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MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test Toshiba, Matsushita, NEC, Oki, NTT MPEG NoordwijkerhoutIETF Adelaide.

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Presentation on theme: "MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test Toshiba, Matsushita, NEC, Oki, NTT MPEG NoordwijkerhoutIETF Adelaide."— Presentation transcript:

1 MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test Toshiba, Matsushita, NEC, Oki, NTT MPEG NoordwijkerhoutIETF Adelaide

2  MPEG-4 Audio/Visual streams mapped directly on RTP packets  Simple but sufficient loss resiliency by Error resiliency of MPEG-4 itself Fragmentation rule  RTP format supports all MPEG-4 natural Audio/Video Profiles  RTCP format supports some Profiles using upstream message (ARTS Profile) MPEG-4 Audio/Visual RTP format draft-ietf-avt-rtp-mpeg4-es-00.txt

3 Internet Draft Update  Marker bit (Visual) Random Access Point  Last packet in a VOP  Timestamp Resolution (Visual, Audio) Default value: 90KHz  Change related to MPEG-4 Version 2 FPDAM to FDAM (Audio, RTCP)  Other editorial clarifications …

4 Audio RTP Interoperability Test  By 2 companies NEC, FhG  MPEG-4 Audio AAC and CELP  LATM (Low-overhead MPEG-4 Audio Transport Multiplex)

5 Visual RTP Interoperability Test  By 4 companies Matsushita, NEC, Oki, Toshiba  MPEG-4 Visual Simple and Core Profile  3 Steps Step 1) Video bitstream exchange Step 2) RTP stream exchange Step 3) Interoperability test through network

6 Summary  Internet Draft  Interoperability test for Visual RTP (Section 3) Audio RTP (Section 4)  Liaison Statement from MPEG  Further Work to be done MIME type registration RTCP (Section 5) Updated Succeed in few weeks 


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