[mythtv] ffmpeg options for playback

[Håkon Alstadheim]

I originally sent this query to *users, because I hope for an answer on 
how to use the settings interface. The question however is framed with a 
  *dev slant, and since nobody replied in *users, I'll try here:

I'm running 0.22-fixes, and depending on the phase of the moon my
cpu will max out occasionally. Compiling with the patch below helps,
reducing cpu usage for the frontend from ~70% to ~50% +- 20%. Any idea
how to enable this in a playback profile so I can run without patches ?

I think there is supposed to be a setting somewhere, but I'm unable to 
find it :/


===================================================================
--- libs/libmythtv/avformatdecoder.cpp    (revision 22936)
+++ libs/libmythtv/avformatdecoder.cpp    (working copy)
@@ -1743,6 +1743,13 @@
                     else
                         video_codec_id = kCodec_MPEG2; // default to MPEG2
                 }
+        if (CODEC_IS_H264(enc->codec_id))
+                {
+          VERBOSE(VB_PLAYBACK, LOC + "Turning off loop filter");
+          enc->skip_loop_filter = AVDISCARD_NONREF;
+          VERBOSE(VB_PLAYBACK, LOC + "Enabling Fast decode mode");
+          enc->flags           |= CODEC_FLAG2_FAST;
+                 }

                 if (enc->codec)
                 {
===================================================================


-- 
Håkon Alstadheim / N-7510 Skatval / email:hakon at alstadheim.priv.no
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http://alstadheim.priv.no/hakon/
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