FLAC is for the live stream only, there is no lossless catchup.

-- 
Owen Smith <owen.sm...@cantab.net>
Cambridge, UK

> On 6 Aug 2017, at 10:02, <d.l...@surrey.ac.uk> <d.l...@surrey.ac.uk> wrote:
> 
> " R3 Proms 2017 output is available in lossless format in iPlayer for 30 days"
> 
> I know how to get 320kbit/s using gip, but how do you get the FLAC lossless 
> stream using gip?
> 
> Thanks
> 
> David
> 
> -----Original Message-----
> From: get_iplayer [mailto:get_iplayer-boun...@lists.infradead.org] On Behalf 
> Of Paul Thornett
> Sent: 06 August 2017 04:15
> To: get_iplayer@lists.infradead.org
> Subject: Re: Playing BBC R3 FLAC files recorded by nightly VLC
> 
> I don't understand why anyone would choose to use VLC to record the BBC 
> streams. VLC is clunky, difficult to get working and arcane. Its interface is 
> really awful.
> 
> Simply download Audacity (which is free), and use its record button when your 
> stream starts. The only trickiness is at the end when you don't save the 
> audio output, instead you export it to a file of your choice. Audacity 
> exports my files as WAV, but you can as easily get it to use FLAC if you 
> prefer.
> 
> And I assume you know that you don't have to record the concert live, as all 
> R3 Proms 2017 output is available in lossless format in iPlayer for 30 days.
> Regards,
> 
> Paul Thornett
> 
> 
>> On 6 August 2017 at 02:30, RS <richard...@zoho.com> wrote:
>> A few days ago Vangelis kindly told us how to record the BBC R3 FLAC 
>> streams using a recent nightly build of VLC.  Has anyone been able to 
>> play the recordings other than through a software player such as VLC?
>> 
>> I can play a recording with the nightly build of VLC.  The speakers on 
>> my PC are adequate, but not suitable for listening to music, so it 
>> defeats the object if I can't play the recordings on anything else.
>> 
>> If I try to play it with VLC v2.2.6 (Umbrella) there is silence.  The 
>> Statistics tab shows the same number of lost buffers as decoded blocks 
>> and 0 played buffers.  The SanDisk Clip Jam claims to be able to play 
>> FLAC, although there is a warning on the web site that the v1.12 
>> firmware is needed.  It plays the Hallelujah.flac test file from The 
>> Sixteen (and it used to play it with the v1.10 firmware) but it will 
>> not play the BBC FLAC recording.  It displays, "Unsupported file format".
>> 
>> It is in an OGG container.  I tried using ffmpeg v3.2.4 with 
>> -acodec=copy to remultiplex it to a FLAC container.  I got an error 
>> message Could not write header for output file #0 (incorrect codec 
>> parameters ?):
>> Invalid data found when processing input
>> 
>> I then tried converting the FLAC in an OGG container to FLAC in a FLAC 
>> container.  I got a huge number of error messages of the form 
>> [flac@04fdc8a0] Application provided invalid, non monotonically 
>> increasing dts to muxer in stream 0:  122872320 >= 122867712 I thought 
>> something had gone wrong so I stopped it.  I then noticed the output 
>> file size was not zero, but about 5MByte.  I discovered I could play 
>> it and it was about 42s long.  I then let the conversion run to completion.
>> I got a final error message
>> Error while decoding stream #0:0: Invalid argument followed by the 
>> usual size, time, bit rate and speed indications.
>> 
>> I found the output file was complete and I could play it in VLC v2.2.6 
>> and the SanDisk Clip Jam.
>> 
>> The command I used for the conversion was ffmpeg -i=<infile>.ogg 
>> -f=flac -sample_fmt=s16 <outfile>.flac
>> 
>> 
>> 
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