Friday, October 22, 2010

SDP - H.264 packetization-mode

packetization-mode defines the packetization rule for the incoming stream connection.

With respect to H.264, RFC 3984 defines packetization-mode as

packetization-mode=0 or does not exist imply the incoming RTP packets are packetized in Single NAL mode
packetization-mode=1 imply the incoming RTP packets are packetized in non-interleaved mode
packetization-mode=2 imply the incoming RTP packets are packetized ininterleaved mode

See RFC 3984 section 6 for full details. Also read Section 8.1 MIME registration.

2 comments:

  1. Do you know, how to send .h264 files via RTP?

    ReplyDelete
  2. First, you need to get H.264 frames from your source (File/network/stream/etc...). I am referring each frame as NAL unit. Then, you can use the following RFC to packetize each NAL unit.

    See RFC3984 http://www.ietf.org/rfc/rfc3984.txt

    Especially

    5.6. Single NAL Unit Packet.................................. 18

    Use this if your NAL can be sent within a single RTP packet

    5.7. Aggregation Packets..................................... 18

    You can consider this to send SPS and PPS


    5.8. Fragmentation Units (FUs)............................... 27

    You can use this to send a NAL over multiple RTP packets

    ReplyDelete

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