[FFmpeg-devel] AVCHD framerate/preview problem

Michael Niedermayer michaelni
Tue Dec 30 12:35:14 CET 2008

On Tue, Dec 30, 2008 at 10:19:27AM +0100, Jean-Michel Pour? wrote:
> On Mon, 2008-12-29 at 16:57 +0100, Michael Niedermayer wrote:
> > 
> > I belive there are people who tried 1. and 2. but we have not heared
> > of
> > any of them again, i suspect they all went insane after finding out
> > how
> > timestamps work in H.264
> I switched the state of AVCHD camcorders to unsupported in Kdenlive
> supported database. Example: Canon HG10 and Canon HF11. It is a pitty
> that so much is done around AVCHD and timestamps do not work. I know
> this is probably because Camcorder do not manage timestamps well.
> Is there a way to copy h264 into mpeg-2 I frames only. Even this does
> not produce a workable file. Time is twice as expected.

timestamp interpolation for h.264 in mpeg-ps/ts as described in H.222/264
is not supported. This is not related to what you do with the video,
that is decode or transcode or whatever nor with AVCHD it can affect any
H.264 in mpeg file.

The fix is to read H.222/264, fix the timestamp interpolation around the
h264 AVParser and send us a patch.

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Good people do not need laws to tell them to act responsibly, while bad
people will find a way around the laws. -- Plato
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