[gst-devel] vl4+alsa => theora => icecast

Sun Dec 17 07:50:05 CET 2006

>From: "alejo d" <alejoduque at gmail.com>
>To: "René Stadler" 
><mail at renestadler.de>,gstreamer-devel at lists.sourceforge.net
>Subject: Re: [gst-devel] vl4+alsa => theora => icecast
>Date: Sun, 17 Dec 2006 05:17:09 +0100
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>
>hej rene, thanks a lot for your explanation, its basically "my" first
>pipeline, it comes from some wiki+google+irc so no wonder i had so many
>mis-pasted bits...anyway im still stuck, i've tried what you suggested and
>got a segfault:
>
>gst-launch-0.10 v4lsrc device=/dev/video0 ! ffmpegcolorspace ! videoscale !
>video/x-raw-yuv,width=320,height=240 ! theoraenc bitrate=80 ! oggmux
>name=mux !  shout2send ip=hackitectura.net port=8000 password=XXXXX
>streamname=http://son0p.tv description= 
><http://son0p.tvdescription=>"alej00d
>live transmission" mount=son0p.ogg  alsasrc ! audioconvert ! audioresample 
>!
>audio/x-raw-float,width=32,rate=22050,channels=2 ! vorbisenc ! queue ! mux.
>
>Setting pipeline to PAUSED ...
>Pipeline is live and does not need PREROLL ...
>Setting pipeline to PLAYING ...
>New clock: audioclock0
>WARNING: Element "shout2send0" warns: gstbasesink.c(1935):
>gst_base_sink_chain_unlocked (): /pipeline0/shout2send0:
>Received buffer without a new-segment. Assuming timestamps start from 0.
>
>any other thing i should try to avoid the trap?

Try setting the sync property of shout2send  to FALSE

Pavan.

>
>thanks again,
>/a
>
>
>On 12/17/06, René Stadler <mail at renestadler.de> wrote:
>>
>>Am Sonntag, den 17.12.2006, 02:44 +0100 schrieb alejo d:
>> > im having problems getting a video stream with audio using
>> > gst-launch-0.10.
>> > video goes out well, but when i try to get audio from alsa i get a:
>> >
>> > ERROR: from element /pipeline0/alsasrc0: Internal data flow error.
>> > Additional debug info:
>> > gstbasesrc.c(1614): gst_base_src_loop (): /pipeline0/alsasrc0:
>> >
>> > the pipeline im trying is:
>> >
>> > 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=XXXXX streamname=http://son0p.tv description="alej00d live
>> > transmission" mount=son0p.ogg  alsasrc !
>> > audio/x-raw-int,width=16,depth=16,rate=44100,channels=2 ! audioconvert
>> > mux.
>>
>>There are several things wrong with this pipeline:
>>
>>- The order of the filtered video caps and the colorspace converter
>>should be swapped.
>>
>>- Same thing for audio: Put the converter before the capsfilter.
>>
>>- The audioconverter is not linked to the muxer, you are missing the "!"
>>between "audioconvert" and "mux.".
>>
>>- oggmux does not accept raw audio.
>>
>>Try something like this (completely untested):
>>
>>gst-launch-0.10 v4lsrc device=/dev/video0 ! ffmpegcolorspace !
>>videoscale ! video/x-raw-yuv,width=320,height=240 ! theoraenc
>>bitrate=80 ! oggmux name=mux ! shout2send ip=son0p.tv port=8000
>>password=XXXXX streamname=http://son0p.tv description="alej00d live
>>transmission" mount=son0p.ogg  alsasrc ! audioconvert ! audioresample !
>>audio/x-raw-float,width=32,rate=44100,channels=2 ! vorbisenc ! mux.
>>
>>If you use a different audio encoder, don't forget to adjust the audio
>>caps if it uses a different input format.
>>
>>Regards,
>>   René Stadler
>>
>>

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