[Libav-user] Question of libavformat about h263 packetization

Ben Gan xdd123www at gmail.com
Thu Mar 20 07:30:01 CET 2014


I am freshman to ffmpeg and I have one question about h263
packetization after reading the source code of libavformat.

In function send_mode_a() of rtpenc_h263_rfc2190.c,
the sbit flag of each h263 rtp packets shall equal 0.

But according rfc2190, the format of rtp packets should like this:
1st Packet : SBIT 0, EBIT 5.
2nd Packet : SBIT 3, EBIT 0.

I am very confused about this, any help?


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