[FFmpeg-devel] [PATCH 4/6] truehd: tune VLC decoding for ARM.

[Michael Niedermayer]

On Wed, Mar 19, 2014 at 05:26:19PM +0000, Ben Avison wrote:
> Profiling on a Raspberry Pi revealed the best performance to correspond
> with VLC_BITS = 5. Results for overall audio decode and the get_vlc2 function
> in particular are as follows:
> 
>               Before          After
>               Mean   StdDev   Mean   StdDev  Confidence  Change
> 6:2 total     348.8  20.1     339.6  15.1    88.8%       +2.7%  (insignificant)
> 6:2 function  38.1   8.1      26.4   4.1     100.0%      +44.5%
> 8:2 total     339.1  15.4     324.5  15.5    99.4%       +4.5%
> 8:2 function  33.8   7.0      27.3   5.6     99.7%       +23.6%
> 6:6 total     604.6  20.8     572.8  20.6    100.0%      +5.6%
> 6:6 function  95.8   8.4      68.9   8.2     100.0%      +39.1%
> 8:8 total     766.4  17.6     741.5  21.2    100.0%      +3.4%
> 8:8 function  106.0  11.4     86.1   9.9     100.0%      +23.1%
> ---
>  libavcodec/mlpdec.c |   13 ++++++++++---
>  1 files changed, 10 insertions(+), 3 deletions(-)

applied

thanks

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

While the State exists there can be no freedom; when there is freedom there
will be no State. -- Vladimir Lenin
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