handbrake tivo profile

Discussion in 'TiVo Home Media Features & TiVoToGo' started by tomm1079, Jun 2, 2011.

  1. tomm1079

    tomm1079 Member

    572
    1
    May 10, 2005
    I been looking around for a handbrake profile for tivo. I only found the command line ones here: http://code.google.com/p/streambaby/wiki/video_compatibility

    Anyone have ideas what we should use if we are using the GUI interface?
     
  2. jcthorne

    jcthorne Well-Known Member

    3,116
    196
    Jan 28, 2002
    Houston
    x264, AVC level 4.1 with 4 ref frames. Limit to 720x480 for SD and dvd sources. AC3 5.1 DD audio. Usually passthrough AC3 works fine from DVD source.

    If I forgot something, sure someone else will chime in.
     
  3. westside_guy

    westside_guy Annoyingly ephemeral

    468
    2
    Mar 13, 2005
    The soggy...
    Depends on the Tivo. For my TivoHD, I started with the high profile preset, then bumped the Constant Quality RF to 19 (was 20), motion estimation to UMH, Subpixel ME to 9 (was 7), Motion Estimation Range to 32 (was 16). I leave the reference frames and b-frames at 3 - anything above that and I'll start to see occasional AV sync issues; plus the new-ish b-adapt tuning in x264 means large b-frame numbers are no longer useful (according to the x.264 dev).

    Basically when I'm done, the advanced x264 option string is:

    b-adapt=2:rc-lookahead=50:me=umh:subq=9:merange=32:analyse=all

    On a 3.06GHz i3 iMac (with 4GB RAM) these settings encode roughly in real time - a 2 hour movie takes 2 hours. On an older Core 2 Duo MacBook Pro, these same settings take about 6 hours for that same movie. :D

    Those command line arguments on the streambaby pages are several years old, and a lot of what they did is apparently unnecessary due to advances in how x264 works by default. Additionally, those recipes were constant bitrate while constant quality is a better choice according to most people.

    Oh and set detelecine to default, decomb to default, and anamorphic to "strict" - they used to say "loose" was better, but the handbrake guys seem to have done an about-face. Also, for animated stuff I set the deblocking to 1:1, otherwise I leave it at 0:0.

    I usually save two audio tracks - one is the pass-through AC3 track (unchanged obviously), the other is a down-mixed stereo track at 160kbps.
     
  4. Joe Siegler

    Joe Siegler Member

    805
    6
    May 10, 2000
    Garland, TX
    This post is almost four years old now. Anyone have any more recent experience with Roamio boxes?

    Tkx.
     
  5. jcthorne

    jcthorne Well-Known Member

    3,116
    196
    Jan 28, 2002
    Houston
    Roamio supports up to 1080p video and 640kbps AC-3 audio but not much else has changed.
     

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