Strange mismatch of pid and radio program
Budgie
ajebay at errichel.co.uk
Tue Dec 17 08:25:23 EST 2013
On 17/12/13 03:01, Vangelis forthnet wrote:
> On Mon Dec 16 16:08:04 GMT 2013, general wrote:
>
>> the program (Composer of the week) can be streamed correctly in web
>> browser
>> http://www.bbc.co.uk/programmes/b03kp831
>> but when I use the pid "b03kp831" to download, get_iplayer
>> always downloads the next program of that day (Radio 3 Live Concert)
>> ....
>> Any help please?
>
> Hello general,
> the (new) iPlayerRadio page
>
> http://www.bbc.co.uk/programmes/b03kp831
>
> uses what is known as "mediaselector5" parser to fetch
> the rtmp audio streams for your radio show (which I believe is
> "Composer of the Week - Iceland - 2. The Geyser Erupts") and
> does so correctly - for pid=b03kp831, the playlist URL
>
> http://www.bbc.co.uk/iplayer/playlist/b03kp831
>
> yields:
> item kind="radioProgramme" duration="3600" identifier="b03kp7xl"
>
> b03kp7xl is the (mediator) identifier, also known as vPID.
> The "mediaselector5" parser produces different results depending
> on the originating IP address, e.g. for my Greek IP
>
> http://open.live.bbc.co.uk/mediaselector/5/select/version/2.0/mediaset/pc/vpid/b03kp7xl
>
>
> gives me the following rtmp stream details:
>
> <media bitrate="48" encoding="aac" expires="2013-12-17T13:02:00+00:00"
> kind="audio" service="iplayer_intl_stream_aac_rtmp_concrete"
> type="audio/mp4"><connection application="a5999/e1"
> authExpires="2013-12-17T02:29:22+00:00" authExpiresOffset="5841"
> authString="as=adobe-hmac-sha256&av=1&te=connect&mp=radio3/secure_auth/international/RBN2_radio_3_-_tuesday_1200_b03kp7xl_2013_12_15_10_41_50.mp4&et=1387248721&fmta-token=539b24fe1ce3b715a52114ba0b767576fbc1199be0d3d0b666c9ece04a9066e1"
> identifier="mp4:radio3/secure_auth/international/RBN2_radio_3_-_tuesday_1200_b03kp7xl_2013_12_15_10_41_50.mp4"
> priority="9" protocol="rtmp" server="bbcodspdns.fcod.llnwd.net"
> supplier="limelight"/>
>
> Notice that the playpath (filename)
> "RBN2_radio_3_-_tuesday_1200_b03kp7xl_2013_12_15_10_41_50.mp4" points to
> the correct 1h show.
>
> On the other hand, the (old) iplayer page
>
> http://www.bbc.co.uk/iplayer/episode/b03kp831/Composer_of_the_Week_Iceland_The_Geyser_Erupts/
>
>
> uses the old "mediaselector4" parser to fetch the audio stream inside
> the Flash Player in your browser, but in this case there appears to be a
> mismatch, as you rightly call it, and in turn streams the wrong audio file;
>
> for the same vPID=b03kp7xl (and for my non-UK IP),
>
> http://www.bbc.co.uk/mediaselector/4/mtis/stream/b03kp7xl
>
> produces the following rtmp stream details:
>
> <media bitrate="48" encoding="aac" expires="2013-12-17T19:32:00+00:00"
> kind="audio" service="iplayer_intl_stream_aac_rtmp_concrete"
> type="audio/mp4"><connection application="a5999/e1"
> authExpires="2013-12-17T02:47:06+00:00"
> authString="as=adobe-hmac-sha256&av=1&te=connect&mp=radio3/secure_auth/international/RBN2_radio_3_-_tuesday_1830_b03kp7xl_2013_12_11_10_50_20.mp4&et=1387249561&fmta-token=61a1c09ba8f7a5ac97cac8bbac03f94e5ac950d85d709aa7debd52b49806e6a3"
> identifier="mp4:radio3/secure_auth/international/RBN2_radio_3_-_tuesday_1830_b03kp7xl_2013_12_11_10_50_20.mp4"
> kind="limelight" priority="9" protocol="rtmp"
> server="bbcodspdns.fcod.llnwd.net" supplier="limelight"/>
>
> The playpath (filename)
> "RBN2_radio_3_-_tuesday_1830_b03kp7xl_2013_12_11_10_50_20.mp4" here
> points to a different recording, which is 2h29min long!
>
> Unfortunately for you, get_iplayer in its guts uses the same
> "mediaselector4" URL to accomplish the downloads,
> so without even trying it myself, I can tell that for pid=b03kp831
> you'll end up with the 150min show you are not after!
> Your predicament is in fact akin to the problem reported back in Aug
> 2013 by Mable Syrup
> and solved by me in this reply:
>
> http://lists.infradead.org/pipermail/get_iplayer/2013-August/004901.html
>
> So far, I have presented you with the long/tech-ish explanation why you
> are facing this issue,
> caused - once again - by a glitch on the beeb's side...
> As for the remedy, it really depends on your set-up (OS) and your level
> of expertise...,
> both of which you have not indicated... you may find the answers inside
> my linked reply
> just above, but sadly time is not on your side; the show is due to
> expire today (Tue, 17 Dec 2013)
> at 19:30 GMT.
> If on Windows, you can use one of the (mostly) payware GUI RTMP
> downloaders to download
> it (as an .flv file) from the working new iPlayerRadio page
>
> http://www.bbc.co.uk/programmes/b03kp831
>
> Unfortunately, the Java based FRD (=free)
>
> http://wordrider.net/freerapid/
>
> also downloads the wrong file...
>
> You can still try a nice free tool called rtmpdumphelper
>
> http://www.nirsoft.net/utils/rtmp_dump_helper.html
>
> which is based on rtmpsrv/rtmpdump to grab the file,
> or just use simply rtmpdump on its own, if you have the
> skills to conjure up a working rtmpdump command for a
> limelight CDN from the details generated by the ms5 URL
> posted earlier in this reply (if in the UK, choose the
> higher quality data under media bitrate="128" encoding="aac";
> this in fact is 320kbps for Radio 3 shows...). I could post a
> working command, but the timestamp (et=) & auth token
> (fmta-token=) are good to go for an hour or so, perhaps a bit more...
> I would also need to find a working UK proxy, too...
>
> If you are comfortable with a code editor, you can temporarily
> patch your local copy of the get_iplayer script to use the ms5
> URL just for this specific problematic radio show, details are
> within my Aug 2013 reply. IF YOU ARE TO GO DOWN THIS ROUTE,
> BACK UP PRIOR TO ANY MODIFICATION AND RESTORE
> AFTERWARDS! - I have found out that the ms5 URL messes up
> TV downloads but I was unable to further investigate, as I am
> perl illiterate :-(
>
> I have briefly run the UK VPN just to test this, and it seems that
> running
>
> get_iplayer --type=radio -i --pid=b03kp831 --modes=flashaac --force
> --tag-podcast-radio
>
> (from a UK IP) with a ms5 patched script begins to download the correct
> file:
>
> INFO: 1 Matching Programmes
> INFO: Checking existence of default version
> INFO: flashaacstd1,flashaaclow1 modes will be tried for version default
> INFO: Trying flashaacstd1 mode to record radio: Composer of the Week -
> Iceland:
> 2. The Geyser Erupts
> INFO: File name prefix =
> Composer_of_the_Week_-_Iceland_2._The_Geyser_Erupts_b03
> kp831_default
> RTMPDump v2.4-81-g2872601
> (c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
> Connecting ...
> INFO: Connected...
> Starting download at: 0.000 kB
> INFO: Metadata:
> INFO: duration 3540.55
> INFO: moovPosition 36.00
> INFO: audiocodecid mp4a
> INFO: aacaot 2.00
> INFO: audiosamplerate 44100.00
> INFO: audiochannels 2.00
> INFO: tags:
> INFO: ┬σalb Composer of the Week - Iceland
> INFO: aART BBC Radio 3
> INFO: ┬σART BBC Radio 3
> INFO: ┬σcmt Donald Macleod hears the 'original' geyser
> in Icel
> and and introduces works by Jon Leifs.
> INFO: cprt British Broadcasting Corporation Copyright
> 2013, a
> ll rights reserved.
> INFO: ┬σgen Podcast
> INFO: ┬σnam Composer of the Week - Iceland 10 12 2013
> INFO: ┬σday 2013
> INFO: trackinfo:
> INFO: length 156138496.00
> INFO: timescale 44100.00
> INFO: language und
> INFO: sampledescription:
> INFO: sampletype mp4a
>
> Hope you get it in time...
>
> Regards,
> Vangelis.
>
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> http://lists.infradead.org/mailman/listinfo/get_iplayer
Hi, just to let the OP know I have Composer of the Week as a regular
download using pvr. I have had no problems, I assume because pvr uses
programme name not pid. Hope this helps.
Budgie
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