Bug#614471:

[Lifeng Sun]

Hello,

On 09:38 Tue 02/22/11 Feb     , Mathieu Malaterre wrote:
> reassign 614471 ffmpeg
> thanks
> 
> > [ 29%] Building CXX object VTK/IO/CMakeFiles/vtkIO.dir/vtkPostgreSQLQuery.cxx.o
> > In file included from /usr/include/libavutil/avutil.h:81,
> >                  from /usr/include/libavcodec/avcodec.h:30,
> >                  from /usr/include/libavformat/avformat.h:56,
> >                  from /build/user-paraview_3.8.1-2-amd64-4Wj_N7/paraview-3.8.1/VTK/IO/vtkFFMPEGWriter.cxx:27:
> > /usr/include/libavutil/common.h: In function 'int32_t av_clipl_int32(int64_t)':
> > /usr/include/libavutil/common.h:154: error: 'UINT64_C' was not declared in this scope
> 
> Clearly the issue is in the libavutil.h code (not in paraview)

This is an issue of paraview. Paraview is written in C++ while
libavutil is written in C. The ISO C99 standard (7.18.4) specifies
that C++ implementations should define UINT64_C only when
__STDC_CONSTANT_MACROS is defined, so even when stdint.h is included,
UINT64_C may be not in scope in C++ programs, but this never happens
in C programs.



Regards,
Lifeng

> 
> 
> /**
>  * Clips a signed 64-bit integer value into the -2147483648,2147483647 range.
>  * @param a value to clip
>  * @return clipped value
>  */
> static inline av_const int32_t av_clipl_int32(int64_t a)
> {
>     if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
>     else                                         return a;
> }
> 
> 
> Thanks
> 
> 
> 
> --
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> debian-science-maintainers at lists.alioth.debian.org
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-- 
-------------- next part --------------
--- a/VTK/IO/vtkFFMPEGWriter.cxx
+++ b/VTK/IO/vtkFFMPEGWriter.cxx
@@ -21,6 +21,10 @@
 #include "vtkFFMPEGConfig.h"
 
 extern "C" {
+#ifndef __STDC_CONSTANT_MACROS
+# define __STDC_CONSTANT_MACROS
+#endif
+
 #ifdef VTK_FFMPEG_HAS_OLD_HEADER
 # include <ffmpeg/avformat.h>
 #else
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