Add chartjson_result_file argument to isac_fix_test.

So we can report perf results using JSON and not parsing stdout.

I reordered the way the arguments are parsed, so that options go
at the end, and not at the middle, which is an awkward place to put them.

Regular usage specifying [-I], bottleneck_value, infile and outfile
shouldn't be affected.

Bug: chromium:807737
Change-Id: Ida863846400326c33e443d723f384971b891b6e5
Reviewed-on: https://webrtc-review.googlesource.com/47161
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Commit-Queue: Edward Lemur <ehmaldonado@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21873}

modules/audio_coding/codecs/isac/fix/test/kenny.cc

@@ -106,6 +106,8 @@ TEST(IsacFixTest, Kenny) {
   FILE *inp, *outp, *f_bn, *outbits;
   int endfile;
 
+  char chartjson_result_file[100];
+
   size_t i;
   int errtype, h = 0, k, packetLossPercent = 0;
   int16_t CodingMode;
@@ -162,7 +164,7 @@ TEST(IsacFixTest, Kenny) {
   packetLossPercent = 0;
 
   /* Handling wrong input arguments in the command line */
-  if ((argc<3) || (argc>21))  {
+  if ((argc<3) || (argc>22))  {
     printf("\n\nWrong number of arguments or flag values.\n\n");
 
     printf("\n");
@@ -170,7 +172,7 @@ TEST(IsacFixTest, Kenny) {
     printf("iSAC version %s \n\n", version_number);
 
     printf("Usage:\n\n");
-    printf("%s [-F num][-I] bottleneck_value infile outfile \n\n", argv[0]);
+    printf("%s [-I] bottleneck_value infile outfile [-F num]\n\n", argv[0]);
     printf("with:\n");
     printf("[-I]             :if -I option is specified, the coder will use\n");
     printf("                  an instantaneous Bottleneck value. If not, it\n");
@@ -178,6 +180,8 @@ TEST(IsacFixTest, Kenny) {
     printf("bottleneck_value :the value of the bottleneck provided either\n");
     printf("                  as a fixed value (e.g. 25000) or\n");
     printf("                  read from a file (e.g. bottleneck.txt)\n\n");
+    printf("infile           :Normal speech input file\n\n");
+    printf("outfile          :Speech output file\n\n");
     printf("[-INITRATE num]  :Set a new value for initial rate. Note! Only used"
            " in adaptive mode.\n\n");
     printf("[-FL num]        :Set (initial) frame length in msec. Valid length"
@@ -226,8 +230,9 @@ TEST(IsacFixTest, Kenny) {
     printf("[-RTP_INIT num]  :if -RTP_INIT option is specified num will be"
            " the initial\n");
     printf("                  value of the rtp sequence number.\n\n");
-    printf("infile          : Normal speech input file\n\n");
+    printf("[--chartjson_result_file file]\n");
-    printf("outfile         : Speech output file\n\n");
+    printf("                 :If this option is specified, perf values will be"
+           " written to this file in a JSON format.\n\n");
     printf("Example usage    :\n\n");
     printf("%s -I bottleneck.txt speechIn.pcm speechOut.pcm\n\n", argv[0]);
     exit(1);
@@ -242,7 +247,8 @@ TEST(IsacFixTest, Kenny) {
   CodingMode = 0;
   testNum = 0;
   testCE = 0;
-  for (i = 1; i + 2 < static_cast<size_t>(argc); i++) {
+  i = 1;
+
   /* Instantaneous mode */
   if (!strcmp ("-I", argv[i])) {
     printf("\nInstantaneous BottleNeck\n");
@@ -250,6 +256,14 @@ TEST(IsacFixTest, Kenny) {
     i++;
   }
 
+  /* Bottleneck value is processed after the for */
+  i++;
+
+  /* Get Input and Output files */
+  sscanf(argv[i++], "%s", inname);
+  sscanf(argv[i++], "%s", outname);
+
+  for (; i + 1 < static_cast<size_t>(argc); i++) {
     /* Set (initial) bottleneck value */
     if (!strcmp ("-INITRATE", argv[i])) {
       rateBPS = atoi(argv[i + 1]);
@@ -375,6 +389,11 @@ TEST(IsacFixTest, Kenny) {
     if (!strcmp ("-RTP_INIT", argv[i])) {
       i++;
     }
+
+    if (!strcmp ("--chartjson_result_file", argv[i])) {
+      strncpy(chartjson_result_file, argv[i+1], 50);
+      i++;
+    }
   }
 
   /* Get Bottleneck value                                                   */
@@ -413,10 +432,6 @@ TEST(IsacFixTest, Kenny) {
     printf("\nAdaptive BottleNeck\n");
   }
 
-  /* Get Input and Output files */
-  sscanf(argv[argc-2], "%s", inname);
-  sscanf(argv[argc-1], "%s", outname);
-
   /* Add '.bit' to output bitstream file */
   while ((int)outname[h] != 0) {
     outbitsname[h] = outname[h];
@@ -826,6 +841,10 @@ TEST(IsacFixTest, Kenny) {
   webrtc::test::PrintResult("isac", "", "time_per_10ms_frame",
                             (runtime * 10000) / length_file, "us", false);
 
+  if (*chartjson_result_file) {
+    webrtc::test::WritePerfResults(chartjson_result_file);
+  }
+
   fclose(inp);
   fclose(outp);
   fclose(outbits);