template.c: support stdout output
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35fe39b0e0
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0d65942d81
GPG Key ID:
83631EF27054609B
@ -27,6 +27,7 @@ typedef long double bb_fp_return_t;
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#endif
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#define OUTPUT_FILE `output_file`
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#define STDOUT_OUTPUT (OUTPUT_FILE == "-")
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#define SAMPLE_RATE `sample_rate`
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#define ORIGINAL_SAMPLE_RATE `original_sample_rate`
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@ -86,6 +87,16 @@ typedef long double bb_fp_return_t;
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#define STRINGIZE(x) #x
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#define INT2STR(x) STRINGIZE(x)
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#if STDOUT_OUTPUT
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# define smart_printf(...) fprintf(stderr, __VA_ARGS__)
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# define smart_puts(s) fprintf(stderr, s "\n")
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# define smart_fflush fflush(stderr)
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#else
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# define smart_printf printf
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# define smart_puts puts
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# define smart_fflush fflush(stdout)
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#endif
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// macros
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#define ALLOCATE_MEMORY(nmemb) \
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SAMPLE_TYPE* buffer = malloc( \
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@ -137,21 +148,22 @@ print_time(uintmax_t length) {
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if (seconds > 0)
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if (seconds >= 3600)
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printf(
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smart_printf(
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"%" PRIuMAX ":%02" PRIuMAX ":%02" PRIuMAX,
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seconds / 3600,
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(seconds / 60) % 60,
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seconds % 60);
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else if (seconds >= 60)
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printf("%" PRIuMAX ":%02" PRIuMAX, seconds / 60, seconds % 60);
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smart_printf("%" PRIuMAX ":%02" PRIuMAX, seconds / 60,
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seconds % 60);
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else
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printf("%" PRIuMAX " seconds", seconds);
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smart_printf("%" PRIuMAX " seconds", seconds);
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if (seconds > 0 && samples > 0)
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printf(" + ");
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smart_printf(" + ");
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if (samples > 0)
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printf("%" PRIuMAX " samples", samples);
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smart_printf("%" PRIuMAX " samples", samples);
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}
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int
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@ -159,13 +171,10 @@ main(void)
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{
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// * log -> welcome
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#if !SILENT_MODE
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puts(":: C bytebeat generator: runtime unit");
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fflush(stdout);
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smart_puts(":: C bytebeat generator: runtime unit");
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smart_fflush();
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const uintmax_t seconds = LENGTH / SAMPLE_RATE,
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samples = LENGTH % SAMPLE_RATE;
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printf(
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smart_printf(
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"\n"
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"Sample rate: " INT2STR(SAMPLE_RATE) " Hz\n"
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"Channels: " INT2STR(CHANNELS)
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@ -193,28 +202,29 @@ main(void)
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print_time(RUNNING_LENGTH);
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#if REPEAT_TIMES > 0
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printf(", %llu times -> ", REPEAT_TIMES + 1);
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smart_printf(", %llu times -> ", REPEAT_TIMES + 1);
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print_time(RUNNING_LENGTH * (REPEAT_TIMES + 1));
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#endif
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#if INITIAL_TIME != 0
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printf("\nStart time: ");
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smart_printf("\nStart time: ");
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print_time(INITIAL_TIME);
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#endif
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#if VERBOSE_MODE || SEQUENTIAL_MODE
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puts("\n");
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smart_puts("\n");
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#endif
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fflush(stdout);
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smart_fflush();
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#endif
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// * write WAVE headers
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// 0. log
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#if !SILENT_MODE && VERBOSE_MODE
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puts("Writing WAVE headers...");
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#if VERBOSE_MODE
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smart_puts("Writing WAVE headers...");
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#endif
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#if !STDOUT_OUTPUT
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// 1. open file
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FILE* output_file = fopen(OUTPUT_FILE,
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"wb"
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@ -223,10 +233,11 @@ main(void)
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# endif
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);
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if (output_file == NULL) {
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fflush(stdout);
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smart_fflush();
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perror("fopen");
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return EXIT_FAILURE;
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}
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#endif
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// 2. prepare variables
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const uint32_t header_size =
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@ -253,6 +264,7 @@ main(void)
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block_align = (ACTUAL_BIT_DEPTH * CHANNELS) / 8,
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bit_depth = ACTUAL_BIT_DEPTH;
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#if !STDOUT_OUTPUT
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// 3. write headers
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// <L = Little-endian or B = Big-endian> : <name> : <bytes of field>
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fwrite ("RIFF", 1, 4, output_file); // B : ChunkID : 4
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@ -268,6 +280,7 @@ main(void)
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fwrite_le(&bit_depth, 2, 1, output_file); // L : BitsPerSample : 2
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fwrite ("data", 1, 4, output_file); // B : Subchunk2ID : 4
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fwrite_le(&buffer_size, 4, 1, output_file); // L : Subchunk2Size : 4
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#endif
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// 4. write sample data
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#if SEQUENTIAL_MODE
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@ -360,10 +373,10 @@ main(void)
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] = sample_res;
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// 6. log
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#if VERBOSE_MODE
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#if VERBOSE_MODE && !STDOUT_OUTPUT
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if (time % FREQUENCY_OF_STATUS_REPORTING == 0 ||
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time >= LOOP_END_MINUS_1 /* or if writing last sample */) {
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printf(
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smart_printf(
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"%sremaining samples = %18" PRIuMAX " (%6.2Lf%% done)"
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#if SEQUENTIAL_MODE
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" (part %" PRIuMAX "/%" PRIuMAX ")"
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@ -376,26 +389,26 @@ main(void)
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, (uintmax_t) seq + 1, (uintmax_t) MAX
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#endif
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);
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fflush(stdout);
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smart_fflush();
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}
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#endif
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}
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#if !SILENT_MODE
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printf(_ANSI_CLEAR_STRING);
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smart_printf(_ANSI_CLEAR_STRING);
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// 5. log
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#if !(SEQUENTIAL_MODE && VERBOSE_MODE)
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# if SEQUENTIAL_MODE
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if (seq == 0)
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# endif
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puts(
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smart_puts(
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# if !SEQUENTIAL_MODE
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"\n"
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# endif
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"Writing out file " OUTPUT_FILE "...");
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#endif
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fflush(stdout);
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smart_fflush();
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#endif
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// * save the sample data into the file
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@ -405,9 +418,20 @@ main(void)
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#else
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GEN_LENGTH,
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#endif
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output_file);
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#if STDOUT_OUTPUT
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stdout
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#else
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output_file
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#endif
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);
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#if SEQUENTIAL_MODE
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fflush(output_file);
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fflush(
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# if STDOUT_OUTPUT
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stdout
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# else
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output_file
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# endif
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);
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#endif
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#if SEQUENTIAL_MODE
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@ -415,6 +439,7 @@ main(void)
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#endif
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#if REPEAT_TIMES > 0
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# if !(STDOUT_OUTPUT && !SEQUENTIAL_MODE)
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// * repeat as much as needed
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# if !SILENT_MODE
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@ -451,13 +476,18 @@ main(void)
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fwrite_le(buffer, sizeof(SAMPLE_TYPE), GEN_LENGTH, output_file);
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# endif
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}
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# else
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fprintf(stderr, "Repeating is not supported in STDOUT, sequential mode\n");
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# endif
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#endif
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// * free allocated heap
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free(buffer);
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#if !STDOUT_OUTPUT
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// 6. close file
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fclose(output_file);
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#endif
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// * end of program
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#if !SILENT_MODE
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