Re: [FFmpeg-devel] [PATCH 2/4] opus: Fix arithmetic overflows (per RFC8251)

2017-12-03 Thread Rostislav Pehlivanov
On 2 December 2017 at 17:36, Andrew D'Addesio wrote: > The relevant sections from the RFC are: > > Sec.6. Integer Wrap-Around in Inverse Gain Computation > 32-bit integer overflow in Levinson recursion. Affects > silk_is_lpc_stable(). > > Sec.8. Cap on Band Energy >

Re: [FFmpeg-devel] [PATCH 2/4] opus: Fix arithmetic overflows (per RFC8251)

2017-12-03 Thread Michael Niedermayer
On Sat, Dec 02, 2017 at 11:46:57AM -0600, Andrew D'Addesio wrote: > The relevant sections from the RFC are: > > Sec.6. Integer Wrap-Around in Inverse Gain Computation > 32-bit integer overflow in Levinson recursion. Affects > silk_is_lpc_stable(). > > Sec.8. Cap on Band Energy > NaN

[FFmpeg-devel] [PATCH 2/4] opus: Fix arithmetic overflows (per RFC8251)

2017-12-02 Thread Andrew D'Addesio
The relevant sections from the RFC are: Sec.6. Integer Wrap-Around in Inverse Gain Computation 32-bit integer overflow in Levinson recursion. Affects silk_is_lpc_stable(). Sec.8. Cap on Band Energy NaN due to large log-energy value. Affects celt_denormalize(). Signed-off-by: Andrew

[FFmpeg-devel] [PATCH 2/4] opus: Fix arithmetic overflows (per RFC8251)

2017-12-02 Thread Andrew D'Addesio
The relevant sections from the RFC are: Sec.6. Integer Wrap-Around in Inverse Gain Computation 32-bit integer overflow in Levinson recursion. Affects silk_is_lpc_stable(). Sec.8. Cap on Band Energy NaN due to large log-energy value. Affects celt_denormalize(). Signed-off-by: Andrew