[FFmpeg-cvslog] r25956 - in trunk: libavcodec/ac3enc.c tests/ref/acodec/ac3

[Michael Niedermayer]

On Tue, Dec 14, 2010 at 03:51:02PM +0100, jbr wrote:
> Author: jbr
> Date: Tue Dec 14 15:51:02 2010
> New Revision: 25956
> 
> Log:
> Simplify fix15().
> Turn it into 2 macros, and use av_clip_int16() and lrintf().
> This matches the int16 to float sample conversion in audioconvert.c.
> The regression test output is different due to lrintf() rounding.

not only rounding, this also causes a difference due to cliping changing from
-32767..32767 to -32768..32767 which leads to overflows
as found my mans

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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