[FFmpeg-user] Resuming broken capture of mpeg-ts stream, or capture from certain position?

Roger Pack rogerdpack2 at gmail.com
Tue Aug 7 23:35:04 CEST 2012

> I'm trying to capture the mpeg-ts streams of the olympics on NBC's site
> using ffmpeg.  It works pretty well but is slow, and after a few hours, the
> stream link becomes invalid, cutting off capture.  I need to either find a
> way to resume the download (the stream will probably have a different link)
> or to start capturing from where it got cut off.

How are you capturing? (full command line and console output). What is slow?

> I've tried using the command ‘-ss position (input/output)’ before the -i and
> putting the position to where it left off but it just leaves the command
> prompt waiting.

It does nothing?

> I'm thinking it's either streaming the beginning but not
> recording or something else is the problem.
> The NBC Olympics site uses Youtube videos and the link to the actual stream
> (a .m3u8 file) seems to change after a while.  Unfortunately, this happens
> before I can finish capturing a stream.

Without knowing what's going on, I'd guess that they're timing out the
videos, so you'd need to re-parse and get new links [?]

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