[vlc-devel] codec/encoding settings request

Kaarlo Räihä kaarlo.raiha at gmail.com
Wed May 25 16:51:58 CEST 2011

2011/5/25 Mustafa Kuscu <mustafakuscu at gmail.com>

> Hi,
> We are currently using VLC as the mainstream video player for a corporate
> IPTV broadcast in SD, with 9000 users. In general, people are very satisfied
> with the overall system, especially with the CPU utilization being order of
> magnitude lower than the MS counterpart (which makes a lot of people
> delighted here)..
> However, there are a few issues like lipsync, pixellation, and interlace,
> which begin 1-2 hours after the encoder starts. The customer is just
> restarting the encoder (vlc 1.1.7) every time they detect a problem and that
> fixes the issue for some more time. I was wondering if there is a known
> issue with the particular codec they are using.. and if someone could
> recommend a better codec/setting to give a try, that would be definitely
> worth testing.

You can try vcodec=h264 or vcodec=mp2v

but I would guess it isn't a video encoder issue. (so it will happen even
with those vcodecs if my rand() is correct)

> Here are the encoder settings:
> C:\Program Files\VideoLAN\VLC>"C:\Program Files\VideoLAN\VLC\vlc.exe"
> dshow://
>  :dshow-vdev="Osprey-210 Video Device 1" :dshow-adev="Osprey-210 Audio
> Device 1L" :dshow-caching=600 :dshow-vdev= :dshow-adev= :dshow-size=
> :dshow-aspect-ratio=4\:3
>  :dshow-chroma= :dshow-fps=0 :no-dshow-config :no-dshow-tuner
> :dshow-tuner-channel=0 :dshow-tuner-country=0 :dshow-tuner-input=0
> :dshow-video-input=-1
> :dshow-video-output=-1 :dshow-audio-input=-1 :dshow-audio-output=-1
> :dshow-amtuner-mode=1 :dshow-audio-channels=0 :dshow-audio-samplerate=0
> :dshow-audio-bitspersample=0 :dshow-caching=600
> :sout=#transcode{vcodec=mp4v,vb=4000,fps=25,scale=1,acodec=mp3
> ,ab=128,channels=2,samplerate=8000}:rtp{dst=,port=5004,mux=ts,ttl=2}
> Kindest regards,
> --
> Mustafa
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