[gst-devel] Why does my pipeline block on preroll?

[Nathanael D. Noblet]

On 07/21/2010 09:46 AM, wl2776 wrote:
>
> I have the pipeline:
>
> filesrc ! typefind ! mpegpsdemux name=demux multiqueue
> max-size-bytes=2097152 name=mq demux.audio_c0 ! mq.sink0 mq.src0 ! mp3parse
> ! flump3dec ! input-selector ! tee ! audioconvert ! audioresample !
> pulsesink  demux.video_e0 ! mq.sink1 mq.src1 ! mpegvideoparse ! mpeg2dec !
> input-selector ! queue max-size-buffers=3 max-size-bytes=0 max-size-time=0 !
> ffmpegcolorspace ! videoscale ! xvimagesink
>
>
> Here is the dot file:
> http://gstreamer-devel.966125.n4.nabble.com/file/n2297314/player.dot
> player.dot  (30kb), and produced PNG:
> http://gstreamer-devel.966125.n4.nabble.com/file/n2297314/player.png
> player.png  (850kb)
>
> Looks like there is no negotiation between multiqueue and mpegvideoparse.
> Why an it be?
>
> I tried using seek example with this pipeline
> ($GST_PLUGINS_BASE/test/examples/seek/seek.c)
> It begins playing only after seek command.


I am by no means an expert as I just started playing with gstreamer as a 
developer last week, however yesterday I read this:


http://www.gstreamer.net/wiki/FAQ#MypipelinewithmultiplesinksneverreachesthePAUSEDstate.2CwhatamIdoingwrong.3F

Maybe the same/related issue?