[FFmpeg-trac] #6912(ffmpeg:new): macOS - h264_videotoolbox encoder gives "No device available for encoder" warning

FFmpeg trac at avcodec.org
Tue Dec 12 18:00:30 EET 2017


#6912: macOS - h264_videotoolbox encoder gives "No device available for encoder"
warning
-------------------------------------+-------------------------------------
             Reporter:  alexpigment  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffmpeg       |                  Version:  3.4
             Keywords:  macOS,       |               Blocked By:
  videotoolbox, warning, quick       |  Reproduced by developer:  0
  sync, qsv                          |
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 When encoding with the h264_videotoolbox encoder on macOS, a warning is
 given that says "No device available for encoder (device type videotoolbox
 for codec h264_videotoolbox)". Since this message is confusing to users
 and potentially sounds like a software fallback is being used or something
 isn't configured correctly, it should be removed. Issue is similar to
 #6492.

 How to reproduce:
 {{{
 % ffmpeg -f lavfi -i smptebars=size=1280x720:rate=30 -c:v
 h264_videotoolbox -color_range jpeg -pix_fmt nv12 -t 5 output.mp4
 }}}

 Confirmed on Macbook with Intel Core M CPU ; integrated GPU.

 ffmpeg 3.4.1
 built on 2017-12-11

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6912>
FFmpeg <https://ffmpeg.org>
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