X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmdutils.h;h=e30ea0f9afc13a975eb19bfa9d5973cc09c7d838;hb=eb39fb512a728e6b1a4b7a72a2960a341ce2c1a5;hp=3d75cfc5dde2616e51b59144d355658a24aca5cc;hpb=5b21bdabe43611385d1d55a21d5b1f607b133d29;p=ffmpeg

diff --git a/cmdutils.h b/cmdutils.h
index 3d75cfc5dde..e30ea0f9afc 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -22,6 +22,65 @@
 #ifndef FFMPEG_CMDUTILS_H
 #define FFMPEG_CMDUTILS_H
 
+#include <inttypes.h>
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libswscale/swscale.h"
+
+/**
+ * program name, defined by the program for show_version().
+ */
+extern const char program_name[];
+
+/**
+ * program birth year, defined by the program for show_banner()
+ */
+extern const int program_birth_year;
+
+extern const int this_year;
+
+extern const char **opt_names;
+extern AVCodecContext *avcodec_opts[CODEC_TYPE_NB];
+extern AVFormatContext *avformat_opts;
+extern struct SwsContext *sws_opts;
+
+/**
+ * Fallback for options that are not explicitly handled, these will be
+ * parsed through AVOptions.
+ */
+int opt_default(const char *opt, const char *arg);
+
+/**
+ * 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 parse_date()
+ */
+int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
+
 typedef struct {
     const char *name;
     int flags;
@@ -37,6 +96,7 @@ typedef struct {
 #define OPT_SUBTITLE 0x0200
 #define OPT_FUNC2  0x0400
 #define OPT_INT64  0x0800
+#define OPT_EXIT   0x1000
      union {
         void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
         int *int_arg;
@@ -62,29 +122,40 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
 void parse_options(int argc, char **argv, const OptionDef *options,
                    void (* parse_arg_function)(const char*));
 
+void set_context_opts(void *ctx, void *opts_ctx, int flags);
+
 void print_error(const char *filename, int err);
 
 /**
- * Prints the banner of the program on stderr. The banner message
- * depends on the current versions of the repository and of the libav*
- * libraries.
- * @param program_name Name of the program.
- * @param program_birth_year Year of birth of the program.
+ * 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.
  */
-void show_banner(const char *program_name, int program_birth_year);
+void show_banner(void);
 
 /**
- * Prints the version of the program on stdout. The version message
+ * 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);
+void show_version(void);
 
 /**
- * Prints on stdout the license of the program, which depends on the license of
- * the compiled libav* libraries.
+ * 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);
 
+/**
+ * Prints a listing containing all the formats supported by the
+ * program.
+ */
+void show_formats(void);
+
+/**
+ * Returns a positive value if reads from standard input a line
+ * starting with [yY], otherwise returns 0.
+ */
+int read_yesno(void);
+
 #endif /* FFMPEG_CMDUTILS_H */