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mpv/core/m_property.c
wm4 05e918be02 input: make input command deprecation warnings visible 
Some time ago, all old special-cased commands (like "volume 1" to change
volume by one) have been removed. These commands are still emulated
using simple text replacement. This emulation is done to not break
everyone's input.conf, especially because the input.conf provided by
standard mplayer* still uses the old commands.

Every use of a deprecated command prints a replacement warning, which
was visible only with -v. Make these warnings visible by default.

There's actually not much reason to do this, but since commands like
"volume 5 1" don't work anymore, it's better to be verbose about this.

Also simplify the replacement for "vo_fullscreen".
2013-03-26 01:29:38 +01:00

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/*
* 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 Properties
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include <libavutil/common.h>
#include "talloc.h"
#include "core/m_option.h"
#include "m_property.h"
#include "core/mp_msg.h"
#include "core/mp_common.h"
const struct m_option_type m_option_type_dummy = {
.name = "Unknown",
};
struct legacy_prop {
const char *old, *new;
};
static const struct legacy_prop legacy_props[] = {
{"switch_video", "video"},
{"switch_audio", "audio"},
{"switch_program", "program"},
{"framedropping", "framedrop"},
{"osdlevel", "osd-level"},
{0}
};
static bool translate_legacy_property(const char *name, char *buffer,
size_t buffer_size)
{
if (strlen(name) + 1 > buffer_size)
return false;
const char *old_name = name;
for (int n = 0; legacy_props[n].new; n++) {
if (strcmp(name, legacy_props[n].old) == 0) {
name = legacy_props[n].new;
break;
}
}
snprintf(buffer, buffer_size, "%s", name);
// Old names used "_" instead of "-"
for (int n = 0; buffer[n]; n++) {
if (buffer[n] == '_')
buffer[n] = '-';
}
if (strcmp(old_name, buffer) != 0) {
mp_msg(MSGT_CPLAYER, MSGL_WARN, "Warning: property '%s' is deprecated, "
"replaced with '%s'. Fix your input.conf!\n", old_name, buffer);
}
return true;
}
static int do_action(const m_option_t *prop_list, const char *name,
int action, void *arg, void *ctx)
{
const char *sep;
const m_option_t *prop;
if ((sep = strchr(name, '/')) && sep[1]) {
int len = sep - name;
char base[len + 1];
memcpy(base, name, len);
base[len] = 0;
prop = m_option_list_find(prop_list, base);
struct m_property_action_arg ka = {
.key = sep + 1,
.action = action,
.arg = arg,
};
action = M_PROPERTY_KEY_ACTION;
arg = &ka;
} else
prop = m_option_list_find(prop_list, name);
if (!prop)
return M_PROPERTY_UNKNOWN;
int (*control)(const m_option_t*, int, void*, void*) = prop->p;
int r = control(prop, action, arg, ctx);
if (action == M_PROPERTY_GET_TYPE && r < 0 &&
prop->type != &m_option_type_dummy)
{
*(struct m_option *)arg = *prop;
return M_PROPERTY_OK;
}
return r;
}
int m_property_do(const m_option_t *prop_list, const char *in_name,
int action, void *arg, void *ctx)
{
union m_option_value val = {0};
int r;
char name[64];
if (!translate_legacy_property(in_name, name, sizeof(name)))
return M_PROPERTY_UNKNOWN;
struct m_option opt = {0};
r = do_action(prop_list, name, M_PROPERTY_GET_TYPE, &opt, ctx);
if (r <= 0)
return r;
assert(opt.type);
switch (action) {
case M_PROPERTY_PRINT: {
if ((r = do_action(prop_list, name, M_PROPERTY_PRINT, arg, ctx)) >= 0)
return r;
// Fallback to m_option
if ((r = do_action(prop_list, name, M_PROPERTY_GET, &val, ctx)) <= 0)
return r;
char *str = m_option_pretty_print(&opt, &val);
m_option_free(&opt, &val);
*(char **)arg = str;
return str != NULL;
}
case M_PROPERTY_GET_STRING: {
if ((r = do_action(prop_list, name, M_PROPERTY_GET, &val, ctx)) <= 0)
return r;
char *str = m_option_print(&opt, &val);
m_option_free(&opt, &val);
*(char **)arg = str;
return str != NULL;
}
case M_PROPERTY_SET_STRING: {
// (reject 0 return value: success, but empty string with flag)
if (m_option_parse(&opt, bstr0(name), bstr0(arg), &val) <= 0)
return M_PROPERTY_ERROR;
r = do_action(prop_list, name, M_PROPERTY_SET, &val, ctx);
m_option_free(&opt, &val);
return r;
}
case M_PROPERTY_SWITCH: {
struct m_property_switch_arg *sarg = arg;
if ((r = do_action(prop_list, name, M_PROPERTY_SWITCH, arg, ctx)) !=
M_PROPERTY_NOT_IMPLEMENTED)
return r;
// Fallback to m_option
if (!opt.type->add)
return M_PROPERTY_NOT_IMPLEMENTED;
if ((r = do_action(prop_list, name, M_PROPERTY_GET, &val, ctx)) <= 0)
return r;
opt.type->add(&opt, &val, sarg->inc, sarg->wrap);
r = do_action(prop_list, name, M_PROPERTY_SET, &val, ctx);
m_option_free(&opt, &val);
return r;
}
case M_PROPERTY_SET: {
if (!opt.type->clamp) {
mp_msg(MSGT_CPLAYER, MSGL_WARN, "Property '%s' without clamp().\n",
name);
} else {
m_option_copy(&opt, &val, arg);
r = opt.type->clamp(&opt, arg);
m_option_free(&opt, &val);
if (r != 0) {
mp_msg(MSGT_CPLAYER, MSGL_ERR,
"Property '%s': invalid value.\n", name);
return M_PROPERTY_ERROR;
}
}
return do_action(prop_list, name, M_PROPERTY_SET, arg, ctx);
}
default:
return do_action(prop_list, name, action, arg, ctx);
}
}
static int m_property_do_bstr(const m_option_t *prop_list, bstr name,
int action, void *arg, void *ctx)
{
char name0[64];
if (name.len >= sizeof(name0))
return M_PROPERTY_UNKNOWN;
snprintf(name0, sizeof(name0), "%.*s", BSTR_P(name));
return m_property_do(prop_list, name0, action, arg, ctx);
}
static void append_str(char **s, int *len, bstr append)
{
MP_TARRAY_GROW(NULL, *s, *len + append.len);
memcpy(*s + *len, append.start, append.len);
*len = *len + append.len;
}
char *m_properties_expand_string(const m_option_t *prop_list, char *str0,
void *ctx)
{
char *ret = NULL;
int ret_len = 0;
bool skip = false;
int level = 0, skip_level = 0;
bstr str = bstr0(str0);
while (str.len) {
if (level > 0 && bstr_eatstart0(&str, "}")) {
if (skip && level <= skip_level)
skip = false;
level--;
} else if (bstr_startswith0(str, "${") && bstr_find0(str, "}") >= 0) {
str = bstr_cut(str, 2);
level++;
// Assume ":" and "}" can't be part of the property name
// => if ":" comes before "}", it must be for the fallback
int term_pos = bstrcspn(str, ":}");
bstr name = bstr_splice(str, 0, term_pos < 0 ? str.len : term_pos);
str = bstr_cut(str, term_pos);
bool have_fallback = bstr_eatstart0(&str, ":");
if (!skip) {
bool cond_yes = bstr_eatstart0(&name, "?");
bool cond_no = !cond_yes && bstr_eatstart0(&name, "!");
bool raw = bstr_eatstart0(&name, "=");
int method = (raw || cond_yes || cond_no)
? M_PROPERTY_GET_STRING : M_PROPERTY_PRINT;
char *s = NULL;
int r = m_property_do_bstr(prop_list, name, method, &s, ctx);
if (cond_yes || cond_no) {
skip = (!!s != cond_yes);
} else {
skip = !!s;
char *append = s;
if (!s && !have_fallback && !raw) {
append = r == M_PROPERTY_UNAVAILABLE
? "(unavailable)" : "(error)";
}
append_str(&ret, &ret_len, bstr0(append));
}
talloc_free(s);
if (skip)
skip_level = level;
}
} else if (level == 0 && bstr_eatstart0(&str, "$>")) {
append_str(&ret, &ret_len, str);
break;
} else {
char c;
// Other combinations, e.g. "$x", are added verbatim
if (bstr_eatstart0(&str, "$$")) {
c = '$';
} else if (bstr_eatstart0(&str, "$}")) {
c = '}';
} else {
c = str.start[0];
str = bstr_cut(str, 1);
}
if (!skip)
MP_TARRAY_APPEND(NULL, ret, ret_len, c);
}
}
MP_TARRAY_APPEND(NULL, ret, ret_len, '\0');
return ret;
}
void m_properties_print_help_list(const m_option_t *list)
{
char min[50], max[50];
int i, count = 0;
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO,
"\n Name Type Min Max\n\n");
for (i = 0; list[i].name; i++) {
const m_option_t *opt = &list[i];
if (opt->flags & M_OPT_MIN)
sprintf(min, "%-8.0f", opt->min);
else
strcpy(min, "No");
if (opt->flags & M_OPT_MAX)
sprintf(max, "%-8.0f", opt->max);
else
strcpy(max, "No");
mp_msg(MSGT_CFGPARSER, MSGL_INFO,
" %-20.20s %-15.15s %-10.10s %-10.10s\n",
opt->name,
opt->type->name,
min,
max);
count++;
}
mp_tmsg(MSGT_CFGPARSER, MSGL_INFO, "\nTotal: %d properties\n", count);
}
int m_property_int_ro(const m_option_t *prop, int action,
void *arg, int var)
{
if (action == M_PROPERTY_GET) {
*(int *)arg = var;
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_int64_ro(const struct m_option* prop, int action, void* arg,
int64_t var)
{
if (action == M_PROPERTY_GET) {
*(int64_t *)arg = var;
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_float_ro(const m_option_t *prop, int action,
void *arg, float var)
{
if (action == M_PROPERTY_GET) {
*(float *)arg = var;
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_double_ro(const m_option_t *prop, int action,
void *arg, double var)
{
if (action == M_PROPERTY_GET) {
*(double *)arg = var;
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
int m_property_strdup_ro(const struct m_option* prop, int action, void* arg,
const char *var)
{
if (action == M_PROPERTY_GET) {
if (!var)
return M_PROPERTY_UNAVAILABLE;
*(char **)arg = talloc_strdup(NULL, var);
return M_PROPERTY_OK;
}
return M_PROPERTY_NOT_IMPLEMENTED;
}
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