[FFmpeg-trac] #4832(avcodec:new): Freeze when scaling and encoding h264_qsv

FFmpeg trac at avcodec.org
Fri Sep 11 11:58:36 CEST 2015

#4832: Freeze when scaling and encoding h264_qsv
             Reporter:  babgvant      |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  important     |                Component:  avcodec
              Version:  git-master    |               Resolution:
             Keywords:  qsv deadlock  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |

Comment (by IvUs):

 Replying to [ticket:4832 babgvant]:
 > Summary of the bug:
 > At a seemingly random interval ffmpeg will freeze (become non-responsive
 and stop writing output to the console) at 12% CPU and constant RAM when
 -vf "scale... is specified. Process must be killed to continue.
 Hi babgvant!
 Is it possible to get source stream by some way?
 What the system (CPU model, Linux version full kernel version) uses? Was
 the Linux kernel patched as original Intel documentation does require?

Ticket URL: <https://trac.ffmpeg.org/ticket/4832#comment:4>
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