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MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test

MPEG Noordwijkerhout. IETF Adelaide. MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test. Toshiba, Matsushita, NEC, Oki, NTT. MPEG-4 Audio/Visual RTP format draft-ietf-avt-rtp-mpeg4-es-00.txt. MPEG-4 Audio/Visual streams mapped directly on RTP packets

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MPEG-4 Audio/Visual RTP format I/D Update and Interoperability Test

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  1. MPEG Noordwijkerhout IETF Adelaide MPEG-4 Audio/Visual RTP formatI/D Update and Interoperability Test Toshiba, Matsushita, NEC, Oki, NTT

  2. MPEG-4 Audio/Visual RTP format draft-ietf-avt-rtp-mpeg4-es-00.txt • 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)

  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 Updated • 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) Succeed Succeed in few weeks 

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