[FFmpeg-user] Simple webm ffmpeg passthrough unexpectedly use 100% cpu

LANGLOIS Olivier PIS -EXT olivier.pis.langlois at transport.alstom.com
Wed Sep 25 23:24:31 CEST 2013

I have found how to do it:

ffmpeg -re -i trololo.webm -c:v copy http://localhost:8090/feed1.ffm

> -----Original Message-----
> From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-
> bounces at ffmpeg.org] On Behalf Of LANGLOIS Olivier PIS -EXT
> Sent: Wednesday, September 25, 2013 12:04 PM
> To: ffmpeg-user at ffmpeg.org
> Subject: [FFmpeg-user] Simple webm ffmpeg passthrough unexpectedly use
> 100% cpu
> Hi,
> I want to live stream a webm file with ffserver. I have preprocess my file to
> avoid any on the fly transcoding. I obviously failed something as ffmpeg is
> using 100% cpu and the ffserver stream output is stuttering.

> lano1106 at hpmini ~/Videos $ ffmpeg -re -i trololo.webm
> http://localhost:8090/feed1.ffm
> Stream mapping:
>   Stream #0:0 -> #0:0 (vp8 -> libvpx)

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