[MPlayer-dev-eng] [PATCH] support for mpeg transport streams in rtp

[Nico Sabbi]

Il venerdì 30 aprile 2010 18:08:46 Chas Williams (CONTRACTOR) ha 
scritto:
> per rfc 2250, you need to skip an additional 4 bytes of header for
> mpeg transport streams.  if you dont do this, the demuxer cant
> detect the mpeg transport stream.
>
> Index: stream/rtp.c
> ===================================================================
> --- stream/rtp.c	(revision 31105)
> +++ stream/rtp.c	(working copy)
> @@ -246,6 +246,9 @@
>
>    headerSize = 12 + 4*rh->b.cc; /* in bytes */
>
> +  if (rh->b.pt == 32)		/* 32 = MPV from RFC 1890 */
> +	headerSize += 4;	/* skip MPEG video-specific header RFC 2250 */
> +
>    *lengthData = lengthPacket - headerSize;
>    *data = (char*) buf + headerSize;
>


Please, explain. MPV identified the 4-bytes mpeg audio or video 
elementary stream. Does it precede the mpegts payload???