[FFmpeg-devel] [PATCH] Fix warnings about int64toint32conversion

[Reimar Döffinger]

On Wed, May 16, 2012 at 12:05:13PM -0600, Michael Bradshaw wrote:
> Wow, this turned into a lively discussion.
> 
> To answer some of the questions: these warnings are from MSVC 2008 and
> 2010 (haven't tested other versions). Yes, two of the casts are
> technically unnecessary (read below). I have tested this with gcc
> 4.2.1 with a random sampling of 1000000 integers, and the output is
> the same before and after the patch.
> 
> I've attached a new version of the patch that removes the two
> unnecessary casts. I originally added them because a) I have a habit
> of being explicit when demoting data types and b) for consistency. I
> think you have a valid point Reimar that they probably shouldn't be
> included in this patch, though, and MSVC 2008 and 2010 don't complain
> if the two casts are removed.
> 
> Let me know if this patch is better.

I have no objections against this one.
I might be useful to add a comment that the casts are only there to
silence warnings and that the numbers already fit into 32 bit, but
that's not that important.