cinelerra-5.1/cinelerra/tunerserver.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 <arpa/inet.h>
  23 #include "devicedvbinput.inc"
  24 #include <errno.h>
  25 #include <netdb.h>
  26 #include <netinet/in.h>
  27 #include <sys/socket.h>
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include "renderfarm.inc"
  31 #include "renderfarmclient.h"
  32 #include "tunerserver.h"
  33 #include <unistd.h>
  34
  35
  36
  37
  38 TunerServer::TunerServer(RenderFarmClientThread *client)
  39 {
  40         this->client = client;
  41         device_number = 0;
  42         port = 0;
  43         audio_pid = 0;
  44         video_pid = 0;
  45         channel = 0;
  46         table = 0;
  47         is_busy = 0;
  48         temp = 0;
  49         temp_allocated = 0;
  50         connection_closed = 0;
  51 }
  52
  53
  54 TunerServer::~TunerServer()
  55 {
  56         delete [] temp;
  57 }
  58
  59
  60
  61 void TunerServer::main_loop()
  62 {
  63         int error = 0;
  64
  65 // Send status
  66         if(is_busy)
  67         {
  68                 error = client->write_int64(1);
  69                 return;
  70         }
  71         else
  72         {
  73                 error = client->write_int64(0);
  74         }
  75
  76         is_busy = 1;
  77         while(!error)
  78         {
  79                 error = 0;
  80
  81
  82
  83                 int64_t command = client->read_int64(&error);
  84
  85
  86
  87
  88 // Assume read error was connection closing.
  89                 if(error) break;
  90
  91 //printf("TunerServerThread::run 1 command=%d\n", command);
  92
  93                 switch(command)
  94                 {
  95                         case NETTUNE_SIGNAL:
  96                         {
  97                                 int current_power = 0;
  98                                 int current_lock = 0;
  99                                 error = get_signal_strength(&current_power, &current_lock);
 100                                 error = client->write_int64(error);
 101                                 if(!error)
 102                                         error = client->write_int64(current_power);
 103                                 if(!error)
 104                                         error = client->write_int64(current_lock);
 105                                 break;
 106                         }
 107
 108                         case NETTUNE_SET_TABLE:
 109                                 table = client->read_int64(&error);
 110                                 break;
 111
 112                         case NETTUNE_SET_CHANNEL:
 113                                 channel = client->read_int64(&error);
 114                                 break;
 115
 116                         case NETTUNE_SET_AUDIO_PID:
 117                                 audio_pid = client->read_int64(&error);
 118                                 break;
 119
 120                         case NETTUNE_SET_VIDEO_PID:
 121                                 video_pid = client->read_int64(&error);
 122                                 break;
 123
 124                         case NETTUNE_READ:
 125                         {
 126 // Get requested size
 127                                 int size = client->read_int64(&error);
 128                                 if(temp_allocated < size)
 129                                 {
 130                                         delete [] temp;
 131                                         temp = new unsigned char[size];
 132                                         temp_allocated = size;
 133                                 }
 134
 135 // Get number of bytes read and buffer
 136                                 int bytes_read = read_data(temp, size);
 137                                 error = client->write_int64(bytes_read);
 138                                 if(!error)
 139                                         error = client->write_socket((char*)temp, bytes_read);
 140                                 break;
 141                         }
 142
 143                         case NETTUNE_OPEN:
 144                         {
 145                                 printf("TunerServerThread::run audio_pid=0x%x video_pid=0x%x table=%d channel=%d\n",
 146                                         audio_pid,
 147                                         video_pid,
 148                                         table,
 149                                         channel);
 150                                 error = open_tuner();
 151                                 error = client->write_int64(error);
 152                                 break;
 153                         }
 154
 155
 156                         case NETTUNE_CLOSE:
 157                                 error = 1;
 158                                 break;
 159                 }
 160         }
 161
 162         printf("TunerServerThread::run: connection closed\n");
 163
 164         close_tuner();
 165         is_busy = 0;
 166 }
 167
 168 int TunerServer::get_channel()
 169 {
 170         return channel;
 171 }
 172
 173 int TunerServer::get_table()
 174 {
 175         return table;
 176 }
 177
 178 int TunerServer::get_audio_pid()
 179 {
 180         return audio_pid;
 181 }
 182
 183 int TunerServer::get_video_pid()
 184 {
 185         return video_pid;
 186 }
 187
 188 int TunerServer::get_device_number()
 189 {
 190         return device_number;
 191 }
 192
 193
 194 int TunerServer::open_tuner()
 195 {
 196         return 1;
 197 }
 198
 199 int TunerServer::close_tuner()
 200 {
 201         return 1;
 202 }
 203
 204
 205 int TunerServer::get_signal_strength(int *current_power, int *current_lock)
 206 {
 207         return 1;
 208 }
 209
 210 int TunerServer::read_data(unsigned char *data, int size)
 211 {
 212         return 0;
 213 }
 214
 215
 216
 217