stuck pipeline

[Chuck Crisler]

First question - do you know that the input file is valid? I ask because it
seems to be one that you provided. Can you play it with any other programs
(VLC, mplayer)?

Second question - how many frames (about) does it successfully play? Only 1?

Third - have you tried cranking up the logging? export
GST_DEBUG=qtdemux:4,ffdec_h264:3,mpegaudioparse:3

Since you have queues in both branches, if one gets stuck it shouldn't
effect the other. I don't think that the h264parse is really needed, though
it shouldn't hurt either.

On Mon, Feb 18, 2013 at 10:05 AM, Gary Thomas <gary at mlbassoc.com> wrote:

> I'm trying to write a pipeline which is equivalent to 'playbin2'
> to display an MP4 file (H.264+MP3) on my X based display.  I'm doing
> this to provide finer control over the result, e.g. choice of H.264
> decoder, etc.
>
> I tried this pipeline:
>   gst-launch -v filesrc location=/dcim/Camera/2013-02-**18_12-35-40.mp4 !
> qtdemux name=demux \
>     demux. ! queue ! h264parse ! ffdec_h264 ! ffmpegcolorspace !
> autovideosink \
>     demux. ! queue ! mpegaudioparse ! ffdec_mp3 ! audioconvert ! pulsesink
>
> Which starts out happy - it brings up a window with the image, but then
> it just gets stuck.  There is no indication or error why.
>
> I then tried the [arguably] simpler pipeline and it also gets stuck:
>   gst-launch -v filesrc location=/dcim/Camera/2013-02-**18_12-35-40.mp4 !
> qtdemux name=demux \
>     demux. ! queue ! h264parse ! filesink location=/tmp/junk.h264 \
>     demux. ! queue ! mpegaudioparse ! filesink location=/tmp/junk.wav
>
> Any ideas why this is happening?  Where should I look?
>
> Thanks
>
> --
> ------------------------------**------------------------------
> Gary Thomas                 |  Consulting for the
> MLB Associates              |    Embedded world
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