FFMpeg problem on large DV files

[EwanG]

Am having the most curious problem with ffmpeg.

Capture all my files through Kino from a Canopus ADVC-100. In general, I can specify a 720x480 size with -hq and -b 4096 options and get a very clean, well synced file to play back using MPlayer.

However, on some of my larger files (usually more than 4 Gig), it seems that ffmpeg will die partway through the file. No error message, it just stops encoding. Doesn't seem to be at the same length or output file size or anything obvious I can figure out.

Have tried using Cinelerra to render out these large files, but even on an AMD Athlon 64-bit chip with 512 megs of RAM it seems to create files that have serious audio sync issues.

Any suggestions?

Thanks,
Ewan

[sk545]

only thing i can remember is that when i had tried to compile mplayer, there was some option in the configure script that you had to pass to enable large file support....try getting mplayer source and do ./configure --help to see what to enable.

But then again, i am just guessing here.

[EwanG]

Recently did do a compile of MPlayer from source, and didn't think to see if it was overlaying the library for av encoding, so I'll give that a look.

Advice from the FFMpeg developer list was to use a raw DV stream, but that seems to be broken in the more current versions in the project CVS.

Of course, if there's anything else folks use on Linux for doing these VirtualDub sorts of things, I'd love to hear about it.

Thanks,
Ewan

[sk545]

closest thing to virtualdub on linux is avidemux. Again, i dunno if that will help you in this situation. Here is a list of programs for conversion:

http://freshmeat.net/browse/127/?orderby=&offset=0

and here:

http://sourceforge.net/softwaremap/trove_list.php?form_cat=127
(just use sort to sort for unix apps)