[gst-devel] Pipeline to convert a transport stream into an AVI file

[Zhao Liang-E3423C]

more debug log needed, especially the caps of mpegtsdemux srcpads, if these srcpad caps are not compatible with avimux, these elements can not be connected into one pipeline.
 
Zhao Liang

________________________________

From: Julien Pauty [mailto:julien.pauty at gmail.com] 
Sent: Friday, November 28, 2008 6:48 AM
To: Discussion of the development of GStreamer
Subject: [gst-devel] Pipeline to convert a transport stream into an AVI file


Hello,

I'm trying to convert a file containing transport stream into a regular AVI file. Since it's not possible (yet) to seek into a transport stream, I would like to convert it into a format where seeking is supported. My idea was to extract the video and audio streams and then to store them into an AVI container. 

I made this pipeline: 
gst-launch avimux name=mux ! filesink location=/tmp/test2.avi  filesrc location=257.ts ! mpegtsdemux name=demux demux.video_0078 ! mux.video_00  demux.audio_0082 !  mux.audio_00 

This does not work and exits with the following errors: 

Définition du pipeline à PAUSED...
Le pipeline est en phase de PREROLL...
ERREUR : de l'élément /GstPipeline:pipeline0/GstFileSrc:filesrc0 : Internal data stream error.
Information de débogage supplémentaire :
gstbasesrc.c(2234): gst_base_src_loop (): /GstPipeline:pipeline0/GstFileSrc:filesrc0:
streaming task paused, reason not-negotiated (-4)
ERROR : pipeline refuse to go into setup phase
Définition du pipeline à NULL...
Libération du pipeline (FREE)...

(I translated the main info, rest is in french). 

I do have a pipeline that convert the file: 

gst-launch avimux name=mux ! filesink location=/tmp/test2.avi  filesrc location=257.ts ! mpegtsdemux name=demux demux.video_0078 !  queue  ! mpeg2dec ! ffmpegcolorspace ! mpeg2enc ! queue ! mux.video_00  demux.audio_0082 ! queue ! mad ! audioconvert ! lame ! queue ! mux.audio_00 

This one involves decoding and recoding video, which is useless since the formats are the same. I would like to just extract streams and store them into a different container. 

Is it possible to make such pipeline ? Using avi is not a requirement. I just want to convert the transport stream into a format that supports seeking well. 

Thanks for your help,

Julien 


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