From 7507e78a3c7107f820a501620da630fa8d48ea56 Mon Sep 17 00:00:00 2001
From: Arnaud Blanchard <arnaud.blanchard@ensea.fr>
Date: Mon, 16 Apr 2018 16:40:50 +0200
Subject: [PATCH] Add -n option to limit the numbers of samples
---
i_sndfile/i_sndfile.cpp | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/i_sndfile/i_sndfile.cpp b/i_sndfile/i_sndfile.cpp
index c579956..a51bb12 100644
--- a/i_sndfile/i_sndfile.cpp
+++ b/i_sndfile/i_sndfile.cpp
@@ -8,8 +8,8 @@
int main(int argc, char**argv){
blc_channel output;
- char const *filename, *output_name, *type_str, *length_str, *period_str, *samplerate_str;
- int period, samplerate;
+ char const *filename, *output_name, *type_str, *length_str, *period_str, *samplerate_str, *iterations_nb_str;
+ int period, samplerate, iterations_nb;
size_t length;
uint32_t type;
SF_INFO sfinfo;
@@ -18,6 +18,7 @@ int main(int argc, char**argv){
blc_program_set_description("Record blc_channel input in a sound file");
blc_program_add_option(&filename, 'f', "file", "string", "filename of the file to write", NULL);
+ blc_program_add_option(&iterations_nb_str, 'n', "number", "integer", "number of samples to acquire (-1 for infinity)", "-1");
blc_program_add_option(&output_name, 'o', "output", "string", "Channel where to put the sound", DEFAULT_OUTPUT_NAME);
blc_program_add_option(&period_str, 'p', "period", "integer", "Period between each sample in ms (0 as fast as possible)", "0");
blc_program_add_option(&length_str, 's', "size", "integer", "Sample size", "4096");
@@ -37,6 +38,7 @@ int main(int argc, char**argv){
if (sscanf(length_str, "%ld", &length)!=1) EXIT_ON_ERROR("Reading size '%s'", length_str);
if (sscanf(period_str, "%d", &period)!=1) EXIT_ON_ERROR("Reading period in '%s'", period_str);
+ iterations_nb=strtol(iterations_nb_str, NULL, 10);
if (strcmp(DEFAULT_OUTPUT_NAME, output_name)==0) asprintf((char**)&output_name, ":sound%d", getpid());
output.create_or_open(output_name, BLC_CHANNEL_WRITE, type, 'LPCM', 1, length);
@@ -51,6 +53,7 @@ int main(int argc, char**argv){
blc_loop_try_add_posting_semaphore(output.sem_new_data);
BLC_COMMAND_LOOP(period*1000){
+ if (iterations_nb==blc_loop_iteration) blc_command_ask_quit();
read_items_nb=sf_read_float(sndfile, output.floats, output.total_length);
if (read_items_nb!=output.total_length) {
color_eprintf(BLC_YELLOW, "%s: Iteration %llu: Missing data. Read '%lld' items instead of '%ld'. It is probably the end of the file\n", blc_program_name, blc_loop_iteration, read_items_nb, output.total_length);
--
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