[gst-devel] mplex issue

[Charles-Henri d'Adhémar]

Hello All !

I am starting to play with gstreamer as a replacement for many tools I
used for a while.
As my first post on this list I would like to thank and congratulate
you all for this amazing software ! I hope this is the right place for
asking end-user/developper questions ...

I have an issue with mplex while trying to extract a video and audio
from a DVD and put them into a single mpeg file, without any
transcoding. Here is the gst-launch pipeline I use :

gst-launch -v dvdreadsrc ! dvddemux name=demuxer demuxer.current_audio
! queue ! mplex name=muxer ! filesink location=test.mpeg
demuxer.current_video ! queue ! muxer.

The pipeline is in preroll status but never goes to playing :

[chicha at grogro Bureau]$ LC_ALL=C gst-launch -v dvdreadsrc ! dvddemux
name=demuxer demuxer.current_audio ! queue ! mplex name=muxer !
filesink location=test.mpeg demuxer.current_video ! queue ! muxer.

(gst-launch-0.10:2396): GLib-WARNING **: g_set_prgname() called multiple times
Setting pipeline to PAUSED ...
libdvdread: Using libdvdcss version 1.2.10 for DVD access

libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000157
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x000001d9
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x0001350e
libdvdread: Elapsed time 0
......
libdvdread: Found 12 VTS's
libdvdread: Elapsed time 0
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstDVDDemux:demuxer.GstPad:current_video: caps
= video/mpeg, mpegversion=(int)2, systemstream=(boolean)false
/GstPipeline:pipeline0/GstDVDDemux:demuxer.GstPad:current_audio: caps
= audio/x-ac3
/GstPipeline:pipeline0/GstDVDDemux:demuxer.GstPad:current_subpicture:
caps = video/x-dvd-subpicture
/GstPipeline:pipeline0/GstDVDDemux:demuxer.GstPad:sink: caps =
video/mpeg, mpegversion=(int)2, systemstream=(boolean)true
/GstPipeline:pipeline0/GstQueue:queue1.GstPad:sink: caps = video/mpeg,
mpegversion=(int)2, systemstream=(boolean)false
/GstPipeline:pipeline0/GstQueue:queue1.GstPad:src: caps = video/mpeg,
mpegversion=(int)2, systemstream=(boolean)false
/GstPipeline:pipeline0/GstMplex:muxer.GstPad:src: caps = video/mpeg,
systemstream=(boolean)true
/GstPipeline:pipeline0/GstMplex:muxer.GstPad:video_0: caps =
video/mpeg, mpegversion=(int)2, systemstream=(boolean)false
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:sink: caps = audio/x-ac3
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:src: caps = audio/x-ac3
/GstPipeline:pipeline0/GstMplex:muxer.GstPad:audio_0: caps = audio/x-ac3

What I do not understand is that when I extract just the video or just
the audio it works. Also playing the dvd sound + video to a pulsesink
+ xvimagesink works like a charm.

I am sure I am missing something, but what ?
Thank you very much for your help !

Cheers,
Chicha