Add package opusfile

Opusfile is a decoder for Opus files. It provides a higher-level API
than the opus library, of which it makes use.

Update function taken directly from opus.mk. Two patches are needed to
make it work, one is taken from the upstream repository (change
introduced after the latest release), the other is by myself.

1 files changed, 66 insertions, 0 deletions

diff --git a/src/opusfile-1-fseeko64.patch b/src/opusfile-1-fseeko64.patch
new file mode 100644
index 0000000..1df58b7
--- /dev/null
+++ b/src/opusfile-1-fseeko64.patch
@@ -0,0 +1,66 @@
+This file is part of MXE.
+See index.html for further information.
+
+This patch has been taken from:
+http://git.xiph.org/?p=opusfile.git;a=patch;h=d75915786f465892f5eadcd93444f51a32b9ad1c
+
+From d75915786f465892f5eadcd93444f51a32b9ad1c Mon Sep 17 00:00:00 2001
+From: Timothy B. Terriberry <tterribe@xiph.org>
+Date: Tue, 8 Jan 2013 05:04:41 -0800
+Subject: [PATCH] Use fseeko64/ftello64 for mingw32.
+
+It turns out i686-pc-mingw32 does define these functions, and they
+ are always available (unlike _fseeki64/_ftelli64).
+This means we can build and link without requiring
+ i686-w64-mingw32.
+The resulting binary still doesn't run in wine for me, but that may
+ be a personal problem.
+---
+ src/stream.c |   22 ++++++++++++++++++++++
+ 1 files changed, 22 insertions(+), 0 deletions(-)
+
+diff --git a/src/stream.c b/src/stream.c
+index caa82f1..1c7266b 100644
+--- a/src/stream.c
++++ b/src/stream.c
+@@ -56,7 +56,18 @@ static int op_fread(void *_stream,unsigned char *_ptr,int _buf_size){
+ static int op_fseek(void *_stream,opus_int64 _offset,int _whence){
+ #if defined(_MSC_VER)
+   return _fseeki64((FILE *)_stream,_offset,_whence);
++#elif defined(__MINGW32__)
++  /*i686-pc-mingw32 does not have fseeko() and requires
++     __MSVCRT_VERSION__>=0x800 for _fseeki64(), which screws up linking with
++     other libraries (that don't use MSVCRT80 from MSVC 2005 by default).
++    i686-w64-mingw32 does have fseeko() and respects _FILE_OFFSET_BITS, but I
++     don't know how to detect that at compile time.
++    We don't need to use fopen64(), as this just dispatches to fopen() in
++     mingw32.*/
++  return fseeko64((FILE *)_stream,(off64_t)_offset,_whence);
+ #else
++  /*This function actually conforms to the SUSv2 and POSIX.1-2001, so we prefer
++     it except in the two special-cases above.*/
+   return fseeko((FILE *)_stream,(off_t)_offset,_whence);
+ #endif
+ }
+@@ -64,7 +75,18 @@ static int op_fseek(void *_stream,opus_int64 _offset,int _whence){
+ static opus_int64 op_ftell(void *_stream){
+ #if defined(_MSC_VER)
+   return _ftelli64((FILE *)_stream);
++#elif defined(__MINGW32__)
++  /*i686-pc-mingw32 does not have ftello() and requires
++     __MSVCRT_VERSION__>=0x800 for _ftelli64(), which screws up linking with
++     other libraries (that don't use MSVCRT80 from MSVC 2005 by default).
++    i686-w64-mingw32 does have ftello() and respects _FILE_OFFSET_BITS, but I
++     don't know how to detect that at compile time.
++    We don't need to use fopen64(), as this just dispatches to fopen() in
++     mingw32.*/
++  return ftello64((FILE *)_stream);
+ #else
++  /*This function actually conforms to the SUSv2 and POSIX.1-2001, so we prefer
++     it except in the two special-cases above.*/
+   return ftello((FILE *)_stream);
+ #endif
+ }
+-- 
+1.7.2.5
+