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720P 120FPS Sequence Preset

Dec 15, 2012 11:44 PM

Tags: #h.264 #preset #mp4 #720p #sequence_presets #120fps #720p_at_120fps #720p_120fps #mp4_h.264

Hey

I'm running Premiere Pro CS6 v6, Installed latest updates, Windows 7 64bit, My source footage is H.264 in a .MP4 format. I'm using a Go Pro Hero 3 Black edition at 720P, 120FPS.

Is it possible to create a sequence preset for the Go Pro Hero 3 at 720P 120FPS and/or for all the other Resolutions and FPS?

 

Kind Regards

Toby

 
Replies
  • Currently Being Moderated
    Dec 16, 2012 1:49 AM   in reply to Toby.Spanton123

    Premiere can handle resolutions up to 10,240×8,192, for framerate the maximum is 60 fps.

    Drop your footage in a 1280x720 60 fps sequence and I think it will be ok.

     
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    Dec 16, 2012 10:29 AM   in reply to Toby.Spanton123

    I suggest you ask the folks at Cineform support for recommendations on editing that footage. They may have a way to deal with it in Premiere Pro. My guess is that you shot at 120 in order to slow it down. Perhaps at some point in the conversion process to the Cineform codec, the Cineform software deals with it. I don't know. I don't have a GoPro camera.

     

    If anyone knows, Jake at Cineform will know. 

     
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  • Currently Being Moderated
    Dec 28, 2012 2:43 PM   in reply to Steven L. Gotz

    At the moment there's no realistic broadcast distribution mechanism for 120p footage, so the only reason for recording in 120p is to play it back in slow-motion or to extract still frames. You can play 120p clips at 'full speed' on a computer (e.g. with Quicktime) but you won't actually paint all 120 frames a second to your screen unless you're on a beast of a machine.

     

    The Hero3 writes its 120p footage at 119.880fps so when you drop it into Premiere Pro it will create a sequence with the highest NTSC frame rate it can handle, of 59.94fps*. That automatically gives you a 2:1 slow motion effect, if you want to play at normal speed you have to sacrifice half your frames (by setting the clip speed to 200%). The only problem with all this halving and doubling is that your audio track will be chewed - it's pretty unimaginable that anyone would want to keep the audio channel from a 120p clip, but if you do, it's best to pull it out as a separate file. Audition CS6 can import 120p video references and plays them at full speed so it's easy enough to slice apart.

     

    *Interestingly, After Effects also has an import limit of 60fps but will reinterpet to 99fps if you ask nicely. It won't go to 120.

     

     

    For those who care, here's a specs dump for a Hero3 720/120p file:

     

    Video

    ID : 1

    Format : AVC

    Format/Info : Advanced Video Codec

    Format profile : High@L4.2

    Format settings, CABAC : Yes

    Format settings, ReFrames : 1 frame

    Format settings, GOP : M=1, N=15

    Codec ID : avc1

    Codec ID/Info : Advanced Video Coding

    Width : 1 280 pixels

    Height : 720 pixels

    Display aspect ratio : 16:9

    Frame rate mode  : Constant

    Frame rate : 119.880 fps

    Original frame rate : 29.970 fps

    Color space  : YUV

    Chroma subsampling : 4:2:0

    Bit depth : 8 bits

    Scan type : Progressive

    Bits/(Pixel*Frame) : 0.281

    Title : Ambarella AVC

     

    Audio

    ID  : 2

    Format : AAC

    Format/Info  : Advanced Audio Codec

    Format profile : LC

    Codec ID : 40

    Bit rate mode : Constant

    Bit rate : 128 Kbps

    Channel(s) : 2 channels

    Channel positions : Front: L R

    Sampling rate : 48.0 KHz

    Compression mode : Lossy

    Title : Ambarella AAC

     
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  • Currently Being Moderated
    Dec 28, 2012 3:21 PM   in reply to Toby.Spanton123

    Premiere Pro's renderer is framerate agnostic, don't let the lack of sequence presets stop you. Dragging a 120fps clip to the new sequence icon and internally it will be treated as 120fps.

     
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    Dec 29, 2012 12:47 PM   in reply to SteveHoeg

    I am not convinced that the OP actually understands framerates and so maybe he is under the misbelief that he needs to match his camera framerate to a sequence framerate.

     

    It seems more likely that a 1st time poster with a new camera..is more likely to be wanting Slo Motion.

     

    A good link to how slo motion and framerates interact might be helpful to him. (Wish I had one for him)

     

    Then again...he might really , really want his footage in a 120 fps sequence. ( But that would be a first around these parts)

     
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    Dec 29, 2012 4:39 PM   in reply to SteveHoeg

    No it doesn't - as I said it will create a 59.94 sequence and the clip will play back at half-speed.

     
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  • Currently Being Moderated
    Jan 11, 2013 6:37 PM   in reply to Toby.Spanton123

    Yep it will, 59.94.

     

    Not sure if it did the same with the 120fps of the hero 2. would assume it would.

     

    My question is that if i drag in the 120 fps right interpet the footage to 30fps, am i doing this on the 120fps or is premiere dropping 60 frames and doing it to the 59.94 fps?

     

    cheers

     
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  • Currently Being Moderated
    Mar 3, 2013 10:39 PM   in reply to Toby.Spanton123

    I know this is an old thread but if you want to see what's really happening when you drag high framerate footage into a lower framerate sequence, take a look at this video, http://www.youtube.com/watch?v=W_ry1YAwcIM. Personally, I think frame dropping isn't an acceptable answer to your question so I'm glad you came here to ask about it. Maybe someday Adobe will see the value in being able to render higher framerate footage at its native speed without dropping frames.

     
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    Mar 3, 2013 10:51 PM   in reply to drolzat

    How would that be possible? If I shoot 60 fps and put it on a 30 fps timeline, what should the program do? It sees 60 frames and tried to stuff them into one second. All it can do is drop frames. It can't display to frames in the time that one frame is normally shown. The players would not know how to deal with a variable frame rate video.

     
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    Mar 3, 2013 11:08 PM   in reply to Toby.Spanton123

    The solution, as the OP was trying to ask, is for Adobe to create or allow the creation of higher framerate sequences. If you can create a 120fps sequence, you will not drop any frames and your footage will play back as it was shot. You can then use any of the tools available in PP or AE to do as you please with it.

     
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    Mar 3, 2013 11:40 PM   in reply to drolzat

    That makes sense, I suppose. But what players can play back video at that frame rate? I imagine there must be some, but how many and how commonly are they deployed? As stated above, usually 120 fps or 60 fps is usually shot that way to take advantage of the improved slow motion when played at "normal" frame rates.

     

    I am not saying that Adobe should not make it possible for one camera, or even a few cameras, to be able to record twice or four times the frame rate of the rest of them, and still play it back at the native frame rate.

     

    I am saying that Adobe has finite resources and the actual need to edit it that way is limited by the fact that nobody could actually play it back that way. You could always put in a feature request. Eventually, if enough people do so, the engineering resources could possibly be applied to the problem.

     

    But again, if film is 24 frames per second, most video recorders use 24, 25 or 30 frames per second and even my camera can record 59.94 frames per second, the human eye isn't really going to be able to take advantage of something with a frame rate twice as high is it?

     

    https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

     
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    Mar 13, 2013 2:02 PM   in reply to Toby.Spanton123

    I believe what you are wanting is a program like imovie for apple. this video is a very good example of what it does and it does it for 120 fps http://youtu.be/A-Xbtbs0yZc . I've been trying to find the same thing for PC also, but to no avail. everything I find wants the video converted to 30 fps or less first, but I want to be able to edit the 120 fps file before conversion like in the clip above.

     
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    Mar 13, 2013 2:39 PM   in reply to zman5874

    Um, that video is not playing 120fps in real time, it is "conformed" to a slow-motion rate.

    You can accomplish the same task in PrPro by right clicking on the clip in Project, Modify, Interpret Footage and change the frame rate to "Assume this..." and set it to your sequence frame rate.

     

    If you want to view 120fps at real-time and not skip any frames, you will need a software player, video card and display all capable of 120Hz refresh rates.

     

    Good luck with that, and let us know if it was worth it.

     
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  • Currently Being Moderated
    Mar 13, 2013 2:44 PM   in reply to Qengineering

    display capable of 120Hz refresh rates.

     

    There's the rub.  I've never seen a computer monitor that goes over 60Hz.  And even when a TV can go to 120Hz, it's a special mode that's doubling the normal 60Hz signal, it's not something that the TV is taking in at 120Hz.

     

    The point of 120 fps is slow motion.  It'd be very difficult to see the full 120 frame rate, so what's the point of worrying about it?  You shoot 120 to slow it down,  If you don't want to slow it down, don't shoot 120.

     

    Easy, done.

     
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    Mar 13, 2013 10:04 PM   in reply to Jim Simon

    Jim, Q,

                 I'm relatively new to in depth video editing, and as such I wasn't fully understanding what I was watching in the video. the part that threw my was that he did pull a clip from the raw 120 fps footage with the Imovie software, but then he used cineform to process the 120 fps clip into a 30 fps clip which he then put back into Imovie to further edit. part of which was actually speeding up parts of the slow motion vid he had rendered with ciniform. I was jumping to the conclusion that I needed software which could slow down parts of a 120 fps clip. Add to that the fact that cineform actually does play the 120 fps vids before rendering them into 60 fps or lower clips and you can see where I was getting confused. totally my bad, but thanks for the quick and well informed response. I will definitely keep this forum as a resource, thanks again.

     
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    Aug 13, 2013 5:45 PM   in reply to Dave Merchant

    >>"I've never seen a computer monitor that goes over 60Hz."

     

    120Hz monitors are popular among high-end video game players.  There are more than a dozen models avaialble:

    http://www.blurbusters.com/faq/120hz-monitors/


     

    >>"At the moment there's no realistic broadcast distribution mechanism for 120p footage"

     

    Good news!  The web is now a potential 120fps video distribution medium; and some computer users use 120Hz computer monitors now.  There is now a way to speed up 120fps slow-motion to 120fps real-time, and it was recently discovered that all the popular web browsers (Internet Explorer, Chrome, and the new FireFox 25+) using the <VIDEO> element are now capable of playing back at 120fps in real time on a 120Hz computer monitor:

     

    http://www.blurbusters.com/faq/real-time-120fps-video

     

    In general, any machine capable of playing back 1080p@60fps, is easily capable of playing back 720p@120fps.  Both are pretty similiar bitrates.

     
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