[gst-devel] Convert mp4 to mpeg2 transport stream using qtdemux & mpegtsmux

[Raymond Tam]

Something is still not right with the pipeline. 

When I use the pipeline, it exits immediately complaining not finding the "mux":

[root at BB /]# gst-launch filesrc location=input_video.mp4 ! qtdemux name=demux demux.video_00 ! queue ! mpegtsmux name=mux ! filesink location=output_video.mpg demux.audio_00 ! queue ! mux
WARNING: erroneous pipeline: no element "mux"
[root at BB /]#

Any idea?

Thanks,
Raymond


-----Original Message-----
Date: Sun, 15 Mar 2009 14:25:16 +0100
From: Edward Hervey <bilboed at gmail.com>
Subject: Re: [gst-devel] Convert mp4 to mpeg2 transport stream using
	qtdemux & mpegtsmux
To: Discussion of the development of GStreamer
	<gstreamer-devel at lists.sourceforge.net>
Message-ID: <1237123516.5357.2.camel at putamadre>
Content-Type: text/plain

On Sat, 2009-03-14 at 15:38 -0700, Raymond Tam wrote:
> Thanks Edward. But it still doesn't quite work.
> 
> If I do this (with properties added):
> 
>     gst-launch filesrc location=input_video.mp4 ! qtdemux name=demux
>  demux.video_00 ! queue ! mpegtsmux ! filesink
>  location=output_video.mpg demux.audio_00 ! queue ! mpegtsmux

  There was a mistake in the launch-line, the muxer wasn't used by name.
it should be:

gst-launch filesrc location=input_video.mp4 ! qtdemux name=demux
demux.video_00 ! queue ! mpegtsmux name=mux ! filesink
location=output_video.mpg demux.audio_00 ! queue ! mux.

   Edward

> > then the output file contains audio only.
> > 
> > 
> > As an experiment, I then try this pipeline:
> > 
> > gst-launch filesrc location=input_video.mp4 ! qtdemux name=demux demux.video_00 ! mpegtsmux m2ts-mode=FALSE ! filesink location=output_video.mpg
> > 
> > and the output file contains video only. Using VLC player, I can playback this output file without problem, but of course there's no audio.
> > 
> > 
> > Can someone please tell me what would be the right pipeline to construct in order to properly perform the conversion?
> > 
> > Thanks in advance.
> > 
> > -Raymond