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authorwm4 <wm4@nowhere>2013-12-17 02:02:25 +0100
committerwm4 <wm4@nowhere>2013-12-17 02:07:57 +0100
commiteb15151705d47d23da844449126cc6b4879f110e (patch)
tree661866ee9e73bc893c7963660aae01db503e99aa /options
parent793f85945fc07db905e54390c065ae51b9eeef9b (diff)
downloadmpv-eb15151705d47d23da844449126cc6b4879f110e.tar.bz2
mpv-eb15151705d47d23da844449126cc6b4879f110e.tar.xz
Move options/config related files from mpvcore/ to options/
Since m_option.h and options.h are extremely often included, a lot of files have to be changed. Moving path.c/h to options/ is a bit questionable, but since this is mainly about access to config files (which are also handled in options/), it's probably ok.
Diffstat (limited to 'options')
-rw-r--r--options/m_config.c755
-rw-r--r--options/m_config.h216
-rw-r--r--options/m_option.c2477
-rw-r--r--options/m_option.h648
-rw-r--r--options/m_property.c382
-rw-r--r--options/m_property.h142
-rw-r--r--options/options.c886
-rw-r--r--options/options.h297
-rw-r--r--options/parse_commandline.c294
-rw-r--r--options/parse_commandline.h33
-rw-r--r--options/parse_configfile.c277
-rw-r--r--options/parse_configfile.h27
-rw-r--r--options/path.c238
-rw-r--r--options/path.h75
14 files changed, 6747 insertions, 0 deletions
diff --git a/options/m_config.c b/options/m_config.c
new file mode 100644
index 0000000000..5040482c84
--- /dev/null
+++ b/options/m_config.c
@@ -0,0 +1,755 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/// \file
+/// \ingroup Config
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+#include <stdbool.h>
+
+#include "talloc.h"
+
+#include "m_config.h"
+#include "options/m_option.h"
+#include "mpvcore/mp_msg.h"
+
+static const union m_option_value default_value;
+
+// Profiles allow to predefine some sets of options that can then
+// be applied later on with the internal -profile option.
+#define MAX_PROFILE_DEPTH 20
+
+struct m_profile {
+ struct m_profile *next;
+ char *name;
+ char *desc;
+ int num_opts;
+ // Option/value pair array.
+ char **opts;
+};
+
+// In the file local case, this contains the old global value.
+struct m_opt_backup {
+ struct m_opt_backup *next;
+ struct m_config_option *co;
+ void *backup;
+};
+
+static int parse_include(struct m_config *config, struct bstr param, bool set,
+ int flags)
+{
+ if (param.len == 0)
+ return M_OPT_MISSING_PARAM;
+ if (!set)
+ return 1;
+ char *filename = bstrdup0(NULL, param);
+ config->includefunc(config, filename, flags);
+ talloc_free(filename);
+ return 1;
+}
+
+static int parse_profile(struct m_config *config, const struct m_option *opt,
+ struct bstr name, struct bstr param, bool set, int flags)
+{
+ if (!bstrcmp0(param, "help")) {
+ struct m_profile *p;
+ if (!config->profiles) {
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO,
+ "No profiles have been defined.\n");
+ return M_OPT_EXIT - 1;
+ }
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Available profiles:\n");
+ for (p = config->profiles; p; p = p->next)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\t%s\t%s\n", p->name,
+ p->desc ? p->desc : "");
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
+ return M_OPT_EXIT - 1;
+ }
+
+ char **list = NULL;
+ int r = m_option_type_string_list.parse(opt, name, param, &list);
+ if (r < 0)
+ return r;
+ if (!list || !list[0])
+ return M_OPT_INVALID;
+ for (int i = 0; list[i]; i++) {
+ struct m_profile *p = m_config_get_profile0(config, list[i]);
+ if (!p) {
+ mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Unknown profile '%s'.\n",
+ list[i]);
+ r = M_OPT_INVALID;
+ } else if (set)
+ m_config_set_profile(config, p, flags);
+ }
+ m_option_free(opt, &list);
+ return r;
+}
+
+static int show_profile(struct m_config *config, bstr param)
+{
+ struct m_profile *p;
+ int i, j;
+ if (!param.len)
+ return M_OPT_MISSING_PARAM;
+ if (!(p = m_config_get_profile(config, param))) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Unknown profile '%.*s'.\n",
+ BSTR_P(param));
+ return M_OPT_EXIT - 1;
+ }
+ if (!config->profile_depth)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Profile %s: %s\n", p->name,
+ p->desc ? p->desc : "");
+ config->profile_depth++;
+ for (i = 0; i < p->num_opts; i++) {
+ char spc[config->profile_depth + 1];
+ for (j = 0; j < config->profile_depth; j++)
+ spc[j] = ' ';
+ spc[config->profile_depth] = '\0';
+
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "%s%s=%s\n", spc,
+ p->opts[2 * i], p->opts[2 * i + 1]);
+
+ if (config->profile_depth < MAX_PROFILE_DEPTH
+ && !strcmp(p->opts[2*i], "profile")) {
+ char *e, *list = p->opts[2 * i + 1];
+ while ((e = strchr(list, ','))) {
+ int l = e - list;
+ char tmp[l+1];
+ if (!l)
+ continue;
+ memcpy(tmp, list, l);
+ tmp[l] = '\0';
+ show_profile(config, bstr0(tmp));
+ list = e + 1;
+ }
+ if (list[0] != '\0')
+ show_profile(config, bstr0(list));
+ }
+ }
+ config->profile_depth--;
+ if (!config->profile_depth)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
+ return M_OPT_EXIT - 1;
+}
+
+static int list_options(struct m_config *config)
+{
+ m_config_print_option_list(config);
+ return M_OPT_EXIT;
+}
+
+// The memcpys are supposed to work around the strict aliasing violation,
+// that would result if we just dereferenced a void** (where the void** is
+// actually casted from struct some_type* ).
+static void *substruct_read_ptr(const void *ptr)
+{
+ void *res;
+ memcpy(&res, ptr, sizeof(void*));
+ return res;
+}
+static void substruct_write_ptr(void *ptr, void *val)
+{
+ memcpy(ptr, &val, sizeof(void*));
+}
+
+static void add_options(struct m_config *config,
+ const char *parent_name,
+ void *optstruct,
+ const void *optstruct_def,
+ const struct m_option *defs);
+
+static void config_destroy(void *p)
+{
+ struct m_config *config = p;
+ m_config_restore_backups(config);
+ for (int n = 0; n < config->num_opts; n++)
+ m_option_free(config->opts[n].opt, config->opts[n].data);
+}
+
+struct m_config *m_config_new(void *talloc_ctx, size_t size,
+ const void *defaults,
+ const struct m_option *options)
+{
+ struct m_config *config = talloc(talloc_ctx, struct m_config);
+ talloc_set_destructor(config, config_destroy);
+ *config = (struct m_config) {0};
+ // size==0 means a dummy object is created
+ if (size) {
+ config->optstruct = talloc_zero_size(config, size);
+ if (defaults)
+ memcpy(config->optstruct, defaults, size);
+ }
+ if (options)
+ add_options(config, "", config->optstruct, defaults, options);
+ return config;
+}
+
+struct m_config *m_config_from_obj_desc(void *talloc_ctx,
+ struct m_obj_desc *desc)
+{
+ return m_config_new(talloc_ctx, desc->priv_size, desc->priv_defaults,
+ desc->options);
+}
+
+// Like m_config_from_obj_desc(), but don't allocate option struct.
+struct m_config *m_config_from_obj_desc_noalloc(void *talloc_ctx,
+ struct m_obj_desc *desc)
+{
+ return m_config_new(talloc_ctx, 0, desc->priv_defaults, desc->options);
+}
+
+int m_config_set_obj_params(struct m_config *conf, char **args)
+{
+ for (int n = 0; args && args[n * 2 + 0]; n++) {
+ int r = m_config_set_option(conf, bstr0(args[n * 2 + 0]),
+ bstr0(args[n * 2 + 1]));
+ if (r < 0)
+ return r;
+ }
+ return 0;
+}
+
+int m_config_apply_defaults(struct m_config *config, const char *name,
+ struct m_obj_settings *defaults)
+{
+ int r = 0;
+ for (int n = 0; defaults && defaults[n].name; n++) {
+ struct m_obj_settings *entry = &defaults[n];
+ if (name && strcmp(entry->name, name) == 0) {
+ r = m_config_set_obj_params(config, entry->attribs);
+ break;
+ }
+ }
+ return r;
+}
+
+static void ensure_backup(struct m_config *config, struct m_config_option *co)
+{
+ if (co->opt->type->flags & M_OPT_TYPE_HAS_CHILD)
+ return;
+ if (co->opt->flags & M_OPT_GLOBAL)
+ return;
+ if (!co->data)
+ return;
+ for (struct m_opt_backup *cur = config->backup_opts; cur; cur = cur->next) {
+ if (cur->co->data == co->data) // comparing data ptr catches aliases
+ return;
+ }
+ struct m_opt_backup *bc = talloc_ptrtype(NULL, bc);
+ *bc = (struct m_opt_backup) {
+ .co = co,
+ .backup = talloc_zero_size(bc, co->opt->type->size),
+ };
+ m_option_copy(co->opt, bc->backup, co->data);
+ bc->next = config->backup_opts;
+ config->backup_opts = bc;
+}
+
+void m_config_restore_backups(struct m_config *config)
+{
+ while (config->backup_opts) {
+ struct m_opt_backup *bc = config->backup_opts;
+ config->backup_opts = bc->next;
+
+ m_option_copy(bc->co->opt, bc->co->data, bc->backup);
+ m_option_free(bc->co->opt, bc->backup);
+ talloc_free(bc);
+ }
+}
+
+void m_config_backup_opt(struct m_config *config, const char *opt)
+{
+ struct m_config_option *co = m_config_get_co(config, bstr0(opt));
+ if (co) {
+ ensure_backup(config, co);
+ } else {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %s not found.\n", opt);
+ }
+}
+
+void m_config_backup_all_opts(struct m_config *config)
+{
+ for (int n = 0; n < config->num_opts; n++)
+ ensure_backup(config, &config->opts[n]);
+}
+
+// Given an option --opt, add --no-opt (if applicable).
+static void add_negation_option(struct m_config *config,
+ struct m_config_option *orig,
+ const char *parent_name)
+{
+ const struct m_option *opt = orig->opt;
+ int value;
+ if (opt->type == CONF_TYPE_FLAG) {
+ value = opt->min;
+ } else if (opt->type == CONF_TYPE_CHOICE) {
+ // Find out whether there's a "no" choice.
+ // m_option_parse() should be used for this, but it prints
+ // unsilenceable error messages.
+ struct m_opt_choice_alternatives *alt = opt->priv;
+ for ( ; alt->name; alt++) {
+ if (strcmp(alt->name, "no") == 0)
+ break;
+ }
+ if (!alt->name)
+ return;
+ value = alt->value;
+ } else {
+ return;
+ }
+ struct m_option *no_opt = talloc_ptrtype(config, no_opt);
+ *no_opt = (struct m_option) {
+ .name = opt->name,
+ .type = CONF_TYPE_STORE,
+ .flags = opt->flags & (M_OPT_NOCFG | M_OPT_GLOBAL | M_OPT_PRE_PARSE),
+ .is_new_option = opt->is_new_option,
+ .p = opt->p,
+ .offset = opt->offset,
+ .max = value,
+ };
+ // Add --no-sub-opt
+ struct m_config_option co = *orig;
+ co.name = talloc_asprintf(config, "no-%s", orig->name);
+ co.opt = no_opt;
+ co.is_generated = true;
+ MP_TARRAY_APPEND(config, config->opts, config->num_opts, co);
+ // Add --sub-no-opt (unfortunately needed for: "--sub=...:no-opt")
+ if (parent_name[0]) {
+ co.name = talloc_asprintf(config, "%s-no-%s", parent_name, opt->name);
+ MP_TARRAY_APPEND(config, config->opts, config->num_opts, co);
+ }
+}
+
+static void m_config_add_option(struct m_config *config,
+ const char *parent_name,
+ void *optstruct,
+ const void *optstruct_def,
+ const struct m_option *arg);
+
+static void add_options(struct m_config *config,
+ const char *parent_name,
+ void *optstruct,
+ const void *optstruct_def,
+ const struct m_option *defs)
+{
+ for (int i = 0; defs && defs[i].name; i++)
+ m_config_add_option(config, parent_name, optstruct, optstruct_def, &defs[i]);
+}
+
+static void m_config_add_option(struct m_config *config,
+ const char *parent_name,
+ void *optstruct,
+ const void *optstruct_def,
+ const struct m_option *arg)
+{
+ assert(config != NULL);
+ assert(arg != NULL);
+
+ struct m_config_option co = {
+ .opt = arg,
+ .name = arg->name,
+ };
+
+ if (arg->is_new_option) {
+ if (optstruct)
+ co.data = (char *)optstruct + arg->offset;
+ if (optstruct_def)
+ co.default_data = (char *)optstruct_def + arg->offset;
+ } else {
+ co.data = arg->p;
+ co.default_data = arg->p;
+ }
+
+ if (arg->defval)
+ co.default_data = arg->defval;
+
+ if (!co.default_data)
+ co.default_data = &default_value;
+
+ // Fill in the full name
+ if (!co.name[0]) {
+ co.name = parent_name;
+ } else if (parent_name[0]) {
+ co.name = talloc_asprintf(config, "%s-%s", parent_name, co.name);
+ }
+
+ // Option with children -> add them
+ if (arg->type->flags & M_OPT_TYPE_HAS_CHILD) {
+ if (arg->type->flags & M_OPT_TYPE_USE_SUBSTRUCT) {
+ const struct m_sub_options *subopts = arg->priv;
+
+ void *new_optstruct = NULL;
+ if (co.data) {
+ new_optstruct = m_config_alloc_struct(config, subopts);
+ substruct_write_ptr(co.data, new_optstruct);
+ }
+
+ const void *new_optstruct_def = substruct_read_ptr(co.default_data);
+ if (!new_optstruct_def)
+ new_optstruct_def = subopts->defaults;
+
+ add_options(config, co.name, new_optstruct,
+ new_optstruct_def, subopts->opts);
+ } else {
+ const struct m_option *sub = arg->p;
+ add_options(config, co.name, optstruct, optstruct_def, sub);
+ }
+ } else {
+ // Initialize options
+ if (co.data && co.default_data) {
+ if (arg->type->flags & M_OPT_TYPE_DYNAMIC) {
+ // Would leak memory by overwriting *co.data repeatedly.
+ for (int i = 0; i < config->num_opts; i++) {
+ if (co.data == config->opts[i].data)
+ assert(0);
+ }
+ }
+ // In case this is dynamic data, it has to be allocated and copied.
+ union m_option_value temp = {0};
+ memcpy(&temp, co.default_data, arg->type->size);
+ memset(co.data, 0, arg->type->size);
+ m_option_copy(arg, co.data, &temp);
+ }
+ }
+
+ if (arg->name[0]) // no own name -> hidden
+ MP_TARRAY_APPEND(config, config->opts, config->num_opts, co);
+
+ add_negation_option(config, &co, parent_name);
+}
+
+struct m_config_option *m_config_get_co(const struct m_config *config,
+ struct bstr name)
+{
+
+ for (int n = 0; n < config->num_opts; n++) {
+ struct m_config_option *co = &config->opts[n];
+ struct bstr coname = bstr0(co->name);
+ if ((co->opt->type->flags & M_OPT_TYPE_ALLOW_WILDCARD)
+ && bstr_endswith0(coname, "*")) {
+ coname.len--;
+ if (bstrcmp(bstr_splice(name, 0, coname.len), coname) == 0)
+ return co;
+ } else if (bstrcmp(coname, name) == 0)
+ return co;
+ }
+ return NULL;
+}
+
+const char *m_config_get_positional_option(const struct m_config *config, int p)
+{
+ int pos = 0;
+ for (int n = 0; n < config->num_opts; n++) {
+ struct m_config_option *co = &config->opts[n];
+ if (!co->is_generated) {
+ if (pos == p)
+ return co->name;
+ pos++;
+ }
+ }
+ return NULL;
+}
+
+static int parse_subopts(struct m_config *config, char *name, char *prefix,
+ struct bstr param, int flags);
+
+static int m_config_parse_option(struct m_config *config, struct bstr name,
+ struct bstr param, int flags)
+{
+ assert(config != NULL);
+ assert(name.len != 0);
+ bool set = !(flags & M_SETOPT_CHECK_ONLY);
+
+ struct m_config_option *co = m_config_get_co(config, name);
+ if (!co)
+ return M_OPT_UNKNOWN;
+
+ // This is the only mandatory function
+ assert(co->opt->type->parse);
+
+ if ((flags & M_SETOPT_PRE_PARSE_ONLY) && !(co->opt->flags & M_OPT_PRE_PARSE))
+ return 0;
+
+ if ((flags & M_SETOPT_PRESERVE_CMDLINE) && co->is_set_from_cmdline)
+ set = false;
+
+ // Check if this option isn't forbidden in the current mode
+ if ((flags & M_SETOPT_FROM_CONFIG_FILE) && (co->opt->flags & M_OPT_NOCFG)) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR,
+ "The %.*s option can't be used in a config file.\n",
+ BSTR_P(name));
+ return M_OPT_INVALID;
+ }
+ if (flags & M_SETOPT_BACKUP) {
+ if (co->opt->flags & M_OPT_GLOBAL) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR,
+ "The %.*s option is global and can't be set per-file.\n",
+ BSTR_P(name));
+ return M_OPT_INVALID;
+ }
+ if (set)
+ ensure_backup(config, co);
+ }
+
+ if (config->includefunc && bstr_equals0(name, "include"))
+ return parse_include(config, param, set, flags);
+ if (config->use_profiles && bstr_equals0(name, "profile"))
+ return parse_profile(config, co->opt, name, param, set, flags);
+ if (config->use_profiles && bstr_equals0(name, "show-profile"))
+ return show_profile(config, param);
+ if (bstr_equals0(name, "list-options"))
+ return list_options(config);
+
+ // Option with children are a bit different to parse
+ if (co->opt->type->flags & M_OPT_TYPE_HAS_CHILD) {
+ char prefix[110];
+ assert(strlen(co->name) < 100);
+ sprintf(prefix, "%s-", co->name);
+ return parse_subopts(config, (char *)co->name, prefix, param, flags);
+ }
+
+ int r = m_option_parse(co->opt, name, param, set ? co->data : NULL);
+
+ if (r >= 0 && set && (flags & M_SETOPT_FROM_CMDLINE)) {
+ co->is_set_from_cmdline = true;
+ // Mark aliases too
+ if (co->data) {
+ for (int n = 0; n < config->num_opts; n++) {
+ struct m_config_option *co2 = &config->opts[n];
+ if (co2->data == co->data)
+ co2->is_set_from_cmdline = true;
+ }
+ }
+ }
+
+ return r;
+}
+
+static int parse_subopts(struct m_config *config, char *name, char *prefix,
+ struct bstr param, int flags)
+{
+ char **lst = NULL;
+ // Split the argument into child options
+ int r = m_option_type_subconfig.parse(NULL, bstr0(""), param, &lst);
+ if (r < 0)
+ return r;
+ // Parse the child options
+ for (int i = 0; lst && lst[2 * i]; i++) {
+ // Build the full name
+ char n[110];
+ if (snprintf(n, 110, "%s%s", prefix, lst[2 * i]) > 100)
+ abort();
+ r = m_config_parse_option(config,bstr0(n), bstr0(lst[2 * i + 1]), flags);
+ if (r < 0) {
+ if (r > M_OPT_EXIT) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR,
+ "Error parsing suboption %s/%s (%s)\n",
+ name, lst[2 * i], m_option_strerror(r));
+ r = M_OPT_INVALID;
+ }
+ break;
+ }
+ }
+ talloc_free(lst);
+ return r;
+}
+
+int m_config_parse_suboptions(struct m_config *config, char *name,
+ char *subopts)
+{
+ if (!subopts || !*subopts)
+ return 0;
+ int r = parse_subopts(config, name, "", bstr0(subopts), 0);
+ if (r < 0 && r > M_OPT_EXIT) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Error parsing suboption %s (%s)\n",
+ name, m_option_strerror(r));
+ r = M_OPT_INVALID;
+ }
+ return r;
+}
+
+int m_config_set_option_ext(struct m_config *config, struct bstr name,
+ struct bstr param, int flags)
+{
+ int r = m_config_parse_option(config, name, param, flags);
+ if (r < 0 && r > M_OPT_EXIT) {
+ mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Error parsing option %.*s (%s)\n",
+ BSTR_P(name), m_option_strerror(r));
+ r = M_OPT_INVALID;
+ }
+ return r;
+}
+
+int m_config_set_option(struct m_config *config, struct bstr name,
+ struct bstr param)
+{
+ return m_config_set_option_ext(config, name, param, 0);
+}
+
+const struct m_option *m_config_get_option(const struct m_config *config,
+ struct bstr name)
+{
+ assert(config != NULL);
+
+ struct m_config_option *co = m_config_get_co(config, name);
+ return co ? co->opt : NULL;
+}
+
+int m_config_option_requires_param(struct m_config *config, bstr name)
+{
+ const struct m_option *opt = m_config_get_option(config, name);
+ if (opt) {
+ if (bstr_endswith0(name, "-clr"))
+ return 0;
+ return m_option_required_params(opt);
+ }
+ return M_OPT_UNKNOWN;
+}
+
+void m_config_print_option_list(const struct m_config *config)
+{
+ char min[50], max[50];
+ int count = 0;
+ const char *prefix = config->is_toplevel ? "--" : "";
+
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "Options:\n\n");
+ for (int i = 0; i < config->num_opts; i++) {
+ struct m_config_option *co = &config->opts[i];
+ const struct m_option *opt = co->opt;
+ if (opt->type->flags & M_OPT_TYPE_HAS_CHILD)
+ continue;
+ if (co->is_generated)
+ continue;
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s%-30.30s", prefix, co->name);
+ if (opt->type == &m_option_type_choice) {
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " Choices:");
+ struct m_opt_choice_alternatives *alt = opt->priv;
+ for (int n = 0; alt[n].name; n++)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s", alt[n].name);
+ if (opt->flags & (M_OPT_MIN | M_OPT_MAX))
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " (or an integer)");
+ } else {
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %s", co->opt->type->name);
+ }
+ if (opt->flags & (M_OPT_MIN | M_OPT_MAX)) {
+ snprintf(min, sizeof(min), "any");
+ snprintf(max, sizeof(max), "any");
+ if (opt->flags & M_OPT_MIN)
+ snprintf(min, sizeof(min), "%.14g", opt->min);
+ if (opt->flags & M_OPT_MAX)
+ snprintf(max, sizeof(max), "%.14g", opt->max);
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " (%s to %s)", min, max);
+ }
+ char *def = NULL;
+ if (co->default_data)
+ def = m_option_print(co->opt, co->default_data);
+ if (def) {
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " (default: %s)", def);
+ talloc_free(def);
+ }
+ if (opt->flags & CONF_GLOBAL)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " [global]");
+ if (opt->flags & CONF_NOCFG)
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, " [nocfg]");
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\n");
+ count++;
+ }
+ mp_msg(MSGT_CFGPARSER, MSGL_INFO, "\nTotal: %d options\n", count);
+}
+
+struct m_profile *m_config_get_profile(const struct m_config *config, bstr name)
+{
+ for (struct m_profile *p = config->profiles; p; p = p->next) {
+ if (bstr_equals0(name, p->name))
+ return p;
+ }
+ return NULL;
+}
+
+struct m_profile *m_config_get_profile0(const struct m_config *config,
+ char *name)
+{
+ return m_config_get_profile(config, bstr0(name));
+}
+
+struct m_profile *m_config_add_profile(struct m_config *config, char *name)
+{
+ struct m_profile *p = m_config_get_profile0(config, name);
+ if (p)
+ return p;
+ p = talloc_zero(config, struct m_profile);
+ p->name = talloc_strdup(p, name);
+ p->next = config->profiles;
+ config->profiles = p;
+ return p;
+}
+
+void m_profile_set_desc(struct m_profile *p, bstr desc)
+{
+ talloc_free(p->desc);
+ p->desc = bstrdup0(p, desc);
+}
+
+int m_config_set_profile_option(struct m_config *config, struct m_profile *p,
+ bstr name, bstr val)
+{
+ int i = m_config_set_option_ext(config, name, val,
+ M_SETOPT_CHECK_ONLY |
+ M_SETOPT_FROM_CONFIG_FILE);
+ if (i < 0)
+ return i;
+ p->opts = talloc_realloc(p, p->opts, char *, 2 * (p->num_opts + 2));
+ p->opts[p->num_opts * 2] = bstrdup0(p, name);
+ p->opts[p->num_opts * 2 + 1] = bstrdup0(p, val);
+ p->num_opts++;
+ p->opts[p->num_opts * 2] = p->opts[p->num_opts * 2 + 1] = NULL;
+ return 1;
+}
+
+void m_config_set_profile(struct m_config *config, struct m_profile *p,
+ int flags)
+{
+ if (config->profile_depth > MAX_PROFILE_DEPTH) {
+ mp_msg(MSGT_CFGPARSER, MSGL_WARN,
+ "WARNING: Profile inclusion too deep.\n");
+ return;
+ }
+ config->profile_depth++;
+ for (int i = 0; i < p->num_opts; i++) {
+ m_config_set_option_ext(config,
+ bstr0(p->opts[2 * i]),
+ bstr0(p->opts[2 * i + 1]),
+ flags | M_SETOPT_FROM_CONFIG_FILE);
+ }
+ config->profile_depth--;
+}
+
+void *m_config_alloc_struct(void *talloc_ctx,
+ const struct m_sub_options *subopts)
+{
+ void *substruct = talloc_zero_size(talloc_ctx, subopts->size);
+ if (subopts->defaults)
+ memcpy(substruct, subopts->defaults, subopts->size);
+ return substruct;
+}
diff --git a/options/m_config.h b/options/m_config.h
new file mode 100644
index 0000000000..8a8865d68e
--- /dev/null
+++ b/options/m_config.h
@@ -0,0 +1,216 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPLAYER_M_CONFIG_H
+#define MPLAYER_M_CONFIG_H
+
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "mpvcore/bstr.h"
+
+// m_config provides an API to manipulate the config variables in MPlayer.
+// It makes use of the Options API to provide a context stack that
+// allows saving and later restoring the state of all variables.
+
+typedef struct m_profile m_profile_t;
+struct m_option;
+struct m_option_type;
+struct m_sub_options;
+struct m_obj_desc;
+struct m_obj_settings;
+
+// Config option
+struct m_config_option {
+ bool is_generated : 1; // Automatically added ("no-" options)
+ bool is_set_from_cmdline : 1; // Set by user from command line
+ const char *name; // Full name (ie option-subopt)
+ const struct m_option *opt; // Option description
+ void *data; // Raw value of the option
+ const void *default_data; // Raw default value
+};
+
+// Config object
+/** \ingroup Config */
+typedef struct m_config {
+ // Registered options.
+ struct m_config_option *opts; // all options, even suboptions
+ int num_opts;
+
+ // List of defined profiles.
+ struct m_profile *profiles;
+ // Depth when recursively including profiles.
+ int profile_depth;
+
+ struct m_opt_backup *backup_opts;
+
+ bool use_profiles;
+ bool is_toplevel;
+ int (*includefunc)(struct m_config *conf, char *filename, int flags);
+
+ void *optstruct; // struct mpopts or other
+} m_config_t;
+
+// Create a new config object.
+// talloc_ctx: talloc parent context for the m_config allocation
+// size: size of the optstruct (where option values are stored)
+// size==0 creates a config object with no option struct allocated
+// defaults: if not NULL, points to a struct of same type as optstruct, which
+// contains default values for all options
+// options: list of options. Each option defines a member of the optstruct
+// and a corresponding option switch or sub-option field.
+// suboptinit: if not NULL, initialize the suboption string (used for presets)
+// Note that the m_config object will keep pointers to defaults and options.
+struct m_config *m_config_new(void *talloc_ctx, size_t size,
+ const void *defaults,
+ const struct m_option *options);
+
+struct m_config *m_config_from_obj_desc(void *talloc_ctx,
+ struct m_obj_desc *desc);
+
+struct m_config *m_config_from_obj_desc_noalloc(void *talloc_ctx,
+ struct m_obj_desc *desc);
+
+int m_config_set_obj_params(struct m_config *conf, char **args);
+
+// Search for the object with the given name in the defaults list, and apply
+// its parameters.
+int m_config_apply_defaults(struct m_config *config, const char *name,
+ struct m_obj_settings *defaults);
+
+// Make sure the option is backed up. If it's already backed up, do nothing.
+// All backed up options can be restored with m_config_restore_backups().
+void m_config_backup_opt(struct m_config *config, const char *opt);
+