Tagged with 1080p60 - Personal View Talks http://www.personal-view.com/talks/discussions/tagged/1080p60/feed.rss Sat, 04 May 24 10:52:02 +0000 Tagged with 1080p60 - Personal View Talks en-CA Gh3 doubled frames at 1080p60 Quicktime http://www.personal-view.com/talks/discussion/8624/gh3-doubled-frames-at-1080p60-quicktime Thu, 31 Oct 2013 19:14:56 +0000 georgewde 8624@/talks/discussions When I play back a clip recorded with Quicktime 1080P60 setting every frame is doubled. Only 30 frames are effectively recorded. I tried a number of different apps to play it back, even Panasonics own Photofunstudio, PC as well as Mac Quicktime player, no matter what it seems 60 frames don't exist in the recording, every frame is doubled up. What could be wrong? Has anybody tried to slomo a 108P60 clip and is it actually working?

]]> Frame doubling to 1080/60p with InterFrame http://www.personal-view.com/talks/discussion/2351/frame-doubling-to-108060p-with-interframe Mon, 20 Feb 2012 19:15:37 +0000 balazer 2351@/talks/discussions InterFrame is an AviSynth script that does motion compensated frame interpolation, to give you double frame rate video that plays back more smoothly. I find that it does a much better job of this than Twixtor. (for normal speed playback, at least. Twixtor might be better for slow motion) The video looks good enough that my prefered workflow is to shoot in 1080/30p and exhibit frame-doubled 1080/60p.

Here is a very poorly shot before-and-after video:

http://www-personal.umich.edu/~balazer/files/interframe_tests/

To play back the sample video, I recommend VLC. Most PCs and players should play back the MPEG-2 version, but you'll need a fast PC to play the 1080/60p h.264 file. If playback is not smooth, try changing the video output module to DirectX. For best results, set your monitor's refresh rate to a multiple of 60 Hz.

Another playback option is MPC-HC with ffdshow-tryouts beta 7 rev. 3154: set the output renderer to Overlay, and the ffdshow h.264 codec to ffmpeg-mt.

The software I use:

My workflow:

In Sony Vegas, set the project properties to 1080/30p, 8-bit, with an audio sample size of 16 bits and the audio sample rate you want. Render to the DebugMode FrameServer. Set the DebugMode template to 'project properties'. Set the signpost mode to RGB32 and enable 'write audio'.

AviSynth reads the signpost AVI, and ffmpeg reads from AviSynth. Attached is the AviSynth script, and two .bat files for drag-and-drop encoding with ffmpeg.

For Internet distribution, I suggest encoding to MPEG-2 at around 26 Mbps. Obviously this is a high bit rate for the Internet, but it is fairly easy to find a PC and decoder fast enough to play it back. Many PCs and players aren't fast enough to decode low complexity h.264 mp4 at even 13 Mbps.

For the highest quality, encode to high bit rate MPEG-2. It's easier to play this video than h.264, but obviously the files are too big to be easily distributed via the Internet.

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