[gst-devel] QT Demux with strange ouput ES data

[Stefan Kost]

Daniel James Laird schrieb:
> Thanks for the feedback, Any ideas as to why the qtdemux does not output Elementary Streams?  The mpegdemux does as does the AVI demux and the mkv demux.

Its a design decission of the format.

Stefan
> 
> On a similar note I am trying to get asfdemux to do something useful.  I cannot get this to output to a file that plays back either.  Does this not output ES either?
> 
> Cheers
> Dan
> 
> -----Original Message-----
> From: Michael Smith [mailto:msmith at xiph.org] 
> Sent: 2009 Feb 10 16:50
> To: Discussion of the development of GStreamer
> Subject: Re: [gst-devel] QT Demux with strange ouput ES data
> 
> On Tue, Feb 10, 2009 at 2:58 AM, Daniel James Laird
> <daniel.j.laird at nxp.com> wrote:
>> Hi,
>>
>> I am trying to use the qtdemux to demux a ".mov" file that I have. I am using the qtdemux and then I put the output into my onboard decoder.  However it is failing to find start codes in the data.
>> I checked by running qtdemux on my PC (FC10) by running the following:
>> gst-launch filesrc location=term.mov ! qtdemux name=demux  demux.audio_00 ! queue ! fakesink   demux.video_00 ! queue ! filesink location=gstreamer.h264
>>
> 
> qtdemux doesn't output an H.264 elementary stream, which is where
> you're having problems.
> 
> Additional headers needed to initialise your decoder will be in the
> "codec_info" attribute in the caps. Depending on how your decoder is
> structured, perhaps you can supply this directly, or perhaps you need
> to rewrite the stream using that data to be a raw elementary stream.
> 
> Mike
> 
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