[FFmpeg-user] ATSC TS live transcode on DL360 G4?

Tom Evans tevans.uk at googlemail.com
Fri Feb 1 17:47:24 CET 2013

On Fri, Feb 1, 2013 at 2:20 PM, Subscriptions <subscriptions at znet.ca> wrote:
> Hello again,
> It simply looks that 2 double-core Xeon at 3.4Ghz (HP DL 360) can not
> transcode mpeg2 ts live stream coming at ~20 Mb/s to h264. Even with 'preset
> ultrafast' the load goes above 4 and the buffer overruns. The minimal
> processor that is able to do this up to now is a single Phenom 2 X6 Black at
> 3.4 Ghz, and it sometimes gets with load ~5 on it's six cores.
> Thanks, George

Hi George

You were given the advice to record the stream to a file, and then
transcode from that file to a second file. This takes all network
interaction out of the way, and would show if your CPU cannot handle
it, which your current example does not.

If you ask for and get advice, and then don't follow it up, people
won't follow up on your issue.

Personally, my Core 2 E6300 (2 cores, 2.8GHz) can decode 1080p blu ray
and re-encode to 720p/crf 23 at around 35-40 fps on veryfast, so I'd
be surprised that twice as many cores, running at a faster speed,



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