cinelerra/channel.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program 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  * This program 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
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "channel.h"
  23 #include "bchash.h"
  24 #include "filexml.h"
  25 #include <string.h>
  26
  27 // Channel table entry for the TV tuner
  28
  29 Channel::Channel()
  30 {
  31         reset();
  32 }
  33
  34 Channel::Channel(Channel *channel)
  35 {
  36         copy_settings(channel);
  37         copy_usage(channel);
  38 }
  39
  40 Channel::~Channel()
  41 {
  42 }
  43
  44
  45 void Channel::reset()
  46 {
  47 // GUI options
  48         use_frequency = 0;
  49         use_fine = 0;
  50         use_norm = 0;
  51         use_input = 0;
  52
  53         title[0] = 0;
  54         device_name[0] = 0;
  55         entry = 0;
  56         element = 0;
  57         freqtable = 0;
  58         fine_tune = 0;
  59         input = 0;
  60         norm = 0;
  61         device_index = 0;
  62         tuner = 0;
  63         has_scanning = 0;
  64         has_subchan = 0;
  65
  66         audio_stream = 0;
  67         video_stream = 0;
  68         audio_pid = 0x14;
  69         video_pid = 0x11;
  70 }
  71
  72 void Channel::dump()
  73 {
  74         printf("Channel::dump title=%s\n"
  75                 "device_name=%s\n"
  76                 "use_freq=%d\n"
  77                 "use_fine=%d\n"
  78                 "use_norm=%d\n"
  79                 "use_input=%d\n"
  80                 "has_scanning=%d\n"
  81                 "has_subchan=%d\n",
  82                 title,
  83                 device_name,
  84                 use_frequency,
  85                 use_fine,
  86                 use_norm,
  87                 use_input,
  88                 has_scanning,
  89                 has_subchan);
  90 }
  91
  92 Channel& Channel::operator=(Channel &channel)
  93 {
  94         printf("Channel::operator= is not supported.\n");
  95         return *this;
  96 }
  97
  98 bool Channel::operator==(Channel &channel)
  99 {
 100         if( this == &channel ) return true;
 101         return  this->entry != channel.entry ||
 102                 this->element != channel.element ||
 103                 this->freqtable != channel.freqtable ||
 104                 this->fine_tune != channel.fine_tune ||
 105                 this->input != channel.input ||
 106                 this->norm != channel.norm ||
 107                 this->device_index != channel.device_index ||
 108                 this->tuner != channel.tuner ||
 109                 this->audio_stream != channel.audio_stream ||
 110                 this->video_stream != channel.video_stream ||
 111                 this->audio_pid != channel.audio_pid ||
 112                 this->video_pid != channel.video_pid ? false : true;
 113 }
 114
 115 bool Channel::operator!=(Channel &channel)
 116 {
 117         return *this == channel ? false : true;
 118 }
 119
 120 void Channel::copy_settings(Channel *channel)
 121 {
 122         strcpy(this->title, channel->title);
 123         this->entry = channel->entry;
 124         this->element = channel->element;
 125         this->freqtable = channel->freqtable;
 126         this->fine_tune = channel->fine_tune;
 127         this->input = channel->input;
 128         this->norm = channel->norm;
 129         this->device_index = channel->device_index;
 130         this->tuner = channel->tuner;
 131         this->audio_stream = channel->audio_stream;
 132         this->video_stream = channel->video_stream;
 133         this->audio_pid = channel->audio_pid;
 134         this->video_pid = channel->video_pid;
 135 }
 136
 137 void Channel::copy_usage(Channel *channel)
 138 {
 139         this->use_frequency = channel->use_frequency;
 140         this->use_fine = channel->use_fine;
 141         this->use_norm = channel->use_norm;
 142         this->use_input = channel->use_input;
 143         this->has_scanning = channel->has_scanning;
 144         this->has_subchan = channel->has_subchan;
 145 }
 146
 147 int Channel::load(FileXML *file)
 148 {
 149         int done = 0;
 150         char *text;
 151
 152
 153         while(!done)
 154         {
 155                 done = file->read_tag();
 156                 if(!done)
 157                 {
 158                         if(file->tag.title_is("CHANNEL"))
 159                         {
 160                                 entry = file->tag.get_property("ENTRY", entry);
 161                                 element = file->tag.get_property("ELEMENT", element);
 162                                 freqtable = file->tag.get_property("FREQTABLE", freqtable);
 163                                 fine_tune = file->tag.get_property("FINE_TUNE", fine_tune);
 164                                 input = file->tag.get_property("INPUT", input);
 165                                 norm = file->tag.get_property("NORM", norm);
 166                                 device_index = file->tag.get_property("DEVICE_INDEX", device_index);
 167                                 tuner = file->tag.get_property("TUNER", tuner);
 168                                 audio_stream = file->tag.get_property("AUDIO_STREAM", audio_pid);
 169                                 video_stream = file->tag.get_property("VIDEO_STREAM", video_pid);
 170                                 audio_pid = file->tag.get_property("AUDIO_PID", audio_pid);
 171                                 video_pid = file->tag.get_property("VIDEO_PID", video_pid);
 172                                 text = file->read_text();
 173                                 strcpy(title, text);
 174                         }
 175                         else
 176                         if(file->tag.title_is("/CHANNEL"))
 177                                 return 0;
 178                 }
 179         }
 180         return done;
 181 }
 182
 183 void Channel::save(FileXML *file)
 184 {
 185         file->tag.set_title("CHANNEL");
 186         file->tag.set_property("ENTRY", entry);
 187         file->tag.set_property("ELEMENT", element);
 188         file->tag.set_property("FREQTABLE", freqtable);
 189         file->tag.set_property("FINE_TUNE", fine_tune);
 190         file->tag.set_property("INPUT", input);
 191         file->tag.set_property("NORM", norm);
 192         file->tag.set_property("DEVICE_INDEX", device_index);
 193         file->tag.set_property("TUNER", tuner);
 194         file->tag.set_property("AUDIO_STREAM", audio_stream);
 195         file->tag.set_property("VIDEO_STREAM", video_stream);
 196         file->tag.set_property("AUDIO_PID", audio_pid);
 197         file->tag.set_property("VIDEO_PID", video_pid);
 198         file->append_tag();
 199         file->append_text(title);
 200         file->tag.set_title("/CHANNEL");
 201         file->append_tag();
 202         file->append_newline();
 203 }
 204
 205
 206
 207 void Channel::load_defaults(BC_Hash *defaults)
 208 {
 209         freqtable = defaults->get("SCAN_FREQTABLE", freqtable);
 210         input = defaults->get("SCAN_INPUT", input);
 211         norm = defaults->get("SCAN_NORM", norm);
 212 }
 213
 214 void Channel::save_defaults(BC_Hash *defaults)
 215 {
 216         defaults->update("SCAN_FREQTABLE", freqtable);
 217         defaults->update("SCAN_INPUT", input);
 218         defaults->update("SCAN_NORM", norm);
 219 }
 220
 221 static inline bool is_numeric(char c) { return (c>='0' && c<='9'); }
 222 static inline bool is_separator(char c) { return (c=='.' || c=='-'); }
 223
 224 static inline void get_chan(const char *p, int &ch, int &sub)
 225 {
 226         while( *p == ' ' ) ++p;
 227         for( ch=0,sub=1; is_numeric(*p); ++p ) ch = ch*10 + *p-'0';
 228         if( !*p || !is_separator(*p) || !is_numeric(*++p) ) return;
 229         for( sub=*p-'0'; is_numeric(*++p); ) sub = sub*10 + *p-'0';
 230 }
 231
 232 int Channel::cstrcmp(const char *name)
 233 {
 234         if( !strcmp(name, title) ) return 0;
 235         int ch1, sub1;  get_chan(name, ch1, sub1);
 236         int ch2, sub2;  get_chan(title, ch2, sub2);
 237         int ret = ch1 - ch2;
 238         if( !ret ) ret = sub1 - sub2;
 239         return ret;
 240 }
 241