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"COM must not be in STA mode\n" #118

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Sulisahne opened this issue Jul 15, 2022 · 3 comments
Open

"COM must not be in STA mode\n" #118

Sulisahne opened this issue Jul 15, 2022 · 3 comments

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@Sulisahne
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Hi

This error occures when calling avcodec_open2 with the AV_CODEC_ID_H265 or AV_CODEC_ID_H264 encoder on windows:

"COM must not be in STA mode\n"
Could not open the codec: "Invalid argument"

Does anyone have an idea how to fix this?
@gizmocuz
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Did you found the reason or a solution ?

@Sulisahne
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Calling CoUninitialize(); before avcodec_open2 prevents the error. But that does not seem to be a good solution.

@gizmocuz
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It seems to only happen when using the default encoder, not when using nvenc or x264
Calling ::CoInitialize(nullptr); or ::CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED) seems to solve this issue

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@Sulisahne @gizmocuz