[MPlayer-dev-eng] mplayers h264 dump and playback problem, please help
Nico Sabbi
nicola.sabbi at poste.it
Sun Feb 15 11:58:57 CET 2009
Il giorno sab, 14/02/2009 alle 22.17 -0500, Eric Lammerts ha scritto:
> On 02/14/2009 03:54 PM, Ratin wrote:
> > Hi I am trying to dump a h.264 1080i source stream into raw bitstream file,
> > the stream plays fine on mplayer over rtsp. However when I dump the video
> > stream using -dumpvideo and -umpfile mplayer can't play it back. It looks
> > like the bitstream only has one IDR frame (00 00 00 01 65) and no other NALU
> > like sps/pps and mplayer complains about not finding them. But the rtsp
> > stream version works flawlessly.
>
> The SPS and PPS are contained in the sprop-parameter-sets in the SDP data
> (base 64 encoded).
>
> example: a=fmtp:96
> packetization-mode=1;profile-level-id=4D401E;sprop-parameter-sets=J01AHqkYFAe2ANQYBBrbCte98BA=,KN4JyA==
>
> If you prepend 00 00 00 01 to each of them and prepend to your dump the
> video should play (It would be nice if mplayer would do this automatically).
>
> Eric
there would still be no way to identify frames exactly
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