diff options
Diffstat (limited to 'contrib/ffmpeg/cmdutils.c')
| -rw-r--r-- | contrib/ffmpeg/cmdutils.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/contrib/ffmpeg/cmdutils.c b/contrib/ffmpeg/cmdutils.c new file mode 100644 index 000000000..d5095cec8 --- /dev/null +++ b/contrib/ffmpeg/cmdutils.c @@ -0,0 +1,145 @@ +/* + * 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 + */ +#define HAVE_AV_CONFIG_H +#include "avformat.h" +#include "common.h" + +#include "cmdutils.h" + +#undef exit + +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; + } + pstrcpy(buf, sizeof(buf), po->name); + if (po->flags & HAS_ARG) { + pstrcat(buf, sizeof(buf), " "); + pstrcat(buf, sizeof(buf), po->argname); + } + 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) +{ + 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 = atoi(arg); + } else if (po->flags & OPT_INT64) { + *po->u.int64_arg = atoll(arg); + } else if (po->flags & OPT_FLOAT) { + *po->u.float_arg = atof(arg); + } 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 { + parse_arg_file(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_IO: + fprintf(stderr, "%s: I/O error occured\n" + "Usually that means that input file is truncated and/or corrupted.\n", + filename); + break; + case AVERROR_NOMEM: + fprintf(stderr, "%s: memory allocation error occured\n", filename); + break; + default: + fprintf(stderr, "%s: Error while opening file\n", filename); + break; + } +} |