libdvdnav/settings.c

   1 /*
   2  * Copyright (C) 2000 Rich Wareham <richwareham@users.sourceforge.net>
   3  *
   4  * This file is part of libdvdnav, a DVD navigation library.
   5  *
   6  * libdvdnav is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * libdvdnav is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with libdvdnav; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include <inttypes.h>
  26 #include <limits.h>
  27 #include <string.h>
  28 #include <sys/time.h>
  29 #include "dvdnav/dvdnav.h"
  30 #include <dvdread/nav_types.h>
  31 #include <dvdread/ifo_types.h>
  32 #include "remap.h"
  33 #include "vm/decoder.h"
  34 #include "vm/vm.h"
  35 #include "dvdnav_internal.h"
  36
  37 /* Characteristics/setting API calls */
  38
  39 dvdnav_status_t dvdnav_get_region_mask(dvdnav_t *this, int32_t *region) {
  40   (*region) = this->vm->state.registers.SPRM[20];
  41   return DVDNAV_STATUS_OK;
  42 }
  43
  44 dvdnav_status_t dvdnav_set_region_mask(dvdnav_t *this, int32_t mask) {
  45   pthread_mutex_lock(&this->vm_lock);
  46   this->vm->state.registers.SPRM[20] = (mask & 0xff);
  47   pthread_mutex_unlock(&this->vm_lock);
  48   return DVDNAV_STATUS_OK;
  49 }
  50
  51 dvdnav_status_t dvdnav_set_readahead_flag(dvdnav_t *this, int32_t use_readahead) {
  52   this->use_read_ahead = use_readahead;
  53   return DVDNAV_STATUS_OK;
  54 }
  55
  56 dvdnav_status_t dvdnav_get_readahead_flag(dvdnav_t *this, int32_t *flag) {
  57   (*flag) = this->use_read_ahead;
  58   return DVDNAV_STATUS_OK;
  59 }
  60
  61 static dvdnav_status_t set_language_register(dvdnav_t *this, char *code, int reg) {
  62   if(!code[0] || !code[1]) {
  63     printerr("Passed illegal language code.");
  64     return DVDNAV_STATUS_ERR;
  65   }
  66
  67   pthread_mutex_lock(&this->vm_lock);
  68   this->vm->state.registers.SPRM[reg] = (code[0] << 8) | code[1];
  69   pthread_mutex_unlock(&this->vm_lock);
  70   return DVDNAV_STATUS_OK;
  71 }
  72
  73 dvdnav_status_t dvdnav_menu_language_select(dvdnav_t *this, char *code) {
  74   return set_language_register(this, code, 0);
  75 }
  76
  77 dvdnav_status_t dvdnav_audio_language_select(dvdnav_t *this, char *code) {
  78   return set_language_register(this, code, 16);
  79 }
  80
  81 dvdnav_status_t dvdnav_spu_language_select(dvdnav_t *this, char *code) {
  82   return set_language_register(this, code, 18);
  83 }
  84
  85 dvdnav_status_t dvdnav_set_PGC_positioning_flag(dvdnav_t *this, int32_t pgc) {
  86   this->pgc_based = pgc;
  87   return DVDNAV_STATUS_OK;
  88 }
  89
  90 dvdnav_status_t dvdnav_get_PGC_positioning_flag(dvdnav_t *this, int32_t *flag) {
  91   (*flag) = this->pgc_based;
  92   return DVDNAV_STATUS_OK;
  93 }