We’ve been waiting for a video mode upgrade since the release of the Canon 7D in 2009. It looks like we will finally get it in the new full frame EOS 1D X!

From dpreview

Enhanced EOS HD Video – New Compressions, Longer Recording
Centered around an all-new full-frame CMOS sensor with larger pixels than those found on the EOS 5D Mark II image sensor, the EOS-1D X utilizes new HD video formats to simplify and speed up post-production work. The two new compression formats offered on the EOS-1D X include intraframe (ALL-i ) compression for an editing-friendly format and interframe (IPB) compression for superior data compression, giving professionals the options they need for their ideal workflow. Answering the requests of cinematographers and filmmakers, the EOS-1D X includes two methods of SMPTE-compliant timecode embedding, Rec Run and Free Run, allowing multiple cameras or separate sound recording to be synced together in post production.

Canon’s all new full-frame CMOS sensor ensures that video footage captured on the EOS-1D X will exhibit less moiré than any previous Canon model, resulting in a significant improvement in HD video quality. A desired feature for many documentary filmmakers using Canon DSLRs was to enable recording beyond the four gigabyte (GB) file capacity and the EOS-1D X is the answer. The new camera features automatic splitting of movie files when a single file exceeds 4GB. The new file splitting function allows for continuous video recording up to 29 minutes and 59 seconds across multiple 4GB files; no frames are dropped and the multiple files can be seamlessly connected in post production, providing filmmakers the recording time they want in the same convenient DSLR form factor. The camera records Full HD at 1920 x 1080 in selectable frame rates of 24p (23.976), 25p, or 30p (29.97); and 720p HD or SD video recording at either 50p or 60p (59.94). SD video can be recorded in either NTSC or PAL standards.

The Canon EOS-1D X also includes manual audio level control, adjustable both before and during movie recording, an automatic setting, or it can be turned off entirely. A wind filter is also included. Sound can be recorded either through the internal monaural microphone or via an optional external microphone through the stereo mic input.