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--- experiment:encoding-quality [2020/06/13 16:28] – ischluff
+++ experiment:encoding-quality [2021/04/15 13:36] (current) – ischluff
@@ Line 1: / Line 1: @@
 ====== Encoding-Quality-Testing ======
-Created with the [[https://bitbucket.fem.tu-ilmenau.de/projects/BROADCAST/repos/vmaf-docker/browse|vmaf-docker]] repo.
+Created with the [[https://github.com/voc/voctoquality|voctoquality]] repo.
 ===== Reference content =====
 Reference content is either our own (https://media.ccc.de) or from Xiph (https://media.xiph.org/video/derf/).
-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/sources.json
 All the reference content is converted to 8bit 1080p25.
@@ Line 18: / Line 18: @@
 The codec settings are the ones currently in use by the C3VOC for live streaming.
-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.
 The codecs are tested with bitrates from 1Mbit/s to 5.2Mbit/s.
 ==== Graphs ====
-{{ :experiment:vaapi_rates.pdf |}}
+{{ :experiment:streaming_rates.pdf |}}
-{{ :experiment:vaapi_streaming.pdf |}}
+{{ :experiment:streaming_refs.pdf |}}
-{{ :experiment:vaapi_speeds.pdf |}}
+{{ :experiment:streaming_speeds.pdf |}}
 ==== Comments ====
-{{tablelayout?colwidth="183px,103px,147px,735px"}}
-^ 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                                                                                                    |
+^ 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)     | 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                                                                                  |
+==== Finding a Tracker VP9 Profile ====
+=== HD-Profile ===
+Goals:
+  * improve quality over previous libvpx (VP8) profile
+  * don't increase encoding time too much
+  * smaller size but similar quality as x264 master
+Notes:
+  * realtime + speed <= 3: slower and worse than quality good
+```
+-i $ref
+-c:v libvpx-vp9
+-quality:v good
+-crf:v 30
+-b:v 6000k
+-maxrate:v 8000k
+-minrate:v 2000k
+-row-mt 1
+-frame-parallel:v 1 -tile-columns:v 2
+```
+=== SD-Profile ===
+  * worse parallelization and therefore speed than HD-profile
+  * worse rate-control than HD-profile (doesn't reach target bitrate)
+  * bufsize doesn't change anything
+  * no threads parallelizes best
+  * frame-parallel doesn't work (frame too small?)
+  * bitrate with crf is more like maxrate