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# helpdesks
steep-balloon-41261
09/06/2023, 3:14 PMThis message was deleted.
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enough-boots-69343
09/06/2023, 3:15 PMI am using the default values. It should be h264.
n
narrow-eve-8333
09/06/2023, 3:23 PM@enough-boots-69343 please verify.
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enough-boots-69343
09/06/2023, 3:31 PMI checked.
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dry-elephant-14928
09/07/2023, 7:22 AMare you using adaptive stream?
dry-elephant-14928
09/07/2023, 7:23 AMon mobile devices, we recommend it so that the device isn't pulling/decoding so many high resolution video tiles at the same time
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enough-boots-69343
09/07/2023, 7:31 AMIt was closed, I'll open it and try. thanks
enough-boots-69343
09/13/2023, 4:19 PM@dry-elephant-14928 Adaptive stream has been on for two days. But the problem is the same, iPhone devices warn that they are overheating.
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dry-elephant-14928
09/14/2023, 5:50 AMI would suggest running your app in profile mode to see what is consuming CPU
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dry-elephant-14928
09/14/2023, 6:10 AMwe haven't seen cases where decoding H.264 or VP8 would cause overheating.. they are pretty inexpensive to decode (should be able to do 9 concurrent decodes on screen without a problem)
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enough-boots-69343
09/14/2023, 6:46 AMI've never used CPU profiler before. How should this screen be interpreted?
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narrow-eve-8333
09/14/2023, 1:23 PMI saw a case where running VP8 on iOS caused over heating on another platform, because VP8 is software based on iOS. iOS has H264 hardware encoder/decoder.
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enough-boots-69343
09/14/2023, 1:42 PMSince I don't have any special codecs, I use H264 anyway.
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narrow-eve-8333
09/14/2023, 1:42 PMso, it is weird to have over-heating on iOS