How to create mxf file from series of j2k files

[Miloš Selečéni]

Hi, I'm tying to create single mxf file with 4 audio tracks using mxfmux
element in 1.7.9 gstreamer version. I'm able to create it from
videotestsrc.

./gst-launch-1.0 videotestsrc num-buffers=1200 !
video/x-raw,framerate=25/1,width=1280,height=720,format=I420 ! cmptoj2kenc
! mxfmux name=mux ! filesink location=/Users/milos/data/out.mxf
audiotestsrc num-buffers=1200 wave=sine ! audioconvert !
audio/x-raw,rate=48000,channels=2 ! mux. audiotestsrc num-buffers=1200
wave=square ! audio/x-raw,rate=48000,channels=2 ! mux.

1. But when I try to create it from multifilesrc it faild. I think that the
problem is that buffers are missing dts, pts, clock or something like that.
Am I right ? I also tried  to mux them into mj2 file but the result was
same.

./gst-launch-1.0 --gst-debug=3,mxfmux:5  multifilesrc
location=/Users/milos/data/mxf/test/New_%05d.j2k ! mxfmux name=mux  !
filesink location=/Users/milos/data/out.mxf

The error message:

basesrc gstbasesrc.c:2948:void gst_base_src_loop(GstPad *):<multifilesrc0>
error: Internal data flow error.

basesrc gstbasesrc.c:2948:void gst_base_src_loop(GstPad *):<multifilesrc0>
error: streaming task paused, reason error (-5)

2. I also tried to decode encode the j2k, pipeline runs but after few
frames it fails

/gst-launch-1.0 --gst-debug=3,mxfmux:5  multifilesrc
location=/Users/milos/data/mxf/test/New_%05d.j2k ! cmptoj2kdec
colorspace=yuv ! cmptoj2kenc ! mxfmux name=mux  ! filesink
location=/Users/milos/data/out.mxf

The error message:

mxfmux mxfmux.c:457:gst_mxf_mux_create_metadata:<mux> Creating MXF metadata

mxfmux mxfmux.c:815:gst_mxf_mux_create_metadata:<mux> Invalid edit rate

So my question is how to create, mxf from j2k files ? I thing that the
problem is with time and framerate but I don't know how to solve it. thx



-- 
*Miloš Selečéni*
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