[gst-devel] Still on mux-demux (was: question about converting a 3gp file)

[Angelo Difino]

Hi Steven and all,
sorry for my late reply. I've tried to run the scenario as you
suggested, trying to keep it as easy as possible:

filesrc location=orig.avi ! avidemux name=demux avimux name=mux !
filesink location=dest.avi demux.video_00 ! queue ! mux.video_00
demux.audio_00 ! queue ! mux.audio_00
(open an AVI, demux, queue, mux again and write on disk - i've also
tried with different mux/demux and with encoded data... but the result
is always the same:
the chain reach the PLAYING state, but no data are flowing in it...
all the elements seems correctly instantiated and linked...)

some steps from my test (in attach all the logs):
1) from a c program that build the same chain and from java bridge test case
0:00:00.219000000  4872 003647D0 INFO 
            GST_PADS :0:: linked filesrc:src and
avidemux:sink, successful
0:00:00.222000000  4872 003647D0 INFO 
            GST_PADS :0:: linked mux:src and
filesink:sink, successful
0:00:00.295000000  4872 040D46A0 INFO 
            GST_PADS :0:: linked avidemux:video_00
and queue1:sink, successful
0:00:00.297000000  4872 040D46A0 INFO 
            GST_PADS :0:: linked queue1:src and
mux:video_00, successful
0:00:00.299000000  4872 040D46A0 INFO 
            GST_PADS :0:: linked avidemux:audio_00
and queue2:sink, successful
0:00:00.300000000  4872 040D46A0 INFO 
            GST_PADS :0:: linked queue2:src and
mux:audio_00, successful

2) from command line
0:00:01.537000000 $B"+[333m 4928←[00m 00848F80 ←[32;01mINFO ←[00m ←[00;01;31m
    GST_STATES :0::<pipeline0>←[00m completed state change to PLAYING

I really think that the chain (somewhere) is not running correctly. is
there any problem using the queue on audio and video track?

In attach i include all the logs and test program. Since i've seen
that also someone else notice this problem, i'll be very glad
to be addressed to the problem... i've some time to spend on gstreamer
and i can try to investingate (if we spot a bug).

(i'll be almost everyday on irc channel or be available here by
email... and i work on win32 system)

Best regards,
Angelo

> Terry,
>
> please try my examples. There is no need for two filesrc elements. The %02d was
> wrong in your example.
>
> Stefan
>
>
> Terry Leung wrote:
> > Hi,
> >
> > I have successfully make a pipeline to support this
> >
> > gst-launch -m ffmux_3gp name=mux ! filesink
> > location=/home/video/jill3.3gp {filesrc location=/home/video/jill.3gp
> > ! qtdemux name=demuxer ! ffdec_h263 ! ffenc_h263 bitrate=45000
> > rtp-payload-size=500 gop-size=3 me-method=4 ! queue }! mux.video_0
> > {filesrc location=/home/video/jill.3gp ! qtdemux name=demuxer2  !
> > queue }! mux.audio_0
> >
> > however, as I did use the filesrc two times, I am not sure if the
> > video and the audio are synchronize with each other. If I try to use
> > the same filesrc and demux, it doesnt work.
> > anyone got any idea on how to do that?
> >
> > On 9/16/07, Stefan Kost <ensonic at hora-obscura.de> wrote:
>> >> Hi,
>> >>
>> >> the pipeline mostly looks good. Can you try "demuxer.audio_%d" instead of
>> >> "demuxer.audio_%02d". Could you maybe also try this variant:
>> >>
>> >> gst-launch -m filesrc location=/jill.3gp ! qtdemux name=demuxer \
>> >> ffmux_3gp name=mux ! filesink location=/jill3.3gp \
>> >> demuxer.video_%d ! ffdec_h263 ! ffenc_h263 bitrate=50000
rtp-payload-size=500
>> >> gop-size=3 me-method=4 ! mux.video_%d \
>> >> demuxer.audio_%d !  mux.audio_%d
>> >>
>> >> If none works please file a bug?
>> >>
>> >> Stefan
>> >>
>> >> Terry Leung wrote:
>>> >>> Hi all,
>>> >>>
>>> >>> I am going to write a program to convert a 3gp file into a suitable
>>> >>> format(eg lower bitrate). I try to test the pipeline by using
>>> >>> gst-launch
>>> >>>
>>> >>> The pipeline I use here(The file is econded in h263 and amrnb):
>>> >>>
>>> >>> gst-launch -m filesrc location=/jill.3gp ! qtdemux name=demuxer !
>>> >>> ffdec_h263 ! ffenc_h263 bitrate=50000 rtp-payload-size=500 gop-size=3
>>> >>> me-method=4 ! ffmux_3gp name=mux ! filesink location=/jill3.3gp
>>> >>> demuxer.audio_%02d !  mux.audio_%d
>>> >>>
>>> >>> However, the converted file doesnt contain the sound(The video part
>>> >>> plays smoothly on quicktime)
>>> >>>
>>> >>> Any one got any idea on how to configure the pipeline in order to
>>> >>> obtain the correct result?
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