- From: Harald Alvestrand via GitHub <sysbot+gh@w3.org>
- Date: Tue, 09 Aug 2016 13:32:35 +0000
- To: public-webrtc@w3.org
alvestrand has just created a new issue for https://github.com/w3c/webrtc-stats: == Add QP statistics to video tracks == >From Sami Kalliomäki <sakal@google.com>: What we need is a way to get average QP over some period of time. I don't think adding this to the receiver side is needed by us but maybe it should be added as well. I think the approach of adding a sum of QP would be a good idea. It probably should be added to the RTCMediaStreamTrackStats structure. Maybe something like this: qpSum of type unsigned long Only valid for video. QP (quantization parameter) describes how much spatial detail is included a frame. Low value corresponds with good quality. The range of the value per frame is defined by the codec being used. This parameter represents the sum of all QPs for framesDecoded on remote streams and framesSent on local streams. The average QP has been implemented before as a goog stat but it never landed. The relevant CLs are here: https://codereview.webrtc.org/1264693003/ https://codereview.webrtc.org/1420963005/ Please view or discuss this issue at https://github.com/w3c/webrtc-stats/issues/57 using your GitHub account
Received on Tuesday, 9 August 2016 13:32:45 UTC