From 206e7fb0c43332dd1fd2b51f437656deeae8e598 Mon Sep 17 00:00:00 2001
From: Paul Best <paulobest25@gmail.com>
Date: Tue, 17 Sep 2019 15:29:39 +0200
Subject: [PATCH] Incude milliseconds in filename (all OS compatible)
---
src/filewriter.cpp | 21 +++++++++++++++++----
src/main.cpp | 2 +-
2 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/src/filewriter.cpp b/src/filewriter.cpp
index 89abc81..a86db05 100644
--- a/src/filewriter.cpp
+++ b/src/filewriter.cpp
@@ -8,7 +8,9 @@
#include <stdexcept>
#include <vector>
#include <iostream>
-#include <ctime>
+#include <chrono>
+#include <sstream>
+#include <iomanip>
FileWriter::FileWriter(std::string &filename_template, size_t num_channels, size_t sample_rate) :
filename_template(filename_template), num_channels(num_channels), sample_rate(sample_rate) {
@@ -22,9 +24,20 @@ FileWriter::~FileWriter() {
std::string FileWriter::generate_filename() {
// this has of course nothing to do with file writing and could be pulled
// out, but I doubt anybody will ever care
- time_t timer;
- time(&timer);
- struct tm *timeinfo = localtime(&timer);
+ using namespace std::chrono;
+ auto miliseconds = duration_cast<milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
+ long seconds = miliseconds/1000;
+ struct tm *timeinfo = localtime(&seconds);
+
+ size_t found = filename_template.find("%z");
+ while(found != std::string::npos){
+ std::stringstream ss;
+ ss << std::setw(3) << std::setfill('0') << miliseconds%1000;
+ std::string s = ss.str();
+ filename_template.replace(found, 2, s);
+ found = filename_template.find("%z", found+3);
+ }
+
size_t length = 0;
size_t space = 0;
std::vector<char> buffer;
diff --git a/src/main.cpp b/src/main.cpp
index 3e6e06b..8adee38 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -20,7 +20,7 @@ void print_usage(char *name) {
std::cout << " CHANNELS: number of channels to record (1 to 5)" << std::endl;
std::cout << " RATE: sample rate in Hz to record at (integral number)" << std::endl;
std::cout << " FILENAME: output file name; should include strftime() format specifiers" << std::endl;
- std::cout << " if CHUNKLEN is specified. Example: location/recording_%Y%m%dT%H%M%S.wav" << std::endl;
+ std::cout << " if CHUNKLEN is specified. For miliseconds, use %z. Example: location/recording_%Y%m%dT%H%M%S%z.wav" << std::endl;
std::cout << " CHUNKLEN: length per output file in seconds; will start a new file whenever" << std::endl;
std::cout << " this length is reached. If not given or zero, will record a single file." << std::endl;
std::cout << " TOTALLEN: total recording length; will stop when this length is reached." << std::endl;
--
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