[mythtvnz] Anyone successfully using CoreAVC for h264 decoding ?

Graeme Woollett graeme.joy at paradise.net.nz
Mon Sep 1 09:00:13 BST 2008


After I included the cp directshow came to life  :-)
TV3 is now watchable but large screen changes/movement are not fluid.

dhsowserver CPU usage varies a lot, between 90and 120%/40% idle for TV3 
with the "normal" playback profile

TV1&2 are around 70-80% with Piha rescue, this prog is not HD though

front end is crashing reasonably frequently with the following-
2008-09-01 19:00:37.711 AFD: Found DirectShow filter
2008-09-01 19:00:37.712 AFD: Opened codec 0xa8f35c30, id(H264) type(Video)
2008-09-01 19:00:37.712 AFD: codec AAC_LATM has 2 channels
2008-09-01 19:00:37.712 AFD Error: Could not find decoder for codec 
(AAC_LATM), ignoring.
2008-09-01 19:00:37.712 AFD: codec AC3 has 6 channels
2008-09-01 19:00:37.712 AFD: Opened codec 0xa8faae30, id(AC3) type(Audio)
2008-09-01 19:00:39.054 NVP: Prebuffer wait timed out 10 times.
2008-09-01 19:10:14.446 Mixer unable to find control Master 1
2008-09-01 19:10:14.446 mixer unable to find control Master 1
Segmentation fault

myth at mercury:~$ Parent process 21839 died unexpectedly

the aac_Latm error I guess is largely due to a fix in avformat.cpp that 
allowed it to compile cleanly

2008-09-01 19:49:05.089 AFD: Opened codec 0xa6411f80, id(H264) type(Video)
2008-09-01 19:49:05.089 AFD: codec AAC_LATM has 2 channels
2008-09-01 19:49:05.089 AFD Error: Could not find decoder for codec 
(AAC_LATM), ignoring.
2008-09-01 19:49:05.089 AFD: Opened codec 0xa64b40a0, id(DVB_SUBTITLE) 
type(Subtitle)
2008-09-01 19:49:05.089 NVP: Disabling Audio, params(0,-1,-1)
2008-09-01 19:49:41.475 NVP: prebuffering pause
2008-09-01 19:50:05.244 NVP: prebuffering pause


On TV1 and 2 with this build I don't have any sound, TV3 DVB-T and DVB-S 
are OK

The directshow build is less stable than others, I think I'll need to 
stick with DVB-S a little longer or the WAF will take a hammering...




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