Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
FFMPEG libx264 encodes 2 min video, CRFs 18 to 27, all presets except placebo, encode times and file sizes
CRF Preset Time (Secs) Size (MB)
18 ultrafast 13.91 175.13
18 superfast 24.39 149.13
18 veryfast 36.39 87.97
18 faster 55.89 94.50
18 fast 79.71 97.76
18 medium 97.80 94.15
18 slow 145.07 91.47
18 slower 262.72 91.55
18 veryslow 503.44 84.07
19 ultrafast 13.56 156.96
19 superfast 23.76 129.59
19 veryfast 35.39 78.43
19 faster 54.17 85.00
19 fast 77.37 88.05
19 medium 96.42 84.67
19 slow 140.83 82.34
19 slower 258.93 82.37
19 veryslow 494.20 75.71
20 ultrafast 13.92 140.22
20 superfast 23.72 113.06
20 veryfast 34.87 70.08
20 faster 52.70 76.90
20 fast 74.48 79.70
20 medium 91.13 76.44
20 slow 133.42 74.34
20 slower 242.14 74.33
20 veryslow 466.91 68.39
21 ultrafast 12.96 124.70
21 superfast 22.92 99.02
21 veryfast 33.86 62.59
21 faster 52.07 69.69
21 fast 71.62 72.34
21 medium 87.73 69.17
21 slow 126.81 67.28
21 slower 231.73 67.17
21 veryslow 451.01 61.84
22 ultrafast 12.60 110.86
22 superfast 22.59 87.08
22 veryfast 32.85 55.88
22 faster 49.93 63.16
22 fast 69.17 65.72
22 medium 84.16 62.75
22 slow 119.61 60.95
22 slower 222.66 60.75
22 veryslow 434.34 55.93
23 ultrafast 12.52 98.01
23 superfast 22.42 76.96
23 veryfast 32.21 49.85
23 faster 48.73 57.20
23 fast 67.05 59.72
23 medium 80.79 56.93
23 slow 114.03 55.18
23 slower 211.56 54.89
23 veryslow 463.01 50.47
24 ultrafast 14.66 86.31
24 superfast 22.74 68.35
24 veryfast 33.73 44.48
24 faster 47.58 51.78
24 fast 66.29 54.24
24 medium 78.82 51.61
24 slow 111.81 49.89
24 slower 202.22 49.51
24 veryslow 409.20 45.44
25 ultrafast 12.37 77.11
25 superfast 21.91 60.88
25 veryfast 31.23 39.66
25 faster 47.12 46.85
25 fast 63.12 49.16
25 medium 75.03 46.71
25 slow 103.95 45.05
25 slower 195.15 44.61
25 veryslow 390.24 40.86
26 ultrafast 11.91 67.75
26 superfast 22.57 54.27
26 veryfast 30.75 35.36
26 faster 46.22 42.38
26 fast 61.20 44.42
26 medium 72.75 42.19
26 slow 100.21 40.59
26 slower 189.01 40.14
26 veryslow 381.85 36.74
27 ultrafast 12.04 59.65
27 superfast 21.22 48.31
27 veryfast 29.92 31.57
27 faster 44.40 38.37
27 fast 58.47 40.12
27 medium 69.30 38.07
27 slow 94.30 36.53
27 slower 179.93 36.15
27 veryslow 367.45 33.08
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.