mirror of https://github.com/mpv-player/mpv
385 lines
11 KiB
C
385 lines
11 KiB
C
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/// \file
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/// \ingroup Properties
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include "m_option.h"
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#include "m_property.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#define ROUND(x) ((int)((x)<0 ? (x)-0.5 : (x)+0.5))
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static int do_action(const m_option_t* prop_list, const char* name,
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int action, void* arg, void *ctx) {
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const char* sep;
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const m_option_t* prop;
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m_property_action_t ka;
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int r;
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if((sep = strchr(name,'/')) && sep[1]) {
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int len = sep-name;
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char base[len+1];
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memcpy(base,name,len);
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base[len] = 0;
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prop = m_option_list_find(prop_list, base);
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ka.key = sep+1;
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ka.action = action;
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ka.arg = arg;
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action = M_PROPERTY_KEY_ACTION;
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arg = &ka;
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} else
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prop = m_option_list_find(prop_list, name);
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if(!prop) return M_PROPERTY_UNKNOWN;
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r = ((m_property_ctrl_f)prop->p)(prop,action,arg,ctx);
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if(action == M_PROPERTY_GET_TYPE && r < 0) {
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if(!arg) return M_PROPERTY_ERROR;
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*(const m_option_t**)arg = prop;
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return M_PROPERTY_OK;
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}
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return r;
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}
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int m_property_do(const m_option_t* prop_list, const char* name,
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int action, void* arg, void *ctx) {
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const m_option_t* opt;
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void* val;
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char* str;
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int r;
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switch(action) {
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case M_PROPERTY_PRINT:
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if((r = do_action(prop_list,name,M_PROPERTY_PRINT,arg,ctx)) >= 0)
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return r;
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// fallback on the default print for this type
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case M_PROPERTY_TO_STRING:
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if((r = do_action(prop_list,name,M_PROPERTY_TO_STRING,arg,ctx)) !=
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M_PROPERTY_NOT_IMPLEMENTED)
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return r;
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// fallback on the options API. Get the type, value and print.
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if((r = do_action(prop_list,name,M_PROPERTY_GET_TYPE,&opt,ctx)) <= 0)
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return r;
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val = calloc(1,opt->type->size);
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if((r = do_action(prop_list,name,M_PROPERTY_GET,val,ctx)) <= 0) {
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free(val);
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return r;
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}
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if(!arg) return M_PROPERTY_ERROR;
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str = m_option_print(opt,val);
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free(val);
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*(char**)arg = str == (char*)-1 ? NULL : str;
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return str != (char*)-1;
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case M_PROPERTY_PARSE:
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// try the property own parsing func
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if((r = do_action(prop_list,name,M_PROPERTY_PARSE,arg,ctx)) !=
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M_PROPERTY_NOT_IMPLEMENTED)
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return r;
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// fallback on the options API, get the type and parse.
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if((r = do_action(prop_list,name,M_PROPERTY_GET_TYPE,&opt,ctx)) <= 0)
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return r;
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if(!arg) return M_PROPERTY_ERROR;
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val = calloc(1,opt->type->size);
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if((r = m_option_parse(opt,opt->name,arg,val,M_CONFIG_FILE)) <= 0) {
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free(val);
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return r;
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}
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r = do_action(prop_list,name,M_PROPERTY_SET,val,ctx);
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m_option_free(opt,val);
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free(val);
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return r;
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}
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return do_action(prop_list,name,action,arg,ctx);
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}
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char* m_properties_expand_string(const m_option_t* prop_list,char* str, void *ctx) {
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int l,fr=0,pos=0,size=strlen(str)+512;
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char *p = NULL,*e,*ret = malloc(size), num_val;
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int skip = 0, lvl = 0, skip_lvl = 0;
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while(str[0]) {
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if(str[0] == '\\') {
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int sl = 1;
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switch(str[1]) {
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case 'e':
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p = "\x1b", l = 1; break;
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case 'n':
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p = "\n", l = 1; break;
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case 'r':
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p = "\r", l = 1; break;
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case 't':
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p = "\t", l = 1; break;
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case 'x':
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if(str[2]) {
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char num[3] = { str[2], str[3], 0 };
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char* end = num;
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num_val = strtol(num,&end,16);
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sl = end-num;
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l = 1;
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p = &num_val;
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} else
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l = 0;
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break;
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default:
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p = str+1, l = 1;
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}
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str+=1+sl;
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} else if(lvl > 0 && str[0] == ')') {
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if(skip && lvl <= skip_lvl) skip = 0;
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lvl--, str++, l = 0;
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} else if(str[0] == '$' && str[1] == '{' && (e = strchr(str+2,'}'))) {
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int pl = e-str-2;
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char pname[pl+1];
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memcpy(pname,str+2,pl);
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pname[pl] = 0;
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if(m_property_do(prop_list, pname,
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M_PROPERTY_PRINT, &p, ctx) >= 0 && p)
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l = strlen(p), fr = 1;
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else
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l = 0;
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str = e+1;
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} else if(str[0] == '?' && str[1] == '(' && (e = strchr(str+2,':'))) {
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lvl++;
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if(!skip) {
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int is_not = str[2] == '!';
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int pl = e - str - (is_not ? 3 : 2);
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char pname[pl+1];
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memcpy(pname, str + (is_not ? 3 : 2), pl);
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pname[pl] = 0;
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if(m_property_do(prop_list,pname,M_PROPERTY_GET,NULL,ctx) < 0) {
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if (!is_not)
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skip = 1, skip_lvl = lvl;
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}
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else if (is_not)
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skip = 1, skip_lvl = lvl;
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}
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str = e+1, l = 0;
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} else
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p = str, l = 1, str++;
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if(skip || l <= 0) continue;
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if(pos+l+1 > size) {
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size = pos+l+512;
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ret = realloc(ret,size);
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}
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memcpy(ret+pos,p,l);
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pos += l;
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if(fr) free(p), fr = 0;
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}
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ret[pos] = 0;
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return ret;
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}
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void m_properties_print_help_list(const m_option_t* list) {
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char min[50],max[50];
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int i,count = 0;
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mp_msg(MSGT_CFGPARSER, MSGL_INFO, MSGTR_PropertyListHeader);
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for(i = 0 ; list[i].name ; i++) {
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const m_option_t* opt = &list[i];
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if(opt->flags & M_OPT_MIN)
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sprintf(min,"%-8.0f",opt->min);
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else
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strcpy(min,"No");
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if(opt->flags & M_OPT_MAX)
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sprintf(max,"%-8.0f",opt->max);
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else
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strcpy(max,"No");
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mp_msg(MSGT_CFGPARSER, MSGL_INFO, " %-20.20s %-15.15s %-10.10s %-10.10s\n",
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opt->name,
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opt->type->name,
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min,
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max);
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count++;
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}
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mp_msg(MSGT_CFGPARSER, MSGL_INFO, MSGTR_TotalProperties, count);
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}
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// Some generic property implementations
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int m_property_int_ro(const m_option_t* prop,int action,
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void* arg,int var) {
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switch(action) {
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case M_PROPERTY_GET:
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if(!arg) return 0;
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*(int*)arg = var;
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return 1;
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}
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return M_PROPERTY_NOT_IMPLEMENTED;
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}
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int m_property_int_range(const m_option_t* prop,int action,
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void* arg,int* var) {
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switch(action) {
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case M_PROPERTY_SET:
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if(!arg) return 0;
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M_PROPERTY_CLAMP(prop,*(int*)arg);
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*var = *(int*)arg;
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return 1;
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case M_PROPERTY_STEP_UP:
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case M_PROPERTY_STEP_DOWN:
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*var += (arg ? *(int*)arg : 1) *
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(action == M_PROPERTY_STEP_DOWN ? -1 : 1);
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M_PROPERTY_CLAMP(prop,*var);
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return 1;
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}
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return m_property_int_ro(prop,action,arg,*var);
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}
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int m_property_choice(const m_option_t* prop,int action,
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void* arg,int* var) {
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switch(action) {
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case M_PROPERTY_STEP_UP:
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case M_PROPERTY_STEP_DOWN:
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*var += action == M_PROPERTY_STEP_UP ? 1 : prop->max;
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*var %= (int)prop->max+1;
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return 1;
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}
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return m_property_int_range(prop,action,arg,var);
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}
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int m_property_flag_ro(const m_option_t* prop,int action,
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void* arg,int var) {
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switch(action) {
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case M_PROPERTY_PRINT:
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if(!arg) return 0;
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*(char**)arg = strdup((var > prop->min) ? MSGTR_Enabled : MSGTR_Disabled);
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return 1;
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}
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return m_property_int_ro(prop,action,arg,var);
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}
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int m_property_flag(const m_option_t* prop,int action,
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void* arg,int* var) {
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switch(action) {
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case M_PROPERTY_STEP_UP:
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case M_PROPERTY_STEP_DOWN:
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*var = *var == prop->min ? prop->max : prop->min;
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return 1;
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case M_PROPERTY_PRINT:
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return m_property_flag_ro(prop, action, arg, *var);
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}
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return m_property_int_range(prop,action,arg,var);
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}
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int m_property_float_ro(const m_option_t* prop,int action,
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void* arg,float var) {
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switch(action) {
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case M_PROPERTY_GET:
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if(!arg) return 0;
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*(float*)arg = var;
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return 1;
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case M_PROPERTY_PRINT:
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if(!arg) return 0;
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*(char**)arg = malloc(20);
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sprintf(*(char**)arg,"%.2f",var);
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return 1;
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}
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return M_PROPERTY_NOT_IMPLEMENTED;
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}
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int m_property_float_range(const m_option_t* prop,int action,
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void* arg,float* var) {
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switch(action) {
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case M_PROPERTY_SET:
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if(!arg) return 0;
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M_PROPERTY_CLAMP(prop,*(float*)arg);
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*var = *(float*)arg;
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return 1;
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case M_PROPERTY_STEP_UP:
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case M_PROPERTY_STEP_DOWN:
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*var += (arg ? *(float*)arg : 0.1) *
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(action == M_PROPERTY_STEP_DOWN ? -1 : 1);
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M_PROPERTY_CLAMP(prop,*var);
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return 1;
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}
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return m_property_float_ro(prop,action,arg,*var);
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}
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int m_property_delay(const m_option_t* prop,int action,
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void* arg,float* var) {
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switch(action) {
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case M_PROPERTY_PRINT:
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if(!arg) return 0;
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*(char**)arg = malloc(20);
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sprintf(*(char**)arg,"%d ms",ROUND((*var)*1000));
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return 1;
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default:
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return m_property_float_range(prop,action,arg,var);
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}
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}
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int m_property_double_ro(const m_option_t* prop,int action,
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void* arg,double var) {
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switch(action) {
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case M_PROPERTY_GET:
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if(!arg) return 0;
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*(double*)arg = var;
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return 1;
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case M_PROPERTY_PRINT:
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if(!arg) return 0;
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*(char**)arg = malloc(20);
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sprintf(*(char**)arg,"%.2f",var);
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return 1;
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}
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return M_PROPERTY_NOT_IMPLEMENTED;
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}
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int m_property_time_ro(const m_option_t* prop,int action,
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void* arg,double var) {
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switch(action) {
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case M_PROPERTY_PRINT:
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if (!arg)
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return M_PROPERTY_ERROR;
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else {
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int h, m, s = var;
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h = s / 3600;
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s -= h * 3600;
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m = s / 60;
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s -= m * 60;
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*(char **) arg = malloc(20);
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if (h > 0)
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sprintf(*(char **) arg, "%d:%02d:%02d", h, m, s);
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else if (m > 0)
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sprintf(*(char **) arg, "%d:%02d", m, s);
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else
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sprintf(*(char **) arg, "%d", s);
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return M_PROPERTY_OK;
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}
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}
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return m_property_double_ro(prop,action,arg,var);
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}
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int m_property_string_ro(const m_option_t* prop,int action,void* arg,char* str) {
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switch(action) {
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case M_PROPERTY_GET:
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if(!arg) return 0;
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*(char**)arg = str;
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return 1;
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case M_PROPERTY_PRINT:
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if(!arg) return 0;
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*(char**)arg = str ? strdup(str) : NULL;
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return 1;
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}
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return M_PROPERTY_NOT_IMPLEMENTED;
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}
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int m_property_bitrate(const m_option_t* prop,int action,void* arg,int rate) {
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switch(action) {
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case M_PROPERTY_PRINT:
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if (!arg)
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return M_PROPERTY_ERROR;
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*(char**)arg = malloc (16);
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sprintf(*(char**)arg, "%d kbps", rate*8/1000);
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return M_PROPERTY_OK;
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}
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return m_property_int_ro(prop, action, arg, rate);
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}
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