[mythtv] [Experimental Patch] HDTV Recorder patch updated

[John Patrick Poet]

Daniel Thor Kristjansson wrote:

>The patch is available at
>  http://www.mrl.nyu.edu/~danielk/mythtv/
>
>I spent some time on the HDTV Recorder patch. I renamed most of the
>method names to begin with a capital letter to match the MythTV style.
>I'm still using C++ style casts, and K&R bracketing in many places, so
>it's not quite MythTV style compliant yet.
>
>Functionally, I've eliminated the TSPacketProcessor class and moved it's
>methods to the [ATSC,MPEG]StreamData and HDTVRecorder classes as
>appropriate. This should make DVB integration a little easier. I've also
>rewritten TSPacket to be castable from the Transport Stream buffer, and
>I've rejigged the PESPacket and PSIPTable classes so that memory
>allocation is simpler to track. This made it possible for me to
>use Valgrind to eliminate memory leaks that some earlier versions of my
>PSIP parser suffered from.
>
>By default the base_pid rewriting is disabled, which means this will
>patch breaks "Live TV". You can re-enable the hack via a define in
>"tspacket.h". But I'd like to fix the bug in ffmpeg that forces us to
>use this hack. Both because it's ugly and because it makes it impossible
>to use ATSC tables without additional hacks.
>
>I've included a copy of my settings.pro for this patch, the only thing
>you need is the "DEFINES += L2_CACHE_SIZE_KB=512" line, which is used to
>set the buffer size in HDTVRecorder. The buffer is set to half the cache
>size, minus a little. The idea is to keep as much of our stream data in
>the cache while not tossing the rest of our working set out of the cache.
>So if you have a 256kb cache or a 1024kb or 2048kb cache, set this to
>that value. For me this keeps recorder CPU below 1% while not destroying
>the performance of mythfrontend.
>
>-- Daniel
>  
>
>------------------------------------------------------------------------
>

Tried to grab this, Daniel, but get:


  http://www.mrl.nyu.edu/~danielk/mythtv/hdtv-recorder-v17.tbz


  Object not found!


John