[FFmpeg-trac] #6619(avcodec:new): CUDA/CUVID decoding error

[FFmpeg]

#6619: CUDA/CUVID decoding error
------------------------------------+----------------------------------
             Reporter:  lasereyess  |                     Type:  defect
               Status:  new         |                 Priority:  normal
            Component:  avcodec     |                  Version:
             Keywords:  CUDA        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+----------------------------------
 Apologies if this isn't filled out properly, my version of ffmpeg is not
 listed and I don't know what component this falls under (codecs I think?).

 When decoding files with CUDA on mpv I get some garbage lines on the
 bottom, I have only been able to reproduce it with a single file, so it
 may be an issue with the aspect ratio of the file? I'm not sure.


 With ffmpeg I can reproduce by decoding with CUDA to an image
 {{{
 % ffmpeg -c:v h264_cuvid -ss 00:00:10.0 -i test.mkv -vframes 1 output.png
 }}}

 with mpv (I know this isn't useful to you guys but it's how I discovered
 this bug) it can be reproduced using:
 {{{
 mpv --hwdec=cuda --no-config test.mkv
 }}}

 ffmpeg version:
 {{{
 ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers
   built with gcc 7.1.1 (GCC) 20170630
   configuration: --prefix=/usr --disable-debug --disable-static --disable-
 stripping --enable-avisynth --enable-avresample --enable-fontconfig
 --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass
 --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-
 libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame
 --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg
 --enable-libopus --enable-libpulse --enable-libschroedinger --enable-
 libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-
 libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-
 libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxvid
 --enable-shared --enable-version3
   libavutil      55. 58.100 / 55. 58.100
   libavcodec     57. 89.100 / 57. 89.100
   libavformat    57. 71.100 / 57. 71.100
   libavdevice    57.  6.100 / 57.  6.100
   libavfilter     6. 82.100 /  6. 82.100
   libavresample   3.  5.  0 /  3.  5.  0
   libswscale      4.  6.100 /  4.  6.100
   libswresample   2.  7.100 /  2.  7.100
   libpostproc    54.  5.100 / 54.  5.100
 }}}

 OS: GNU/Linux 64 bit
 GPU: Nvidia GTX 960

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6619>
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