Gopro Cineform Codec Mac

  1. Gopro Cineform Codec Machinery
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This might be beating a dead horse, but QuickTime trulysucks.

Gopro Cineform Codec Machinery

For those using 16-bit (deep color) applications, always use the Force 16-bit encoding option, it is the highestquality and surprisingly, it is often the lowest data rate.

In short, for application compatibility, most AVI/MOV compatible editing and effects applications can work with Cineform codec, with the help of GoPro CineForm Studio. Latest version of wondershare filmora 32 bit offline installer. Recommend: GoPro Cineform Studio Premium (Trial)+ Quicktime7 on MAC OS, while GoPro Cineform Studio (free) + Quicktime7 on Windows.

Codecs its CINEFORM Go pro Owns Cineform, thats the reason they use that codec when you first transcode form h264 (straight from gopro protune) to Cineform, also in the process you are able to De-fish the footage. Also thats what they say its the absolute best to keep quality instead of editing with the original h264 (extremely compress files). GoPro Studio software makes it easy to turn your GoPro clips into awesome, professional-quality videos. Drag-and-drop GoPro Edit Templates help fast-track you to an incredible video. The music, edit points, slow-motion effects and more have been dialed in—all you have to do is replace our clips with yours. Supports GoPro, Canon, Nikon and other constant frame rate H.264 mp4 and.mov formats GoPro CineForm codec provides up to 1080p with deep color in 3rd party software Read more.


QuickTime loves 8-bit, it prefers it greatly, and supportfor deep color is difficult at best. Overthe years we tried to make the 16-bit the preferred mode for our codec within QuickTime, yet there are many video tools that broke when we did this. The compromise was to add the Force 16-bitinto the QuickTime compression option, to allow user to control the codecspixel type preference – applications that can handle 16-bit will benefit, andapplications that don’t, still work.
Using After Effects for my test environment (but the sameapplies to other QuickTime enabled deep color applications.) I created a smooth gradient 16-bit image, then encoded itat 8-bit using using a 8-bit composite, 16-bit using a 16-bit composite and 16-bit using a16-bit composite with Force mode enabled (pictured above.)
Without post color correction, all three encodes looked pretty much the same*, yet the data rates are very different.
* Note: QuickTime screws up the gamma for the middle option, so with the image gamma corrected to compensate, they looked the same.
The resulting file sizes for 1080p 4:4:4 CineForm encodes at Filmscan quality:
16-bit – 28.4Mbytes/s

Gopro Cineform Codec Machine

Our instincts that higher bit-rate is higher quality will lead us astray in this case.
Under color correction you can see the difference, so I went extreme using this curve:
The result are beautiful, really a great demo forwavelets.

Gopro Cineform Codec Macro



Zooming in the results are still great. Nothing was lost with the smallest of the output files.

Of course we know 8-bit will be bad
We also seeing the subtle wavelet compression ringing atthe 8-bit contours enhanced by this extreme color correction. This is normal, yet it shows you somethingabout the CineForm codec, it always uses deep color precision. 8-bit looks better using more than 8-bits tostore it. That ringing mostly disappearsusing an 8-bit composite, an 8-bit DCT compressor could not do as well.
Storing 8-bit values into a 12-bit encoder, steps of 1,1,1,1,2,2,2,2 (in 8-bit gradients are clipped producing these flat spots) are encoded as 16,16,16,16,32,32,32,32, the larger step does take more bits to encode – all with the aim to deliver higher quality. Most compression likes continuous tones and gradients, edges are harder. Here the 8-bit breaks the smooth gradients into contours which have edges. The clean 16-bit forced encode above is all gradients, no edges, result in a smaller, smooth, beautiful image.

Now for the QuickTime craziness, 16-bit without forcing16-bit.
The image is dithered. This is the “magic” of QuickTime, I didn’t ask for dithering, I didn’twant dithering. Dithering is why the file is so big when compressed. QuickTime is given a 16-bit format, to acodec that can do 16-bit, but sees it can also do 8-bit, so it dithers to8-bit, screws up the gamma, then gives that to the encoder. Now nearly every pixel has an edge, therefore a lot more information to encode. CineForm still successfully encodes dithered images with good results, yetthis is not want you expect. If you wanted noise, you can add that as need, you don't want your video interface (QuickTime) to add noise for you.
If anyone can explain why Quicktime does this, I would loveto not have users have to manually select “Force 16-bit encoding”.

Codec
P.S. real world deep 10/12-bit sources pretty much always produce smaller files than 8-bit. This was an extreme example to show way this is happening.

CineForm Intermediate is an open source (from October 2017)[1] Red alert 2 free. download full game exe. video codec developed for CineForm Inc by David Taylor, David Newman and Brian Schunck. On March 30, 2011, the company was acquired by GoPro which in particular wanted to use the 3D film capabilities of the CineForm 444 Codec for its 3D HERO System.

The press release in the GoPro acquisition noted that CineForm's codec has been used in several major movies including Slumdog Millionaire and Need For Speed.[2][3][4]

History[edit]

The CineForm Intermediate Codec was originally designed in 2002 for compressed Digital Intermediate workflows for film or television applications using HD or higher resolution media. The CineForm media is most commonly wrapped within AVI or MOV files types, using the 'CFHD' FOURCC code for all compressed media types.

Current[when?] implementations support image formatting for 10-bit 4:2:2 YUV, 12-bit 4:4:4 RGB and RGBA, and 12-bit CFA Bayer filter RAW compression (as used with the Silicon Imaging SI-2K camera.)

All compression is based on an integer reversible wavelet compression kernel, with non-linear quantizer to achieve higher compression. Compression. GoPro.com. 2017-10-25.

Gopro Cineform Codec Download Mac

  • ^[1]Archived June 24, 2011, at the Wayback Machine
  • ^'NextWaveDV – GoPro, sports camera manufacturer acquires CineForm, video compression software company'. Nextwavedv.com. Retrieved 2015-05-30.
  • ^'GoPro® CineForm Codec Standardized by SMPTE® as the VC-5 Standard | Society of Motion Picture & Television Engineers'. www.smpte.org. Retrieved 2016-02-18.
  • ^'FFmpeg git - Cineform HD'.
  • ^'SMPTE Taps GoPro Compression Technology for New Industry Standard'. GoPro.com. Retrieved 2015-05-30.
  • ^'VC-5 Video Essence Part 1: Elementary Bitstream — SMPTE Standards'. Smpte.org. Retrieved 2015-05-30.
  • ^Kunhya, Kieran (2016-01-01). 'Reverse Engineering the GoPro Cineform Codec'. Medium.
  • ^'The GoPro® CineForm video codec SDK'. GitHub.com. 2017-10-25.
    • Gopro cineform codec machine
  • ^'GitHub - gopro/Cineform-SDK: The GoPro® CineForm video codec SDK'. GitHub.com. 2017-10-22.

    • External links[edit]

    Retrieved from 'https://en.wikipedia.org/w/index.php?title=CineForm&oldid=1008330817'

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