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Round down at calculating efficiency rate

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Yutaka Sawada
2023-03-15 02:31:02 +09:00
committed by GitHub
parent 96587ff8b8
commit cef6a418be
1 changed files with 12 additions and 7 deletions
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19
source/par2j/par2.c
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@@ -1,5 +1,5 @@
// par2.c // par2.c
// Copyright : 2023-03-10 Yutaka Sawada // Copyright : 2023-03-15 Yutaka Sawada
// License : GPL // License : GPL
#ifndef _UNICODE #ifndef _UNICODE
@@ -344,7 +344,6 @@ int par2_trial(
{ {
int packet_num, common_size, footer_size; int packet_num, common_size, footer_size;
__int64 total_data_size; __int64 total_data_size;
double rate1, rate2;
// ソース・ファイルの情報から共通パケットのサイズを計算する // ソース・ファイルの情報から共通パケットのサイズを計算する
common_size = measure_common_packet(&packet_num, (switch_p & 2) >> 1); common_size = measure_common_packet(&packet_num, (switch_p & 2) >> 1);
@@ -364,15 +363,21 @@ int par2_trial(
// 効率を計算する // 効率を計算する
if ((source_num == 0) || (total_file_size == 0)){ if ((source_num == 0) || (total_file_size == 0)){
rate1 = 0; packet_num = 0;
rate2 = 0; footer_size = 0;
common_size = 0;
} else { } else {
double rate1, rate2;
rate1 = (double)total_data_size / ((double)block_size * (double)source_num); rate1 = (double)total_data_size / ((double)block_size * (double)source_num);
rate2 = (double)block_size * (double)parity_num / (double)total_file_size; rate2 = (double)block_size * (double)parity_num / (double)total_file_size;
// 整数型に変換して、小数点以下第2位を切り捨てる (doubleのままだと四捨五入される)
packet_num = (int)(rate1 * 1000);
footer_size = (int)(rate2 * 1000);
common_size = (int)(rate1 * rate2 * 1000);
} }
printf("File data in Blocks\t: %.1lf%%\n", rate1 * 100); printf("File data in Blocks\t: %d.%d%%\n", packet_num / 10, packet_num % 10);
printf("Blocks in PAR files\t: %.1lf%%\n", rate2 * 100); printf("Blocks in PAR files\t: %d.%d%%\n", footer_size / 10, footer_size % 10);
printf("Efficiency rate\t\t: %.1lf%%\n", rate1 * rate2 * 100); printf("Efficiency rate\t\t: %d.%d%%\n", common_size / 10, common_size % 10);
printf("\nTrial end\n"); printf("\nTrial end\n");
return 0; return 0;