Video mixer pipeline missing when audio is added

[Richard]

For the sake of others who might find it interesting (and not myself
sending mails for the sake of it) the Zorder in the VideoMixer is
important. I dont know how it thumb-sucks the ordering but being
explicit solved the problems.

gst-launch -e videomixer name=mix sink_0::zorder=1 sink_1::zorder=0 !
ffmpegcolorspace ! videoscale ! video/x-raw-yuv, width=320,height=288
! mpeg2enc quantisation=16 ! mpegtsmux name=mux ! filesink
location=/tmp/a.ts videotestsrc pattern=0 !
video/x-raw-yuv,width=100,height=100,framerate=25/1 ! videoscale !
videobox border-alpha=0 top=0 left=0 ! mix. filesrc
location=BBC1_DVBS.ts ! decodebin2 name=demux ! mix. demux. ! queue !
audioconvert ! lame bitrate=64 ! mux.


Richard

On 13 April 2012 21:56, Richard <tuxbox.guru at gmail.com> wrote:
> Hi All,
>
> Just when I thought I could start coding the next gremlin occurs
>
> gst-launch -e videomixer name=mix ! ffmpegcolorspace ! mpeg2enc !
> mpegtsmux name=mux ! filesink location=/tmp/a.ts videotestsrc
> pattern=1 ! video/x-raw-yuv,width=10,height=10,framerate=20/1 !
> videorate ! videoscale ! videobox border-alpha=0 top=0 left=0 ! mix.
> filesrc location=BBC1_DVBS.ts ! decodebin name=demux ! videoscale !
> video/x-raw-yuv, width=320,height=288 ! videorate ! mix. demux. !
> queue ! audioconvert ! lame bitrate=64 ! mux.
>
> The above is the command that resizes the MPEG.TS stream and
> videomixes SNOW on the top of the picture (this is later to be
> replaced with an image)... and then adds the audio track.
> Theoretically quite simple but in the above command does not show the
> PiP SNOW when the audio track is added. If I remove the audio pipeline
> then PiP works (but obviously without audio)
>
> I dont understand why adding the audio track to the MPEGTSMUX the
> VideoTestSrc pipeline does not work.
>
> Any ideas?
>
> Richard