bytebeat_render.c: add custom output

.gitignore

@@ -54,4 +54,4 @@ dkms.conf
 
 # ---> products
 build/
-output.wav
+*.wav

bytebeat_compiler.py

@@ -76,6 +76,7 @@ def substitute_vars(replacements: Dict[str, Union[bool, str]], text: str,
 	return text
 
 preprocessor_bool = lambda value: "1" if value else "0"
+C_str_repr = lambda s: '"' + s.replace("\\", "\\\\").replace(r'"', r'\"') + '"'
 
 CC = fetch("CC")
 CFLAGS = fetch("CFLAGS")
@@ -90,6 +91,8 @@ if __name__ == "__main__":
 		"`OUTPUT_FILE`.")
 	parser.add_argument("file", type=str,
 		help="bytebeat formula file (use `-` to read from stdin)")
+	parser.add_argument("-o", "--output", default="output.wav", type=str,
+		help="specify output file path (default is `output.wav`")
 	parser.add_argument("-r", "--sample-rate", default=8000, type=int,
 		help="sample rate (Hz)")
 	parser.add_argument("-p", "--final-sample-rate", default=None, type=int,
@@ -183,6 +186,7 @@ if __name__ == "__main__":
 
 	rewrite_file(PATHS["substitute"], substitute_vars({
 		"bytebeat_contents": bytebeat_contents,
+		"output_file": C_str_repr(args.output),
 		"sample_rate": args.sample_rate,
 		"original_sample_rate": original_sample_rate,
 		"final_sample_rate_code": final_sample_rate_code,

src/template.c

@@ -19,6 +19,8 @@
 #endif
 const char* ANSI_CLEAR = __ANSI_CLEAR_STRING;
 
+#define OUTPUT_FILE `output_file`
+
 #define SAMPLE_RATE `sample_rate`
 #define ORIGINAL_SAMPLE_RATE `original_sample_rate`
 #define BIT_DEPTH `bit_depth`
@@ -132,12 +134,12 @@ main(void)
 	// * write WAVE headers
 	// 0. log
 #if !SILENT_MODE
-	printf("\nWriting out file output.wav...\n");
+	printf("\nWriting out file " OUTPUT_FILE "...\n");
 	fflush(stdout);
 #endif
 
 	// 1. open file
-	FILE* output_file = fopen("output.wav", "wb");
+	FILE* output_file = fopen(OUTPUT_FILE, "wb");
 	if (output_file == NULL || !output_file) {
 		perror("fopen");
 		return 1;