2017-04-11 22:27 GMT+08:00 Andy Furniss <adf.li...@gmail.com>: > Steven Liu wrote: > >> ffmpeg need a dash demuxer for demux the dash formats base on >> https://github.com/samsamsam-iptvplayer/exteplayer3/blob/mas >> ter/tmp/ffmpeg/patches/3.2.2/000001_add_dash_demux.patch >> >> TODO: 1. support multi bitrate dash >> > > v14 fixed: 1. fix bug: TLS connection was non-properly terminated 2. >> fix bug: No trailing CRLF found in HTTP header >> > > Thanks. > > They are pretty much gone now, though I did see one TLS out of about 3 > hours running (3.84s chunks) > > Another user who is testing the same live stream saw eight > TLS @ 0xae75700" referring to TLS packets of unexpected length. > over a 3 hour run. > > One issue that I guess is not really a bug, but on a live stream you > really need to have your clock either spot on or slow. > > Ok, so maybe I should run ntpd "properly" - though not running it does > offer a workaround of setting clock back a bit (the stream mpd below has > a 10 minute buffer). > > This issue = even if set my clock with ntpd -q only a small amount of > too fast drift will lead to (after a couple of hours) > > [https @ 0x365e580] HTTP error 404 Not Found > [dash @ 0x3657360] Failed to open fragment of playlist 0 > > ntpd -q showed I was 0.2 sec fast at that point - for the purpose of > testing just setting one sec fast will quickly start getting 404s which > are not retried, so break the stream. > > I notice there is a time url in the mpd - but even if that were used > initially vs clock, I still think drift would break things. > > > Here's the .mpd (same as link I gave before - pasting as I suspect it's > geo restricted). >
The result is: you want to say: use the UTCTimeing's value, if it show in mpd file, do i misunderstand you? > > <?xml version="1.0" encoding="UTF-8"?> > <MPD type="dynamic" xmlns="urn:mpeg:dash:schema:mpd:2011" > xmlns:dvb="urn:dvb:dash-extensions:2014-1" profiles="urn:dvb:dash:profile > :dvb-dash:2014,urn:dvb:dash:profile:dvb-dash:isoff-ext-live:2014" > minBufferTime="PT2.034S" maxSegmentDuration="PT3.84S" > timeShiftBufferDepth="PT10M" minimumUpdatePeriod="PT1H" > availabilityStartTime="1970-01-01T00:01:00Z" > publishTime="2017-02-01T15:13:36Z"> > <!-- MPEG DASH ISO BMFF test stream --> > <!-- Lossless audio using FLAC --> > <!-- BBC Research & Development --> > <!-- For more information see http://rdmedia.bbc.co.uk --> > <!-- Email d...@rd.bbc.co.uk --> > <!-- (c) British Broadcasting Corporation 2017. All rights > reserved.--> > <ProgramInformation> > <Title>Radio 3 lossless</Title> > <Source>BBC Research and Development</Source> > <Copyright>British Broadcasting Corporation > 2017</Copyright> > </ProgramInformation> > <UTCTiming schemeIdUri="urn:mpeg:dash:utc:http-xsdate:2014" value=" > http://time.akamai.com/?iso"/> > <Period start="PT0S"> > <AdaptationSet startWithSAP="2" segmentAlignment="true" > id="1" codecs="flac" audioSamplingRate="48000" lang="eng" > mimeType="audio/mp4"> > <AudioChannelConfiguration > schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" > value="2"/> > <Role schemeIdUri="urn:mpeg:dash:role:2011" > value="main"/> > <SegmentTemplate timescale="48000" > duration="184320" media="$RepresentationID$/$Number%06d$.m4s" > initialization="$RepresentationID$/IS.mp4" startNumber="1" > presentationTimeOffset="0"/> > <Representation id="A1" bandwidth="365000"/> > </AdaptationSet> > </Period> > <Metrics metrics="DVBErrors"> > <Reporting schemeIdUri="urn:dvb:dash:reporting:2014" > value="1" dvb:reportingUrl="http://rdmedia.bbc.co.uk/dash/errorreporti > ng/reporterror.php" dvb:probability="50"/> > </Metrics> > </MPD> > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
