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Published byPatrick Caldwell Modified over 9 years ago
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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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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
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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 …
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Audio RTP Interoperability Test By 2 companies NEC, FhG MPEG-4 Audio AAC and CELP LATM (Low-overhead MPEG-4 Audio Transport Multiplex)
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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
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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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