Re: [Live-devel] presentationTime and B-Frames

2007-07-02 Thread Ross Finlayson
> > Note that In your original MPEG-2 stream, with B-frames, the frames >> will be in decoding order, which is different from the display order, >> and thus different from the order of frames in the resulting MPEG-4 >> stream (because that doesn't have B frames). In particular, the >> present

Re: [Live-devel] presentationTime and B-Frames

2007-07-02 Thread Julian Lamberty
Ross Finlayson schrieb: >> How is the timeval structure mapped onto the 32bit presentation time in >> the RTP packet, what interval do I have to add to fPresentationTime to >> make RTP timestamp increase by 3600 (i.e. one frame duration @25Hz)? >> > > Receiving code should not need to care abo

Re: [Live-devel] presentationTime and B-Frames

2007-07-02 Thread Ross Finlayson
>How is the timeval structure mapped onto the 32bit presentation time in >the RTP packet, what interval do I have to add to fPresentationTime to >make RTP timestamp increase by 3600 (i.e. one frame duration @25Hz)? Receiving code should not need to care about RTP timestamps. (Only the LIVE555 RT

Re: [Live-devel] presentationTime and B-Frames

2007-07-02 Thread Julian Lamberty
> Note that In your original MPEG-2 stream, with B-frames, the frames > will be in decoding order, which is different from the display order, > and thus different from the order of frames in the resulting MPEG-4 > stream (because that doesn't have B frames). In particular, the > presentation

Re: [Live-devel] presentationTime and B-Frames

2007-06-30 Thread Ross Finlayson
>Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; > micalg=sha1; boundary="ms050109060700050902090703" > >Hi! > >I'm transcoding MPEG-2 (with B-Frames) into MPEG-4 (without >B-Frames, just I and P). Currently I'm just transcoding video, but >later the tr

[Live-devel] presentationTime and B-Frames

2007-06-29 Thread Julian Lamberty
Hi! I'm transcoding MPEG-2 (with B-Frames) into MPEG-4 (without B-Frames, just I and P). Currently I'm just transcoding video, but later the transcoded streams should by able to be synchronised with the source's audio stream: > Audio |