxrate for iSAC in bits per second.\n");
    printf("                  Minimum 32000, maximum 53400.\n");
    printf("[-F num]        : if -F option is specified, the test function\n");
    printf("                  will run the iSAC API fault scenario\n");
    printf("                  specified by the supplied number.\n");
    printf("                  F 1 - Call encoder prior to init encoder call\n");
    printf("                  F 2 - Call decoder prior to init decoder call\n");
    printf("                  F 3 - Call decoder prior to encoder call\n");
    printf("                  F 4 - Call decoder with a too short coded\n");
    printf("                        sequence\n");
    printf("                  F 5 - Call decoder with a too long coded\n");
    printf("                        sequence\n");
    printf("                  F 6 - Call decoder with random bit stream\n");
    printf("                  F 7 - Call init encoder/decoder at random\n");
    printf("                        during a call\n");
    printf("                  F 8 - Call encoder/decoder without having\n");
    printf("                        allocated memory for encoder/decoder\n");
    printf("                        instance\n");
    printf("                  F 9 - Call decodeB without calling decodeA\n");
    printf("                  F 10 - Call decodeB with garbage data\n");
    printf("[-PL num]       : if -PL option is specified \n");
    printf("[-T rate file]  : test trans-coding with target bottleneck\n");
    printf("                  'rate' bits/sec\n");
    printf("                  the output file is written to 'file'\n");
    printf("[-LOOP num]     : number of times to repeat coding the input\n");
    printf("                  file for stress testing\n");
    // printf("[-CE num]       : Test of APIs used by Conference Engine.\n");
    // printf("                  CE 1 - getNewBitstream, getBWE \n");
    // printf("                  (CE 2 - RESERVED for transcoding)\n");
    // printf("                  CE 3 - getSendBWE, setSendBWE.  \n");
    // printf("-L filename     : write the logging info into file
    // (appending)\n");
    printf("infile          :   Normal speech input file\n");
    printf("outfile         :   Speech output file\n");
    exit(0);
  }

  /* Print version number */
  printf("-------------------------------------------------\n");
  WebRtcIsac_version(version_number);
  printf("iSAC version %s \n\n", version_number);

  /* Loop over all command line arguments */
  CodingMode = 0;
  testNum = 0;
  useAssign = 0;
  // logFile = NULL;
  char transCodingFileName[500];
  int16_t totFileLoop = 0;
  int16_t numFileLoop = 0;
  for (i = 1; i + 2 < static_cast<size_t>(argc); i++) {
    if (!strcmp("-LOOP", argv[i])) {
      i++;
      totFileLoop = (int16_t)atol(argv[i]);
      if (totFileLoop <= 0) {
        fprintf(stderr, "Invalid number of runs for the given input file, %d.",
                totFileLoop);
        exit(0);
      }
    }

    if (!strcmp("-T", argv[i])) {
      doTransCoding = true;
      i++;
      rateTransCoding = atoi(argv[i]);
      i++;
      strcpy(transCodingFileName, argv[i]);
    }

    /*Should we use assign API*/
    if (!strcmp("-assign", argv[i])) {
      useAssign = 1;
    }

    /* Set Sampling Rate */
    if (!strcmp("-FS", argv[i])) {
      i++;
      sampFreqKHz = atoi(argv[i]);
    }

    /* Instantaneous mode */
    if (!strcmp("-I", argv[i])) {
      printf("Instantaneous BottleNeck\n");
      CodingMode = 1;
    }

    /* Set (initial) bottleneck value */
    if (!strcmp("-INITRATE", argv[i])) {
      rateBPS = atoi(argv[i + 1]);
      setControlBWE = 1;
      if ((rateBPS < 10000) || (rateBPS > 32000)) {
        printf(
            "\n%d is not a initial rate. Valid values are in the range "
            "10000 to 32000.\n",
            rateBPS);
        exit(0);
      }
      printf("New initial rate: %d\n", rateBPS);
      i++;
    }

    /* Set (initial) framelength */
    if (!strcmp("-FL", argv[i])) {
      framesize = atoi(argv[i + 1]);
      if ((framesize != 30) && (framesize != 60)) {
        printf(
            "\n%d is not a valid frame length. Valid length are 30 and 60 "
            "msec.\n",
            framesize);
        exit(0);
      }
      setControlBWE = 1;
      printf("Frame Length: %d\n", framesize);
      i++;
    }

    /* Fixed frame length */
    if (!strcmp("-FIXED_FL", argv[i])) {
      fixedFL = 1;
      setControlBWE = 1;
      printf("Fixed Frame Length\n");
    }

    /* Set maximum allowed payload size in bytes */
    if (!strcmp("-MAX", argv[i])) {
      payloadSize = atoi(argv[i + 1]);
      printf("Maximum Payload Size: %d\n", payloadSize);
      i++;
    }

    /* Set maximum rate in bytes */
    if (!strcmp("-MAXRATE", argv[i])) {
      payloadRate = atoi(argv[i + 1]);
      printf("Maximum Rate in kbps: %d\n", payloadRate);
      i++;
    }

    /* Test of fault scenarious */
    if (!strcmp("-F", argv[i])) {
      testNum = atoi(argv[i + 1]);
      printf("Fault test: %d\n", testNum);
      if (testNum < 1 || testNum > 10) {
        printf(
            "\n%d is not a valid Fault Scenario number. Valid Fault "
            "Scenarios are numbered 1-10.\n",
            testNum);
        exit(0);
      }
      i++;
    }

    /* Packet loss test */
    if (!strcmp("-PL", argv[i])) {
      if (isdigit(*argv[i + 1])) {
        packetLossPercent = atoi(argv[i + 1]);
        if ((packetLossPercent < 0) | (packetLossPercent > 100)) {
          printf("\nInvalid packet loss perentage \n");
          exit(0);
        }
        if (packetLossPercent > 0) {
          printf("Simulating %d %% of independent packet loss\n",
                 packetLossPercent);
        } else {
          printf("\nNo Packet Loss Is Simulated \n");
        }
      } else {
        plFile = fopen(argv[i + 1], "rb");
        if (plFile == NULL) {
          printf("\n couldn't open the frameloss file: %s\n", argv[i + 1]);
          exit(0);
        }
        printf("Simulating packet loss through the given channel file: %s\n",
               argv[i + 1]);
      }
      i++;
    }

    /* Random packetlosses */
    if (!strcmp("-rnd", argv[i])) {
      srand((unsigned int)time(NULL));
      printf("Random pattern in lossed packets \n");
    }

    /* Use gns file */
    if (!strcmp("-G", argv[i])) {
      sscanf(argv[i + 1], "%s", gns_file);
      fp_gns = fopen(gns_file, "rb");
      if (fp_gns == NULL) {
        printf("Cannot read file %s.\n", gns_file);
        exit(0);
      }
      i++;
    }

    // make it with '-B'
    /* Get Bottleneck value */
    if (!strcmp("-B", argv[i])) {
      i++;
      bottleneck = atoi(argv[i]);
      if (bottleneck == 0) {
        sscanf(argv[i], "%s", bottleneck_file);
        f_bn = fopen(bottleneck_file, "rb");
        if (f_bn == NULL) {
          printf(
              "Error No value provided for BottleNeck and cannot read file "
              "%s.\n",
              bottleneck_file);
          exit(0);
        } else {
          printf("reading bottleneck rates from file %s\n\n", bottleneck_file);
          if (fscanf(f_bn, "%d", &bottleneck) == EOF) {
            /* Set pointer to beginning of file */
            fseek(f_bn, 0L, SEEK_SET);
            if (fscanf(f_bn, "%d", &bottleneck) == EOF) {
              exit(0);
            }
          }

          /* Bottleneck is a cosine function
           * Matlab code for writing the bottleneck file:
           * BottleNeck_10ms = 20e3 + 10e3 * cos((0:5999)/5999*2*pi);
           * fid = fopen('bottleneck.txt', 'wb');
           * fprintf(fid, '%d\n', BottleNeck_10ms); fclose(fid);
           */
        }
      } else {
        printf("\nfixed bottleneck rate of %d bits/s\n\n", bottleneck);
      }
    }
    /* Run Conference Engine APIs */
    //     Do not test it in the first release
    //
    //     if(!strcmp ("-CE", argv[i]))
    //     {
    //         testCE = atoi(argv[i + 1]);
    //         if(testCE==1)
    //         {
    //             i++;
    //             scale = (float)atof( argv[i+1] );
    //         }
    //         else if(testCE == 2)
    //         {
    //             printf("\nCE-test 2 (transcoding) not implemented.\n");
    //             exit(0);
    //         }
    //         else if(testCE < 1 || testCE > 3)
    //         {
    //             printf("\n%d is not a valid CE-test number. Valid CE tests
    //             are 1-3.\n", testCE);
    //             exit(0);
    //         }
    //         printf("CE-test number: %d\n", testCE);
    //         i++;
    //     }
  }

  if (CodingMode == 0) {
    printf("\nAdaptive BottleNeck\n");
  }

  switch (sampFreqKHz) {
    case 16: {
      printf("iSAC Wideband.\n");
      samplesIn10Ms = FRAMESAMPLES_10ms;
      break;
    }
    case 32: {
      printf("iSAC Supper-Wideband.\n");
      samplesIn10Ms = SWBFRAMESAMPLES_10ms;
      break;
    }
    default:
      printf("Unsupported sampling frequency %d kHz", sampFreqKHz);
      exit(0);
  }

  /* Get Input and Output files */
  sscanf(argv[argc - 2], "%s", inname);
  sscanf(argv[argc - 1], "%s", outname);
  printf("\nInput file: %s\n", inname);
  printf("Output file: %s\n\n", outname);
  if ((inp = fopen(inname, "rb")) == NULL) {
    printf("  Error iSAC Cannot read file %s.\n", inname);
    std::cout << std::flush;
    exit(1);
  }

  if ((outp = fopen(outname, "wb")) == NULL) {
    printf("  Error iSAC Cannot write file %s.\n", outname);
    std::cout << std::flush;
    getc(stdin);
    exit(1);
  }
  if (VADusage) {
    if ((vadp = fopen(vadfile, "rb")) == NULL) {
      printf("  Error iSAC Cannot read file %s.\n", vadfile);
      std::cout << std::flush;
      exit(1);
    }
  }

  if ((bandwidthp = fopen("bwe.pcm", "wb")) == NULL) {
    printf("  Error iSAC Cannot read file %s.\n", "bwe.pcm");
    std::cout << std::flush;
    exit(1);
  }

  starttime = clock() / (double)CLOCKS_PER_SEC; /* Runtime statistics */

  /* Initialize the ISAC and BN structs */
  if (testNum != 8) {
    if (!useAssign) {
      err = WebRtcIsac_Create(&ISAC_main_inst);
      WebRtcIsac_SetEncSampRate(ISAC_main_inst, sampFreqKHz * 1000);
      WebRtcIsac_SetDecSampRate(ISAC_main_inst,
                                sampFreqKHz >= 32 ? 32000 : 16000);
    } else {
      /* Test the Assign functions */
      int sss;
      void* ppp;
      err = WebRtcIsac_AssignSize(&sss);
      ppp = malloc(sss);
      err = WebRtcIsac_Assign(&ISAC_main_inst, ppp);
      WebRtcIsac_SetEncSampRate(ISAC_main_inst, sampFreqKHz * 1000);
      WebRtcIsac_SetDecSampRate(ISAC_main_inst,
                                sampFreqKHz >= 32 ? 32000 : 16000);
    }
    /* Error check */
    if (err < 0) {
      printf("\n\n Error in create.\n\n");
      std::cout << std::flush;
      exit(EXIT_FAILURE);
    }
  }
  BN_data.arrival_time = 0;
  BN_data.sample_count = 0;
  BN_data.rtp_number = 0;

  /* Initialize encoder and decoder */
  framecnt = 0;
  endfile = 0;

  if (doTransCoding) {
    WebRtcIsac_Create(&decoderTransCoding);
    WebRtcIsac_SetEncSampRate(decoderTransCoding, sampFreqKHz * 1000);
    WebRtcIsac_SetDecSampRate(decoderTransCoding,
                              sampFreqKHz >= 32 ? 32000 : 16000);
    WebRtcIsac_DecoderInit(decoderTransCoding);
    transCodingFile = fopen(transCodingFileName, "wb");
    if (transCodingFile == NULL) {
      printf("Could not open %s to output trans-coding.\n",
             transCodingFileName);
      exit(0);
    }
    strcat(transCodingFileName, ".bit");
    transcodingBitstream = fopen(transCodingFileName, "wb");
    if (transcodingBitstream == NULL) {
      printf("Could not open %s to write the bit-stream of transcoder.\n",
             transCodingFileName);
      exit(0);
    }
  }

  if (testNum != 1) {
    if (WebRtcIsac_EncoderInit(ISAC_main_inst, CodingMode) < 0) {
      printf("Error could not initialize the encoder \n");
      std::cout << std::flush;
      return 0;
    }
  }
  if (testNum != 2)
    WebRtcIsac_DecoderInit(ISAC_main_inst);
  if (CodingMode == 1) {
    err = WebRtcIsac_Control(ISAC_main_inst, bottleneck, framesize);
    if (err < 0) {
      /* exit if returned with error */
      errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
      printf("\n\n Error in initialization (control): %d.\n\n", errtype);
      std::cout << std::flush;
      if (testNum == 0) {
        exit(EXIT_FAILURE);
      }
    }
  }

  if ((setControlBWE) && (CodingMode == 0)) {
    err = WebRtcIsac_ControlBwe(ISAC_main_inst, rateBPS, framesize, fixedFL);
    if (err < 0) {
      /* exit if returned with error */
      errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);

      printf("\n\n Error in Control BWE: %d.\n\n", errtype);
      std::cout << std::flush;
      exit(EXIT_FAILURE);
    }
  }

  if (payloadSize != 0) {
    err = WebRtcIsac_SetMaxPayloadSize(ISAC_main_inst, payloadSize);
    if (err < 0) {
      /* exit if returned with error */
      errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
      printf("\n\n Error in SetMaxPayloadSize: %d.\n\n", errtype);
      std::cout << std::flush;
      exit(EXIT_FAILURE);
    }
  }
  if (payloadRate != 0) {
    err = WebRtcIsac_SetMaxRate(ISAC_main_inst, payloadRate);
    if (err < 0) {
      /* exit if returned with error */
      errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
      printf("\n\n Error in SetMaxRateInBytes: %d.\n\n", errtype);
      std::cout << std::flush;
      exit(EXIT_FAILURE);
    }
  }

  *speechType = 1;

  std::cout << "\n" << std::flush;

  length_file = 0;
  int16_t bnIdxTC = 0;
  int16_t jitterInfoTC = 0;
  while (endfile == 0) {
    /* Call init functions at random, fault test number 7 */
    if (testNum == 7 && (rand() % 2 == 0)) {
      err = WebRtcIsac_EncoderInit(ISAC_main_inst, CodingMode);
      /* Error check */
      if (err < 0) {
        errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
        printf("\n\n Error in encoderinit: %d.\n\n", errtype);
        std::cout << std::flush;
      }

      WebRtcIsac_DecoderInit(ISAC_main_inst);
    }

    cur_framesmpls = 0;
    while (1) {
      int stream_len_int = 0;

      /* Read 10 ms speech block */
      endfile = readframe(shortdata, inp, samplesIn10Ms);

      if (endfile) {
        numFileLoop++;
        if (numFileLoop < totFileLoop) {
          rewind(inp);
          framecnt = 0;
          fprintf(stderr, "\n");
          endfile = readframe(shortdata, inp, samplesIn10Ms);
        }
      }

      if (testNum == 7) {
        srand((unsigned int)time(NULL));
      }

      /* iSAC encoding */
      if (!(testNum == 3 && framecnt == 0)) {
        stream_len_int =
            WebRtcIsac_Encode(ISAC_main_inst, shortdata, (uint8_t*)streamdata);
        if ((payloadSize != 0) && (stream_len_int > payloadSize)) {
          if (testNum == 0) {
            printf("\n\n");
          }

          printf("\nError: Streamsize out of range %d\n",
                 stream_len_int - payloadSize);
          std::cout << std::flush;
        }

        WebRtcIsac_GetUplinkBw(ISAC_main_inst, &sendBN);

        if (stream_len_int > 0) {
          if (doTransCoding) {
            int16_t indexStream;
            uint8_t auxUW8;

            /******************** Main Transcoding stream ********************/
            WebRtcIsac_GetDownLinkBwIndex(ISAC_main_inst, &bnIdxTC,
                                          &jitterInfoTC);
            int streamLenTransCoding_int = WebRtcIsac_GetNewBitStream(
                ISAC_main_inst, bnIdxTC, jitterInfoTC, rateTransCoding,
                streamDataTransCoding, false);
            if (streamLenTransCoding_int < 0) {
              fprintf(stderr, "Error in trans-coding\n");
              exit(0);
            }
            streamLenTransCoding =
                static_cast<size_t>(streamLenTransCoding_int);
            auxUW8 = (uint8_t)(((streamLenTransCoding & 0xFF00) >> 8) & 0x00FF);
            if (fwrite(&auxUW8, sizeof(uint8_t), 1, transcodingBitstream) !=
                1) {
              return -1;
            }

            auxUW8 = (uint8_t)(streamLenTransCoding & 0x00FF);
            if (fwrite(&auxUW8, sizeof(uint8_t), 1, transcodingBitstream) !=
                1) {
              return -1;
            }

            if (fwrite(streamDataTransCoding, sizeof(uint8_t),
                       streamLenTransCoding,
                       transcodingBitstream) != streamLenTransCoding) {
              return -1;
            }

            WebRtcIsac_ReadBwIndex(streamDataTransCoding, &indexStream);
            if (indexStream != bnIdxTC) {
              fprintf(stderr,
                      "Error in inserting Bandwidth index into transcoding "
                      "stream.\n");
              exit(0);
            }
            numTransCodingBytes += streamLenTransCoding;
          }
        }
      } else {
        break;
      }

      if (stream_len_int < 0) {
        /* exit if returned with error */
        errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
        fprintf(stderr, "Error in encoder: %d.\n", errtype);
        std::cout << std::flush;
        exit(0);
      }
      stream_len = static_cast<size_t>(stream_len_int);

      cur_framesmpls += samplesIn10Ms;
      /* exit encoder loop if the encoder returned a bitstream */
      if (stream_len != 0)
        break;
    }

    /* read next bottleneck rate */
    if (f_bn != NULL) {
      if (fscanf(f_bn, "%d", &bottleneck) == EOF) {
        /* Set pointer to beginning of file */
        fseek(f_bn, 0L, SEEK_SET);
        if (fscanf(f_bn, "%d", &bottleneck) == EOF) {
          exit(0);
        }
      }
      if (CodingMode == 1) {
        WebRtcIsac_Control(ISAC_main_inst, bottleneck, framesize);
      }
    }

    length_file += cur_framesmpls;
    if (cur_framesmpls == (3 * samplesIn10Ms)) {
      maxStreamLen30 =
          (stream_len > maxStreamLen30) ? stream_len : maxStreamLen30;
    } else {
      maxStreamLen60 =
          (stream_len > maxStreamLen60) ? stream_len : maxStreamLen60;
    }

    if (!lostFrame) {
      lostFrame = ((rand() % 100) < packetLossPercent);
    } else {
      lostFrame = false;
    }

    // RED.
    if (lostFrame) {
      int stream_len_int = WebRtcIsac_GetRedPayload(
          ISAC_main_inst, reinterpret_cast<uint8_t*>(streamdata));
      if (stream_len_int < 0) {
        fprintf(stderr, "Error getting RED payload\n");
        exit(0);
      }
      stream_len = static_cast<size_t>(stream_len_int);

      if (doTransCoding) {
        int streamLenTransCoding_int = WebRtcIsac_GetNewBitStream(
            ISAC_main_inst, bnIdxTC, jitterInfoTC, rateTransCoding,
            streamDataTransCoding, true);
        if (streamLenTransCoding_int < 0) {
          fprintf(stderr, "Error in RED trans-coding\n");
          exit(0);
        }
        streamLenTransCoding = static_cast<size_t>(streamLenTransCoding_int);
      }
    }

    /* make coded sequence to short be inreasing */
    /* the length the decoder expects */
    if (testNum == 4) {
      stream_len += 10;
    }

    /* make coded sequence to long be decreasing */
    /* the length the decoder expects */
    if (testNum == 5) {
      stream_len -= 10;
    }

    if (testNum == 6) {
      srand((unsigned int)time(NULL));
      for (i = 0; i < stream_len; i++) {
        streamdata[i] = rand();
      }
    }

    if (VADusage) {
      readframe(vaddata, vadp, samplesIn10Ms * 3);
    }

    /* simulate packet handling through NetEq and the modem */
    if (!(testNum == 3 && framecnt == 0)) {
      get_arrival_time(cur_framesmpls, stream_len, bottleneck, &BN_data,
                       sampFreqKHz * 1000, sampFreqKHz * 1000);
    }

    if (VADusage && (framecnt > 10 && vaddata[0] == 0)) {
      BN_data.rtp_number--;
    } else {
      /* Error test number 10, garbage data */
      if (testNum == 10) {
        /* Test to run decoder with garbage data */
        for (i = 0; i < stream_len; i++) {
          streamdata[i] = (short)(streamdata[i]) + (short)rand();
        }
      }

      if (testNum != 9) {
        err = WebRtcIsac_UpdateBwEstimate(
            ISAC_main_inst, reinterpret_cast<const uint8_t*>(streamdata),
            stream_len, BN_data.rtp_number, BN_data.sample_count,
            BN_data.arrival_time);

        if (err < 0) {
          /* exit if returned with error */
          errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
          if (testNum == 0) {
            printf("\n\n");
          }

          printf("Error: in decoder: %d.", errtype);
          std::cout << std::flush;
          if (testNum == 0) {
            printf("\n\n");
          }
        }
      }

      /* Call getFramelen, only used here for function test */
      err = WebRtcIsac_ReadFrameLen(
          ISAC_main_inst, reinterpret_cast<const uint8_t*>(streamdata), &FL);
      if (err < 0) {
        /* exit if returned with error */
        errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
        if (testNum == 0) {
          printf("\n\n");
        }
        printf("    Error: in getFrameLen %d.", errtype);
        std::cout << std::flush;
        if (testNum == 0) {
          printf("\n\n");
        }
      }

      // iSAC decoding

      if (lostFrame) {
        declen = WebRtcIsac_DecodeRcu(
            ISAC_main_inst, reinterpret_cast<const uint8_t*>(streamdata),
            stream_len, decoded, speechType);

        if (doTransCoding) {
          declenTC =
              WebRtcIsac_DecodeRcu(decoderTransCoding, streamDataTransCoding,
                                   streamLenTransCoding, decodedTC, speechType);
        }
      } else {
        declen = WebRtcIsac_Decode(ISAC_main_inst,
                                   reinterpret_cast<const uint8_t*>(streamdata),
                                   stream_len, decoded, speechType);
        if (doTransCoding) {
          declenTC =
              WebRtcIsac_Decode(decoderTransCoding, streamDataTransCoding,
                                streamLenTransCoding, decodedTC, speechType);
        }
      }

      if (declen < 0) {
        /* exit if returned with error */
        errtype = WebRtcIsac_GetErrorCode(ISAC_main_inst);
        if (testNum == 0) {
          printf("\n\n");
        }
        printf("    Error: in decoder %d.", errtype);
        std::cout << std::flush;
        if (testNum == 0) {
          printf("\n\n");
        }
      }

      if (declenTC < 0) {
        if (testNum == 0) {
          printf("\n\n");
        }
        printf("    Error: in decoding the transcoded stream");
        std::cout << std::flush;
        if (testNum == 0) {
          printf("\n\n");
        }
      }
    }
    /* Write decoded speech frame to file */
    if ((declen > 0) && (numFileLoop == 0)) {
      if (fwrite(decoded, sizeof(int16_t), declen, outp) !=
          static_cast<size_t>(declen)) {
        return -1;
      }
    }

    if ((declenTC > 0) && (numFileLoop == 0)) {
      if (fwrite(decodedTC, sizeof(int16_t), declen, transCodingFile) !=
          static_cast<size_t>(declen)) {
        return -1;
      }
    }

    fprintf(stderr, "\rframe = %5d  ", framecnt);
    fflush(stderr);
    framecnt++;

    /* Error test number 10, garbage data */
    // if (testNum == 10)
    // {
    //   /* Test to run decoder with garbage data */
    //   if ((seedfile = fopen(SEED_FILE, "a+t")) == NULL) {
    //     fprintf(stderr, "Error: Could not open file %s\n", SEED_FILE);
    //   } else {
    //     fprintf(seedfile, "ok\n\n");
    //     fclose(seedfile);
    //   }
    // }
    /* Error test number 10, garbage data */
    // if (testNum == 10) {
    //   /* Test to run decoder with garbage data */
    //   for (i = 0; i < stream_len; i++) {
    //     streamdata[i] = (short) (streamdata[i] + (short) rand());
    //   }
    // }

    totalsmpls += declen;
    totalbits += 8 * stream_len;
#if !defined(NDEBUG)
    kbps = ((double)sampFreqKHz * 1000.) / ((double)cur_framesmpls) * 8.0 *
           stream_len / 1000.0;  // kbits/s
    fy = fopen("bit_rate.dat", "a");
    fprintf(fy, "Frame %i = %0.14f\n", framecnt, kbps);
    fclose(fy);

#endif
  }
  printf("\n");
  printf("total bits               = %" PRIuS " bits\n", totalbits);
  printf("measured average bitrate = %0.3f kbits/s\n",
         (double)totalbits * (sampFreqKHz) / totalsmpls);
  if (doTransCoding) {
    printf("Transcoding average bit-rate = %0.3f kbps\n",
           (double)numTransCodingBytes * 8.0 * (sampFreqKHz) / totalsmpls);
    fclose(transCodingFile);
  }
  printf("\n");

  /* Runtime statistics */
  runtime = (double)(clock() / (double)CLOCKS_PER_SEC - starttime);
  length_file = length_file / (sampFreqKHz * 1000.);

  printf("\n\nLength of speech file: %.1f s\n", length_file);
  printf("Time to run iSAC:      %.2f s (%.2f %% of realtime)\n\n", runtime,
         (100 * runtime / length_file));

  if (maxStreamLen30 != 0) {
    printf("Maximum payload size 30ms Frames %" PRIuS " bytes (%0.3f kbps)\n",
           maxStreamLen30, maxStreamLen30 * 8 / 30.);
  }
  if (maxStreamLen60 != 0) {
    printf("Maximum payload size 60ms Frames %" PRIuS " bytes (%0.3f kbps)\n",
           maxStreamLen60, maxStreamLen60 * 8 / 60.);
  }
  // fprintf(stderr, "\n");

  fprintf(stderr, "   %.1f s", length_file);
  fprintf(stderr, "   %0.1f kbps",
          (double)totalbits * (sampFreqKHz) / totalsmpls);
  if (maxStreamLen30 != 0) {
    fprintf(stderr, "   plmax-30ms %" PRIuS " bytes (%0.0f kbps)",
            maxStreamLen30, maxStreamLen30 * 8 / 30.);
  }
  if (maxStreamLen60 != 0) {
    fprintf(stderr, "   plmax-60ms %" PRIuS " bytes (%0.0f kbps)",
            maxStreamLen60, maxStreamLen60 * 8 / 60.);
  }
  if (doTransCoding) {
    fprintf(stderr, "  transcoding rate %.0f kbps",
            (double)numTransCodingBytes * 8.0 * (sampFreqKHz) / totalsmpls);
  }

  fclose(inp);
  fclose(outp);
  WebRtcIsac_Free(ISAC_main_inst);

  exit(0);
}