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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Here is an example from the QtAV library:<o:p></o:p></span></p>
<p class="MsoNormal"><a href="https://github.com/wang-bin/QtAV/blob/master/src/codec/video/VideoDecoderVideoToolbox.cpp">https://github.com/wang-bin/QtAV/blob/master/src/codec/video/VideoDecoderVideoToolbox.cpp</a><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Libav-user [mailto:libav-user-bounces@ffmpeg.org]
<b>On Behalf Of </b>Philippe Noël<br>
<b>Sent:</b> Thursday, February 6, 2020 9:07 AM<br>
<b>To:</b> This list is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter.<br>
<b>Subject:</b> Re: [Libav-user] Using Videotoolbox H.264 decode on MacOS<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-family:"Cambria","serif";color:red">Security Notice: Please be aware that this email was sent by an external sender.
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<p class="MsoNormal">Bumping this, anyone has experience working with videotoolbox on libav?
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<p class="MsoNormal">Philippe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Sun, Feb 2, 2020 at 11:53 AM Philippe Noël <<a href="mailto:philippe_noel@college.harvard.edu">philippe_noel@college.harvard.edu</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello, <o:p></o:p></p>
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<p class="MsoNormal">I'm trying to use Hwaccel H.264 decoding on MacOS. I have MacOS Catalina (Late 2015 model) and when I run "ffmpeg -hwaccels" it shows "videotoolbox" twice. From the FFmpeg website, it seems videotoolbox is implemented for both encode and
decode of H.264 videos.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I've found the encoder name, "h264_videotoolbox" but I can't find the name to feed to "avcodec_find_decoder_by_name" for the videotoolbox decoder. I was searching online and couldn't find much, but found that apparently standard "h264"
decoder will use videotoolbox hwaccel if properly set up, is that correct? How should I proceed to decode H264 with videotoolbox, how do I tell the decoder to use videotoolbox hwaccel with h264, or what is the name of the videotoolbox decoder?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks for your help!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Philippe<o:p></o:p></p>
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