63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
// Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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#include "./vttreader.h" // NOLINT
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#ifdef _MSC_VER
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// Disable MSVC warnings that suggest making code non-portable.
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#pragma warning(disable:4996)
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#endif
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namespace libwebvtt {
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VttReader::VttReader() : file_(NULL) {
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}
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VttReader::~VttReader() {
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Close();
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}
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int VttReader::Open(const char* filename) {
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if (filename == NULL || file_ != NULL)
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return -1;
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file_ = fopen(filename, "rb");
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if (file_ == NULL)
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return -1;
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return 0; // success
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}
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void VttReader::Close() {
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if (file_) {
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fclose(file_);
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file_ = NULL;
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}
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}
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int VttReader::GetChar(char* c) {
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if (c == NULL || file_ == NULL)
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return -1;
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const int result = fgetc(file_);
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if (result != EOF) {
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*c = static_cast<char>(result);
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return 0; // success
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}
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if (ferror(file_))
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return -1; // error
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if (feof(file_))
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return 1; // EOF
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return -1; // weird
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}
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} // namespace libwebvtt
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