Mai's AT3+ decoder on Linux

--- base/MaiFile.cc.old 2012-12-04 02:21:28.000000000 +0100
+++ base/MaiFile.cc     2013-09-10 19:22:42.269820093 +0200
@@ -341,8 +341,7 @@
    Mai_I64 fpn;
    fpn = this->getFilePointer();

-   //if (!::ftruncate64(file0, newLength))
-   if (!::syscall(__NR_ftruncate64, file0, newLength))
+   if (!::ftruncate64(file0, newLength))
    {
        this->seek(fpn);
        return 0;
--- Makefile.old    2013-09-10 19:46:48.000000000 +0200
+++ Makefile        2013-09-10 19:54:37.013141496 +0200
@@ -1,6 +1,6 @@
 outdir=../output

-target=$(outdir)/libMaiAT3PlusDecoder.a
+target=$(outdir)/libat3plusdecoder.so

 objs=$(outdir)/Heap_Alloc0.o\
    $(outdir)/MaiFile.o\
@@ -18,22 +18,22 @@
    $(outdir)/MaiAT3PlusCoreDecoder_StaticData.o\
    $(outdir)/MaiAT3PlusCoreDecoder_SubFunc.o\
    $(outdir)/MaiAT3PlusFrameDecoder.o\
+   $(outdir)/cframedecoder.o\
-   $(outdir)/MaiBitReader.o\
-   $(outdir)/MaiBitReader.o\

 hs=


-Mai_CXX_O=g++ -O2 -c "-I../include" -fno-exceptions -fno-rtti
+Mai_CXX_O=g++ -O2 -c "-I../include" -fno-exceptions -fno-rtti -fPIC

 Mai_RM_O=rm -f
 Mai_AR_O=ar -rcv
+Mai_SO_O=g++ -shared -o

 all : $(target)

 $(target) : $(objs)
    $(Mai_RM_O) $(target)
-   $(Mai_AR_O) $(target) $(objs)
+   $(Mai_SO_O) $(target) $(objs)

 $(objs) : $(hs)
 $(outdir)/%.o : %.cpp
u /dev/null cinterface.cpp
--- /dev/null   2013-09-10 18:17:46.643177700 +0200
+++ cframedecoder.cpp   2013-09-10 20:54:12.993119214 +0200
@@ -0,0 +1,41 @@
+/*
+ * MaiAT3PlusCoreDecoder
+ * Copyright (c) 2013 ryuukazenomai <ryuukazenomai@foxmail.com>
+ *
+ * This file is part of MaiAT3PlusDecoder.
+ *
+ * MaiAT3PlusDecoder 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.
+ *
+ * MaiAT3PlusDecoder 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 MaiAT3PlusDecoder; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "MaiAT3PlusFrameDecoder.h"
+
+extern "C" void* Atrac3plusDecoder_openContext()
+{
+    return new MaiAT3PlusFrameDecoder;
+}
+
+extern "C" int Atrac3plusDecoder_closeContext(void* context)
+{
+    MaiAT3PlusFrameDecoder *frame_decoder =(MaiAT3PlusFrameDecoder*)context;
+    if (frame_decoder)
+        delete frame_decoder;
+    return 0;
+}
+
+extern "C" int Atrac3plusDecoder_decodeFrame(void* context, void* inbuf, int inbytes, int* channels, void** outbuf)
+{
+    MaiAT3PlusFrameDecoder *frame_decoder = (MaiAT3PlusFrameDecoder*)context;
+    return frame_decoder->decodeFrame((Mai_I8*)inbuf, inbytes, channels, (Mai_I16**)outbuf);
+}
+