[FFmpeg-user] Sanity check hardware decode on iOS

Tim trodgers at mac.com
Fri Mar 6 22:24:58 CET 2015

I have been building and running libav*.a on iOS for a few years. I want a
simple way of reporting, at runtime, whether h.264 frame decoding is being
done by hardware or software. Would someone please steer me to code where
that decision is made? I thought the iOS implementation would involve the
VideoToolbox.framework, but my fgrep's are turning up empty and AFAIK, VDA
is not implemented on iOS.

Much appreciated!

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