m_option: replace --no-video-aspect alias

Instead, add a hacky OPT_ASPECT option type, which only exists to accept
a "no" parameter, which in combination with the "--no-..." handling code
makes --no-video-aspect work again.

We can also remove the code in m_config.c, which only existed to make
"--no-aspect" (a deprecated alias) to work.

DOCS/man/options.rst

@@ -712,13 +712,14 @@ Video
 
     This option has no effect if ``--video-unscaled`` option is used.
 
-``--video-aspect=<ratio>``
+``--video-aspect=<ratio|no>``
     Override video aspect ratio, in case aspect information is incorrect or
     missing in the file being played. See also ``--no-video-aspect``.
 
-    Two values have special meaning:
+    These values have special meaning:
 
     :0:  disable aspect ratio handling, pretend the video has square pixels
+    :no: same as ``0``
     :-1: use the video stream or container aspect (default)
 
     But note that handling of these special values might change in the future.
@@ -727,10 +728,7 @@ Video
 
         - ``--video-aspect=4:3``  or ``--video-aspect=1.3333``
         - ``--video-aspect=16:9`` or ``--video-aspect=1.7777``
-
+        - ``--no-video-aspect`` or ``--video-aspect=no``
-``--no-video-aspect``
-    Ignore aspect ratio information from video file and assume the video has
-    square pixels. See also ``--video-aspect``.
 
 ``--video-aspect-method=<hybrid|bitstream|container>``
     This sets the default video aspect determination method (if the aspect is

options/m_config.c

@@ -396,20 +396,6 @@ static void m_config_add_option(struct m_config *config,
 
     if (arg->name[0]) // no own name -> hidden
         MP_TARRAY_APPEND(config, config->opts, config->num_opts, co);
-
-    if (co.opt->type == &m_option_type_alias) {
-        const char *alias = (const char *)co.opt->priv;
-        char no_alias[40];
-        snprintf(no_alias, sizeof(no_alias), "no-%s", alias);
-        if (m_config_get_co(config, bstr0(no_alias))) {
-            struct m_option *new = talloc_zero(config, struct m_option);
-            new->name = talloc_asprintf(config, "no-%s", co.name);
-            new->priv = talloc_strdup(config, no_alias);
-            new->type = &m_option_type_alias;
-            new->offset = -1;
-            m_config_add_option(config, NULL, NULL, NULL, new);
-        }
-    }
 }
 
 struct m_config_option *m_config_get_co(const struct m_config *config,
@@ -578,7 +564,8 @@ static struct m_config_option *m_config_find_negation_opt(struct m_config *confi
     // Not all choice types have this value - if they don't, then parsing them
     // will simply result in an error. Good enough.
     if (co && co->opt->type != CONF_TYPE_FLAG &&
-              co->opt->type != CONF_TYPE_CHOICE)
+              co->opt->type != CONF_TYPE_CHOICE &&
+              co->opt->type != &m_option_type_aspect)
         co = NULL;
 
     return co;

options/m_option.c

@@ -234,45 +234,6 @@ const m_option_type_t m_option_type_store = {
     .set   = store_set,
 };
 
-// Same for float types
-
-#undef VAL
-#define VAL(x) (*(float *)(x))
-
-static int parse_store_float(struct mp_log *log, const m_option_t *opt,
-                             struct bstr name, struct bstr param, void *dst)
-{
-    if (param.len == 0) {
-        if (dst)
-            VAL(dst) = opt->max;
-        return 0;
-    } else {
-        mp_err(log, "Invalid parameter for %.*s flag: %.*s\n",
-               BSTR_P(name), BSTR_P(param));
-        return M_OPT_DISALLOW_PARAM;
-    }
-}
-
-static int store_float_set(const m_option_t *opt, void *dst, struct mpv_node *src)
-{
-    if (src->format != MPV_FORMAT_FLAG)
-        return M_OPT_UNKNOWN;
-    if (!src->u.flag)
-        return M_OPT_INVALID;
-    VAL(dst) = opt->max;
-    return 1;
-}
-
-const m_option_type_t m_option_type_float_store = {
-    // can only be activated
-    .name  = "Flag",
-    .size  = sizeof(float),
-    .flags = M_OPT_TYPE_OPTIONAL_PARAM,
-    .parse = parse_store_float,
-    .copy  = copy_opt,
-    .set   = store_float_set,
-};
-
 // Integer
 
 #undef VAL
@@ -1038,6 +999,30 @@ const m_option_type_t m_option_type_float = {
     .get   = float_get,
 };
 
+static int parse_float_aspect(struct mp_log *log, const m_option_t *opt,
+                              struct bstr name, struct bstr param, void *dst)
+{
+    if (bstr_equals0(param, "no")) {
+        if (dst)
+            VAL(dst) = 0.0f;
+        return 1;
+    }
+    return parse_float(log, opt, name, param, dst);
+}
+
+const m_option_type_t m_option_type_aspect = {
+    .name  = "Aspect",
+    .size  = sizeof(float),
+    .parse = parse_float_aspect,
+    .print = print_float,
+    .pretty_print = print_float_f3,
+    .copy  = copy_opt,
+    .add = add_float,
+    .multiply = multiply_float,
+    .set   = float_set,
+    .get   = float_get,
+};
+
 ///////////// String
 
 #undef VAL

options/m_option.h

@@ -38,7 +38,6 @@ struct mpv_node;
 // Simple types
 extern const m_option_type_t m_option_type_flag;
 extern const m_option_type_t m_option_type_store;
-extern const m_option_type_t m_option_type_float_store;
 extern const m_option_type_t m_option_type_int;
 extern const m_option_type_t m_option_type_int64;
 extern const m_option_type_t m_option_type_intpair;
@@ -62,6 +61,7 @@ extern const m_option_type_t m_option_type_color;
 extern const m_option_type_t m_option_type_geometry;
 extern const m_option_type_t m_option_type_size_box;
 extern const m_option_type_t m_option_type_channels;
+extern const m_option_type_t m_option_type_aspect;
 extern const m_option_type_t m_option_type_node;
 
 // Used internally by m_config.c
@@ -207,7 +207,6 @@ struct m_sub_options {
 union m_option_value {
     int flag; // not the C type "bool"!
     int store;
-    float float_store;
     int int_;
     int64_t int64;
     int intpair[2];
@@ -562,10 +561,6 @@ extern const char m_option_path_separator;
     OPT_GENERAL(int, optname, varname, flags, .max = value,     \
                 .type = &m_option_type_store)
 
-#define OPT_FLOAT_STORE(optname, varname, flags, value)         \
-    OPT_GENERAL(float, optname, varname, flags, .max = value,   \
-                .type = &m_option_type_float_store)
-
 #define OPT_STRINGLIST(...) \
     OPT_GENERAL(char**, __VA_ARGS__, .type = &m_option_type_string_list)
 
@@ -667,6 +662,9 @@ extern const char m_option_path_separator;
 #define OPT_TRACKCHOICE(name, var) \
     OPT_CHOICE_OR_INT(name, var, 0, 0, 8190, ({"no", -2}, {"auto", -1}))
 
+#define OPT_ASPECT(...) \
+    OPT_GENERAL(float, __VA_ARGS__, .type = &m_option_type_aspect)
+
 #define OPT_STRING_VALIDATE_(optname, varname, flags, validate_fn, ...)        \
     OPT_GENERAL(char*, optname, varname, flags, __VA_ARGS__,                   \
                 .priv = MP_EXPECT_TYPE(m_opt_string_validate_fn, validate_fn))

options/options.c

@@ -395,8 +395,7 @@ const m_option_t mp_opts[] = {
 
     // -1 means auto aspect (prefer container size until aspect change)
     //  0 means square pixels
-    OPT_FLOATRANGE("video-aspect", movie_aspect, 0, -1.0, 10.0),
+    OPT_ASPECT("video-aspect", movie_aspect, 0, -1.0, 10.0),
-    OPT_FLOAT_STORE("no-video-aspect", movie_aspect, 0, 0.0),
     OPT_CHOICE("video-aspect-method", aspect_method, 0,
                ({"hybrid", 0}, {"bitstream", 1}, {"container", 2})),