Messages

1% - thanks for the heads up; I just read through that thread.
Shame about CABAC but is that simply a parameter that a future ML implementation can adjust (=fix)?
I'd say High Profile without CABAC would still improve PSNR somewhat vs. Baseline though, if B-frames are used properly.

So no luck switching a Digic 4 model to High Profile (with our without CABAC)?

Hi 1%,

- I'm not sure what you are referring to when you say 5.2 and 7?

- On QP, ML already has control for QP via Qscale.

- At high bitrates, profile can be a bigger driver of quality than just bitrate. Baseline profile offers only a limited set of the technologies that make H.264 powerful (No B-Frames, no CABAC, etc.) On a encoded-quality-per-bitrate basis, the 5d3 will blow older cameras out of the water as a result.

For Canon models before the 5d3, the video encoding uses only the Baseline Profile of H.264 which is significantly less efficient (=lower quality for the bitrate). There is a useful visual comparison about a third of the way down the page at http://keyj.emphy.de/video-encoder-comparison/

Can ML implement Main or High Profile H.264 on any of the Digic 4 models?