Firefox/Shutdown Decoders: Difference between revisions

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Revision as of 09:25, 3 October 2016

1,446 bytes added , 3 October 2016

→‎Optimizations

Joshwalker

Confirmed users

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 ** For example, if it's possible to detect the direction of cycling and videos are within, say, 5 tabs of the current tab, then start decoding again.
 ** Need to hook into the tab navigation/change code and alert media elements, like bug 1274919
+=== Telemetry ===
+* '''Amount of time hidden''' - measure of user value (Bucket results by resolution; i.e. are 720p videos hidden less often?)
+** [http://bugzil.la/1285419 Bug 1285419 - Telemetry to support background video decoder suspend: Hidden play time]
+** [https://mzl.la/2c0493i VIDEO_HIDDEN_PLAY_TIME_MS]
+** [http://bugzil.la/1287987 Bug 1287987 - Telemetry to support background video decoder suspend: Percentage hidden/total play time, keyed by audio presence and height ranges]
+** [https://mzl.la/2c04hQl VIDEO_HIDDEN_PLAY_TIME_PERCENTAGE]
+** [http://bugzil.la/1293145 Bug 1293145 - Telemetry to support background video decoder suspend: Percentage video-decode-suspended/total play time]
+** [https://mzl.la/2c07M9s VIDEO_INFERRED_DECODE_SUSPEND_PERCENTAGE]
+* '''Recovery time''' - measure of user cost (separate for noisy vs silent videos) (Bucket results by resolution; i.e. do 720p videos take longer to recover?)
+** [https://bugzil.la/1294349 Bug 1294349 - Telemetry to support background video decoder suspend: Recovery time from video-decode-suspended]
+** [https://mzl.la/2c947Iv VIDEO_SUSPEND_RECOVERY_TIME_MS]
+* '''Key frame spacing''' - distribution allows better tuning
+** [http://bugzil.la/1289668 Bug 1289668 - Telemetry to support background video decoder suspend: Inter-keyframe timings]
+** [https://mzl.la/2c04Utr VIDEO_INTER_KEYFRAME_AVERAGE_MS]
+** [https://mzl.la/2c956bN VIDEO_INTER_KEYFRAME_AVERAGE_PERCENTAGE]