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<DIV><FONT size=2 face=Arial>{The "(again!)" part refers to a previous iPlayer
bug </FONT></DIV>
<DIV><FONT size=2 face=Arial>I filed in the list back in September
2016.<BR><BR><A
href="https://mail.mozilla.org/pipermail/nightly-testers/2016-September/004141.html">https://mail.mozilla.org/pipermail/nightly-testers/2016-September/004141.html</A></FONT><FONT
size=2 face=Arial> }<BR><BR>OS: Windows Vista SP2 32bit, with all MS
updates <BR>(including Platform Update Supplement for Vista, i.e. KB KB2117917).
<BR>Thus, the system has native H264/AAC decoding support <BR>(via WMF/MSE) for
HTML5 MP4 video files.<BR><BR>BBC iPlayer TV HTML5 Requirements<BR><BR>1. As far
as this bug is concerned, the <BR>following test page can be used:
<BR><BR>http://www.bbc.co.uk/html5<BR><BR>The embedded Media Player is either
the <BR>Flash one (AdobeHDS streams) or the <BR>HTML5 one (MPEG-DASH streams),
<BR>depending on OS, browser version and <BR>browser plugin configuration.
<BR>This test page is not geo-blocked (but separate <BR>streams exist for UK and
non-UK clients), <BR>nor does it require a UK TV licence.<BR>The browser
behaviour in this test page <BR>is expected to be identical to the behaviour
<BR>exhibited on the main BBC iPlayer TV site:
<BR><BR>http://www.bbc.co.uk/iplayer<BR><BR>which is UK-only, requires a valid
UK TV licence <BR>and (pretty soon) will also require a BBCid
(login).<BR><BR>STR<BR><BR>1. Use Firefox Developer Editon 52.0a2 <BR>(any build
of 52.0a2).<BR>2. about:addons => Plugins => <BR>Shockwave Flash =>
Never Activate<BR>(if Flash NPAPI is installed, else disregard)<BR><BR>Though
not strictly required, also<BR><BR>about:addons => Plugins =>
<BR>Primetime Content Decryption Module => Never Activate<BR><BR>so we're
sure H264/AAC decoding is <BR>delegated to system codecs...<BR>3. Visit
about:support to verify e10s is ON<BR><BR>Multiprocess Windows 1/1
(Enabled by user)<BR><BR>If it's OFF, visit about:preferences#general =>
Startup <BR>=> tick "Enable multi-process Firefox Developer Editon"<BR><BR>4.
Restart DevEd-52.0a2<BR>5. Visit </FONT><A
href="http://www.bbc.co.uk/html5"><FONT size=2
face=Arial>http://www.bbc.co.uk/html5</FONT></A><BR></DIV>
<DIV><FONT size=2 face=Arial>"We think this page has embedded the HTML5 player,
as seen below:" <BR>should appear above embedded player.<BR><BR>6. Click the
black/pink "PLAY" square; <BR>Expected behaviour: Video clip should start
playing<BR>Actual behaviour: Playback fails, player shows <BR></FONT><FONT
size=2 face=Arial><A
href="http://i.imgur.com/5Qo03rg.jpg">http://i.imgur.com/5Qo03rg.jpg</A><BR></FONT><FONT
size=2 face=Arial><BR>Additional Info: <BR><BR>1. Browser Console reports
something along this line: <BR><BR>Media resource
blob:http://emp.bbc.co.uk/e1b07582-61d5-46c4-96a2-95e8d632c4f2 could not be
decoded. 1 iframe.html<BR><BR>2.This bug is only present when e10s is turned
ON:<BR><BR>Flash Player + e10sON = OK<BR>Flash Player + e10sOFF = OK
<BR><BR>HTML5 Player + e10sON = NW (this bug)<BR>HTML5 Player + e10sOFF =
OK<BR><BR>DISSECTION<BR><BR>Firefox Developer Edition<BR><BR>Last good:
DevEd-51.0a2.win32[20161114004005], LAST of the 51.0a2 cycle<BR>First bad:
DevEd-52.0a2.win32[20161114043455], FIRST of the 52.0a2 cycle<BR><BR>REGRESSION
RANGE
<BR>https://hg.mozilla.org/releases/mozilla-aurora/pushloghtml?fromchange=263190e20543&tochange=7e29173b1641<BR><BR>So,
the bad cs came upstream from the 52.0a1 codebase. <BR>Fortunately, I can still
run 52.0a1 on Vista, so here it goes: <BR><BR>m-c (52.0a1) repo: <BR><BR>Last
good:
Nightly-52.0a1.en-US.win32[20161109030210]<BR>https://hg.mozilla.org/mozilla-central/rev/783356f1476eafd8e4d6fa5f3919cf6167e84f8d<BR>First
bad:
Nightly-52.0a1.en-US.win32[20161110030211]<BR>https://hg.mozilla.org/mozilla-central/rev/336759fad4621dfcd0a3293840edbed67018accd<BR><BR>REGRESSION
RANGE
<BR>https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=783356f1476e&tochange=336759fad462<BR><BR>m-c
(52.0a1) hourly win32 (tinderbox builds) repo:<BR><BR>Last good:
Nightly-52.0a1.en-US.t-b.m-c.win32[1478705843=20161109073723]<BR>https://hg.mozilla.org/mozilla-central/rev/6b7f1acfbb4b3fab041817a7dfbe39743416181f<BR>First
bad:
Nightly-52.0a1.en-US.t-b.m-c.win32[1478705964=20161109073924]<BR>https://hg.mozilla.org/mozilla-central/rev/336759fad4621dfcd0a3293840edbed67018accd<BR><BR>REGRESSION
RANGE
<BR>https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=6b7f1acfbb4b&tochange=336759fad462<BR><BR>m-i
(52.0a1) repo: <BR><BR>Last good:
Nightly-52.0a1.en-US.t-b.m-i.win32[1478659139=20161108183859]<BR>https://hg.mozilla.org/integration/mozilla-inbound/rev/c6d5c06685a248fd8eaa01d695e4509392db9209<BR>First
bad:
Nightly-52.0a1.en-US.t-b.m-c.win32[1478659822=20161108185022]<BR>https://hg.mozilla.org/integration/mozilla-inbound/rev/d76e0d2be865f40a4bf86fddd1d5430f74b7b5bf<BR><BR>REGRESSION
RANGE<BR>https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=c6d5c06685a2&tochange=d76e0d2be865<BR><BR>CULPRIT
CHANGESETS (either
one/both):<BR><BR>https://hg.mozilla.org/integration/mozilla-inbound/rev/95ab9f05b980<BR>https://bugzilla.mozilla.org/show_bug.cgi?id=1315510<BR><BR>https://hg.mozilla.org/integration/mozilla-inbound/rev/d76e0d2be865<BR>https://bugzilla.mozilla.org/show_bug.cgi?id=1315144<BR><BR>Tracking
is also requested, because BBC iPlayer is a very <BR>popular media platform (in
the UK and globally)<BR><BR>Firefox 50.1.0: unaffected<BR>Firefox 51.0b12:
unaffected<BR>Firefox 52.0a2: affected<BR>Firefox 53.0a1 : Can't test, because
of OS deprecation; <BR>last build of 53.0a1 that can run on Vista and still has
WMF <BR>support is 20161218030213; this is "affected"<BR><BR>Since v52.0 would
be the last major version (in the ESR) <BR>channel) that would support Vista, I
have a vested interest <BR>in this bug getting fixed as soon as
possible.<BR><BR>I don't possess the necessary Bugzilla skills to file this
properly, <BR>but I think I shall post a comment on bug 1315144 to alert <BR>the
devs about this; they should know how to proceed further...
<BR><BR>==================================<BR>A personal note: <BR><BR>This is
probably gonna be one of the last bugs I file; <BR>I am currently full of
resentment and bitterness against <BR>Mozilla, who decided to copycat Google and
put Vista <BR>on the same sinking boat as the much older XP. <BR>I have been
following Firefox's development in the <BR>Nightly Channel (in this Vista SP2
old laptop) since <BR>v23.0a1 (buildID=20130424030917 still on disk..);
<BR>countless daily threads read over at the mozillazine <BR>Firefox Builds
forum, also countless Bugzilla bugs read, <BR>so it now kind of pains me to not
be able to continue...<BR><BR>Installing Win7 on this old laptop or switching
over to Linux is, <BR>at least for now, out of the picture... But the Mozilla
Foundation <BR>said, among other things, that they could not afford <BR>(them
being a multinational enterprise) the heavy cost <BR>of maintaining Vista
support any longer; they know better; <BR>but, likewise, I can't currently
afford the "heavy cost" of <BR>buying a new laptop (probably with Win10 that I
dislike...) <BR>to continue Nightly testing...<BR>So, to recap, 2 more weeks of
52.0a2 testing, one <BR>cycle of 52.0b testing and several months frozen on
<BR>52.0ESR (with no testing there...) - and we Vista users <BR>should be
thankful for that, too, because we were not <BR>cut-off altogether... Such is
life...</FONT></DIV>
<DIV><FONT size=2
face=Arial>==================================<BR></FONT></DIV></BODY></HTML>