/** print commandline help */
static void _print_help(char *name)
{
printf("Capture portion of screen & display on LED hardware - %s\n"
"Usage: %s [options]\n\n"
"Valid options:\n"
"\t--help\t\t\t-h\t\tThis help text\n"
"\t--mechanism <name>\t-m <name>\tCapture mechanism (default: \"Xlib\")\n"
"\t--plugin-help\t\t-p\t\tList of installed plugins + information\n"
"\t--config <file>\t\t-c <file>\tLoad this config file (default: ~/.ledcat.xml) \n"
"\t--x <x>\t\t\t-x <x>\t\tX-coordinate of capture rectangle (default: 0)\n"
"\t--y <y>\t\t\t-y <y>\t\tY-coordinate of capture rectangle (default: 0)\n"
"\t--dimensions <w>x<h>\t-d <w>x<h>\tDefine width and height of capture rectangle. (default: auto)\n"
"\t--fps <n>\t\t-f <n>\t\tFramerate to play multiple frames at (default: 25)\n"
"\t--loglevel <level>\t-l <level>\tOnly show messages with loglevel <level> (default: info)\n\n",
PACKAGE_URL, name);
printf("\n");
_print_loglevels();
capture_print_mechanisms();
}
/** print commandline help */
static void _print_help(char *name)
{
printf("Send image to LED hardware - %s\n"
"Usage: %s [options] <file(s)>\n\n"
"Choose \"-\" as <file> to read from stdin\n\n"
"Valid options:\n"
"\t--help\t\t\t-h\t\tThis help text\n"
"\t--plugin-help\t\t-p\t\tList of installed plugins + information\n"
"\t--config <file>\t\t-c <file>\tLoad this prefs file [~/.ledcat.xml] \n"
"\t--dimensions <w>x<h>\t-d <w>x<h>\tDefine width and height of input frames. [auto]\n"
"\t--big-endian\t\t-b\t\tRAW data is big-endian ordered [off]\n"
"\t--loop\t\t\t-L\t\tDon't exit after last file but start over with first [off]\n"
"\t--fps <n>\t\t-F <n>\t\tFramerate to play multiple frames at. (Ignored when --signal is used) [25]\n"
#if HAVE_IMAGEMAGICK == 1
"\t--raw\t\t\t-r\t\tTreat input files as raw-files (false)\n"
#endif
"\t--format <format>\t-f <format>\tPixelformat of raw frame - doesn't have effect without --raw. (s. http://gegl.org/babl/ for supported formats)\n"
"\t--loglevel <level>\t-l <level>\tOnly show messages with loglevel <level> (info)\n\n",
PACKAGE_URL, name);
/* print loglevels */
printf("\n");
_print_loglevels();
}
/** parse commandline arguments */
static NftResult _parse_args(int argc, char *argv[])
{
int index, argument;
static struct option loptions[] =
{
{"help", 0, 0, 'h'},
{"plugin-help", 0, 0, 'p'},
{"loglevel", required_argument, 0, 'l'},
{"config", required_argument, 0, 'c'},
{"dimensions", required_argument, 0, 'd'},
{"fps", required_argument, 0, 'F'},
{"format", required_argument, 0, 'f'},
{"big-endian", no_argument, 0, 'b'},
{"loop", no_argument, 0, 'L'},
#if HAVE_IMAGEMAGICK == 1
{"raw", no_argument, 0, 'r'},
#endif
{0,0,0,0}
};
#if HAVE_IMAGEMAGICK == 1
const char arglist[] = "hpl:c:d:F:f:bLr";
#else
const char arglist[] = "hpl:c:d:F:f:bL";
#endif
while((argument = getopt_long(argc, argv, arglist, loptions, &index)) >= 0)
{
switch(argument)
{
/* --help */
case 'h':
{
_print_help(argv[0]);
return NFT_FAILURE;
}
/* --plugin-help */
case 'p':
{
_print_plugin_help();
return NFT_FAILURE;
}
/* --config */
case 'c':
{
/* save filename for later */
strncpy(_c.prefsfile, optarg, sizeof(_c.prefsfile));
break;
}
/** --loop */
case 'L':
{
_c.do_loop = TRUE;
break;
}
/** --dimensions */
case 'd':
{
if(sscanf(optarg, "%dx%d", (int*) &_c.width, (int*) &_c.height) != 2)
{
NFT_LOG(L_ERROR, "Invalid dimension \"%s\" (Use something like 320x400)", optarg);
return NFT_FAILURE;
}
break;
}
/** --fps */
case 'F':
{
if(sscanf(optarg, "%d", (int*) &_c.fps) != 1)
{
NFT_LOG(L_ERROR, "Invalid framerate \"%s\" (Use an integer)", optarg);
return NFT_FAILURE;
}
break;
}
/** --loglevel */
case 'l':
{
if(!nft_log_level_set(nft_log_level_from_string(optarg)))
{
_print_loglevels();
return NFT_FAILURE;
}
break;
}
/** --format */
case 'f':
{
strncpy(_c.pixelformat, optarg, sizeof(_c.pixelformat));
break;
}
#if HAVE_IMAGEMAGICK == 1
/** --raw */
case 'r':
{
_c.raw = TRUE;
break;
}
#endif
/** --big-endian */
case 'b':
{
_c.is_big_endian = TRUE;
break;
}
/* invalid argument */
case '?':
{
NFT_LOG(L_ERROR, "argument %d is invalid", index);
_print_help(argv[0]);
return NFT_FAILURE;
}
/* unhandled arguments */
default:
{
NFT_LOG(L_ERROR, "argument %d is invalid", index);
break;
}
}
}
_c.files = &argv[optind];
return NFT_SUCCESS;
}
/** parse commandline arguments */
static NftResult _parse_args(int argc, char *argv[])
{
int index, argument;
static struct option loptions[] =
{
{"help", 0, 0, 'h'},
{"plugin-help", 0, 0, 'p'},
{"loglevel", required_argument, 0, 'l'},
{"config", required_argument, 0, 'c'},
{"x", required_argument, 0, 'x'},
{"y", required_argument, 0, 'y'},
{"dimensions", required_argument, 0, 'd'},
{"fps", required_argument, 0, 'f'},
{"mechanism", required_argument, 0, 'm'},
{0,0,0,0}
};
while((argument = getopt_long(argc, argv, "hpl:c:x:y:d:f:m:", loptions, &index)) >= 0)
{
switch(argument)
{
/** --help */
case 'h':
{
_print_help(argv[0]);
return NFT_FAILURE;
}
/* --plugin-help */
case 'p':
{
_print_plugin_help();
return NFT_FAILURE;
}
/* --mechanism */
case 'm':
{
_c.method = capture_method_from_string(optarg);
break;
}
/** --config */
case 'c':
{
/* save filename for later */
strncpy(_c.prefsfile, optarg, sizeof(_c.prefsfile));
break;
}
/** --x */
case 'x':
{
if(sscanf(optarg, "%d", (int*) &_c.x) != 1)
{
NFT_LOG(L_ERROR, "Invalid x-coordinate \"%s\" (Use an integer)", optarg);
return NFT_FAILURE;
}
break;
}
/** --y */
case 'y':
{
if(sscanf(optarg, "%d", (int*) &_c.y) != 1)
{
NFT_LOG(L_ERROR, "Invalid y-coordinate \"%s\" (Use an integer)", optarg);
return NFT_FAILURE;
}
break;
}
/** --dimensions */
case 'd':
{
if(sscanf(optarg, "%dx%d", (int*) &_c.width, (int*) &_c.height) != 2)
{
NFT_LOG(L_ERROR, "Invalid dimension \"%s\" (Use something like 320x400)", optarg);
return NFT_FAILURE;
}
break;
}
/** --fps */
case 'f':
{
if(sscanf(optarg, "%d", (int*) &_c.fps) != 1)
{
NFT_LOG(L_ERROR, "Invalid framerate \"%s\" (Use an integer)", optarg);
return NFT_FAILURE;
}
break;
}
/** --loglevel */
case 'l':
{
if(!nft_log_level_set(nft_log_level_from_string(optarg)))
{
_print_loglevels();
return NFT_FAILURE;
}
break;
}
/* invalid argument */
case '?':
{
NFT_LOG(L_ERROR, "argument %d is invalid", index);
_print_help(argv[0]);
return NFT_FAILURE;
}
/* unhandled arguments */
default:
{
NFT_LOG(L_ERROR, "argument %d is invalid", index);
break;
}
}
}
return NFT_SUCCESS;
}
