[libav.git] / cmdutils.c

/*
 * Various utilities for command line tools
 * Copyright (c) 2000-2003 Fabrice Bellard
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <math.h>

#include "avformat.h"
#include "avdevice.h"
#include "cmdutils.h"
#include "avstring.h"
#include "version.h"
#include "config.h"

#undef exit


double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
{
    char *tail;
    const char *error;
    double d = strtod(numstr, &tail);
    if (*tail)
        error= "Expected number for %s but found: %s\n";
    else if (d < min || d > max)
        error= "The value for %s was %s which is not within %f - %f\n";
    else if(type == OPT_INT64 && (int64_t)d != d)
        error= "Expected int64 for %s but found %s\n";
    else
        return d;
    fprintf(stderr, error, context, numstr, min, max);
    exit(1);
}

void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
{
    const OptionDef *po;
    int first;

    first = 1;
    for(po = options; po->name != NULL; po++) {
        char buf[64];
        if ((po->flags & mask) == value) {
            if (first) {
                printf("%s", msg);
                first = 0;
            }
            av_strlcpy(buf, po->name, sizeof(buf));
            if (po->flags & HAS_ARG) {
                av_strlcat(buf, " ", sizeof(buf));
                av_strlcat(buf, po->argname, sizeof(buf));
            }
            printf("-%-17s  %s\n", buf, po->help);
        }
    }
}

static const OptionDef* find_option(const OptionDef *po, const char *name){
    while (po->name != NULL) {
        if (!strcmp(name, po->name))
            break;
        po++;
    }
    return po;
}

void parse_options(int argc, char **argv, const OptionDef *options,
                   void (* parse_arg_function)(const char*))
{
    const char *opt, *arg;
    int optindex, handleoptions=1;
    const OptionDef *po;

    /* parse options */
    optindex = 1;
    while (optindex < argc) {
        opt = argv[optindex++];

        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
          if (opt[1] == '-' && opt[2] == '\0') {
            handleoptions = 0;
            continue;
          }
            po= find_option(options, opt + 1);
            if (!po->name)
                po= find_option(options, "default");
            if (!po->name) {
unknown_opt:
                fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
                exit(1);
            }
            arg = NULL;
            if (po->flags & HAS_ARG) {
                arg = argv[optindex++];
                if (!arg) {
                    fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
                    exit(1);
                }
            }
            if (po->flags & OPT_STRING) {
                char *str;
                str = av_strdup(arg);
                *po->u.str_arg = str;
            } else if (po->flags & OPT_BOOL) {
                *po->u.int_arg = 1;
            } else if (po->flags & OPT_INT) {
                *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
            } else if (po->flags & OPT_INT64) {
                *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
            } else if (po->flags & OPT_FLOAT) {
                *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -INFINITY, INFINITY);
            } else if (po->flags & OPT_FUNC2) {
                if(po->u.func2_arg(opt+1, arg)<0)
                    goto unknown_opt;
            } else {
                po->u.func_arg(arg);
            }
        } else {
            if (parse_arg_function)
                parse_arg_function(opt);
        }
    }
}

void print_error(const char *filename, int err)
{
    switch(err) {
    case AVERROR_NUMEXPECTED:
        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
                "Use '%%d' to specify the image number:\n"
                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
                filename);
        break;
    case AVERROR_INVALIDDATA:
        fprintf(stderr, "%s: Error while parsing header\n", filename);
        break;
    case AVERROR_NOFMT:
        fprintf(stderr, "%s: Unknown format\n", filename);
        break;
    case AVERROR(EIO):
        fprintf(stderr, "%s: I/O error occured\n"
                "Usually that means that input file is truncated and/or corrupted.\n",
                filename);
        break;
    case AVERROR(ENOMEM):
        fprintf(stderr, "%s: memory allocation error occured\n", filename);
        break;
    case AVERROR(ENOENT):
        fprintf(stderr, "%s: no such file or directory\n", filename);
        break;
    default:
        fprintf(stderr, "%s: Error while opening file\n", filename);
        break;
    }
}

void show_banner(const char *program_name, int program_birth_year)
{
    fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
            program_name, program_birth_year);
    fprintf(stderr, "  configuration: " FFMPEG_CONFIGURATION "\n");
    fprintf(stderr, "  libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
    fprintf(stderr, "  libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
    fprintf(stderr, "  libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
    fprintf(stderr, "  libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
    fprintf(stderr, "  built on " __DATE__ " " __TIME__);
#ifdef __GNUC__
    fprintf(stderr, ", gcc: " __VERSION__ "\n");
#else
    fprintf(stderr, ", using a non-gcc compiler\n");
#endif
}

void show_version(const char *program_name) {
     /* TODO: add function interface to avutil and avformat avdevice*/
    printf("%s " FFMPEG_VERSION "\n", program_name);
    printf("libavutil   %d\n"
           "libavcodec  %d\n"
           "libavformat %d\n"
           "libavdevice %d\n",
           LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
}

void show_license(void)
{
#ifdef CONFIG_NONFREE
    printf(
    "This version of FFmpeg has nonfree parts compiled in.\n"
    "Therefore it is not legally redistributable.\n"
    );
#elif CONFIG_GPL
    printf(
    "FFmpeg is free software; you can redistribute it and/or modify\n"
    "it under the terms of the GNU General Public License as published by\n"
    "the Free Software Foundation; either version 2 of the License, or\n"
    "(at your option) any later version.\n"
    "\n"
    "FFmpeg is distributed in the hope that it will be useful,\n"
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
    "GNU General Public License for more details.\n"
    "\n"
    "You should have received a copy of the GNU General Public License\n"
    "along with FFmpeg; if not, write to the Free Software\n"
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
    );
#else
    printf(
    "FFmpeg is free software; you can redistribute it and/or\n"
    "modify it under the terms of the GNU Lesser General Public\n"
    "License as published by the Free Software Foundation; either\n"
    "version 2.1 of the License, or (at your option) any later version.\n"
    "\n"
    "FFmpeg is distributed in the hope that it will be useful,\n"
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
    "Lesser General Public License for more details.\n"
    "\n"
    "You should have received a copy of the GNU Lesser General Public\n"
    "License along with FFmpeg; if not, write to the Free Software\n"
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
    );
#endif
}
Commit	Line	Data
01310af2 FB	1	/*
	2	* Various utilities for command line tools
	3	* Copyright (c) 2000-2003 Fabrice Bellard
	4	*
b78e7197 DB	5	* This file is part of FFmpeg.
	6	*
	7	* FFmpeg is free software; you can redistribute it and/or
01310af2 FB	8	* modify it under the terms of the GNU Lesser General Public
01310af2 FB	9	* License as published by the Free Software Foundation; either
b78e7197	10	* version 2.1 of the License, or (at your option) any later version.
01310af2	11	*
b78e7197	12	* FFmpeg is distributed in the hope that it will be useful,
01310af2 FB	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* Lesser General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU Lesser General Public
b78e7197	18	* License along with FFmpeg; if not, write to the Free Software
5509bffa	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
01310af2	20	*/
364a9607	21
0f4e8165 RB	22	#include <string.h>
	23	#include <stdlib.h>
	24	#include <errno.h>
7c84b8bc	25	#include <math.h>
0f4e8165	26
01310af2	27	#include "avformat.h"
2208741a	28	#include "avdevice.h"
01310af2	29	#include "cmdutils.h"
f7d78f36	30	#include "avstring.h"
86074ed1	31	#include "version.h"
b6cd8593	32	#include "config.h"
01310af2	33
c367d067 MN	34	#undef exit
c367d067 MN	35
086ab001 MN	36
	37	double parse_number_or_die(const char context, const char numstr, int type, double min, double max)
	38	{
	39	char *tail;
	40	const char *error;
	41	double d = strtod(numstr, &tail);
	42	if (*tail)
	43	error= "Expected number for %s but found: %s\n";
	44	else if (d < min \|\| d > max)
	45	error= "The value for %s was %s which is not within %f - %f\n";
	46	else if(type == OPT_INT64 && (int64_t)d != d)
	47	error= "Expected int64 for %s but found %s\n";
	48	else
	49	return d;
	50	fprintf(stderr, error, context, numstr, min, max);
	51	exit(1);
	52	}
	53
02d504a7	54	void show_help_options(const OptionDef options, const char msg, int mask, int value)
01310af2 FB	55	{
01310af2 FB	56	const OptionDef *po;
02d504a7	57	int first;
01310af2	58
02d504a7 FB	59	first = 1;
	60	for(po = options; po->name != NULL; po++) {
	61	char buf[64];
	62	if ((po->flags & mask) == value) {
	63	if (first) {
	64	printf("%s", msg);
	65	first = 0;
	66	}
f7d78f36	67	av_strlcpy(buf, po->name, sizeof(buf));
02d504a7	68	if (po->flags & HAS_ARG) {
f7d78f36 MR	69	av_strlcat(buf, " ", sizeof(buf));
f7d78f36 MR	70	av_strlcat(buf, po->argname, sizeof(buf));
01310af2	71	}
02d504a7	72	printf("-%-17s %s\n", buf, po->help);
01310af2 FB	73	}
	74	}
	75	}
	76
fccfc475	77	static const OptionDef* find_option(const OptionDef po, const char name){
8bbf6db9 MN	78	while (po->name != NULL) {
	79	if (!strcmp(name, po->name))
	80	break;
	81	po++;
	82	}
	83	return po;
	84	}
	85
60a9966e SS	86	void parse_options(int argc, char *argv, const OptionDef options,
60a9966e SS	87	void (* parse_arg_function)(const char*))
01310af2 FB	88	{
01310af2 FB	89	const char opt, arg;
b0d7bc1e	90	int optindex, handleoptions=1;
01310af2 FB	91	const OptionDef *po;
	92
	93	/* parse options */
	94	optindex = 1;
	95	while (optindex < argc) {
	96	opt = argv[optindex++];
115329f1	97
84bf226b TL	98	if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
	99	if (opt[1] == '-' && opt[2] == '\0') {
	100	handleoptions = 0;
	101	continue;
	102	}
8bbf6db9 MN	103	po= find_option(options, opt + 1);
	104	if (!po->name)
	105	po= find_option(options, "default");
01310af2	106	if (!po->name) {
8bbf6db9	107	unknown_opt:
01310af2 FB	108	fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
	109	exit(1);
	110	}
	111	arg = NULL;
	112	if (po->flags & HAS_ARG) {
	113	arg = argv[optindex++];
	114	if (!arg) {
	115	fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
	116	exit(1);
	117	}
	118	}
	119	if (po->flags & OPT_STRING) {
	120	char *str;
02d504a7	121	str = av_strdup(arg);
01310af2 FB	122	*po->u.str_arg = str;
	123	} else if (po->flags & OPT_BOOL) {
	124	*po->u.int_arg = 1;
26d4f26b	125	} else if (po->flags & OPT_INT) {
7c84b8bc	126	*po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
ffdf9a1f	127	} else if (po->flags & OPT_INT64) {
7c84b8bc	128	*po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
1f631450	129	} else if (po->flags & OPT_FLOAT) {
7c84b8bc	130	*po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -INFINITY, INFINITY);
8bbf6db9 MN	131	} else if (po->flags & OPT_FUNC2) {
	132	if(po->u.func2_arg(opt+1, arg)<0)
	133	goto unknown_opt;
01310af2	134	} else {
bb270c08	135	po->u.func_arg(arg);
01310af2 FB	136	}
01310af2 FB	137	} else {
60a9966e SS	138	if (parse_arg_function)
60a9966e SS	139	parse_arg_function(opt);
01310af2 FB	140	}
	141	}
	142	}
	143
	144	void print_error(const char *filename, int err)
	145	{
	146	switch(err) {
	147	case AVERROR_NUMEXPECTED:
	148	fprintf(stderr, "%s: Incorrect image filename syntax.\n"
	149	"Use '%%d' to specify the image number:\n"
	150	" for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1	151	" for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
01310af2 FB	152	filename);
	153	break;
	154	case AVERROR_INVALIDDATA:
	155	fprintf(stderr, "%s: Error while parsing header\n", filename);
	156	break;
	157	case AVERROR_NOFMT:
	158	fprintf(stderr, "%s: Unknown format\n", filename);
	159	break;
6f3e0b21	160	case AVERROR(EIO):
45ce5ddb	161	fprintf(stderr, "%s: I/O error occured\n"
bb270c08 DB	162	"Usually that means that input file is truncated and/or corrupted.\n",
bb270c08 DB	163	filename);
45ce5ddb	164	break;
769e10f0	165	case AVERROR(ENOMEM):
45ce5ddb KS	166	fprintf(stderr, "%s: memory allocation error occured\n", filename);
45ce5ddb KS	167	break;
24fddf48	168	case AVERROR(ENOENT):
0ba0c8de BF	169	fprintf(stderr, "%s: no such file or directory\n", filename);
0ba0c8de BF	170	break;
01310af2 FB	171	default:
	172	fprintf(stderr, "%s: Error while opening file\n", filename);
	173	break;
	174	}
	175	}
f35917b2	176
86074ed1 SS	177	void show_banner(const char *program_name, int program_birth_year)
86074ed1 SS	178	{
69c12fbb	179	fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
86074ed1 SS	180	program_name, program_birth_year);
	181	fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
	182	fprintf(stderr, " libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
	183	fprintf(stderr, " libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
	184	fprintf(stderr, " libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
2208741a	185	fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
86074ed1 SS	186	fprintf(stderr, " built on " __DATE__ " " __TIME__);
	187	#ifdef __GNUC__
	188	fprintf(stderr, ", gcc: " __VERSION__ "\n");
	189	#else
	190	fprintf(stderr, ", using a non-gcc compiler\n");
	191	#endif
	192	}
	193
	194	void show_version(const char *program_name) {
2208741a	195	/* TODO: add function interface to avutil and avformat avdevice*/
86074ed1 SS	196	printf("%s " FFMPEG_VERSION "\n", program_name);
	197	printf("libavutil %d\n"
	198	"libavcodec %d\n"
2208741a MN	199	"libavformat %d\n"
	200	"libavdevice %d\n",
	201	LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
86074ed1 SS	202	}
86074ed1 SS	203
f35917b2 SS	204	void show_license(void)
f35917b2 SS	205	{
7ead693b DB	206	#ifdef CONFIG_NONFREE
	207	printf(
	208	"This version of FFmpeg has nonfree parts compiled in.\n"
	209	"Therefore it is not legally redistributable.\n"
	210	);
	211	#elif CONFIG_GPL
f35917b2 SS	212	printf(
	213	"FFmpeg is free software; you can redistribute it and/or modify\n"
	214	"it under the terms of the GNU General Public License as published by\n"
	215	"the Free Software Foundation; either version 2 of the License, or\n"
	216	"(at your option) any later version.\n"
	217	"\n"
	218	"FFmpeg is distributed in the hope that it will be useful,\n"
	219	"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
	220	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
	221	"GNU General Public License for more details.\n"
	222	"\n"
	223	"You should have received a copy of the GNU General Public License\n"
	224	"along with FFmpeg; if not, write to the Free Software\n"
	225	"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
	226	);
	227	#else
	228	printf(
	229	"FFmpeg is free software; you can redistribute it and/or\n"
	230	"modify it under the terms of the GNU Lesser General Public\n"
	231	"License as published by the Free Software Foundation; either\n"
	232	"version 2.1 of the License, or (at your option) any later version.\n"
	233	"\n"
	234	"FFmpeg is distributed in the hope that it will be useful,\n"
	235	"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
	236	"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
	237	"Lesser General Public License for more details.\n"
	238	"\n"
	239	"You should have received a copy of the GNU Lesser General Public\n"
	240	"License along with FFmpeg; if not, write to the Free Software\n"
	241	"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
	242	);
	243	#endif
	244	}