Print time for tessedit_timing_debug in milliseconds

Optimize also the code a little bit.

Signed-off-by: Stefan Weil <[email protected]>

src/ccmain/control.cpp

@@ -41,6 +41,7 @@
 #endif
 #include "sorthelper.h"
 #include "tesseractclass.h"
+#include "tesserrstream.h"  // for tesserr
 #include "tessvars.h"
 #include "werdit.h"
 
@@ -1313,9 +1314,10 @@ void Tesseract::classify_word_and_language(int pass_n, PAGE_RES_IT *pr_it, WordD
   PointerVector<WERD_RES> best_words;
   // Points to the best result. May be word or in lang_words.
   const WERD_RES *word = word_data->word;
-  clock_t start_t = 0;
-  if (tessedit_timing_debug) {
-    start_t = clock();
+  clock_t total_time = 0;
+  const bool timing_debug = tessedit_timing_debug;
+  if (timing_debug) {
+    total_time = clock();
   }
   const bool debug = classify_debug_level > 0 || multilang_debug_level > 0;
   if (debug) {
@@ -1368,10 +1370,10 @@ void Tesseract::classify_word_and_language(int pass_n, PAGE_RES_IT *pr_it, WordD
   } else {
     tprintf("no best words!!\n");
   }
-  if (tessedit_timing_debug) {
-    clock_t ocr_t = clock();
-    tprintf("%s (ocr took %.2f sec)\n", word_data->word->best_choice->unichar_string().c_str(),
-            static_cast<double>(ocr_t - start_t) / CLOCKS_PER_SEC);
+  if (timing_debug) {
+    total_time = clock() - total_time;
+    tesserr << word_data->word->best_choice->unichar_string()
+            << " (ocr took " << 1000 * total_time / CLOCKS_PER_SEC << " ms)\n";
   }
 }