ptx: check for out of bound reads

[ffmpeg] / cmdutils.h

diff --git a/cmdutils.h b/cmdutils.h
index a4716cad61629214e5dacc326739f1eb43d705cf..a20b779f1a02f3db712add66ccc7be095fad9c56 100644 (file)
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -108,6 +108,17 @@ double parse_number_or_die(const char *context, const char *numstr, int type, do
  */
 int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
 
+typedef struct SpecifierOpt {
+    char *specifier;    /**< stream/chapter/program/... specifier */
+    union {
+        uint8_t *str;
+        int        i;
+        int64_t  i64;
+        float      f;
+        double   dbl;
+    } u;
+} SpecifierOpt;
+
 typedef struct {
     const char *name;
     int flags;
@@ -126,6 +137,11 @@ typedef struct {
 #define OPT_DATA   0x1000
 #define OPT_FUNC2  0x2000
 #define OPT_OFFSET 0x4000       /* option is specified as an offset in a passed optctx */
+#define OPT_SPEC   0x8000       /* option is to be stored in an array of SpecifierOpt.
+                                   Implies OPT_OFFSET. Next element after the offset is
+                                   an int containing element count in the array. */
+#define OPT_TIME  0x10000
+#define OPT_DOUBLE 0x20000
      union {
         void *dst_ptr;
         int (*func_arg)(const char *, const char *);
@@ -151,6 +167,18 @@ void show_help_options(const OptionDef *options, const char *msg, int mask, int
 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
                    void (* parse_arg_function)(void *optctx, const char*));
 
+/**
+ * Parse one given option.
+ *
+ * @return on success 1 if arg was consumed, 0 otherwise; negative number on error
+ */
+int parse_option(void *optctx, const char *opt, const char *arg, const OptionDef *options);
+
+/**
+ * Find the '-loglevel' option in the commandline args and apply it.
+ */
+void parse_loglevel(int argc, char **argv, const OptionDef *options);
+
 /**
  * Check if the given stream matches a stream specifier.
  *
@@ -254,6 +282,12 @@ void show_protocols(void);
  */
 void show_pix_fmts(void);
 
+/**
+ * Print a listing containing all the sample formats supported by the
+ * program.
+ */
+int show_sample_fmts(const char *opt, const char *arg);
+
 /**
  * Return a positive value if a line read from standard input
  * starts with [yY], otherwise return 0.