720p video compress12/6/2023 ![]() It would be kind of waste to get rid of that quality. Your source material of 2 GB 1280x720 would probably be of good quality, if it's not a many-hour-video or some old codec. ![]() But depending on the case, sometimes even smaller file could be rather good. It should probably be good if you get a 1 GB file. It doesn't always work so well, but you could get a decent estimate. Then, compare the sizes of the preview files, and extrapolate them to get the size of the whole video. But this is for FHD video, for HD it should probably be lower, but I don't have so much experience of that. With 22, the result is, well, good, that would be a sweet spot for many. But it's still noticeable for everyone if they compare it image over image (either add the other image as a new layer and toggle the layer visibility on and off or just use your image viewing application pushing left and right arrow back and forth if it's fast enough). That's not good enough for me, but for most people it's great. With 25, there's much more texture visible, now often "only" one pixel too blurry. Generally the most annoying thing is people's faces missing textture. But if the source doesn't have much texture, then it should be ok. But very much of the surface structures are blurry. If the video material was somewhat similar to mine, but it probably isn't.Īnd for example if it's something mundane, such as some talk show, constant quality 30 would be probably ok, and most people are used to watching material of that quality. So, since you're not so concerned about the quality, the number should definitely be bigger, meaning worse quality. Last time I encoded something, the material was quite blurry, old film, and I first went with constant quality 18 RF, fast, 10-bit HEVC, and that was fine, but then I eventually went with 19 RF, slow, and the result was so close to the original, that I deleted the original file, which is quite uncommon for me. For me, usually, the time is actually the most problematic part of the encoding.Ī great but small file needs much time encoding, although, with constant quality, the encoding time usually increases the file size too. Use the "preview" to check if the quality is acceptable. How to mix them? With time and a proper format (slow encoding, 10-bit, and not NVENC, not constant bitrate), for example.
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