replace perror with strerror to be able to print the file name

play_raw_audio.c

@@ -1,9 +1,11 @@
 #include "play_raw_audio.h"
-#include <stdio.h>
-#include <unistd.h>
+#include <errno.h>
 #include <fcntl.h>
-#include <pulse/simple.h>
 #include <pulse/error.h>
+#include <pulse/simple.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
 
 int play_raw_audio(char file_name[]) {
 	int pa_error = 0;
@@ -11,7 +13,7 @@ int play_raw_audio(char file_name[]) {
 
 	int myfd = open(file_name, O_RDONLY);
 	if (myfd == -1) {
-		perror("Failed to open audio file");
+		fprintf(stderr, "Failed to open audio file %s: %s.\n", file_name, strerror(errno));
 		return 1;
 	}