fftools/cmdutils: include OPT_PERFILE in OPT_OFFSET

And analogously OPT_OFFSET in OPT_SPEC. Previously the inclusion would
be implicit and required all code to remember this.

fftools/cmdutils.c

@@ -237,13 +237,13 @@ static int write_option(void *optctx, const OptionDef *po, const char *opt,
 {
     /* new-style options contain an offset into optctx, old-style address of
      * a global var*/
-    void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
+    void *dst = po->flags & OPT_FLAG_OFFSET ?
                 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
     int *dstcount;
     double num;
     int ret;
 
-    if (po->flags & OPT_SPEC) {
+    if (po->flags & OPT_FLAG_SPEC) {
         SpecifierOpt **so = dst;
         char *p = strchr(opt, ':');
         char *str;
@@ -660,7 +660,7 @@ static int finish_group(OptionParseContext *octx, int group_idx,
 static int add_opt(OptionParseContext *octx, const OptionDef *opt,
                    const char *key, const char *val)
 {
-    int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
+    int global = !(opt->flags & OPT_PERFILE);
     OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
     int ret;
 

fftools/cmdutils.h

@@ -135,17 +135,22 @@ typedef struct OptionDef {
 #define OPT_AUDIO       (1 << 4)
 #define OPT_SUBTITLE    (1 << 5)
 #define OPT_DATA        (1 << 6)
-/* The option is per-file (currently ffmpeg-only). Implied by OPT_OFFSET or
- * OPT_SPEC. At least one of OPT_INPUT or OPT_OUTPUT must be set when this flag
- * is in use.
+/* The option is per-file (currently ffmpeg-only). At least one of OPT_INPUT or
+ * OPT_OUTPUT must be set when this flag is in use.
    */
 #define OPT_PERFILE     (1 << 7)
-/* Option is specified as an offset in a passed optctx */
-#define OPT_OFFSET      (1 << 8)
-/* Option is to be stored in an array of SpecifierOpt. Implies OPT_OFFSET.
+
+/* Option is specified as an offset in a passed optctx.
+ * Always use as OPT_OFFSET in option definitions. */
+#define OPT_FLAG_OFFSET (1 << 8)
+#define OPT_OFFSET      (OPT_FLAG_OFFSET | OPT_PERFILE)
+
+/* Option is to be stored in an array of SpecifierOpt.
    Next element after the offset is an int containing element count in the
-   array. */
-#define OPT_SPEC        (1 << 9)
+   array.
+   Always use as OPT_SPEC in option definitions. */
+#define OPT_FLAG_SPEC   (1 << 9)
+#define OPT_SPEC        (OPT_FLAG_SPEC | OPT_OFFSET)
 /* ffmpeg-only - specifies whether an OPT_PERFILE option applies to input,
  * output, or both. */
 #define OPT_INPUT       (1 << 10)

fftools/ffmpeg_opt.c

@@ -109,7 +109,7 @@ static void uninit_options(OptionsContext *o)
     while (po->name) {
         void *dst = (uint8_t*)o + po->u.off;
 
-        if (po->flags & OPT_SPEC) {
+        if (po->flags & OPT_FLAG_SPEC) {
             SpecifierOpt **so = dst;
             int i, *count = (int*)(so + 1);
             for (i = 0; i < *count; i++) {
@@ -119,7 +119,7 @@ static void uninit_options(OptionsContext *o)
             }
             av_freep(so);
             *count = 0;
-        } else if (po->flags & OPT_OFFSET && po->type == OPT_TYPE_STRING)
+        } else if (po->flags & OPT_FLAG_OFFSET && po->type == OPT_TYPE_STRING)
             av_freep(dst);
         po++;
     }
@@ -1181,8 +1181,6 @@ static int opt_filter_complex_script(void *optctx, const char *opt, const char *
 
 void show_help_default(const char *opt, const char *arg)
 {
-    /* per-file options have at least one of those set */
-    const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
     int show_advanced = 0, show_avoptions = 0;
 
     if (opt && *opt) {
@@ -1209,17 +1207,17 @@ void show_help_default(const char *opt, const char *arg)
 
     show_help_options(options, "Global options (affect whole program "
                       "instead of just one file):",
-                      0, per_file | OPT_EXIT | OPT_EXPERT, 0);
+                      0, OPT_PERFILE | OPT_EXIT | OPT_EXPERT, 0);
     if (show_advanced)
         show_help_options(options, "Advanced global options:", OPT_EXPERT,
-                          per_file | OPT_EXIT, 0);
+                          OPT_PERFILE | OPT_EXIT, 0);
 
     show_help_options(options, "Per-file main options:", 0,
                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
-                      OPT_EXIT, per_file);
+                      OPT_EXIT, OPT_PERFILE);
     if (show_advanced)
         show_help_options(options, "Advanced per-file options:",
-                          OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
+                          OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, OPT_PERFILE);
 
     show_help_options(options, "Video options:",
                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);