On Sun, 29 Jun 2008 14:10:45 +0200, U.G. Cinelerra <[EMAIL PROTECTED]> wrote:
> Hi, > > sorry for asking, but how good is the support for AVCHD video editing in > cinelerra just now? Pretty absent. The handling of h.264 is buggy, to put it nicely. > Nevertheless, after inserting a samsung mp4/aac file into cinelerra, > after a few seconds it crashes with some kind of > weired h.264 errors and a simple 'aborted' at the end (which is > somewhere in the middle of the file...) ...snip... > lt-cinelerra: h264.c:4016: decode_ref_pic_marking: Assertion > `h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count' failed. > Aborted > > How can I prevent this? I don't wanna convert the whole HD footage to > thousands of png-frames to be able to edit it. Nor would I. Decoding PNGs is too slow for HD, and your hard disk can hardly move that much data in real time. Even a HD JPEG sequence is pretty heavy, unless you have awesome hardware. > Are there any patches or a way I can 'simply' remultiplex the > av file before feeding it into cinelerra to prevent it? I doubt this is just a muxing problem. My suggested workaround would be recoding into MPEG2 at the same resolution, which Cinelerra supports quite well. You still need a hefty computer, though. When HDV arrived a few years ago, Cinelerra happened to support it. Not quite so with AVCHD. AVCHD is even less ideal for editing than long-GOP HDV (1080i HDV), so Cinelerra should have some user friendly proxy editing support. -- Herman Robak _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
