recently I've read a lot of discussions about codecs, exporting, compressions, etc..., but I still haven't received an answer to a question how to stay with the same video quality as the originally filmed.
I have video that is taken with GoPro9: H.265, 1090x1080, 60Mbps, 260fps. The video is just wonderful! It's about 4 minutes long and and takes about 2GB on my HD.
I just want to cut some highlights from it and connect them to a short clip.
I've tried many variants of export, including production and all "from source" options, but the result is always 3-4 times larger on disk and in a much worse quality! It makes me crazy.
I see all the clips in youtube that are taken with GoPro and I obviously see that my results can be much-much better. So how do they do it? How do they preserve a great quality of edited videos?
How do I work lossless during all the process: from importing, through editing and exporting? Logically, the result must be in IDENTICAL quality, but significantly smaller, since I take only 30 seconds from a 4 minute video.