4 ms·

Why would only I-frames make a (positive) difference? Sure it makes decoding for seeking easier/faster but it should end up being lower quality at equivalent bi

• crazygringo 3y ago
  Because it's meant for editing, to be able to cut anywhere without re-encoding. So it needs to be all I-frames. And you're going to use a very high bitrate. This is way more space than consumer codecs use. But still way less than uncompressed video.
  • kiririn 3y ago
    I’m struggling to imagine a use case for removing bits of a video and then saving that intermediate back out without editing or reencoding but if that’s what a video editing workflow calls for then fair play!
    • dylan604 3y ago
      you just described pretty much every single modern day video capture. pretty much all of the dslr/mirrorless cameras are capturing a higher bitrate h.264 as source.
    • kierank 3y ago
      How would you edit a sports highlights package?
  • dylan604 3y ago
    shudder, uncompressed. i have nightmares of v210
• dylan604 3y ago
  H.265/h.265 make use of IPB frames. The P and B frames refer back to the I-frame so that each P/B frame has much less information than the I. So if you use only I-frames, that's the best that codec can offer, at a decent bit rate. there's much better descriptions on the web.
  • kiririn 3y ago
    That doesn’t make sense, at the same bitrate encoding frames with no dependency on previous frames can’t possibly look better or be the best the codec can offer, or there would be no reason for other frame types to exist
    • thejazzman 3y ago
      They didn't say "same" bitrate but rather "decent" which I take to mean "sufficient" -- and obviously much larger than what you get with lossy(er?) params