integrate lzma

[zpackage] / lzma / common / easy_encoder_memusage.c

diff --git a/lzma/common/easy_encoder_memusage.c b/lzma/common/easy_encoder_memusage.c
new file mode 100644 (file)
index 0000000..e910575
--- /dev/null
+++ b/lzma/common/easy_encoder_memusage.c
@@ -0,0 +1,24 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \file       easy_encoder_memusage.c
+/// \brief      Easy .xz Stream encoder memory usage calculation
+//
+//  Author:     Lasse Collin
+//
+//  This file has been put into the public domain.
+//  You can do whatever you want with this file.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include "easy_preset.h"
+
+
+extern LZMA_API(uint64_t)
+lzma_easy_encoder_memusage(uint32_t preset)
+{
+       lzma_options_easy opt_easy;
+       if (lzma_easy_preset(&opt_easy, preset))
+               return UINT32_MAX;
+
+       return lzma_raw_encoder_memusage(opt_easy.filters);
+}