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Premiere Pro Hot Topics: Sorting out slow playback for H264 and H265 and transcoding on import 5
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5 thoughts on “Premiere Pro Hot Topics: Sorting out slow playback for H264 and H265 and transcoding on import

  1. Everytime you encode something you lose info, in this case you cant notice it because you are only encoding it once (twice when you are done, or even a third if you send it to AE and you “render and replace”). But wouldn´t it be better to just create proxys so that once you are done you render the sequence with the original raw clips?

    1. Proxies are certainly a viable workflow and in the end might reduce the number of encodes overall. But when you use a high quality intermediate codec like ProRes you can make multiple generations with virtually no quality loss. That is what they were designed for. I remember test back when ProRes came along where it took some 20 generations before any visual loss was seen. In other words, don’t worry about it.

  2. To me, the biggest advantage is that – with any flavor of ProRes – you can also use the “smart rendering workflow” which allows for lightning speed exports and re-exporting after making changes. You do need the drive space to be able to store the footage and preview files, though. I use smart rendering as my primary exporting workflow for most everything.

  3. What role does the preview play in performance? For example, does using a very lightweight preview (half resolution etc.) compensate… or is it the case that premiere pro still needs to decode the source H.264 to create the preview in any event?

    1. I think the term “preview” here is meaninless. Do you mean proxy? You can create a proxy at half resolution and when using an intermediate codec like ProRes will dramatically speed up everything you do.

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