[gst-devel] gstreamer: streaming : audio and video synchronization

[alejo d]

On 4/2/07, Stefan Kost <ensonic at hora-obscura.de> wrote:
>
> hi,
>
> put all elements into one pipeline.



ha! what a great answer, full of insight.

i have tried also and got lost with audio since it didnt work, my naive
pipeline is this one for video:

*gst-launch-0.10 v4lsrc device=/dev/video0 !
"video/x-raw-yuv",width=320,height=240 ! ffmpegcolorspace ! theoraenc
bitrate=80 ! oggmux name=mux ! shout2send ip=son0p.tv port=8000
password=pppppp mount=son0p.ogg { mux. }


*if someone could add the audio pipeline part for alsacards (it didnt work
for me) might that be a solution for Matthieu.

2cents.
/a



Stefan

>
> Quoting Matthieu LAURENT <matthieu.laurent at purplelabs.com>:
>
> > Hi,
> >
> > I did not get any answer to my question.
> > Do you have any idea to help me?
> > regards
> >
> > Matthieu
> >
> > Matthieu LAURENT wrote:
> >> Hi,
> >>
> >> I know gstreamer a little bit (already done a local audio/video player
> >> for our target) and I am studying the possibility to use it for our
> >> streaming solution.
> >> Could you explain me how the synchronisation between audio and video is
> >> done?
> >> In fact, there 2 independant pipes (so 2 lives sources)
> >> udp | rtp | depayloader-audio | audio-decoder | audio-sink
> >> and
> >> udp | rtp | depayloader-video | video-decoder | video-sink
> >>
> >> Imagine the video-pipe  goes to state rebuffering. How does the
> >> audio-pipe know  it has to stop  playing audio? How will  it know it
> can
> >> restart playing (once enough video has been bufferized)?
> >>
> >> regards
> >> Matthieu LAURENT
> >>
> >>
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> >
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