Import, Convert, Exporting Sun, 26 Mar 17 03:26:23 -0600 Import, Convert, Exporting en-CA What are H.264 bitrate requirements for high frame rate (48, 50, 60 fps) 4K / UHD? Sat, 18 Mar 2017 03:17:55 -0600 neokoo 16605@/talks/discussions What is the bitrate (and/or other codec specifications) necessary for lifelike motion in HFR 4K and UHD video, when shooting on cameras that use H.264 codec?

For example, GH5 offers [4K/8bit/150M/60p] Long GOP setting. At 150Mbps, can it be trusted that motion will always be captured and reproduced well? Or could there be problems like stuttering or macroblocking, especially when there are lots of details in the image?

5DtoRGB for GH2 - advantages vs disadvantages? Thu, 28 Jul 2011 18:27:48 -0600 qwerty123 530@/talks/discussions VideoArtifact: Footage Quality Restoration Software Tue, 06 Dec 2016 22:19:34 -0700 rean 16146@/talks/discussions Video Artifact is a new standalone video editor for digital film restoration and footage quality enhancement.

It has free and paid editions.

Program helps you to prepare footages from consumer or professional video cameras, digicams and V-DSLR.

It can remove MJPEG, MPEG, H.264, H.265 compression artifacts and digital noise, improves sharpness and color resolution up to 16 bit 4:4:4.

Restoration features:

  • Script-based to work with unique cases. You can use many filters in any combination.
  • 50+ specialized restoration filters work in Y, U, V separately in 8/16 bit.
  • Possibility to use dozens of different type denoisers for different noise type.
  • Accurate denoising that keeps micro details with no "plastic" effect.
  • Removing of sharping halos.
  • Linear color high quality spline-based resize to resize up to 4K. Resize halos can be removed.
  • Precise halo-free radius-dependent sharping.
  • Film grain emulation and 3D LUT grading.
  • 4:2:0 8 bit to 4:2:2/4:4:4 16 bit chroma reconstruction.

It can be used in a post-production workflow if you use V-DSLR or consumer cameras.
Currently 50+ camera models supported and hundreds of compatible models.

Special features:

  • Batch processing without GPU. Very fast: 5 fps for typical V-DSLR AVCHD source and 2 fps for 4K.
  • Automatic joining of MTS, MOV and MP4 spans and renaming to format.
  • Non-standard 16-255 to TV 16-235 levels conversion.
  • ITU-R BT.601 ↔ BT.709 floating point conversion.
  • NLE and DaVinci Resolve compatible workflow.
  • Mastering to webm VP9/Opus or mp4 H.264/AAC 1080p/720p/360p/240p.

Examples with various restoration methods are available at

Some samples:

image image

image image

New Gh5 - 6K photo mode - video workflow Thu, 12 Jan 2017 06:42:48 -0700 davjd 16323@/talks/discussions Hi everyone. I will buy the gh5 in every case, because I already use my gh4 for doing everything for my job, photos and video. What I'd like to do when I get it, is to use the new 6k feature to shoot wedding videos and take pictures out of it, at least at the most important moments, for the rest 4K is ok. I'm so excited to know that 6k photo mode can be used to shoot video clips as well. Thanks to Driftwood we got a sample file
we can download, so I started playing with it. I think a lot of people like me is making experiments with that file and would like to use the camera for 6k shooting, so I thought to create a new topic for sharing opinions and techniques from now and when new material and the camera itself will become available. What I did until now is to try and convert the file using Hybrid to obtain a new h265 or h264 file with the same resolution, since Premiere CC cannot open the original file. The files I obtained did open in Premiere but play smooth only at 1/16th preview resolution. Can you suggest a player that opens the original file to grab frames?

Smart Rendering GH4 4K on Windows? Wed, 28 Jan 2015 06:05:46 -0700 NickHope 12262@/talks/discussions Before I start archiving the best parts of my footage in MagicYUV lossless .avi format at a bitrate 18x bigger than the original, I am wondering if anyone has found a way to reliably smart render (no recompression) 4K UHD MP4 footage from the Panasonic GH4. My typical nature footage features a lot of unwanted head and tail. Really I just want to split the files on the PC, not in-camera. I don't care if it's forced to i-Frames or if the first and final GOPs don't render well.

The "main" NLEs won't do it. I tried TMPGEnc Smart Renderer and that didn't work. I expect it's beyond VideoReDo and Womble.

I have heard that Cyberlink PowerDirector tries it but there are glitches in the result from version 12 (reported at ). Unfortunately the version 13 trial version doesn't support 4k so it would mean spending $80 on the program to test it.

I also notice that Corel VideoStudio Pro X7 features "4k smart rendering" and there is a fully-functional trial version but it's 800MB.

2016 Best Export Settings for YouTube Wed, 28 Sep 2016 21:13:25 -0600 matt_gh2 15812@/talks/discussions Thought I had my secret sauce for export settings...but pulled a project from about a year ago, making some tweaks, and re-exported using my previous primo Premiere Pro settings...but image was destoryed. Tons of banding/blotchiness, general low resolution, etc (Even when playing in 1080 on YouTube). I was using H.264, 12 Mbps for Target Bit Rate, and 40 Mbps for Max Bit Rate, High Profile 5.1, and checking lower box for rendering at max quality. 3 minute video was 253 MB. I guess YouTube has changed their ways they compress/encode etc. Last year this export looked it's horrible!

What's everybody using for their export settings these days for YouTube? (and Vimeo for those interested there too)

Tip for importing 'missing' GH2 clips in Final Cut Pro X Mon, 04 May 2015 22:52:04 -0600 arvidtp 12929@/talks/discussions Often I find that when I go to import footage from an SD card I've shot on my GH2 (hacked, settings are Sanity 5.1 or Sanity X) Final Cut X's import window will not see some earlier video clips I'd shot (and not yet imported). I discovered after a recent shoot that if I turned the camera off, changed the battery, turned it back on and kept shooting, only the clips shot after the battery change were visible to FCPX. So, after cursing at FCPX as I am wont to do, I started copying the .MTS files (which thankfully are always still there on the card) and preparing for the annoying process of concatenating spanned clips by hand and re-wrapping them all, when I hit upon the idea of seeing if I could just repair the AVCHD file structure.

Well, it turns out to be pretty simple. It seems that when the GH2 is power cycled, it makes a new playlist in the AVCHD structure (you can tell because there are multiple .MPL files in PRIVATE/AVCHD/BDMV/PLAYLIST/), and FCPX only sees clips from the most recent playlist with no way to switch to another playlist.

After a little hunting with a hex editor, I found that PRIVATE/AVCHD/BDMV/INDEX.BDM tells the importing software (at least in the case of FCPX) which playlist to look at. There is a number at the end that matches the number of the most recent playlist file (eg 00001) for 00001.MPL. So if you import the visible footage, you can then backup INDEX.BDM and use a hex editor to change that last number in it to the number of the previous playlist. You're just changing a single byte! Save, then open the FCPX import window again (maybe you need to relaunch FCPX? - don't remember) and the clips that were missing will probably be there. I assume you could repeat the process if you had 3 or more AVCHD playlist files on the card.

for a free hex editor on mac, I recommend Hex Fiend:

Don't use a normal text editor – more than that single byte will probably change and you'll be sorry.

So to summarize

If missing clips in FCPX import:

  • import what you can see
  • check for the presence of multiple .MPL files
  • change the 5 digit number (eg 00001) in INDEX.BDM to refer to a different .MPL file
  • import again in FCPX - missing clips should show up

attached are some screenshots of changing the contents of INDEX.BDM.

Hope this tidbit of knowledge helps some people out. I wish I had discovered it a year ago – would have saved me some aggravation for sure.

Using alpha channel for correcting playing video? Mon, 19 Oct 2015 00:54:08 -0600 Vesku 13955@/talks/discussions Is there any way to use real time image adjustments with alpha mask channel in video player?

I have uneven back light in my TV and it would be nice to have a masked correction for display faults. Corner color and contrast are also fading when watching very close. A mask correction would help for that too.

Recovering a .mov 4k file Fri, 12 Aug 2016 01:46:28 -0600 davjd 15510@/talks/discussions Hi, my phantom 3 crashed yesterday, and the video recording was interrupted because the battery fell out. I was recording 4k@25fps (.mov). The file is there but is not usable because has not been closed properly. Any suggestion on how to recover it? Or is there a thread that can help me? Thank you for answering.

Codec help! HVC1 encoding Tue, 14 Jun 2016 19:34:41 -0600 Gethinc 15219@/talks/discussions I've had a stock library refuse my h.265 6K files, but will take hvc1. I'm struggling to find any info on it. Anyone any wiser than me out there? Ideally I'd like to encode straight from adobe media encoder, rather than trans-coding.

4K HEVC 10 Bit Mastering and Exporting Thu, 12 May 2016 08:25:55 -0600 Tron 15071@/talks/discussions Seeing as how things are finally moving in the direction of HEVC and 10 bit (Rec.2020) on the delivery side of things, I'm curious as to what 10 bit camera recording bitrates we could expect to see coming down the road. ProRes intra codecs seem unnecessarily overweight at 4K resolution and will probably not be offered by Canon, Sony, Panasonic and JVC for internal acquisition (prosumer class). I'd be OK with a long-GOP HEVC codec seeing as how the new GPUs all seem to support hardware decode/encode capability.

Would 200 Mbps be a reasonable bit rate to expect for next-gen cameras like the GH5 if they support internal 10 bit? Any opinions on whether companies like Blackmagic or Atomos will eventually offer a recorder with HEVC option that's easier on storage media? Anyone currently working with10 bit HEVC delivery pipelines? Thanks.

seeking source code developer: make preset, mts/avchd > image sequence? Thu, 05 May 2016 00:13:33 -0600 smrlo 15044@/talks/discussions here's the link to the program: I'm not skilled at all in coding at all, anyone willing to look into making a preset?

Otherwise, anyone got a clue how I can convert mts to raw images? Is that even the best conversion to try with the gh2 hack?

GH2 and FCP7 import problem Fri, 08 Apr 2016 09:59:07 -0600 klausvonperkele 14935@/talks/discussions Hi!

After 3years I finally took my GH2 back in use and shot some video. Everything worked just fine, but when I tried to import to FCP7 I had "no data".error? This happened to half of my material? Others imported just fine. Any ideas what has gone wrong? GH2 is hacked with (maybe Flowmotion hack? no quite sure…) i tried google for answers, but none of them worked for me… Anyone got some ideas what should I do?

Do you use banding filter? Fri, 25 Mar 2016 03:38:21 -0600 Vesku 14868@/talks/discussions I have found a way to improve my playing GH4 videos using clever dithering by banding filter. It removes noise, banding and rough colors and the result is like 10bit video in 8bit screen. I use Potplayer but I think there is bedanding filter in other players too. I have one sample frame. Look the smooth gradients and still very sharp details. The effect is even better in playing video. The trick is to use that filter in player so that the re-compression is not removing dithering effect.

collecting ideas to build up a AVCHD - ProRes - Resolve workflow. Fri, 21 Sep 2012 17:59:55 -0600 peaceonearth 4670@/talks/discussions I had two large project of 3 days shooting each (for me it's large), having shot some hundred clips in CM Intra patch means 300 - 400GB of data for each project. I had no story board as basis for a timeline just rough ideas of my clients so I had to review all the clips and started to work natively in PremierePro to create a story line. I am quite happy with Premiere and native mts files but there was some grading neccessary and I had to hand over the project to a colorist. It doesnt work with mts files.

I could have converted all files to QT ProRes before starting editing but it's needless to mention that the huge amount of data is hard to deal with and converting is time consuming too. How could I do it better next time?

60p to 60i Fri, 18 Mar 2016 09:18:19 -0600 fran 14820@/talks/discussions Hello, We are going to shoot a tv show for Japan, here in Spain. We got FS7 on NTSC 60i as they want it, but is imposible to shoot interlaced on A7sII. I' m wondering about to put the small A7S II on NTSC 60p and leting them interlace in post the footage. What do you think? Would be a total mess or will work for them? Thanks

4K Downscaling progress topic Thu, 19 Jun 2014 17:13:01 -0600 RRRR 10637@/talks/discussions I couldn't find anything dedicated (and I may have missed something important) so: This is a topic dedicated solely for any kind of progress updates on software, code and methods to downscale 4k with best possible results to help people establish a workflow for converting 4k footage. Meanwhile, it may be a good idea to also map the best downscaling methods that already exist.

Best render settings for Youtube Sat, 06 Jun 2015 21:04:15 -0600 MikeLinn 13132@/talks/discussions

XAVC-S vs MP4 Recording Formats Sat, 05 Mar 2016 04:53:12 -0700 glenpinn 14713@/talks/discussions Hi everyone, i am in the market for a new 4k Video Camcorder, after dumping my FZ1000 last year as it just didn't suit my Run-n-Gun shooting style when mounted on my hand rig and my Flycam HD3000 stabilizer.

I have kind of short listed between the new Sony AX53 (1/2.5" sensor) and the AX100 (1" sensor) as it seems both Cams offer me everything i need for the type of shooting style.

That aside, both record 4k/25p and 1080/50p in the XAVC-S format @ 100Mbps, and my previous FZ1000 Bridge Camera recorded in MP4 @ 100Mbps, but back when i got the FZ1000 i had not really heard a lot about XAVC-S as i rushed into getting the FZ1000 because it was cheap.

so my question is, i have read some stuff about XAVC-S being a more efficient format than MP4, others just say that is not true, and i just can't seem to find anything definitive about how they both work, and if one is actually better than the other, for both 4k and 1080 modes.

My friend has a Panasonic VX870, and it shoot 4k/25p MP4 @ 72Mbps (it only averages 62 to 65 max so far) and the 4k seems to look ok, but i have seen some samples from an AX55 (ak AX53) and it just seems to look nicer for some reason XAVC-S at a higher bitrate maybe, better glass, better sensor, not sure)

If anyone can shed some light on XAVC-S vs MP4 i would appreciate some advice, or links to some useful information.


Windmotion - upsampling to 4:4:4 Fri, 25 Jan 2013 20:57:48 -0700 zsero 5909@/talks/discussions I've just seen this post over at doom9 forums about a guy making a super high quality filter to upsample to 4:4:4 16-bit. Especially for GH2 / GH3 owners. Trying to invite him over here.

HEVC Video Codecs Comparison 2015 Mon, 11 Jan 2016 16:18:29 -0700 Vitaliy_Kiselev 14415@/talks/discussions image



Need Davinci Resolve Lite 9.0.4 Mac .dmg Wed, 27 Aug 2014 02:19:03 -0600 Psyco 11135@/talks/discussions I'm need Davinci Resolve Lite 9.0.4 as its the last version that runs stable on OSX 10.6.8. I want to convert the raw files from BMPCC and can't upgrade the OS because of other hard- and software (and because I want an OS I can work with;-).

Has anybody still that .dmg or .zip and can upload it for me to some file sharing platform please?


cineform help Wed, 25 Nov 2015 16:58:25 -0700 jclmedia 14118@/talks/discussions So right now Im tryin to get this to work , Im having trouble finding the cineform presets for media encoder.

can someone please help me.

Sony Vegas Pro: Transcoding, importing and exporting Fri, 08 Jun 2012 02:01:03 -0600 DeShonDixon 3504@/talks/discussions Does anyone know a good codec for format to convert my GH2 footage to before it enters Vegas without losing any quality at all? Because importing the GH2 footage nativity lags like crazy on my not so fast PC. And also I've tried 5DtoRgb or whatever its called and when enter I import a shot into it, it just crash on me so that won't work for me and neither will converting my footage to AvidDnxHD codec cause that lags like crazy in Vegas too. I've converted my footage to 35mb XDCAM in vegas which works great but I lose quailty. Also I need help with my exporting to the web. I normally edit my footage nativity while its lagging like crazy then export out as Cineform.avi with 4:2:2 selected and Filmscan 1 then I convert it to H264 using mpegstreamclip but I lose a buttload of quailty. I've also tried virtualdub and converted to .avi x264 but doesnt work so well for me either neither does converting through Adobe's Media Encoder. I've also tried to export directly out of vegas as a .mp4 but even at two pass vbr 70-240mb. Like I know im supposed to lose some quality when uploading to the web but I tend to lose a whole lot! I see people that export at only like 10mbs and get much sharper footage than me! Also is there anyway to import a vegas project into after effects? I know FC7 or Avid can do it with automatic duck. Does vegas have anything like this or anyway to do this? But yeah I know im asking a lot but if anyone could help that would be great!

workflow with gh4 footage and LUTs Wed, 21 Oct 2015 04:09:31 -0600 paglez 13972@/talks/discussions Hello. I'm absolutely newbie using LUTs with my GH4 footage, and I have a plenty of doubts:

Once I have my raw footage into NLE (Adobe Premiere) whats it's the sequence order to apply the LUT?. I do the following procedure:

A) I put the footage in timeline. B) I apply a Filmconvert profile ( GH4 and Vlog) or Lumetri input tecnical LUT C) Then I open 'color' tab; I go to 'basic' tab and I do the necessary basic corrections, but I doesn't apply any input LUT. D) Finally, in Advanced tab, I make my 'creative' look and I apply a Output LUT.

It is correct this procedure? Thanks.

PHOTOfunSTUDIO 9.7 PE Sun, 18 Oct 2015 13:06:20 -0600 Scot 13952@/talks/discussions My question or observation in need of confirmation is on the format conversion function. I need to convert my G7 4K footage to either FHD MP4 or MOV but I'm having an issue. The first is that my 24 fps footage is being converted to 30 fps and I see no way to stop that. Is this the way it is or a bug anyone else notice it? The other issue is I converted to both MP4 and MOV and the MOV file seems to be identical to the UHD file visually but the MP4 version definitely has increased contrast. Can anyone explain this? Looking for any solution or suggestions. I'm using Resolve 12 to edit which on my system has a very difficult time with the UHD files which is why I need to convert.

Playback of edited 4K on camera Sat, 20 Dec 2014 16:37:15 -0700 SAS 11999@/talks/discussions Hi all, I have searched for existing answers to this question/issue all over this site and google, but have yet to find anyone with the answer:

I have the FZ1000 but I hear the problem is the same for GH4:

I can currently only playback individual 4k clips in camera over HDMI to a 4k TV, but I wish to make an edit and play it back...

Is it possible, once I have edited a 4k Video, to make it playable in camera so that the edit can be displayed over HDMI on a 4K TV or monitor?

Many Thanks for any solutions, as my friend has a 4K TV and I have a FZ100 so we would like to be able to playback an edit in camera over HDMI so that we can watch my work..?

Slowing down a filmed screen from 50p to 25p Wed, 14 Oct 2015 09:49:50 -0600 TimTomTum 13930@/talks/discussions Hey guys,

for a video installation I need to film a screen and stuff happening around it. When I import the 50p file to premiere and slow it down to 50% the footage looks choppy. Why?

So the process: I have 50p footage on the screen. Check. I film it with 50p check. I slow it down in premiere: Fail.

Anybody knows what that could be?

Cheers, Tim

QUESTION - GH2 AVCHD Timecode Corruption on Import into FCPX Sat, 01 Dec 2012 19:34:22 -0700 nyexcuse 5349@/talks/discussions So I have had this issue for a couple weeks now, and I don't know where else to turn.

I hacked my GH2 a few months ago and things have been pretty lovely so far. A couple weeks ago, however, as I was importing some AVCHD files from my SD card (64GB SanDisk Extreme) into Final Cut Pro X and some of them gave me this error upon import:

"Import Failed: The following clip encountered an error during import and is still referencing media on the camera: Clip Name: 2012-12-01 19:21:00 Event: X Original Name: Clip #X Volume: NO NAME"

After looking around, I noticed that the files that presented this issue had a strange timecode. Instead of displaying a normal start time of "00:00:00:00" they started with "23:27:41:06". Only some files are like this, and as far as I can tell it only happens to clips that used lenses that have been adapted to the camera (non-4/3 Panasonic lenses).. Other than that I don't know what's going on.

Has anyone else had this issue? Is there anything I can do to fix it?


What is the right ratio for anamorphic 4k gh4 footage? Wed, 30 Sep 2015 13:07:30 -0600 tigerbengal2009 13860@/talks/discussions Hi sorry for this basic question but I am really confused about aspect ratios with the gh4, a friend of mine shot a video with his gh4 using an anamorphic attachment 1.75x, he was using 4k 3328x2496 in 4:3 anamorphic mode. with a regular camera that shot 16:9 I just multiply the width for the anamorphic number either 2x, 1.5 etc and the video looks fine, but gh4 4:3 mode I do not understand how to find the right ratio.

how to unsqueeze this on Premiere of FCPX?, I tried 1.78x 3328 but this is not the answer because of the 4:3, what is the logic/numbers to convert anamorphic 4:3 to proper ratio 2.39:1?

also he shot some pictures, I attached an example, which is the ratio to convert the picture to the correct size?

any help suggestions would be appreciated, thanks in advance