Author Topic: 14 bit h264 video possible?  (Read 3536 times)

crash-film

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14 bit h264 video possible?
« on: June 25, 2013, 06:04:45 PM »
tonight i had a pretty weird idea and i´m already researching h264 in detail and also found some software to extract motion vectors from h264

https://sites.google.com/site/wsgyou/research/livevideo
http://sourceforge.net/projects/livevideo/

h264 is a interframe codec. based on I-frames (intra frames, still images) which act as color and luminance source and P- and B-frames which contain pixel associated motion vectors. based on this information the decoder recreates a moving image.

the idea is based on the question if it is possible to record the live view image as a normal h264 stream and at the same time record raw images at a rate of maybe 6-8 frames a second.

now take the h264 video as a motion source and the single dngs as a "image content" source.
so the same way twixtor or any other motion vector based software interpolates inbetween images, this could - at least in theory - be a way to recreate a 14 bit video based on h264 and raw recording.
no need to create motion vectors, they are already recorded.

but the key would be the possibility to record h264 and raw simultaneously.... so i ask you: is this possible?

advantages?
could be a way to get rid of memory bottlenecks.
upscaled motion information could be sufficient enough to make your 6 fps high res images play back smoothly @ 24 fps....

this is just an idea of making some kind of compressed raw available.

linyingyen

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Re: 14 bit h264 video possible?
« Reply #1 on: June 27, 2013, 06:41:20 AM »
well, would it work to record 24fps H.264 via HDMI, and record 6fps raw internal into the CF?

frontloop

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Re: 14 bit h264 video possible?
« Reply #2 on: June 27, 2013, 10:51:34 AM »
RAW from whole sensor is only possible with 5DIII? Or how is it?

Is H.264 working in crop modus?