[vlc-devel] Smooth Streaming, MP4 and H.264

Frederic YHUEL fyhuel at viotech.net
Mon Oct 10 22:06:52 CEST 2011

Hi Chris,

Thank you for your quick answer !

> If your avcC box looks like that than it should be correct because this is
> the definition from ISO/IEC 14496-15:2010 (MPEG-4 Part 15). Take
> care of the lengtsize because samples in MP4 are length encoded and not in
> annexb nalu format.

Ok maybe I did wrong with length, I'll investigate that tomorrow.

> I hope you have also produced a picture parameter set? If you do not
> switch between different resolutions than this should be correct. Because
> the decoder would only see a stream with variable bitrate.

Yes I have. But as you can see the pictureParameterSetNALUnit doesn't
change (see http://pastebin.com/JP4xQe1H), it's always (in hex
encoding) 68E9093525. However the resolution does change... The
problem surely comes from that.

Best Regards,


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