FFmpeg+Decklink+hevc_qsv+SRT

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nikpakar

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FFmpeg+Decklink+hevc_qsv+SRT

PostThu Feb 25, 2021 6:38 am

Dear All,

Im trying to build an encoder with FFmpeg using a Decklink mini recorder as input, HEVC_QSV hardware encoding with a capable processor and MPEG-TS stream over SRT.

Tried many solution but nothing seems works. Does any one has a working config pipeline for the above scenario.

Would high appreciate any help.

Thanks
Nik
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Andrew Kolakowski

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Re: FFmpeg+Decklink+hevc_qsv+SRT

PostWed Mar 17, 2021 9:59 pm

OBS Studio?
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nikpakar

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Re: FFmpeg+Decklink+hevc_qsv+SRT

PostWed Jun 02, 2021 12:51 pm

Hi Andrew,

Many thanks for the reply. I was trying OBS studio. but cant find how to do HEVC. Not even software encoding and no qsv hardware encoding. My processor supports hevc_qsv.

Second, i need to output as MPEG-TS which in the form of a DVB multiplexer expect.

Have you done similar application using OBS ?

Thank you so much and appreciate your kind help.

-Nik
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Andrew Kolakowski

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Re: FFmpeg+Decklink+hevc_qsv+SRT

PostWed Jun 02, 2021 4:46 pm

https://obsproject.com/forum/resources/ ... cksync.82/

look into guide. I don't use OBS, but it should be able to do all what you asked for.
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nikpakar

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Re: FFmpeg+Decklink+hevc_qsv+SRT

PostThu Jun 03, 2021 5:23 am

Hi Andrew,

Many thanks for the link.

It shows QuickSync x264 but doesn't show QuickSync H265/HEVC in OBS.

But I can see it from plain FFmpeg and vmix, which means it does support HEVC-quicksync

Does this means, OBS itself doesn't allow/support h265/hevc ?
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Andrew Kolakowski

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Re: FFmpeg+Decklink+hevc_qsv+SRT

PostThu Jun 03, 2021 1:51 pm

It does- there must be some other reason- drivers etc.

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