experiment:encoding-quality

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experiment:encoding-quality [2021/04/15 11:35] – [Reference content] ischluffexperiment:encoding-quality [2026/07/26 22:17] (current) – external edit 127.0.0.1
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-====== Encoding-Quality-Testing ======+###### Encoding-Quality-Testing
 Created with the [[https://github.com/voc/voctoquality|voctoquality]] repo. Created with the [[https://github.com/voc/voctoquality|voctoquality]] repo.
  
-===== Reference content =====+##### Reference content
 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/).
  
-The specific sources are found in https://github.com/voc/voctoquality/blob/master/data/profiles/voc_streaming.py+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. All the reference content is converted to 8bit 1080p25.
  
-===== Software =====+##### Software
   * ffmpeg-4.1.4 (same as in buster)   * ffmpeg-4.1.4 (same as in buster)
   * libvmaf-1.3.15   * libvmaf-1.3.15
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   * libx264-2:0.155.2917+git0a84d98-2 (bullseye)   * libx264-2:0.155.2917+git0a84d98-2 (bullseye)
  
-===== Testing VAAPI vs. software encoding for live streaming =====+##### Testing VAAPI vs. software encoding for live streaming
 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.
  
-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. The codecs are tested with bitrates from 1Mbit/s to 5.2Mbit/s.
  
-==== Graphs ====+#### Graphs
 {{ :experiment:streaming_rates.pdf |}} {{ :experiment:streaming_rates.pdf |}}
 {{ :experiment:streaming_refs.pdf |}} {{ :experiment:streaming_refs.pdf |}}
 {{ :experiment:streaming_speeds.pdf |}} {{ :experiment:streaming_speeds.pdf |}}
  
-==== Comments ====+#### Comments
  
 ^ Platform                                         ^ Label        ^ Hardware Codecs    ^ Comments                                                                                                                                                        ^ ^ Platform                                         ^ Label        ^ Hardware Codecs    ^ Comments                                                                                                                                                        ^
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-==== Finding a Tracker VP9 Profile ==== +#### Finding a Tracker VP9 Profile 
-=== HD-Profile ===+### HD-Profile
  
 Goals:  Goals: 
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 ``` ```
  
-=== SD-Profile ===+### SD-Profile
   * worse parallelization and therefore speed than HD-profile   * worse parallelization and therefore speed than HD-profile
   * worse rate-control than HD-profile (doesn't reach target bitrate)   * worse rate-control than HD-profile (doesn't reach target bitrate)
  • experiment/encoding-quality.1618486553.txt.gz
  • Last modified: 2021/04/15 11:35
  • by ischluff