gecko-dev/modules
Chris Pearce d7d3abb576 Bug 1367950 - Only throttle download of src=url video if the download is 'fast' on desktop. r=jwwang
Our canplaythrough logic is opaque to the users, so I expect that our recent
change to throttle when we hit the readahead limit would be confusing to users;
those on a slow connection would want their media to prebuffer, and not expect
the download to stop part way through.  They would think that Firefox had
stalled at an arbitrary point for some unknown reason, i.e., they'd think
Firefox was broken. So I think we're better to instead only throttle if the
network is good enough that the user probably doesn't worry about the download
not keeping up with playback.

We should restore the previous behaviour on mobile of throttling when the
download reached the readaheadd limit regardless of canplaythrough or network
speed, as the calculus is different on mobile; the user may also be concerned
about battery life, or hitting their data cap. And often the faster the
cellular network is, the more expensive data on it is.

So this patch changes us to throttle when we reach the readahead limit only if
the network is fast, where fast is defined as being able to stream at twice the
rate estimated to be required to playback without stalling.

It also adds a pref to revert to the old behaviour of not considering the
network speed, which we enable on mobile to restore it to its previous
behaviour.

MozReview-Commit-ID: KLIGaQZV6dX

--HG--
extra : rebase_source : c2e0c6be3158fa661be49d1267d976af43aff6d7
2017-05-26 13:55:48 +12:00
..
brotli Bug 1355671 - Build the brotli command line tool as a host program. r=gps 2017-04-07 17:02:54 +09:00
fdlibm Bug 1350355 - fdlibm should provide definition for u_int32_t and u_int64_t. r=arai 2017-03-27 03:33:34 -07:00
freetype2 Bug 1358023: (2/2) Build freetype2 by using moz.build; r=glandium 2017-05-22 12:02:14 +08:00
libbz2 Bug 1345618 - add BUG_COMPONENT to modules/* files. r=jfkthame,mcmanus,rstrong 2017-03-09 05:33:31 -05:00
libjar Backout of 7f28c1084c47 (bug 1319111) for security checks breakage, r=me 2017-05-25 18:16:02 +02:00
libmar Bug 1345618 - add BUG_COMPONENT to modules/* files. r=jfkthame,mcmanus,rstrong 2017-03-09 05:33:31 -05:00
libpref Bug 1367950 - Only throttle download of src=url video if the download is 'fast' on desktop. r=jwwang 2017-05-26 13:55:48 +12:00
woff2 Bug 1353990 - Stop exporting brotli headers. r=gps 2017-04-06 13:44:47 +09:00
xz-embedded Bug 1345618 - add BUG_COMPONENT to modules/* files. r=jfkthame,mcmanus,rstrong 2017-03-09 05:33:31 -05:00
zlib Bug 1345618 - add BUG_COMPONENT to modules/* files. r=jfkthame,mcmanus,rstrong 2017-03-09 05:33:31 -05:00
moz.build Bug 1345618 - add BUG_COMPONENT to modules/* files. r=jfkthame,mcmanus,rstrong 2017-03-09 05:33:31 -05:00