HDSLR’s Inferior HDMI and Recording Codec

[Doug Beal]

AVI is a container, the codec contained could be a wide variety of codecs photo jpeg being one of them

quicktime is also a container, holding whatever codec the piece has been encoded to

Doug Beal
Editor / Engineer
Rock Creative Images
Nashville TN

[Greg Barringer]

Thanks for the explaination

[Rafael Amador]

[Robbie Carman] “Noooooo…sorry to say. Current Nikon Cameras are using Photo JPEG while pretty universal is not the greatest nor most efficient, modern codec out ther”
Sorry to disagree.
PhotoJPEG is one of the best codec in the market. Is a production codec, not a distribution codec like the H264, and, for sure, better than H264 for any picture that will be processed.
Rafael

http://www.nagavideo.com

[Robbie Carman]

[Rafael Amador] “PhotoJPEG is one of the best codec in the market. Is a production codec, not a distribution codec like the H264, and, for sure, better than H264 for any picture that will be processed. “

sorry I had photos on the mind that day. Its motion jpeg not photo jpeg.

But I will have to disagree with you about jpeg either photo or motion in general. H. 264 is NOT just a distribution codec. Canon cameras use this codec, and other MPEG 4 variants like HDCAM SR, AVCHD and others are out there and produce superior results to any other jpeg based codec as well as other codec standards like DVCPRO HD. Are you really saying that motion or photo jpeg codecs produce better results than mpeg 4 variants like h.264? You should really do some testing and you’ll find that this is not true on many levels.

I recently was a participant in a study analyzing macro blocking, chroma subsampling, noise, and luma shift in broadcast formats and for sure MPEG 4 variants where head and shoulders above motion jpeg and even MPEG 2 based codecs although not as good as ProRes, Cineform and other lightly or uncompressed codecs. Motion JPEG is an aging standard. While supported by most editorial systems its only main advantage is an extremely low data rate for smaller files. Its not a great codec for overall image fidelity.

Robbie Carman
—————-
Colorist and Author
Check out my new Books:
Video Made on a Mac
Apple Pro Training Series DVDSP
From Still To Motion

[Rafael Amador]

Hi Robbie,
I agree with your disagreement.
We have started using the codec for distribution (as did happens in the past with MPEG-2) but to call H264 a “distribution format” makes no sense
Te possibilities of the MP4 family covers all the need of video production.

[Robbie Carman] “Are you really saying that motion or photo jpeg codecs produce better results than mpeg 4 variants like h.264? You should really do some testing and you’ll find that this is not true on many levels”
No, but I haven’t see yet H264 used as “full power”.
Just looking the MP4 specs we understand that can holds whatever standard of quality we can imagine.
But in FCS, MP4/H264 is very restricted. If you want to go a bit further you need to use Handbrake or some expensive software.
Companies like Artbeats, distribute his graphics as PhotoJPEG. Sure some time they may shift to MP4/H264 or so, but at the moment one of the issues is that NLEs are not yet ready to manage properly this family of codecs.
Cheers,
rafael

http://www.nagavideo.com

[Paul Kim]

Lance, how do you propose to fix moire in post? Or aliasing for that matter. Haven’t seen it done, but would like to know how to get around it if possible.