Index: source/libvpx/third_party/libwebm/mkvwriter.cpp |
=================================================================== |
--- source/libvpx/third_party/libwebm/mkvwriter.cpp (revision 0) |
+++ source/libvpx/third_party/libwebm/mkvwriter.cpp (revision 0) |
@@ -0,0 +1,97 @@ |
+// Copyright (c) 2012 The WebM project authors. All Rights Reserved. |
+// |
+// Use of this source code is governed by a BSD-style license |
+// that can be found in the LICENSE file in the root of the source |
+// tree. An additional intellectual property rights grant can be found |
+// in the file PATENTS. All contributing project authors may |
+// be found in the AUTHORS file in the root of the source tree. |
+ |
+#include "mkvwriter.hpp" |
+ |
+#ifdef _MSC_VER |
+#include <share.h> // for _SH_DENYWR |
+#endif |
+ |
+#include <new> |
+ |
+namespace mkvmuxer { |
+ |
+MkvWriter::MkvWriter() : file_(NULL), writer_owns_file_(true) { |
+} |
+ |
+MkvWriter::MkvWriter(FILE* fp): file_(fp), writer_owns_file_(false) { |
+} |
+ |
+MkvWriter::~MkvWriter() { |
+ Close(); |
+} |
+ |
+int32 MkvWriter::Write(const void* buffer, uint32 length) { |
+ if (!file_) |
+ return -1; |
+ |
+ if (length == 0) |
+ return 0; |
+ |
+ if (buffer == NULL) |
+ return -1; |
+ |
+ const size_t bytes_written = fwrite(buffer, 1, length, file_); |
+ |
+ return (bytes_written == length) ? 0 : -1; |
+} |
+ |
+bool MkvWriter::Open(const char* filename) { |
+ if (filename == NULL) |
+ return false; |
+ |
+ if (file_) |
+ return false; |
+ |
+#ifdef _MSC_VER |
+ file_ = _fsopen(filename, "wb", _SH_DENYWR); |
+#else |
+ file_ = fopen(filename, "wb"); |
+#endif |
+ if (file_ == NULL) |
+ return false; |
+ return true; |
+} |
+ |
+void MkvWriter::Close() { |
+ if (file_ && writer_owns_file_) { |
+ fclose(file_); |
+ } |
+ file_ = NULL; |
+} |
+ |
+int64 MkvWriter::Position() const { |
+ if (!file_) |
+ return 0; |
+ |
+#ifdef _MSC_VER |
+ return _ftelli64(file_); |
+#else |
+ return ftell(file_); |
+#endif |
+} |
+ |
+int32 MkvWriter::Position(int64 position) { |
+ if (!file_) |
+ return -1; |
+ |
+#ifdef _MSC_VER |
+ return _fseeki64(file_, position, SEEK_SET); |
+#else |
+ return fseek(file_, position, SEEK_SET); |
+#endif |
+} |
+ |
+bool MkvWriter::Seekable() const { |
+ return true; |
+} |
+ |
+void MkvWriter::ElementStartNotify(uint64, int64) { |
+} |
+ |
+} // namespace mkvmuxer |