TITRE Adaptive Packet Video Streaming Over IP Networks - LaBRI

List of Figures
Figure 1-1: Structure d'une scène MPEG-4 ..................................................................................................2
Figure 1-2: Architecture du classificateur RBF.............................................................................................5
Figure 1-3: Transport des flux MPEG-4 avec une entête SL réduite .......................................................7
Figure 1-4: Synthèse des approches du transport de la vidéo MPEG-4 sur les réseaux IP ..................8
Figure 1-5: Processus d’Encapsulation des Flux Elémentaires (ES) MPEG-4 .....................................11
Figure 1-6: Signalisation des ES_ID dans l’Entête RTP...........................................................................13
Figure 1-7: Signalisation des ES_IDs dans le Payload RTP. ....................................................................13
Figure 1-8: Structure d’un paquet RTP........................................................................................................13
Figure 1-9: Structure de Paquet SL Réduit..................................................................................................14
Figure 1-10: Entête de chaque Unité d’Accès (AU)...................................................................................14
Figure 1-11: Gestion de la stabilité de la video par GOP .........................................................................17
Figure 1-12: Un exemple simple d'algorithme de marquage IP Diffserv ...............................................18
Figure 1-13: Interconnexion entre MPEG-4 DMIF et SIP......................................................................19
Figure 1-14 : L’entité SIP2DMIF..................................................................................................................20
Figure 1-15 : L’entité DMIF2SIP..................................................................................................................22
Figure 1-16: Diagramme général des différents blocs de notre système de diffusion vidéo...............24
Figure 3-1: Taxonomy of video transmission approaches........................................................................31
Figure 3-2: Application layer multicast vs. IP multicast............................................................................32
Figure 3-3: Classification of user application according to loss and delay requirements.....................35
Figure 3-4: CBR vs. VBR coding and CBR vs. VBR transmission .........................................................35
Figure 3-5: Example of the prediction dependencies between frames...................................................39
Figure 3-6: Current and emerging video compression standards............................................................39
Figure 3-7: Hierarchical organization of MPEG-2 data stream...............................................................41
Figure 3-8: Hierarchical organization of MPEG-4 data stream...............................................................42
Figure 3-9: Video scalability coding modes.................................................................................................45
Figure 3-10: Taxonomy for reliable video transmission............................................................................51
Figure 3-11: IP differentiated service components....................................................................................56
Figure 3-12: Taxonomy of multimedia session control signaling protocols..........................................59
Figure 4-1: Classification layer in the MPEG-4 architecture....................................................................66
Figure 4-2: MPEG-4 AVO with corresponding objects description......................................................67
Figure 4-3: RBF architecture for classification ...........................................................................................68
Figure 4-4: MPEG-4 scene used for experiment .......................................................................................69
Figure 4-5: Throughput of each MPEG-4 video object ...........................................................................70
Figure 4-6: Experiment testbed.....................................................................................................................71
Figure 4-7: End-to-end transmission delay .................................................................................................73
Figure 4-8: MPEG-4 AVO packet loss ratio ..............................................................................................74
Figure 4-9: Concurrent approaches for encapsulating MPEG-4 stream over the IP networks .........78
Figure 4-10: Elementary stream encapsulation process ............................................................................81
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