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November 27, 2020 15:59
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11m36s PowerPoint presentation -> .mp4 and then compressing in FFMPEG: | |
Size | Vcodec | CRF | Preset | Wall time | User time | Size | |
1080p | h264 | 23 | normal | 5m | 33m | 87M | |
1080p | libx265 | 28 | normal | 20m | 33m | 40M | |
1080p | h264 | 17 | normal | 1m* | 19m | 188M | |
1080p | libx265 | 23 | normal | 21m | 35m | 47M | |
1080p | h264 | 18 | normal | 1m* | 18m | 166M | |
1080p | h264 | 19 | normal | 1m* | 18m | 145M | |
4k | h264 | 23 | normal | 5m* | 137m | 298M | |
1080p | libx265 | 17 | normal | 21m | 34m | 47M | |
4k | h264 | 28 | normal | 4m* | 90m | 167M | |
4k | h264 | 29 | normal | 4m* | 90m | 145M | |
1080p | libx265 | 11 | normal | 19m* | 32m | 45M | |
4K | libx265 | 28 | veryslow | 118m* | - | 142M # | |
Computed on Intel Core i5-8350U @ 1.7GHz (8 threads) | |
* Computed on 128 AMD Epyc 7702 @ 2.00GHz (256 threads) | |
All were visually OK for me, but others reported problems for entries marked with #. |
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