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CLI: print -h to stdout, parse tweaks

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bnnm 2021-10-01 00:03:48 +02:00
parent a79768c9d8
commit fcc0461420
1 changed files with 23 additions and 20 deletions
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43
cli/vgmstream_cli.c
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@ -50,30 +50,27 @@
static size_t make_wav_header(uint8_t* buf, size_t buf_size, int32_t sample_count, int32_t sample_rate, int channels, int smpl_chunk, int32_t loop_start, int32_t loop_end);
static void usage(const char* name, int is_full) {
fprintf(stderr, APP_INFO "\n"
fprintf(is_full ? stdout : stderr, APP_INFO "\n"
"Usage: %s [-o <outfile.wav>] [options] <infile> ...\n"
"Options:\n"
" -o <outfile.wav>: name of output .wav file, default <infile>.wav\n"
" <outfile> wildcards can be ?s=subsong, ?n=stream name, ?f=infile\n"
" -l loop count: loop count, default 2.0\n"
" -f fade time: fade time in seconds after N loops, default 10.0\n"
" -d fade delay: fade delay in seconds, default 0.0\n"
" -F: don't fade after N loops and play the rest of the stream\n"
" -m: print metadata only, don't decode\n"
" -i: ignore looping information and play the whole stream once\n"
" -e: force end-to-end looping\n"
" -l N.n: loop count, default 2.0\n"
" -f N.n: fade time in seconds after N loops, default 10.0\n"
" -d N.n: fade delay in seconds, default 0.0\n"
" -F: don't fade after N loops and play the rest of the stream\n"
" -e: set end-to-end looping (if file has no loop points)\n"
" -E: force end-to-end looping even if file has real loop points\n"
" -s N: select subsong N, if the format supports multiple subsongs\n"
" -S N: select end subsong (set 0 for 'all')\n"
" -m: print metadata only, don't decode\n"
" -S N: select end subsong N (set 0 for 'all')\n"
" -L: append a smpl chunk and create a looping wav\n"
" -2 N: only output the Nth (first is 0) set of stereo channels\n"
" -p: output to stdout (for piping into another program)\n"
" -P: output to stdout even if stdout is a terminal\n"
" -c: loop forever (continuously) to stdout\n"
" -x: decode and print adxencd command line to encode as ADX\n"
" -g: decode and print oggenc command line to encode as OGG\n"
" -b: decode and print batch variable commands\n"
" -h: print extra commands (for testing)\n"
" -h: print all commands\n"
#ifdef HAVE_JSON
" -V: print version info and supported extensions as JSON\n"
" -I: print requested file info as JSON\n"
@ -81,11 +78,15 @@ static void usage(const char* name, int is_full) {
, name);
if (!is_full)
return;
fprintf(stderr,
fprintf(is_full ? stdout : stderr,
" -2 N: only output the Nth (first is 0) set of stereo channels\n"
" -x: decode and print adxencd command line to encode as ADX\n"
" -g: decode and print oggenc command line to encode as OGG\n"
" -b: decode and print batch variable commands\n"
" -v: validate extensions (for extension testing)\n"
" -r: output a second file after resetting (for reset testing)\n"
" -k N: seeks to N samples before decoding (for seek testing)\n"
" -K N: seeks again to N samples before decoding (for seek testing)\n"
" -r: reset and output a second file (for reset testing)\n"
" -k N: kills (seeks) N samples before decoding (for seek testing)\n"
" -K N: kills (seeks) again to N samples before decoding (for seek testing)\n"
" -t file: print tags found in file (for tag testing)\n"
" -T: print title (for title testing)\n"
" -D <max channels>: downmix to <max channels> (for plugin downmix testing)\n"
@ -170,6 +171,8 @@ static int parse_config(cli_config* cfg, int argc, char** argv) {
cfg->outfilename = optarg;
break;
case 'l':
//cfg->loop_count = strtod(optarg, &end); //C99, allow?
//if (*end != '\0') goto fail_arg;
cfg->loop_count = atof(optarg);
break;
case 'f':
@ -265,7 +268,7 @@ static int parse_config(cli_config* cfg, int argc, char** argv) {
break;
#endif
case '?':
fprintf(stderr, "unknown option -%c found\n", optopt);
fprintf(stderr, "missing argument or unknown option -%c\n", optopt);
goto fail;
default:
usage(argv[0], 0);
@ -273,7 +276,7 @@ static int parse_config(cli_config* cfg, int argc, char** argv) {
}
}
/* filenames go last */
/* filenames go last in POSIX getopt, not so in glibc getopt */ //TODO unify
if (optind != argc - 1) {
int i;
@ -289,8 +292,8 @@ static int parse_config(cli_config* cfg, int argc, char** argv) {
cfg->infilenames = &argv[optind];
cfg->infilenames_count = argc - optind;
if (cfg->infilenames_count <= 0) {
fprintf(stderr, "missing input file\n");
usage(argv[0], 0);
//fprintf(stderr, "missing input file\n");
goto fail;
}