I did the test with patched dvgrab now. If I capture from the beginning of tape, same problem. If I play a few seconds, stop, and use dvgrab then, all works flawlessly. There seems being something on beginning of tape confusing mlt. Another thing I noticed is that for the non working clip, ffplay plays flawlessly but writes the following to console:
[mpeg2video @ 0x2b1b8fd8c5b0]ac-tex damaged at 7 48 [mpeg2video @ 0x2b1b8fd8c5b0]Warning MVs not available [mpeg2video @ 0x2b1b8fd8c5b0]concealing 1800 DC, 1800 AC, 1800 MV errors with dd if=w001.m2t of=zz1.m2t bs=1024 skip=1 the problem can be fixed. zz1.m2t works flawlessly. If you like to experiment with the nonworking capture, I have put it online at http://www.luxmemories.lu/examples/m2t/kdenlive/w001.m2t I think it is not very high priority to have this fixed as there are simple workarounds. Another thing I have noticed is that dvgrab segfaults when aborting using ctrl-c. I don't know if this is dvgrab's fault or if it is related to the patch, the camera is even being stopped correctly before segfaulting. David Arendt wrote: > Hi, > > I noticed that for your testing you used the m2t clips from vasst. I > just want to let you know that I am the producer of these clips. As I > always like supporting open source software I give you the permission to > use this clips for demo material for kdenlive. This is only the case for > the PAL clips, the NTSC clips are from another person. > > Concerning the crash, I tried latest cvs version of ffmpeg with same > result. I tried the mallard.m2t file and it worked flawlessly. The > mallard.m2t was not captured from tape initially but cut out from a big > m2t file using a windows utility named hdtvtompeg2. The files I used for > testing where whole tape captures. I tried cutting a clip of 10 seconds > from the beginning of a file, here inigo did not work correctly. On a > clip from 10 seconds from the middle of the file, inigo works flawlessly > and so does kdenlive. There seems to be something add the beginning of > the files confusing mlt. The tapes have been captured one with cineform > connecthd and with mpg1394 grab. Until now I did not try using dvgrab > with your patch. Will try this this evening and report my findings back. > I will also try starting capture in middle of tape to see if the > confusing data is coming from starting capture or from beginning of > tape. The camcorder the files have been captured from is a Sony HDR-FX1E. > > Many thanks for this wonderfull NLE. I am really surprised by preview > and rendering speed. Continue like that. Also is there any possibilty to > make a donation for you ? > > Bye, > David Arendt > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Kdenlive-devel mailing list > Kdenlive-devel at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/kdenlive-devel >
