dsilhavy
commented
1 year ago Basic functionality is implemented.
In general, and this is also true for the other metrics, the XML serialization is pretty painful. I am currently using org.simpleframework.xml.core.Persister with annotations in the corresponding model classes, for instance:
data class HttpList(
@field:ElementList(name = "HttpList") val entries: ArrayList<HttpListEntry>
)
@Root(name = "HttpListEntry")
data class HttpListEntry(
@field:Attribute(name = "tcpid")
@param:Attribute(name = "tcpid")
val tcpid: Int = -1,
@field:Attribute(name = "type")
@param:Attribute(name = "type")
val type: String = HttpListEntryType.OTHER.value,
@field:Attribute(name = "url")
@param:Attribute(name = "url")
val url: String = "",
@field:Attribute(name = "actualurl")
@param:Attribute(name = "actualurl")
val actualurl: String = "",
@field:Attribute(name = "range")
@param:Attribute(name = "range")
val range: String = "",
@field:Attribute(name = "trequest")
@param:Attribute(name = "trequest")
val trequest: Long = -1,
@field:Attribute(name = "tresponse")
@param:Attribute(name = "tresponse")
val tresponse: Long = -1,
@field:Attribute(name = "responsecode")
@param:Attribute(name = "responsecode")
val responsecode: Int = -1,
@field:Attribute(name = "interval")
@param:Attribute(name = "interval")
val interval: Int = -1,
@field:ElementList(name = "Trace") val entries: ArrayList<Trace>
)
@Root(name = "TraceEntry")
data class Trace(
@field:Attribute(name = "s")
@param:Attribute(name = "s")
val s: Long = -1,
@field:Attribute(name = "d")
@param:Attribute(name = "d")
val d: Long = -1,
@field:Attribute(name = "b")
@param:Attribute(name = "b")
val b: Int = -1,
)
enum class HttpListEntryType(val value : String) {
MPD("MPD"),
XLINK_EXPANSION("Xlink expansion"),
INITIALIZATION_SEGMENT("Initialization Segment"),
INDEX_SEGMENT("Index Segment"),
MEDIA_SEGMENT("Media Segment"),
BITSTREAM_SWITCHING_SEGMENT("Bitstream Switching Segment"),
REMOTE_XLINK_ELEMENT("Remote xlink element"),
MPD_PATCH("MPD patch"),
OTHER("other")
}Unfortunately the output is not always as expected, for instance a <httpList> element is added for reasons I don't understand at this point. As an example:
<httpList>
<HttpList>
<HttpListEntry actualurl="https://livesim.dashif.org/livesim/sts_1687272968/sid_c3592d4a/testpic_2s/A48/843636490.m4s" interval="187" range="" responsecode="200" tcpid="-1" trequest="1687272982207" tresponse="1687272982207" type="Media Segment" url="https://livesim.dashif.org/livesim/sts_1687272968/sid_c3592d4a/testpic_2s/A48/843636490.m4s">
<Trace>
<TraceEntry b="13294" d="187" s="1687272982207"/>
</Trace>
</HttpListEntry>
</HttpList>
</httpList>This needs further investigation to find the right format. It is always possible to manipulate the final string afterwards, similar to what I did for removing <object> tags here: https://github.com/5G-MAG/rt-5gms-media-stream-handler/blob/51053fe3ab50b7f49d1fec5189fce8f45839d000/app/src/main/java/com/fivegmag/a5gmsmediastreamhandler/qoeMetrics/threeGPP/QoEMetricsExoPlayer.kt#L64
rjb1000
Feature description
HTTP List entries should be captured by the
ExoPlayerListenerclass and included in the QoE metrics report.Relevant specifications and corresponding clauses
Example