Re: MPEG-2 Capture?
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From: Aleksandr M. <n6...@mi...> - 2001-02-06 08:25:22
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At 1:03 AM -0500 on 2/6/01, Dan Dennedy commanded the electrons to create a missive titled "Re: MPEG-2 Capture?": |Aleksandr Milewski wrote: |> |> Has anyone done any work on MPEG-2 capture from 1394? | |Not that we are aware of. Most us are capturing DV and uncompressed |video. Uncompressed? From what source? |> I admit that I haven't built linux1394 yet, so if this is as simple as |> |> cat /dev/video1394 >> file.mpeg | |Not that simple until someone brings video1394 up to video4linux |compliancy. However, you can certainly call a few ioctls and dump the |iso packets to disk. If it is that braindead, then maybe it will be as |simple as that, but I would not be so optimistic. I'm reasonably sure it is that braindead. According to one source, each iso packet contains either one or two 188-byte Mpeg2 TS packets, "with header and timestamp." Sounds braindead to me. In any case... At 1:18 AM -0500 2/6/01, Dan Dennedy wrote: |Also, you could just use libraw's iso read functions. It is more |universal, popular and simple. You can view the source of dvgrab to see |how to use it. Access dvgrab at http://www.schirmacher.de/arne/dvgrab/. This is the right thing to do. I'll look at the source, but I have a suspicion that commenting out large pieces of dvgrap might be the way to go. Of course, the reason I asked this on the user list is that I'm far more user than developer, so if someone would like to lead the way... -Zandr -- --------------------------------------------------------------------- Aleksandr Milewski N6MOD n6...@mi... http://www.milewski.org/ |