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Commit Graph

6 Commits

Author SHA1 Message Date
Katerina Barone-Adesi
e50ae60d46 avcodec/fate-idct8x8: Defined behavior: eliminate negative left-shifts.
The original code left-shifts negative values, which is undefined
in the C99 specification (the one used during normal FFmpeg compilation).
This change multiplies by (1 << shift), which is functionally equivalent,
but has defined behavior.
With this change, fate-idct8x8 compiled with --fsanitize=undefined works.

Bug-Id: 686

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The assembly generated by gcc is unchanged by this commit
2014-05-20 04:21:06 +02:00
Diego Biurrun
5d3d39c72e dsputil: Move fdct function declarations to dct.h 2013-02-09 00:08:28 +01:00
Diego Biurrun
88bd7fdc82 Drop DCTELEM typedef
It does not help as an abstraction and adds dsputil dependencies.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2013-01-22 18:32:56 -08:00
Diego Biurrun
da9cea77e3 Fix a bunch of common typos. 2011-12-11 00:32:25 +01:00
Diego Biurrun
ce33320b30 Remove redundant filename self-references inside files.
Filenames are brittle across renames and add no useful information.
2011-11-08 17:52:56 +01:00
Mans Rullgard
0a72533e98 jfdctint: add 10-bit version
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-21 18:10:58 +01:00