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.

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?

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?

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?

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.

Cheers

http://compression.ru/video/codec_comparison/hevc_2015/

http://compression.ru/video/codec_comparison/hevc_2015/MSU_HEVC_comparison_2015_free.pdf

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

Cheers

can someone please help me.

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.

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..?

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

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?

Cheers

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

At http://www.demo-uhd3d.com/categorie.php?tag=hdr one can find only two commercial samples, that's all I could find anywhere.

I have been able to generate videos which my 4k OLED TV recognizes as "HDR" by using:

x265 --preset ultrafast --output-depth 10 --transfer smpte-st-2084 \ --master-display 'G(13200,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1)' \ --max-cll '10000,400' input.y4m output.hevc

ffmpeg -i output.hevc -c copy final.mp4

When replaying "final.mp4", the TV switches into HDR mode, and the content is displayed with what appears to be very high contrast.

I haven't experimented much with the master-display and max-cll settings yet, but this wouldn't make much sense with the input videos that I currently have at hand, which simply are of "low dynamic range", and are only of 8bit per channel accuracy.

If you have some sample video material with a very high dynamic range (like shots of scenery with surfaces emitting 400 or more cd/m^2, like a mixed shot of dimly lit indoor stuff in one place and some brightly sunlit plants visible through a window outside), you could make me happy by making it available (in a format conveying at least 10 bits per color channel).

Actually, anyone with a Magic Lantern patched full frame camera (or an Arri Amira) at hand should easily be able to create such a sample shot.

I shoot with a hacked Panasonic GH2, mostly Flowmotion V2. My upload codecs are usually h264 .mp4 varying from 24fps to 50fps. Nothing too extreme. When rendered and exported everything is pretty much synced. But on Youtube they are off.

I work on a Macbook Pro Retina (late 2014) 2.2 Ghz Intel Core i7, 16GB RAM

Does anyone know why or how to fix this? Or is it just me and am I going crazy.

What is the best method of conversion, I seem to be losing a lot of quality with what I am doing, but I am a newbie in this.

I am using Adobe Premiere, thanks

Will transcoding to Prores 442 4K proxy (3840*2160 res) help with memory problem? It sure helped with cpu load (90% vs 35%) for a 4k file in a 1080p timeline...the proxy 4k file is double the size of the original (converted with cliptoolz) but before i do the same for all the project i'd like to know if i'll solve the low memory message?

Any other suggestions for dealing with low memory message?

Thanks!

Thanks for advance for any suggestions. mala

Longtime lurker here.

As part of my graduation project, I'm trying to develop a (web)tool which should make video encoding a lot easier and faster. It's actually a follow up to my previous research, in which a lot of (pro) participants stated that time is often a limit to quality. This tool should provide the best settings based on time and hardware, but it's possible to get settings without those parameters as well. After learning some basic PHP skills, I've completed the base code and I think I need to share it first, before I continue to develop the tool any further. Let me know what you think and most importantly: don't be gentle!

You can view the tool here: link and if you've got any spare time, please provide some feedback in this topic or at the form below the website.

I know there are some issues regarding 4K encoding advice (didn't properly implemented a VP9 algorithm yet), but please any feedback is welcome!

Thanks!

-Jon