Compatibility/Telemetry: Difference between revisions
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==== Video ==== | ==== Video ==== | ||
* requestFullScreen vs requestFullscreen. See https://bugzilla.mozilla.org/show_bug.cgi?id=743198#c5 | * requestFullScreen vs requestFullscreen. See https://bugzilla.mozilla.org/show_bug.cgi?id=743198#c5 | ||
* Ads before video and transition to video | * Ads before video and transition to video | ||
* EME required | * EME required | ||
* List of video providers (stats for understanding if we need to focus our contacts actions toward some specific people) | * List of video providers (stats for understanding if we need to focus our contacts actions toward some specific people) | ||
* List of JS libraries used for video players | * List of JS libraries used for video players | ||
* Flash-only video | * Flash-only video | ||
* Media formats (ogg, mp4, h264, m3u8/HLS) | |||
* Media MIME types | * Media MIME types | ||
** HTMLMediaElement.canPlayType() | ** HTMLMediaElement.canPlayType() | ||
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* Hardware or software decoders | * Hardware or software decoders | ||
* Playing videos concurrently | * Playing videos concurrently | ||
* Audio speaker configuration e.g. mono, stereo, 5.1 | * Audio speaker configuration e.g. mono, stereo, 5.1 | ||
* | * H264 | ||
** H.264 AVC [http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC#Profiles profile info] (profile/flags/level) | |||
** FRext in SPS | |||
===== Related information ===== | ===== Related information ===== | ||
h264 rec: http://www.itu.int/rec/T-REC-H.264-201402-I/en | h264 rec: http://www.itu.int/rec/T-REC-H.264-201402-I/en | ||
Revision as of 18:09, 22 December 2014
Measuring web compatibility
This page tracks the telemetry measurements that the Web Compat team is tracking. See Telemetry for more information.
Bug 1109958 will serve as the meta tracking bug for all telemetry probes.
Possible telemetry probes
CSS
- `display: table` with `max-width: 100%` on children.
HTTP
- WAP (WML or XHTMLMP) content sent to Fennec users
- `Server:` name
- Redirection sequences
- Wrong mimetypes for images
- Wrong mimetypes for JSON
JS/DOM
- (When Possible) identify the js lib used against a DB of the latest versions of JS libs. (to understand the use of legacy code)
- Identify, count how many times `navigator.userAgent` is used on the Web and a couple of other related thing.
- WebKitCSSMatrix usage See https://bugzilla.mozilla.org/show_bug.cgi?id=717722
Video
- requestFullScreen vs requestFullscreen. See https://bugzilla.mozilla.org/show_bug.cgi?id=743198#c5
- Ads before video and transition to video
- EME required
- List of video providers (stats for understanding if we need to focus our contacts actions toward some specific people)
- List of JS libraries used for video players
- Flash-only video
- Media formats (ogg, mp4, h264, m3u8/HLS)
- Media MIME types
- HTMLMediaElement.canPlayType()
- MediaSource.isSupportedType()
- MediaSource.addSourceBuffer(DOMString type)
- Video dimensions
- Compressed video sample sizes
- Frame drops
- Hardware or software decoders
- Playing videos concurrently
- Audio speaker configuration e.g. mono, stereo, 5.1
- H264
- H.264 AVC profile info (profile/flags/level)
- FRext in SPS