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https://github.com/mpv-player/mpv
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m_option: allow using -vf-del with a name
Until now, -vf-del required a list of indexes. This was a bit inconvenient, so add support for using filter names too. Also simplify the code a bit, doing the change would have been too painful otherwise.
This commit is contained in:
wm4
parent
41d38b3a2b
commit
1dad548640
125
core/m_option.c
125
core/m_option.c
@ -1987,76 +1987,96 @@ static int parse_obj_settings(struct bstr opt, struct bstr *pstr,
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return 1;
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}
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static int obj_settings_list_num_items(m_obj_settings_t *obj_list)
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{
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int num = 0;
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while (obj_list && obj_list[num].name)
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num++;
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return num;
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}
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static void obj_settings_free_item(m_obj_settings_t *item)
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{
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talloc_free(item->name);
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free_str_list(&(item->attribs));
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}
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static void del_obj_settings_list_at(m_obj_settings_t **p_obj_list, int idx)
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{
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m_obj_settings_t *obj_list = *p_obj_list;
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int num = obj_settings_list_num_items(obj_list);
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assert(idx >= 0 && idx < num);
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obj_settings_free_item(&obj_list[idx]);
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// Note: the NULL-terminating element is moved down as part of this
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memmove(&obj_list[idx], &obj_list[idx + 1],
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sizeof(m_obj_settings_t) * (num - idx));
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*p_obj_list = talloc_realloc(NULL, obj_list, struct m_obj_settings, num);
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}
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static int obj_settings_list_del(struct bstr opt_name, struct bstr param,
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void *dst)
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{
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char **str_list = NULL;
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int r, i, idx_max = 0;
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char *rem_id = "_removed_marker_";
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char name[100];
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assert(opt_name.len < 100);
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memcpy(name, opt_name.start, opt_name.len);
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name[opt_name.len] = 0;
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const m_option_t list_opt = {
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name, NULL, CONF_TYPE_STRING_LIST,
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0, 0, 0, NULL
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};
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m_obj_settings_t *obj_list = dst ? VAL(dst) : NULL;
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int r = 1;
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if (dst && !obj_list) {
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mp_msg(MSGT_CFGPARSER, MSGL_WARN, "Option %.*s: the list is empty.\n",
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BSTR_P(opt_name));
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return 1;
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} else if (obj_list) {
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for (idx_max = 0; obj_list[idx_max].name != NULL; idx_max++)
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/* NOP */;
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}
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r = m_option_parse(&list_opt, opt_name, param, &str_list);
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if (r < 0 || !str_list)
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return r;
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int idx_max = obj_settings_list_num_items(obj_list);
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bool *mark_del = talloc_zero_array(NULL, bool, idx_max);
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for (r = 0; str_list[r]; r++) {
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int id;
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char *endptr;
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id = strtol(str_list[r], &endptr, 0);
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if (endptr == str_list[r]) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Option %.*s: invalid parameter. We need a list of integers which are the indices of the elements to remove.\n", BSTR_P(opt_name));
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m_option_free(&list_opt, &str_list);
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return M_OPT_INVALID;
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while (param.len) {
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bstr item;
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bstr_split_tok(param, ",", &item, ¶m);
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for (int n = 0; n < idx_max; n++) {
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if (!mark_del[n] && bstr_equals0(item, obj_list[n].name)) {
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mark_del[n] = true;
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goto found;
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}
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}
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if (!obj_list)
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continue;
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if (id >= idx_max || id < -idx_max) {
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bstr rest;
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long long id = bstrtoll(item, &rest, 0);
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if (rest.len == item.len) {
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mp_msg(MSGT_CFGPARSER, MSGL_WARN,
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"Option %.*s: Index %d is out of range.\n",
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"Option %.*s: item %.*s not found.\n",
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BSTR_P(opt_name), BSTR_P(item));
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continue;
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}
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if (id < 0)
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id = idx_max + id;
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if (id < 0 || id >= idx_max) {
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mp_msg(MSGT_CFGPARSER, MSGL_WARN,
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"Option %.*s: Index %lld is out of range.\n",
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BSTR_P(opt_name), id);
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continue;
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}
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if (id < 0)
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id = idx_max + id;
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talloc_free(obj_list[id].name);
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free_str_list(&(obj_list[id].attribs));
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obj_list[id].name = rem_id;
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mark_del[id] = true;
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found: ;
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}
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if (!dst) {
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m_option_free(&list_opt, &str_list);
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return 1;
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}
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for (i = 0; obj_list[i].name; i++) {
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while (obj_list[i].name == rem_id) {
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memmove(&obj_list[i], &obj_list[i + 1],
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sizeof(m_obj_settings_t) * (idx_max - i));
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idx_max--;
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if (dst) {
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for (int n = idx_max - 1; n >= 0; n--) {
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if (mark_del[n])
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del_obj_settings_list_at(&obj_list, n);
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}
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VAL(dst) = obj_list;
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}
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obj_list = talloc_realloc(NULL, obj_list, struct m_obj_settings,
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idx_max + 1);
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VAL(dst) = obj_list;
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return 1;
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talloc_free(mark_del);
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return r;
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}
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static void free_obj_settings_list(void *dst)
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@ -2068,10 +2088,8 @@ static void free_obj_settings_list(void *dst)
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return;
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d = VAL(dst);
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for (n = 0; d[n].name; n++) {
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talloc_free(d[n].name);
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free_str_list(&(d[n].attribs));
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}
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for (n = 0; d[n].name; n++)
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obj_settings_free_item(&d[n]);
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talloc_free(d);
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VAL(dst) = NULL;
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}
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@ -2110,7 +2128,8 @@ static int parse_obj_settings_list(const m_option_t *opt, struct bstr name,
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" Prepend the given list to the current list\n\n"
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" %s-del x,y,...\n"
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" Remove the given elements. Take the list element index (starting from 0).\n"
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" Negative index can be used (i.e. -1 is the last element)\n\n"
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" Negative index can be used (i.e. -1 is the last element).\n"
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" Filter names work as well.\n\n"
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" %s-clr\n"
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" Clear the current list.\n",
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BSTR_P(name), BSTR_P(suffix), prefix, prefix, prefix, prefix);
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