1 files changed, 95 insertions, 0 deletions
diff --git a/mpeglib/lib/util/file/fileAccess.cpp b/mpeglib/lib/util/file/fileAccess.cpp
new file mode 100644
index 00000000..8eab864f
--- /dev/null
+++ b/mpeglib/lib/util/file/fileAccess.cpp
@@ -0,0 +1,95 @@
+/*
+  simple file access interface.
+  Copyright (C) 2001  Martin Vogt
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Library General Public License as published by
+  the Free Software Foundation.
+
+  For more information look at the file COPYRIGHT in this package
+
+ */
+
+
+
+#include "fileAccess.h"
+
+
+FileAccess::FileAccess() {
+  file=NULL;
+  length=0;
+}
+
+
+FileAccess::~FileAccess() {
+  close();
+}
+
+
+int FileAccess::open(const char* path) {
+  close();
+  file=fopen(path,"rb");
+  length=calcByteLength();
+  return (file != NULL);
+}
+
+
+void FileAccess::close() {
+  if (file != NULL) {
+    fclose(file);
+    file=NULL;
+    length=0;
+  }
+}
+
+
+int FileAccess::read(char* dest,int len) {
+  int back=0;
+  if (file != NULL) {
+    back=fread(dest,1,len,file);
+  } else {
+    printf("FileAccess::read not open\n");
+  }
+  return back;
+}
+						
+int FileAccess::eof() {
+  int back=true;
+  if (file != NULL) {
+    back=feof(file);
+  }
+  return back;
+}
+
+
+int FileAccess::seek(long pos) {
+  if (file == NULL) {
+    return -1;
+  }
+  return fseek(file,pos,SEEK_SET);
+}
+
+
+long FileAccess::getBytePosition() {
+  if (file == NULL) {
+    return 0;
+  }
+  return ftell(file);
+}
+
+
+long FileAccess::getByteLength() {
+  return length;
+}
+
+long FileAccess::calcByteLength() {
+  if (file == NULL) {
+    return 0;
+  }
+  long pos=getBytePosition();
+  fseek(file,0,SEEK_END);
+  long back=getBytePosition();
+  fseek(file,pos,SEEK_SET);
+  return back;
+}
+