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It seems DSLR Controller dev is working on implementing color conversions for LV mirroring: http://forum.xda-developers.com/showpost.php?p=69952745&postcount=3854

[convert MKV to PS4]

HI
I think you can use some third party software to convert the MOV videos into all popular video formats, so i wanna recommend thisHD Video Converter Factory Pro, hope you can try it It is quite useful.

Best

I think the best way to compressing video must meet the next standards: the size get smaller, the video quality must be as original as possible; and the output video must be successfully played on the player. A video converter can perfectly meets the above standards. I used it to convert MKV to PS4 at the first time. With the more times used, I found it can as a DTS converter to convert audio and it can compress the video and audio keeping the original quality. Since the software can automatically set the optimum parameters.

As discussed in previous replies there's plenty of options to place the untouched video and audio streams in to a more compatible format like mp4 and make it playable on devices like PS4. No need to re-encode unless you're short on storage.

Keep in mind ICC is more like a container format which can hold both LUT and matrix/shaper data. Should we discover Canon uses a standard-compliant implementation conversion between formats would be trivial with open source tools. First we need to figure out how to reliably extract ICC profiles from a pf2. Opening such a file in ICC Profile Inspector could also give us some clues.

That's incorrect. 0dB is the baseline level, the others are amplification factors.

ML Audio settings override Canon settings. You probably want to keep analog gain in the camera at minimum and raise external preamp gain until the signal stays just below 0dB.

Cool find. On my 600D with an exFAT card I haven't been able to get around the 4GB limit. I used a bootable 16GB SDHC card with 32k clusters. Maybe it's down to Digic IV on 600D vs Digic V on 650D? More testing by the community on different cameras would probably help.

Can someone confirm my findings? Formatting as exFAT doesnt circumvent the 4GB file limit on H264.

I'm not sure yet what interpolation is used (if any) but it should be possible to create alternative log profiles by first offsetting the RGB gamma curve - however, 8bits isn't going to be nearly enough for most types.

Perhaps Graeme Gill can provide further insight on effective curves for 8-bit capture.

A custom picture style could be used for realtime. With REC PicStyle enabled you can simulate  BT.709 while setting up a shoot. Or if you skip REC PicStyle it actually becomes BT.709 conversion, just edit the file headers afterwords, you lose some color range though. Lately I'm checking the picture style hacking thread daily

Nice find.

Would be nice to run the same test on all other cameras (so ML should know what color matrix to use). Volunteers?

What can ML do with matrix data at this point?

I placed red objects on a table and dumped the image buffers and converted with 422ToImage v1.9.2. Then loaded the jpeg into avisynth:

Code Select Expand

Y = JpegSource(source, rec=0, channel=0)
U = JpegSource(source, rec=0, channel=1).Spline36Resize(Y.width(), Y.height())
V = JpegSource(source, rec=0, channel=2).Spline36Resize(Y.width(), Y.height())
YToUV(U,V,Y)
ConvertToRGB32(matrix = "PC.601")

and compared to the last line replaced with

Code Select Expand

ConvertToRGB32(matrix = "PC.709")

The first one looked more correct. The second had red shift to yellow, which would be expected from a BT.601 image interpreted as BT.709.

The conslusion I can draw from this: 600D assumes a BT.601 output device. This may also explain why I was adding too much magenta when monitoring on my phone display which is calibrated to sRGB (which shares primaries with BT.709). In case color remapping cant be done effectively in camera I have raised the issue with Chainfire, developer of DSLR Controller: http://forum.xda-developers.com/showpost.php?p=68892617&postcount=3787

On my 600D H264 uses BT.601 color matrix. Jpegs use sRGB (BT.709 equivalent). Does anyone know if LV in shoot mode uses a consistent sRGB/BT.709 colorimetry?

I only remember reading claims of faithful being a close match between input and ouput at 5500k. Neutral has some mild color biases like greener yellows and desaturated whites. I always assumed BT.709 was used in H264, which HD video and JPEGs tend to use, but now I see the video headers report BT601 so the plot thickens...

Maybe it's just the way the LUTs are but Faithful seems to have better color depth.

I could be mentioned that not shooting flat is challenging. Exposure and WB must be spot on or you're screwed. Having a calibrated external monitor is the only way. Luckily you don't need to spend big money on dedicated hardware, LV mirroring can be done several Android phones and tables that allow display calibration after rooting.

Yes that could be useful. As for creating icc profiles one can convert 3D luts to icc profiles with for instance OpenColorIO. Tip from Andy600 a while ago. That fact doesn,t really solve the core issue here for know but might be useful later.

I might be wrong but argyllcms does this too.

ICCs contain can contain LUTs but also matrix data. No one will be surprised though if the data in a pf2 is represented in a proprietary way can't interpret like existing standards like ICC and DCP. I hope one day we will able to convert an ICC or Adobe DCP to pf2. That would allow for capturing colors with high accuracy for documentary footage or slide transfers using DCamProf for profiling, or film simulations straight out of the camera.

Cool.

I tried out the extended picture styles on canons site without expecting much but found Emerald to look very usable after some tweaking. I normally use Faithful contrast:2 saturation:2 which doesn't need grading in post but I after today's short test I can see myself trying Emerald on next shoot. I think anyone that likes the warm tones of faithful will like this one.

Take a walk here: http://www.magiclantern.fm/forum/index.php?topic=16299.new#new

Cool thread, I keep following it. But there's not much talk about why it's better than getting the desired look out of camera. Anyone can say flat shooting is the only way to do it, but it takes more than that to say it's justified. I found an article that goes against the grain merely but talking about the pros and cons of both ways: http://www.shutterangle.com/2012/canon-picture-styles-shooting-flat-or-not/ I'm guessing it's really more relevant for projects that have specific color grading requirements, like feature films. Would you bother shooting flat for a documentary and risk color banding from pushing 8-bit video? That's hardly the look of film.

I like enabling absolute zero sharpness under video tweaks to avoid any ugly haloing in H.264 video but I don't like that it overrides picture style sharpness when not recording as this makes LV Digic peaking a little less effective.

No kind of profile will give you a "film look" as it's not film. To make it look like film you'll need to grade and emulate a film stock and add grain... However... Different profiles can definitely make your footage less like "video", but as @dude said, that really just means recording with zero sharpening.

That doesn't mean it will then look "cinematic" though - which is perhaps what I think you really mean(?). For that you'll need to focus more on composition and lighting, not your picture profile.

Here's a comparison I did between RAW and h.264 with the "faithful" picture profile with zero sharpening:

Neither looks like "film" because they're just random clips without any real thought to composition or lighting, but the h.264 holds up well providing you capture it correctly in camera - which is crucial.


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I made some tests with your picture style settings (Faithful, Contrast:1 Saturation:2) in different light conditions, and damn, totally nailed that "already graded" look I was going for.

Yes, any test you find on this thread, that was not done on 600D.

Same for any other camera

I'll start reading through the thread when I'm less busy. Though I don't mind  if I can be pointed to specific test procedures in the mean time.

Do devs need help with testing on 600D at this time?

When low light performance and good looking motion are equally important I've found things look acceptable up to 225°, for example 1/38 at 24fps.

- WB shift values back on the LiveView info bar

Can't wait for this feature.