Major code changes... FFMPEG introduced. Project splitup into subfolders.

1 files changed, 492 insertions, 0 deletions

diff --git a/libmiav/miav_config.cc b/libmiav/miav_config.cc
new file mode 100644
index 0000000..adfa5c5
--- /dev/null
+++ b/libmiav/miav_config.cc
@@ -0,0 +1,492 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            miav_config.cc
+ *
+ *  Sat Feb 19 14:13:19 CET 2005
+ *  Copyright  2005 Bent Bisballe
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *    This file is part of MIaV.
+ *
+ *    MIaV 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.
+ *
+ *    MIaV 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 MIaV; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include <config.h>
+#include "miav_config.h"
+
+MiavConfig *config;
+
+MiavConfig::MiavConfig(char *file, Info *i)
+{
+  info = i;
+  configs = NULL;
+  
+  filename = string(file);
+
+  // Read config file
+  FILE* fp = fopen(file, "r");
+  
+  if(!fp) {
+    if(info) info->error("Error reading configuration file %s\n", file);
+    else fprintf(stderr, "Error reading configuration file %s\n", file);
+    return;
+  }
+  fseek(fp, 0, SEEK_END);
+  int fsz = ftell(fp) + 1;
+  fseek(fp, 0, SEEK_SET);
+  
+  char *raw = (char*)calloc(fsz, 1);
+  fread(raw, 1, fsz, fp);
+
+  fclose(fp);
+
+  configs = parse(raw);
+
+  free(raw);
+}
+
+MiavConfig::~MiavConfig()
+{
+  _cfg *die = NULL;
+  _cfg *cfg = configs;
+
+  while(cfg) {
+    if(die) free(die);
+    die = cfg;
+    cfg = cfg->next;
+  }
+  if(die) free(die);
+}
+
+/**
+ * Prints a reasonable error message when a parse error occurres.
+ */
+void MiavConfig::parseError(char* msg, _cfg* cfg)
+{
+  if(info) info->error("Error parsing file %s at line %d:\n\t%s\n\t%s\n", 
+                       filename.c_str(), 
+                       cfg->line,
+                       cfg->orig,
+                       msg);
+  else fprintf(stderr, "Error parsing file %s at line %d:\n\t%s\n\t%s\n",
+               filename.c_str(), 
+               cfg->line,
+               cfg->orig,
+               msg);
+}
+
+_cfg* MiavConfig::readLines(char* raw)
+{
+  int line = 1;
+  
+  _cfg *first = (_cfg*)calloc(1, sizeof(_cfg));
+  _cfg *current = first;
+  _cfg *next = NULL;
+
+  char *nl = strchr(raw, '\n');
+
+  while(nl != NULL) {
+    int len = nl - raw;
+
+    current->line = line;
+
+    current->orig = (char*) calloc(len + 1, 1);
+    strncpy(current->orig, raw, len);
+
+    // Find next newline
+    raw = nl+1;
+    nl = strchr(raw, '\n');
+
+    line++;
+
+    // Add _cfg
+    if(nl != NULL) {
+      next = (_cfg*)calloc(1, sizeof(_cfg));
+      current->next = next;
+      current = next;
+    } else {
+      current->next = NULL;
+    }
+  }
+
+  return first;
+}
+
+_cfg* MiavConfig::parseLines(_cfg *cfg)
+{
+  if(cfg == NULL) return NULL;
+
+  char *l = cfg->left = (char*)calloc(1, strlen(cfg->orig));
+  char *r = cfg->right = (char*)calloc(1, strlen(cfg->orig));
+
+  char *p = cfg->orig;
+
+  // Skip leftmost whitespace
+  while(p < cfg->orig + strlen(cfg->orig) && strchr("\t ", *p)) {
+    p++;
+  }
+
+  // Empty line, with whitespaces
+  if(p == cfg->orig + strlen(cfg->orig)) {
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  // Parse left side
+  while(p < cfg->orig + strlen(cfg->orig) && !strchr("\t ", *p)) {
+    if(strchr("#", *p)) {
+      if(l != cfg->left) parseError("Incomplete line.", cfg);
+      _cfg* next = cfg->next;
+      free(cfg->orig);
+      free(cfg->left);
+      free(cfg->right);
+      free(cfg);
+      return parseLines(next);
+    }
+
+    if(strchr("=", *p)) break;
+
+    if(strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_", *p)) {
+      *l = *p;
+      l++;
+    } else {
+      char buf[256];
+      sprintf(buf, "Invalid left hand side character at [%s].", p);
+      parseError(buf, cfg);
+      _cfg* next = cfg->next;
+      free(cfg->orig);
+      free(cfg->left);
+      free(cfg->right);
+      free(cfg);
+      return parseLines(next);
+    }
+
+    p++;
+  }
+
+  // Skip whitespace
+  while(p < cfg->orig + strlen(cfg->orig) && strchr("\t ", *p)) {
+    p++;
+  }
+
+  if(*p != '=') {
+     parseError("Expected '='.", cfg);
+      _cfg* next = cfg->next;
+      free(cfg->orig);
+      free(cfg->left);
+      free(cfg->right);
+      free(cfg);
+      return parseLines(next);
+  }
+  p++; // Get past the '='
+
+  // Skip whitespace
+  while(p < cfg->orig + strlen(cfg->orig) && strchr("\t ", *p)) {
+    p++;
+  }
+
+  // Parse right hand side
+  int instring = 0;
+  while(p < cfg->orig + strlen(cfg->orig) && !(strchr("\t ", *p) && instring != 1)) {
+    if(*p == '\"') instring++;
+    if(instring > 2) {
+      parseError("Too many '\"'.", cfg);
+      _cfg* next = cfg->next;
+      free(cfg->orig);
+      free(cfg->left);
+      free(cfg->right);
+      free(cfg);
+      return parseLines(next);
+    } 
+    
+    if(instring == 1) {
+      // Accept all chars
+      *r= *p;
+      r++;
+    } else {
+      // Accept only those chars valid for the data types.
+      if(strchr("truefalseyesnoTRUEFALSEYESNO1234567890\",.-", *p)) {
+        if(*p == ',') *r= '.';
+        *r = *p;
+        r++;
+      } else if(!strchr("\n", *p)) {
+        char buf[256];
+        sprintf(buf, "Invalid right hand side character at [%s].", p);
+        parseError(buf, cfg);
+        _cfg* next = cfg->next;
+        free(cfg->orig);
+        free(cfg->left);
+        free(cfg->right);
+        free(cfg);
+        return parseLines(next);
+      }
+      if(*p == '#') break;
+    }
+
+    p++;
+  }
+
+  // Skip whitespace
+  while(p < cfg->orig + strlen(cfg->orig) && strchr("\t ", *p)) {
+    p++;
+  }
+
+  // Detect if whitespace ocurred inside righthand value.
+  if(p != cfg->orig + strlen(cfg->orig)) {
+    parseError("Invalid use of whitespace.", cfg);
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  // Check for instring (string not ended)
+  if(instring == 1) {
+    parseError("String not closed.", cfg);
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  // Check for empty line
+  if(l == cfg->left && r == cfg->right) {
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  // Check for empty left side.
+  if(l == cfg->left) {
+    parseError("Empty left side.", cfg);
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  // Check for empty right side.
+  if(r == cfg->right) {
+    parseError("Empty right side.", cfg);
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return parseLines(next);
+  }
+
+  cfg->next = parseLines(cfg->next);
+  return cfg;
+}
+
+
+_cfg *MiavConfig::createSemantics(_cfg *cfg) {
+  if(cfg == NULL) return NULL;
+
+  cfg->type = CONFIG_UNKNOWN;
+
+  // Boolean - true
+  if(strcasecmp(cfg->right, "yes") == 0 ||
+     strcasecmp(cfg->right, "true")  == 0) {
+    cfg->type = CONFIG_BOOL;
+    cfg->boolval = true;
+  }
+
+  // Boolean - false
+  if(strcasecmp(cfg->right, "no") == 0 ||
+     strcasecmp(cfg->right, "false") == 0) {
+    cfg->type = CONFIG_BOOL;
+    cfg->boolval = false;
+  }
+
+  // String
+  if(cfg->right[0] == '\"') {
+    cfg->type = CONFIG_STRING;
+    cfg->right[strlen(cfg->right) - 1] = '\0';
+    cfg->stringval = new string(cfg->right + 1);
+    
+  }
+
+  // Number
+  bool number = true;
+  char *p = cfg->right;
+  while(p < cfg->right + strlen(cfg->right)) {
+    if(!strchr("01234567890.-", *p)) number = false;
+    p++;
+  }
+    
+  // Integer
+  if(number && strstr(cfg->right, ".") == NULL ) {
+    cfg->type = CONFIG_INT;
+    cfg->intval = atoi(cfg->right);
+  }
+
+  // Float
+  if(number && strstr(cfg->right, ".") != NULL) {
+    cfg->type = CONFIG_FLOAT;
+    cfg->floatval = atof(cfg->right);
+  }
+
+  if(cfg->type == CONFIG_UNKNOWN) {
+    parseError("Unknown type (see 'man miav.conf' for valid right hand sides).", cfg);
+    _cfg* next = cfg->next;
+    free(cfg->orig);
+    free(cfg->left);
+    free(cfg->right);
+    free(cfg);
+    return createSemantics(next);
+  }
+
+  // Create name
+  cfg->name = new string(cfg->left);
+
+  cfg->next = createSemantics(cfg->next);
+  return cfg;
+}
+
+
+_cfg* MiavConfig::parse(char* raw)
+{
+  _cfg *first = readLines(raw);
+  first = parseLines(first);
+
+  first = createSemantics(first);
+
+  /*
+  _cfg* cfg = first;
+  while(cfg) {
+    printf("Node:\n");
+    printf("\tLine: [%d]\n", cfg->line);
+    printf("\tOrig: [%s]\n", cfg->orig);
+    printf("\tLeft: [%s]\n", cfg->left);
+    printf("\tRight: [%s]\n", cfg->right);
+
+    switch(cfg->type) {
+    case CONFIG_INT:
+      printf("\tInt value: %d\n", cfg->intval);
+      break;
+    case CONFIG_BOOL:
+      printf("\tBool value: %d\n", cfg->boolval);
+      break;
+    case CONFIG_FLOAT:
+      printf("\tFloat value: %f\n", cfg->floatval);
+      break;
+    case CONFIG_STRING:
+      printf("\tString value: %s\n", cfg->stringval->c_str());
+      break;
+    case CONFIG_UNKNOWN:
+      printf("\tUnknown type: %s\n", cfg->right);
+      break;
+    }
+
+    cfg= cfg->next;
+  }
+  */
+  return first;
+}
+
+int MiavConfig::readInt(char *node)
+{
+  _cfg* n = findNode(node);
+  if(n) {
+    if(n->type == CONFIG_INT) return n->intval;
+    parseError("Expected integer.", n);
+  }
+  return 0;
+}
+
+bool MiavConfig::readBool(char *node)
+{
+  _cfg* n = findNode(node); 
+  if(n) {
+    if(n->type == CONFIG_BOOL) return n->boolval;
+    if(n->type == CONFIG_INT) return (n->intval != 0);
+    parseError("Expected boolean.", n);
+  }
+  return false;
+}
+
+string *MiavConfig::readString(char *node)
+{
+  _cfg* n = findNode(node);
+  if(n) {
+    if(n->type == CONFIG_STRING) return n->stringval;
+    parseError("Expected string.", n);
+  }
+  return &emptyString;
+}
+
+float MiavConfig::readFloat(char *node)
+{
+  _cfg* n = findNode(node);
+  if(n) {
+    if(n->type == CONFIG_FLOAT) return n->floatval;
+    if(n->type == CONFIG_INT) return (float)n->intval;
+    parseError("Expected float.", n);
+  }
+  return 0.0f;
+}
+
+_cfg *MiavConfig::findNode(char* node)
+{
+  _cfg *cfg = configs;
+
+  while(cfg) {
+    if(!strcmp(node, cfg->name->c_str())) return cfg;
+    cfg = cfg->next;
+  }
+  if(info) info->error("Missing line in configuration file: \"%s\"!\n", node);
+  else fprintf(stderr, "Missing line in configuration file: \"%s\"!\n", node);
+
+  return NULL;
+}
+
+#ifdef __TEST_MIAV_CONFIG
+
+int main(int argc, char *argv[]) {
+  if(argc < 2) {
+    fprintf(stderr, "usage:\n\tmiav_config [filename]\n");
+    return 1;
+  }
+
+  MiavConfig cfg(argv[1]);
+  printf("Server user: [%s]\n", cfg.readString("server_user")->c_str());
+  printf("Resolution: [%f]\n", cfg.readFloat("screensize"));
+  printf("Resolution (as int): [%d]\n", cfg.readInt("screensize"));
+  printf("Width: [%d]\n", cfg.readInt("pixel_width"));
+  printf("Width (as float): [%f]\n", cfg.readFloat("pixel_width"));
+  printf("Frame quality: [%d]\n", cfg.readInt("frame_quality"));
+  printf("Skip frames: [%d]\n", cfg.readBool("player_skip_frames"));
+  printf("Skip frames (as int): [%d]\n", cfg.readInt("player_skip_frames"));
+  printf("Frame quality (as bool): [%d]\n", cfg.readBool("frame_quality"));
+
+}
+
+#endif/* __TEST_MIAV_CONFIG*/