[miappa]

Updated Gotham build, XBMC master from Mar 01 + newclock3 commits + additional commits.

Some info:
• NC3: Fix for white noise problem when using hifiberry sound card
• NC3: Allow small audio packets to be concatenated to make better use of audio fifo *
• NC3: Add suppression and auto-repeat to CEC via advancedsettings.xml (EXPERIMENTAL) **
• Additional/SQLite: Updated SQLite version
• Additional/SQLite: Use mmap to accelerate SQLite file accesses
• Additional: Fix memory leakage in python bindings
• Additional: DVD various fixes related to libdvdnav issues and skip to menu (updated)


Firmware from 28th of Feb recommended.
Firmware update, recommendations and additional testing (DVDPlayer etc.), see post #1

To install XBMC build, SSH to Pi:

Code:

cd .upgrade
wget -O xbmc-13-20140301-nc3.tar.gz http://goo.gl/ZkNQms --no-check-certificate
mkdir -p xbmc-13-20140301-nc3
pv xbmc-13-20140301-nc3.tar.gz | tar xzf - -C xbmc-13-20140301-nc3
cd xbmc-13-20140301-nc3/xbmc-bcm/xbmc-bin/lib/xbmc/system
cp /usr/local/lib/libdvdcss.so.2.1.0 .
ln -sf libdvdcss.so.2.1.0 libdvdcss.so.2
ln -sf libdvdcss.so.2 libdvdcss.so

Activate new build in "Raspbmc Settings/Nightly…/Switch…”, choose new build + restart XBMC.

Some words from popcornmix:

* Allow small audio packets…

When not using passthough, this has quite a significant performance benefit for me. I can reduce arm clock significantly before a stream starts buffering.
It also starts to make TrueHD audio usable (some TrueHD streams are playing correctly with overclock whereas before it was impossible).

You can get test TrueHD streams here:
http://www.demo-world.eu/trailers/high-d...ailers.php

There is a chance this could cause audio glitches or sync problems, but it's behaving for my test streams.

TrueHD is still problematic. In a standalone test AC3 takes about 17% of the (stock frequency) ARM's CPU. TrueHD takes about 57%, so it's much more expensive.
We've got Ben to look at optimising the codec. It will always be worse than AC3/DTS, but in conjunction with this patch it may become feasible to play TrueHD on an overclocked Pi.

** CEC... Note: Probably not usable yet, but should be harmless without the advancedsettings.

Code:

<cecsuppress> # brief time during which subsequent presses will be ignored (ms)
<cecdelay>    # brief time until remote starts repeating (ms)
<cecrepeat>   # brief interval remote repats at (ms)
<cecrelease>  # brief time before remote is considered released (ms)