Move the memory related functions out of common.h into their own header file

mem.h.

Originally committed as revision 8342 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 65 insertions, 0 deletions

diff --git a/libavutil/mem.h b/libavutil/mem.h
new file mode 100644
index 0000000000..4ebdad8f57
--- /dev/null
+++ b/libavutil/mem.h
@@ -0,0 +1,65 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * 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
+ */
+
+/**
+ * @file mem.h
+ * Memory handling functions.
+ */
+
+#ifndef AV_MEM_H
+#define AV_MEM_H
+
+#ifdef __GNUC__
+  #define DECLARE_ALIGNED(n,t,v)       t v __attribute__ ((aligned (n)))
+#else
+  #define DECLARE_ALIGNED(n,t,v)      __declspec(align(n)) t v
+#endif
+
+/**
+ * Memory allocation of size byte with alignment suitable for all
+ * memory accesses (including vectors if available on the
+ * CPU). av_malloc(0) must return a non NULL pointer.
+ */
+void *av_malloc(unsigned int size);
+
+/**
+ * av_realloc semantics (same as glibc): if ptr is NULL and size > 0,
+ * identical to malloc(size). If size is zero, it is identical to
+ * free(ptr) and NULL is returned.
+ */
+void *av_realloc(void *ptr, unsigned int size);
+
+/**
+ * Free memory which has been allocated with av_malloc(z)() or av_realloc().
+ * NOTE: ptr = NULL is explicetly allowed
+ * Note2: it is recommended that you use av_freep() instead
+ */
+void av_free(void *ptr);
+
+void *av_mallocz(unsigned int size);
+char *av_strdup(const char *s);
+
+/**
+ * Frees memory and sets the pointer to NULL.
+ * @param ptr pointer to the pointer which should be freed
+ */
+void av_freep(void *ptr);
+
+#endif /* AV_MEM_H */