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| experiment:encoding-quality [2021/01/25 00:50] – [Table] ischluff | experiment:encoding-quality [2021/04/15 13:36] – [Testing VAAPI vs. software encoding for live streaming] ischluff |
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| Reference content is either our own (https://media.ccc.de) or from Xiph (https://media.xiph.org/video/derf/). | Reference content is either our own (https://media.ccc.de) or from Xiph (https://media.xiph.org/video/derf/). |
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| The specific sources are found in https://github.com/voc/vmaf-docker/blob/master/data/sources.json | The specific sources are found in https://github.com/voc/voctoquality/blob/master/data/profiles/voc_streaming.py |
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| All the reference content is converted to 8bit 1080p25. | All the reference content is converted to 8bit 1080p25. |
| The codec settings are the ones currently in use by the C3VOC for live streaming. | The codec settings are the ones currently in use by the C3VOC for live streaming. |
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| See https://github.com/voc/vmaf-docker/blob/master/data/libquality/profiles/voc_streaming.py for the specific ffmpeg options. | See https://github.com/voc/voctoquality/blob/master/data/profiles/voc_streaming.py for the specific ffmpeg options. |
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| The codecs are tested with bitrates from 1Mbit/s to 5.2Mbit/s. | The codecs are tested with bitrates from 1Mbit/s to 5.2Mbit/s. |
| ==== Comments ==== | ==== Comments ==== |
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| ^ Platform ^ Label ^ Hardware Codecs ^ Comments ^ | ^ Platform ^ Label ^ Hardware Codecs ^ Comments ^ |
| ^ Intel 6th Gen (i7-6600U) | skylake | h.264, h.265 | h.264 scores better than our VP9 and x264 streaming settings and is pretty fast\\ h.265 even scores a little bit higher but is considerably slower | | ^ Intel 6th Gen (i7-6600U) | skylake | h.264, h.265 | h.264 scores better than our VP9 and x264 streaming settings and is pretty fast\\ h.265 even scores a little bit higher but is considerably slower | |
| ^ Intel 8th Gen (i7-8665U) | whiskeylake | h.264, h.265, VP9 | h.264 and h.265 results are identical to skylake\\ VP9 scores worse than H.264 and has broken rate-control for <2mbit/s | | ^ Intel 8th Gen (i7-8665U) | whiskeylake | h.264, h.265, VP9 | h.264 and h.265 results worse but faster than skylake, have to check whats up with that\\ VP9 scores worse than H.264 and has broken rate-control for <2mbit/s | |
| ^ AMD Navi (RX 5700 XT) + Ryzen 2nd Gen (R5-2600) | navi10 | h.264, h.265 | h.264 is worse than x264 on veryfast...\\ h.265 produces 1920x1088 output? | | ^ AMD Navi (RX 5700 XT) + Ryzen 2nd Gen (R5-2600) | navi10 | h.264, h.265 | h.264 is worse than x264 on veryfast...\\ h.265 produces 1920x1088 output? | |
| ^ Nvidia Turing (RTX2080 Super) | turing | h.264, h.265 | nvidia-driver-460, cuda-toolkit 9.1.85\\ best h.265 encode, h.264 behind Intel | | ^ Nvidia Turing (RTX2080 Super) | turing | h.264, h.265 | nvidia-driver-460, cuda-toolkit 9.1.85\\ best h.265 encode, h.264 behind Intel | |
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