Un gentil forumeur m'a envoyé une capture wireshark du trafic sur son réseau et il en ressort:
- c'est du DASH
- une partie du trafic est du simple http hébergé chez ByTel (notamment les manifestes)
- le matériel utilisé contient a priori du BKS400 de Broadpeak (S4Streaming, was ist das ?)
- la TV fait des requêtes IGMP v2 vers 224.0.1.187, 224.0.0.251, 224.0.0.7
- j'ai aussi du trafic depuis AWS en https, je ne sais pas si c'est lié.
Si quelqu'un de plus calé que moi en diffusion de contenus connaît bien le matériel et la technologie, cela serait intéressant (surtout pour la méthode d'authentification).
Le manifeste indique:
<?xml version="1.0" encoding="UTF-8"?><MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:cenc="urn:mpeg:cenc:2013" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" profiles="urn:mpeg:dash:profile:isoff-live:2011" id="dash-cenc/tf1-hd" type="dynamic" minBufferTime="PT5.000S" maxSegmentDuration="PT2.200S" availabilityStartTime="1970-01-01T00:00:00.000Z" publishTime="2020-08-30T08:41:15.681Z" minimumUpdatePeriod="PT2.000S" timeShiftBufferDepth="PT900.000S"><Period id="2216459961994" start="PT1598751223.721S"><AssetIdentifier schemeIdUri="urn:eidr" value="md:cid:EIDR:10.5240%2f5be0-6383-b5cb-7e7b-C"/><AdaptationSet id="1" contentType="video" mimeType="video/mp4" segmentAlignment="true" startWithSAP="1" maxWidth="1920" maxHeight="1080" maxFrameRate="25" par="16:9"><ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="30303030-3030-3030-3030-303238383139"/><ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAV3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAADcIARIgMzAzMDMwMzAzMDMwMzAzMDMwMzAzMDMyMzgzODMxMzkaCGJvdXlndWVzIgMwMzQqAlNE</cenc:pssh></ContentProtection><SegmentTemplate timescale="90000" initialization="$RepresentationID$-Header-1598751223481-1598775947683.m4s" media="$RepresentationID$-0-T-$Time$.m4s" presentationTimeOffset="2216459961994"><SegmentTimeline><S t="2218687641994" d="180000" r="449"/></SegmentTimeline></SegmentTemplate><!--resentation id="v0_121" bandwidth="400000" codecs="avc1.42E01E" width="640" height="360" frameRate="25" sar="1:1" scanType="progressive--><!--resentation id="v1_121" bandwidth="899968" codecs="avc1.42E01E" width="768" height="432" frameRate="25" sar="1:1" scanType="progressive--><Representation id="v2_121" bandwidth="1760000" codecs="avc1.4D401F" width="960" height="540" frameRate="25" sar="1:1" scanType="progressive"/><Representation id="v3_121" bandwidth="3000000" codecs="avc1.4D4020" width="1280" height="720" frameRate="25" sar="1:1" scanType="progressive"/><Representation id="v4_121" bandwidth="4499968" codecs="avc1.640028" width="1920" height="1080" frameRate="25" sar="1:1" scanType="progressive"/></AdaptationSet><AdaptationSet id="2" contentType="audio" mimeType="audio/mp4" segmentAlignment="true" startWithSAP="1" lang="fra"><ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="30303030-3030-3030-3030-303238383139"/><ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAV3Bzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAADcIARIgMzAzMDMwMzAzMDMwMzAzMDMwMzAzMDMyMzgzODMxMzkaCGJvdXlndWVzIgMwMzQqAlNE</cenc:pssh></ContentProtection><Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/><SegmentTemplate timescale="90000" initialization="$RepresentationID$-Header-1598751223481-1598775947683.m4s" media="$RepresentationID$-0-T-$Time$.m4s" presentationTimeOffset="2216459961994"><SegmentTimeline>[...]
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