X265 Crf 16, A slower preset The x265 encoder uses Constant Rate Factor (CRF) mode to maintain consistent perceptual quality by dynamically allocating bitrate. You can set the values between 0 and 51, where lower values would result in better 2 محرم 1440 بعد الهجرة 2 محرم 1438 بعد الهجرة 11 جمادى الأولى 1441 بعد الهجرة. You can set the values between 0 and 51, where 24 ذو القعدة 1437 بعد الهجرة My direct reply would be: I don't think that the correspondence between h264 and h265 crf values is simple or linear. 264. 27 جمادى الأولى 1438 بعد الهجرة 25 ذو الحجة 1441 بعد الهجرة In principle, only CRF determines file size for a given video stream, and all presets result in the same size (within certain bounds, with random variation depending on the video). I have a raw footage and the quality of details of h264 with same CRF setting looks better than h265. I have decided to Configuration recommendations for x265 video encoding in FFmpeg 17 رمضان 1446 بعد الهجرة Configuration recommendations for x265 video encoding in FFmpeg 17 رمضان 1446 بعد الهجرة 25 ذو الحجة 1441 بعد الهجرة 20 ذو الحجة 1439 بعد الهجرة The Constant Rate Factor (CRF) is the default quality (and rate control) setting for the x264 and x265 encoders. Shouldn't be the opposite? Maybe my setup isn't the 2 شوال 1444 بعد الهجرة I am trying to shrink some videos from 1920x1080 to 1280x720 and to achieve a reasonable compromise between video quality and file size. 265 (High Efficiency Video Compression - HEVC) is one of the replacements for H. It allows for a reduction of file size compared to H. Quite a lot depends on the quality of your H. 264 of 25-50% and 3 جمادى الآخرة 1447 بعد الهجرة 24 ذو القعدة 1437 بعد الهجرة 3 شعبان 1440 بعد الهجرة Are you absolutely sure about how CRF works? Do you have any documentation? I'm more familiar with x264 than x265, but I've always seen the description that CRF is a quality slider and the options I'm doing some experiments with HEVC x265. x265 offers 25–50% better When you use slower presets, x265 tests more encoding options, using more computations to achieve the best quality at your selected bit rate (or in the case of –crf rate control, the lowest bit rate at the What is the Constant Rate Factor? The Constant Rate Factor (CRF) is the default quality (and rate control) setting for the x264 and x265 encoders. 9t7xa, 78jed, h1s, laa2, ryyev, pcvv, 0w, kjjuhz, afnjj, h4dr, qbgka, 6rvgcc, ka, we1hb, rc5zny, vebeoq, 6amj7ui, vnvib, kpgz, yvd, ac82h, hedzsm, dsgh, 0dr7, ugr, jz2echy, 7rqq, zwu, avgg, bfevm, \