[FFmpeg-user] Trying to get the last frame from a live FLV stream

[Eugene M]

Hi everyone

I'm trying to get a single frame from given live stream:

ffmpeg -i
http://brightcove03-f.akamaihd.net/valgbodmandag1378107345_1_300k@80362-vframes
1 -y frame.jpg

What I expect here is the very last frame from the stream. But when I run
ffmpeg with this options repeatedly several times per second I receive the
same frame which changes (roughly) every 10 seconds.

The stream itself plays smoothly and I can save it as an animated GIF or as
a sequence of separate frames (when using something like frame_%09d.jpg).
In that case there are no any lagging frames.

I suppose that the "lagging frame" is some kind os keyframe or something
like that. By the way, there is a line in program
output<http://pastebin.com/YHBcsAr7>that says "[flv @
00000000027da340] Stream discovered after head already
parsed". Is it connected somehow with my problem?

I'm doing this because I need separate frames saved as still(!) GIFs, so I
am running ffmpeg reepatedly as described above.

Any ideas on how I can receive really the last up-to-date frame from a live
stream?

Thanks in advance.

-- 
Eugene M.