I think I may have a clue on why the application might be crashing after a period of time. I looked at the daily analytics collected by my phone on the day we did the streaming with Mimo Live. It looks like the device has a memory ratio protection where it does not allow any one application to use up all of the phone's memory (presumably).
This is the entry from the daily analytics:
{"aggregationPeriod":"Daily","deviceId":"------","message":{"Count":1,"audio":false,"dirty":false,"name":"NDI HX Camera","priority":100,"reason":"highwater","visible":true},"name":"JetsamAggregationV4","numDaysAggregated":1,"sampling":100.0,"uuid":"1af88f44-22fd-42fd-9991-559bde0d48c6_16"}
There is a JetSameEvent entry that looks like a crash report where there is a metion of sustained-memory-pressure as the reason for the crash. This is the first part of that crash report:
{"bug_type":"298","timestamp":"2025-04-12 17:54:05.00 -0400","os_version":"iPhone OS 18.3.2 (22D82)","roots_installed":0,"incident_id":"5AE62ADF-DBB6-4FDF-A20A-26FB24B5B15B"}
{
"build" : "iPhone OS 18.3.2 (22D82)",
"product" : "iPhone16,1",
"kernel" : "Darwin Kernel Version 24.3.0: Thu Jan 16 02:59:27 PST 2025; root:xnu-11215.82.4~20\/RELEASE_ARM64_T8122",
"incident" : "5AE62ADF-DBB6-4FDF-A20A-26FB24B5B15B",
"crashReporterKey" : "6bdac8def17798b3acbab3bdc799ab11dcfb03d0",
"date" : "2025-04-12 17:54:05.97 -0400",
"codeSigningMonitor" : 2,
"bug_type" : "298",
"timeDelta" : 29,
"memoryStatus" : {
"compressorSize" : 234283,
"compressions" : 15664110,
"decompressions" : 10497337,
"zoneMapCap" : 2973237248,
"largestZone" : "threads",
"largestZoneSize" : 23560192,
"pageSize" : 16384,
"uncompressed" : 446673,
"zoneMapSize" : 337084416,
"memoryPages" : {
"active" : 73252,
"throttled" : 0,
"fileBacked" : 70753,
"wired" : 109166,
"anonymous" : 74938,
"purgeable" : 8,
"inactive" : 72415,
"free" : 2192,
"speculative" : 24
}
},
"largestProcess" : "NDI HX Camera",
"genCounter" : 0,
"processes" : [
{
"states" : [
"daemon",
"idle"
],
"genCount" : 0,
"purgeable" : 0,
"rpages" : 272,
"physicalPages" : {
"internal" : [
3,
248
]
},
"mem_regions" : 534,
"uuid" : "f46e4fc8-29de-37a1-9b76-7c1da8072f5b",
"fds" : 25,
"name" : "MessagesBlastDoorService",
"priority" : 0,
"csTrustLevel" : 7,
"cpuTime" : 0.35179500000000002,
"freeze_skip_reason:" : "disabled",
"idleDelta" : 798565088573,
"age" : 4763492476071,
"coalition" : 5801,
"csFlags" : 570434305,
"reason" : "sustained-memory-pressure",
"pid" : 14391,
"lifetimeMax" : 928,
"killDelta" : 39909
},
This is the entry from the daily analytics:
{"aggregationPeriod":"Daily","deviceId":"------","message":{"Count":1,"audio":false,"dirty":false,"name":"NDI HX Camera","priority":100,"reason":"highwater","visible":true},"name":"JetsamAggregationV4","numDaysAggregated":1,"sampling":100.0,"uuid":"1af88f44-22fd-42fd-9991-559bde0d48c6_16"}
There is a JetSameEvent entry that looks like a crash report where there is a metion of sustained-memory-pressure as the reason for the crash. This is the first part of that crash report:
{"bug_type":"298","timestamp":"2025-04-12 17:54:05.00 -0400","os_version":"iPhone OS 18.3.2 (22D82)","roots_installed":0,"incident_id":"5AE62ADF-DBB6-4FDF-A20A-26FB24B5B15B"}
{
"build" : "iPhone OS 18.3.2 (22D82)",
"product" : "iPhone16,1",
"kernel" : "Darwin Kernel Version 24.3.0: Thu Jan 16 02:59:27 PST 2025; root:xnu-11215.82.4~20\/RELEASE_ARM64_T8122",
"incident" : "5AE62ADF-DBB6-4FDF-A20A-26FB24B5B15B",
"crashReporterKey" : "6bdac8def17798b3acbab3bdc799ab11dcfb03d0",
"date" : "2025-04-12 17:54:05.97 -0400",
"codeSigningMonitor" : 2,
"bug_type" : "298",
"timeDelta" : 29,
"memoryStatus" : {
"compressorSize" : 234283,
"compressions" : 15664110,
"decompressions" : 10497337,
"zoneMapCap" : 2973237248,
"largestZone" : "threads",
"largestZoneSize" : 23560192,
"pageSize" : 16384,
"uncompressed" : 446673,
"zoneMapSize" : 337084416,
"memoryPages" : {
"active" : 73252,
"throttled" : 0,
"fileBacked" : 70753,
"wired" : 109166,
"anonymous" : 74938,
"purgeable" : 8,
"inactive" : 72415,
"free" : 2192,
"speculative" : 24
}
},
"largestProcess" : "NDI HX Camera",
"genCounter" : 0,
"processes" : [
{
"states" : [
"daemon",
"idle"
],
"genCount" : 0,
"purgeable" : 0,
"rpages" : 272,
"physicalPages" : {
"internal" : [
3,
248
]
},
"mem_regions" : 534,
"uuid" : "f46e4fc8-29de-37a1-9b76-7c1da8072f5b",
"fds" : 25,
"name" : "MessagesBlastDoorService",
"priority" : 0,
"csTrustLevel" : 7,
"cpuTime" : 0.35179500000000002,
"freeze_skip_reason:" : "disabled",
"idleDelta" : 798565088573,
"age" : 4763492476071,
"coalition" : 5801,
"csFlags" : 570434305,
"reason" : "sustained-memory-pressure",
"pid" : 14391,
"lifetimeMax" : 928,
"killDelta" : 39909
},
