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| = Engineering = | | = Engineering = |
| Block Playback [status: <span style="color:#0f0">Green</span>] | | Block Playback [status: <span>Coming soon</span>] |
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| Current Goals:
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| * Ship disabling video decoders for ads
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| * Silent, looping videos where user doesn't really care the exact point
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| Next Milestone:
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| == Milestones ==
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| === Optimizations ===
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| * [https://bugzil.la/1282710 Bug 1282710 - Suspend and resume foreground video decoders according to visibility events]
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| ** done.
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| * [https://bugzil.la/1282012 Bug 1282012 - Seek to nearest keyframe when resuming videos with no audio]
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| ** [https://bugzil.la/1294657 Bug 1294657 - Seek to nearest keyframe when resuming videos with no audio - with audio track but muted]
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| *** pending, excluded from phase 1.
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| ** [https://bugzil.la/1294658 Bug 1294658 - Seek to nearest keyframe when resuming videos with no audio - with audio track but might be silent]
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| *** pending, excluded from phase 1.
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| ** [https://bugzil.la/1294656 Bug 1294656 - Seek to nearest keyframe when resuming videos with no audio - no audio track]
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| *** done.
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| * [https://bugzil.la/1274919 Bug 1274919 - Resume suspended video decoders on tab mouse hover.]
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| ** under review.
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| * [https://bugzil.la/1284389 Bug 1284389 - Don't suspend video elements captured via mozCaptureStream()]
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| ** WIP.
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| * [https://bugzil.la/1295921 Bug 1295921 - Don't suspend video decoder for elements as sources to drawImage() and createImageBitmap()]
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| ** WIP.
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| * Resume video when keyboard is used to change tags - Needs Bug
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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.
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| ** Need to hook into the tab navigation/change code and alert media elements, like bug 1274919
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| === Telemetry ===
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| * '''Amount of time hidden''' - measure of user value (Bucket results by resolution; i.e. are 720p videos hidden less often?)
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| ** [http://bugzil.la/1285419 Bug 1285419 - Telemetry to support background video decoder suspend: Hidden play time]
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| ** [https://mzl.la/2c0493i VIDEO_HIDDEN_PLAY_TIME_MS]
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| ** [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]
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| ** [https://mzl.la/2c04hQl VIDEO_HIDDEN_PLAY_TIME_PERCENTAGE]
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| ** [http://bugzil.la/1293145 Bug 1293145 - Telemetry to support background video decoder suspend: Percentage video-decode-suspended/total play time]
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| ** [https://mzl.la/2c07M9s VIDEO_INFERRED_DECODE_SUSPEND_PERCENTAGE]
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| * '''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?)
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| ** [https://bugzil.la/1294349 Bug 1294349 - Telemetry to support background video decoder suspend: Recovery time from video-decode-suspended]
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| ** [https://mzl.la/2c947Iv VIDEO_SUSPEND_RECOVERY_TIME_MS]
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| * '''Key frame spacing''' - distribution allows better tuning
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| ** [http://bugzil.la/1289668 Bug 1289668 - Telemetry to support background video decoder suspend: Inter-keyframe timings]
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| ** [https://mzl.la/2c04Utr VIDEO_INTER_KEYFRAME_AVERAGE_MS]
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| ** [https://mzl.la/2c956bN VIDEO_INTER_KEYFRAME_AVERAGE_PERCENTAGE]
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| === Mochitests ===
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| * [https://bugzil.la/1284177 Bug 1284177 - Add tests for video suspend in background]
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| ** done
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| * [https://bugzil.la/1294358 Bug 1294358 - Add test for suspended videos still fire 'ended' event]
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| ** done
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| * [https://bugzil.la/1295844 Bug 1295844 - Test suspended videos with webm files]
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| ** done
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| =Team= | | =Team= |
Overview
Block Playback
Video/Audio will be blocked if a new tab been opened but never bring to front.
Meta Bug
Other Resources
Planning
Goals
- Help users to reduce device resource usage (CPU & Memory)
- Finish tasks across videos
- No impact on current user flow
Schedule
Product Milestones
Engineering
Block Playback [status: Coming soon]
Team
Product owner:
Eng: Alastor, Daniel, Gerald, JW, Kaku,
Program Management: Blake, Josh
UX: Mark, Morpheus
QA: SoftVision and William
Communications
IRC:
Email:
VidyoRoom: