avutil/internal: Move avpriv-file API to a header of its own

It is not used by the large majority of files that include
lavu/internal.h.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/libavutil/file_open.h b/libavutil/file_open.h
new file mode 100644
index 0000000000..6a00004741
--- /dev/null
+++ b/libavutil/file_open.h
@@ -0,0 +1,57 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FILE_OPEN_H
+#define AVUTIL_FILE_OPEN_H
+
+#include <stdio.h>
+
+#include "config.h"
+#include "attributes.h"
+
+#if HAVE_LIBC_MSVCRT
+#define avpriv_fopen_utf8 ff_fopen_utf8
+#define avpriv_open ff_open
+#define avpriv_tempfile ff_tempfile
+#endif
+
+ /**
+ * A wrapper for open() setting O_CLOEXEC.
+ */
+av_warn_unused_result
+int avpriv_open(const char *filename, int flags, ...);
+
+/**
+ * Open a file using a UTF-8 filename.
+ */
+FILE *avpriv_fopen_utf8(const char *path, const char *mode);
+
+/**
+ * Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or negative value corresponding to an
+ * AVERROR code on error)
+ * and opened file name in **filename.
+ * @note On very old libcs it is necessary to set a secure umask before
+ *       calling this, av_tempfile() can't call umask itself as it is used in
+ *       libraries and could interfere with the calling application.
+ */
+int avpriv_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx);
+
+#endif /* AVUTIL_FILE_OPEN_H */