Problem with transcoding some HD programmes

Jon Davies jon at
Mon May 28 07:50:11 EDT 2012

On 27 May 2012 22:15, Shevek <shevek at> wrote:
> I am having some problems with the transcoding to MP4 of some programmes.
> E.g. The_Great_British_Story_-_A_Peoples_History_1._Britannia
> I got this error from ffmpeg:
> [mp4 @ 044F5700] Application provided invalid, non monotonically
> increasing dts
> to muxer in stream 1: 86800368 >= 86642688

and On 28 May 2012 01:13, Shevek <shevek at> wrote:
> Ignore me, I deleted and re-downloaded and all is well. Must've been a
> corrupt download.

I've seen this from time to time when get_iplayer (I guess technically, when
rtmpdump) fails during the download and resumes.  It seems to duplicate a
few frames, and ffmpeg objects.

Redownloading usually fixes this, though not always since sometimes the
redownload stops and resumes.

Alternatively, just watch the flv file instead, provided your media player
can play it.


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