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March 23rd, 2006, 08:29 PM
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#1 |
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Trustee
Join Date: May 2004
Location: Knoxville, Tennessee
Posts: 1,669
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Sony 1080i30 to 720p60
Graeme Natress commented in a recent thread that one advantage of the Sony cameras vs. the JVCs is that one can easily do a full-frame deinterlace to 720p60. I just gave that a try via Avisynth and a deinterlacer I hadn't used before, Kurt Prunner's LeakKernelDeint (available here: http://gast3.ssw.uni-linz.ac.at/~kp/AviSynth/).
With simply the default settings, the results are really rather impressive - both for computer playback and as a WindowsMedia9 file played on my Linkplayer2. (The kernal deinterlace seems to provide some subtle denoising and sharpening.) For those interested, here's a basic avs script: Avisource("Cineform1080i30.avi") LeakKernelBob(order=1) lanczosresize(1280, 720) Just as an aside, am I correct in understanding there is no valid MPEG2 encoding option for p60 footage? - i.e. that the MPEG2 spec maxes out at p30? |
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March 24th, 2006, 03:56 AM
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Inner Circle
Join Date: Jan 2006
Posts: 2,699
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Quote:
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March 24th, 2006, 08:07 AM
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#3 |
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Inner Circle
Join Date: Jan 2006
Location: Minnesota (USA)
Posts: 2,171
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You can encode 720/60p video with MPEG-2.
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March 24th, 2006, 10:55 AM
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#4 |
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Trustee
Join Date: May 2004
Location: Knoxville, Tennessee
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Well I thought so too too...but then none of the encoders I have (Procoder, Adobe Media Encoder, TMPG Xpress) seemed to accept 60p as a legal request. And then I found several webpages saying 60p wasn't "legal" at all!
Could someone tell me which software encoders support 720p60 - maybe I am just setting up my profiles incorrectly? |
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March 26th, 2006, 11:47 AM
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#5 |
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Trustee
Join Date: May 2004
Location: Knoxville, Tennessee
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OK I'll answer my own question: Adobe Media Encoder in PPro2 will do 720p60 encoding (I somehow missed this the first time I looked).
Procoder, Procoder Express and TMPGEnc Xpress do not support it. CORRECTION : Oops! Procoder and Procoder Express DO support 60P, provided the mpeg profile is manually switched to MP@HL (see below) Last edited by Graham Hickling; March 26th, 2006 at 09:35 PM. |
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March 26th, 2006, 12:22 PM
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#6 |
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Inner Circle
Join Date: Jan 2006
Location: Minnesota (USA)
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TMPGEnc Plus 2.5 will encode 60p.
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March 26th, 2006, 09:25 PM
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#7 |
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Trustee
Join Date: May 2004
Location: Knoxville, Tennessee
Posts: 1,669
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So it does - thanks. I (now) see that it's the Main Profile Main Level spec thats limited to 30P, not MPEG2 itself:
MP@ML (Main Profile Main Level) upper bound: 720 x 576 (PAL) or 720 x 483 (NTSC) 30 Hz progressive, 60 Hz interlaced Maximum bit rate is 15 Mbits/s MP@HL (Main Profile High Level) upper bound: 1152 x 1920, 60Hz progressive 80 Mbits/s |
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