ffenc_msmpeg4v2: failed to encode buffer

[padam]

Hi, reffering to THIS topic i created this pipe:

gst-launch gnlfilesource name=video caps="video/x-raw-yuv,width=320,height=240" location=file:///D:\\source.avi start=0 duration=23000000000 media-start=1188000000 media-duration=23000000000 ! identity single-segment=true ! progressreport update-freq=1 ! ffmpegcolorspace ! ffenc_msmpeg4v2 bitrate=350000 ! avimux name=mux ! filesink location=D:\\destination.avi gnlfilesource name=audio caps="audio/x-raw-int,rate=16000,channels=1" location=file:///D:\\source.avi start=0 duration=23000000000 media-start=1188000000 media-duration=23000000000 ! identity single-segment=true ! audioconvert ! lamemp3enc bitrate=32 ! mux.

When i launch this sometimes, on the same file, i get that errors:

0:00:11.781250000  2512   00B5F320 ERROR                 ffmpeg .:0:: Error, Inv
alid timestamp=0, last=0
0:00:11.781250000  2512   00B5F320 ERROR                 ffmpeg gstffmpegenc.c:7
23:gst_ffmpegenc_chain_video:<ffenc_msmpeg4v20> ffenc_msmpeg4v2: failed to encode buffer

I have read that i should add to my pipe single-segment=true, but i already have it in my pipe, so where is the problem?

And another problem is that i would like to set new properties for destination.avi, but gstreamer seems to ignoring all my properties... Why is that?

thanks for help