X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmdutils.h;h=1e27d8fcc2f549898623461fadd3ec9a48958f24;hb=56cce5bbff0ca4ddee6282353e091949ac91f468;hp=a6d5e7a3bb5bef53338f3b72f5c5f1153e625bd0;hpb=01310af292fe18ba700f7ba9d97ab8d43427a619;p=ffmpeg

diff --git a/cmdutils.h b/cmdutils.h
index a6d5e7a3bb5..1e27d8fcc2f 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -1,5 +1,59 @@
-#ifndef _CMD_UTILS_H
-#define _CMD_UTILS_H
+/*
+ * Various utilities for command line tools
+ * copyright (c) 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
+ */
+
+#ifndef FFMPEG_CMDUTILS_H
+#define FFMPEG_CMDUTILS_H
+
+#include <inttypes.h>
+
+/**
+ * Parses a string and returns its corresponding value as a double.
+ * Exits from the application if the string cannot be correctly
+ * parsed or the corresponding value is invalid.
+ *
+ * @param context the context of the value to be set (e.g. the
+ * corresponding commandline option name)
+ * @param numstr the string to be parsed
+ * @param type the type (OPT_INT64 or OPT_FLOAT) as which the
+ * string should be parsed
+ * @param min the minimum valid accepted value
+ * @param max the maximum valid accepted value
+ */
+double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max);
+
+/**
+ * Parses a string specifying a time and returns its corresponding
+ * value as a number of microseconds. Exits from the application if
+ * the string cannot be correctly parsed.
+ *
+ * @param context the context of the value to be set (e.g. the
+ * corresponding commandline option name)
+ * @param timestr the string to be parsed
+ * @param is_duration a flag which tells how to interpret \p timestr, if
+ * not zero \p timestr is interpreted as a duration, otherwise as a
+ * date
+ *
+ * @see av_parse_date()
+ */
+int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
 
 typedef struct {
     const char *name;
@@ -8,18 +62,62 @@ typedef struct {
 #define OPT_BOOL   0x0002
 #define OPT_EXPERT 0x0004
 #define OPT_STRING 0x0008
-    union {
-        void (*func_arg)(const char *);
+#define OPT_VIDEO  0x0010
+#define OPT_AUDIO  0x0020
+#define OPT_GRAB   0x0040
+#define OPT_INT    0x0080
+#define OPT_FLOAT  0x0100
+#define OPT_SUBTITLE 0x0200
+#define OPT_FUNC2  0x0400
+#define OPT_INT64  0x0800
+     union {
+        void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
         int *int_arg;
         char **str_arg;
+        float *float_arg;
+        int (*func2_arg)(const char *, const char *);
+        int64_t *int64_arg;
     } u;
     const char *help;
     const char *argname;
 } OptionDef;
 
-void show_help_options(const OptionDef *options);
-void parse_options(int argc, char **argv, const OptionDef *options);
-void parse_arg_file(const char *filename);
+void show_help_options(const OptionDef *options, const char *msg, int mask, int value);
+
+/**
+ * Parses the command line arguments.
+ * @param options Array with the definitions required to interpret every
+ * option of the form: -<option_name> [<argument>]
+ * @param parse_arg_function Name of the function called to process every
+ * argument without a leading option name flag. NULL if such arguments do
+ * not have to be processed.
+ */
+void parse_options(int argc, char **argv, const OptionDef *options,
+                   void (* parse_arg_function)(const char*));
+
 void print_error(const char *filename, int err);
 
-#endif /* _CMD_UTILS_H */
+/**
+ * Prints the program banner to stderr. The banner contents depend on the
+ * current version of the repository and of the libav* libraries used by
+ * the program.
+ * @param program_name name of the program
+ * @param program_birth_year year of birth of the program
+ */
+void show_banner(const char *program_name, int program_birth_year);
+
+/**
+ * Prints the version of the program to stdout. The version message
+ * depends on the current versions of the repository and of the libav*
+ * libraries.
+ * @param program_name name of the program
+ */
+void show_version(const char *program_name);
+
+/**
+ * Prints the license of the program to stdout. The license depends on
+ * the license of the libraries compiled into the program.
+ */
+void show_license(void);
+
+#endif /* FFMPEG_CMDUTILS_H */