[FFmpeg-trac] #5204(undetermined:new): Unable to transcode from prores or dnxhd to nvenc_hevc

[FFmpeg]

#5204: Unable to transcode from prores or dnxhd to nvenc_hevc
-------------------------------------+-------------------------------------
             Reporter:  mattervr-    |                     Type:  defect
  moliver                            |                 Priority:  normal
               Status:  new          |                  Version:
            Component:               |               Blocked By:
  undetermined                       |  Reproduced by developer:  0
             Keywords:  h265 nvenc   |
  hevc                               |
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 - Unable to transcode from input files that are encoded with prores or
 dnxhd to h265 using the hardware nvenc_hevc codec.
 - file encoded with h264 transcode using nvenc_hevc just fine
 - nvenc_x264 is able to transcode using the hw encoder for x264 and dnxhd
 or prores inputs

 Full trace log here: http://pastebin.com/Q05KVbBS

 How to reproduce:
 {{{
 % ffmpeg.exe -i input.mov -vcodec nvenc_hevc out.mov
 }}}

 ffmpeg version 2.8.5 Copyright (c) 2000-2016 the FFmpeg developers
   built with gcc 5.3.0 (GCC)
   configuration: --prefix=/home/moliver/FFmpeg/x86_64 --enable-small
 --disable-debug --disable-doc --arch=x86_64 --cc='ccache
 x86_64-w64-mingw32-gcc' --cross-prefix=x86_64-w64-mingw32- --enable-cross-
 compile --target-os=mingw32 --enable-libfdk-aac --enable-libmp3lame
 --enable-libopus --enable-libspeex --enable-libx264 --enable-libx265
 --enable-libmfx --enable-nvenc --enable-libopenh264 --enable-gpl --enable-
 nonfree
   libavutil      54. 31.100 / 54. 31.100
   libavcodec     56. 60.100 / 56. 60.100
   libavformat    56. 40.101 / 56. 40.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 40.101 /  5. 40.101
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  2.101 /  1.  2.101
   libpostproc    53.  3.100 / 53.  3.100

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5204>
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