![]() ![]() ![]() ![]() (Thanks to Tim Johnson, Investor and Management Consultant for the concise and maybe over-simplified explanation. Once editing is finished, you might create an h.264 copy so you can play the file on an iPhone or send to YouTube. H.264 is used mainly as a delivery codec. You can correct color, add titles and effects, etc. So the standard practice is to convert everything to full frames on import. You can overcome this by converting to full frames (ProRes) as you are editing, but this takes a much more powerful processor and more memory. This is much better for editing, because if you edit out the full i-frame in a group of pictures (as in H264), you make the next 24 frames worthless. It is not dependent on the other frames around it. Import that project (not open) Nuke your prefs (google 'reset Premiere prefs') Even if its' the student version Call Adobe - you pay for this, they provide suport. A low memory warning sometimes comes up and at other times there is static coming from the speakers. ProRes 422 is still somewhat compressed, but each frame stands on its own. Premiere CC keeps randomly crashing to a black screen, the system remains on but nothing on the screen this can happen 1+ hours into a session or after 10 minutes. These partial frames will have information like direction of motion, and what has changed from the previous frame. H.264 is a "group of pictures" compression scheme, which achieves compression by starting with one full frame, and then for the next 24 or so frames, it uses partial frames that attempt to capture what has changed since the full frame. When you bring an H264 clip into a project and edit it, you are dropping some of the information the format needs and then must 're-conform' on the fly. I should have stated transcoding to a codec where each frame is independent of surrounding frames. The GPU manufacturers NVIDIA and AMD constantly release new drivers that unlock the full potential of your graphics card. As this utility solely depends on GPU so you need to update drivers on Windows. Yes, MP4/ H264 is an universal format, but it derives each frame by 'looking ahead' at frames to see what can be efficiently 'tossed out' for compression reasons. In most cases, Premiere Pro crashes occur due to outdated or faulty GPU drivers. ![]()
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