Mercurial > msvpvf

annotate src/main.c @ 83:837c5380d6f9

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author Paper <paper@paper.us.eu.org>
date Fri, 22 Mar 2024 22:26:57 -0400
parents c06dcab17923
children 1acd477da42f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include <stdio.h>
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2 #include <stdint.h>
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3 #include <stdlib.h>
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4 #include <string.h>
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5
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6 #include <getopt.h>
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7 #include <libgen.h>
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8
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9 #include "common.h"
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10
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11 /* non-portable functions */
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12 static inline char* msvpvf_internal_strdup(const char* str) {
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13 size_t len = strlen(str) + 1;
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14
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15 char* copy = malloc(len);
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16 if (!copy)
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17 return NULL;
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18
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19 memcpy(copy, str, len);
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20 return copy;
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21 }
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22
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23 /* source needs read permissions, target needs write permissions, both must be in binary mode */
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24 static inline int copy_file(FILE* source, FILE* target) {
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25 char ch[4096];
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26
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27 while (!feof(source)) {
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28 size_t b = fread(ch, 1, sizeof(ch), source);
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29 if (b)
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30 fwrite(ch, 1, b, target);
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31 }
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32
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33 return 0;
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34 }
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35
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36 static inline const char* type_to_string(enum types type) {
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37 switch (type) {
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38 case TYPES_VF: return "Movie Studio";
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39 case TYPES_VEG: return "Vegas Pro";
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40 case TYPES_UNKNOWN:
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41 default: return "Unknown";
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42 }
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43 }
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44
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45 static inline const char* type_to_extension(enum types type) {
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46 switch (type) {
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47 case TYPES_VF: return "vf";
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48 case TYPES_VEG:
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49 case TYPES_UNKNOWN:
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50 default: return "veg";
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51 }
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52 }
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53
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54 #ifndef ARRAYSIZE
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55 #define ARRAYSIZE(x) (sizeof(x) / sizeof((x)[0]))
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56 #endif
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57
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58 static const char* help_text =
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59 "msvpvf by Paper\n"
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60 "usage: %s <input>... (arguments)\n"
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61 "\n"
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62 "arguments:\n"
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63 " -t, --type one of [vf,veg] (required)\n"
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64 " -v, --version version to convert to (required)\n"
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65 " -h, --help show this screen (optional)\n";
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66
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67 static struct option options_long[] = {
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68 {"version", required_argument, NULL, 'v'},
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69 {"type", required_argument, NULL, 't'},
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70 {"help", 0, NULL, 'h'}
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71 };
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72
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73 int main(int argc, char *argv[]) {
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74 uint8_t version = 0;
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75 enum types type = TYPES_UNKNOWN;
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76
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77 int c;
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78 int option_index = 0;
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79 while ((c = getopt_long(argc, argv, "v:t:h", options_long, &option_index)) != -1) {
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80 /* option argument */
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81 switch (c) {
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82 case 'v':
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83 version = atoi(optarg);
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84 break;
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85 case 't':
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86 if (!strcmp(optarg, "vf")) {
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87 type = TYPES_VF;
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88 } else if (!strcmp(optarg, "veg")) {
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89 type = TYPES_VEG;
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90 } else {
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91 fprintf(stderr, "[ERROR]: Received an invalid type parameter!\n");
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92 printf(help_text, argv[0]);
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93 }
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94
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95 break;
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96 case 'h':
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97 default:
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98 printf(help_text, argv[0]);
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99 break;
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100 }
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101 }
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102
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103 if (argc <= optind) {
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104 fprintf(stderr, "[ERROR]: Missing input file!\n");
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105 printf(help_text, argv[0]);
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106 return 1;
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107 }
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108
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109 if (!version || !type) {
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110 printf(help_text, (argc > 0) ? argv[0] : "msvpvf");
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111 return 1;
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112 }
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113
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114 /* this progressively */
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115 while (optind < argc) {
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116 const char* input = argv[optind++];
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117 FILE* output_file = NULL;
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118
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119 {
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120 uint8_t file_version = 0;
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121 enum types file_type = TYPES_UNKNOWN;
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122
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123 printf("Input file name: %s\n", input);
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124 /* print information about the input file */
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125 FILE* input_file = fopen(input, "rb");
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126 if (!input_file) {
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127 fprintf(stderr, "[ERROR]: Error opening input file %s!\n\n", input);
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128 continue;
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129 }
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130
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131 if (fgetc(input_file) == EOF) {
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132 fprintf(stderr, "[ERROR]: Input file \"%s\" is empty.\n", input);
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133 fclose(input_file);
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134 continue;
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135 }
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136
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137 if (get_file_information(input_file, &file_version, &file_type)) {
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138 fprintf(stderr, "[ERROR]: Failed to get file information for input file \"%s\"!\n", input);
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139 fclose(input_file);
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140 continue;
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141 }
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142
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143 printf("Input file version: %u\n", file_version);
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144 printf("Input file type: %s\n\n", type_to_string(file_type));
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145
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146 {
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147 /* open the output file... */
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148 char* basec = msvpvf_internal_strdup(input);
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149 char* bname = basename(basec);
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150 int ext = strrchr(bname, '.') - bname;
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151
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152 /* create the output filename */
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153 int needed_size = snprintf(NULL, 0, "V%u_%.*s.%s", version, ext, bname, type_to_extension(type));
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154 char* output = malloc((needed_size + 1) * sizeof(char));
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155 if (!output) {
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156 fprintf(stderr, "[ERROR]: Failed to allocate memory for output string!\n");
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157 free(basec);
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158 return 1;
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159 }
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160
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161 snprintf(output, needed_size + 1, "V%u_%.*s.%s", version, ext, bname, type_to_extension(type));
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162 printf("Output filename: %s\n", output);
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163
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164 output_file = fopen(output, "w+b");
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165 if (!output_file) {
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166 fprintf(stderr, "[ERROR]: Failed to open output file %s! Do you have write permissions?\n", output);
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167 free(basec);
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168 free(output);
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169 continue;
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170 }
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171 free(basec);
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172 free(output);
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173 }
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174
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175 copy_file(input_file, output_file);
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176
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177 fflush(stdout);
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178 fclose(input_file);
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179 }
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180
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181 set_file_information(output_file, version, type);
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182 fclose(output_file);
6
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183 }
79
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184
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185 return 0;
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186 }