[FFmpeg-trac] #1122(avcodec:open): H264 interlaced multithreaded decoding artifacts

FFmpeg trac at avcodec.org
Fri Apr 13 20:42:25 CEST 2012

#1122: H264 interlaced multithreaded decoding artifacts
             Reporter:  efenstor     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  h264         |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |

Comment (by cehoyos):

 I tested the following command line:
 $ ffmpeg -threads n -i 00009.MTS -f framecrc -an out
 For n==1, I get an identical out file trying several times, for n==7 I get
 a different out file on nearly every run on a (single-core SSE2) Pentium M
 with both git head and 18a7f74 (indicating that this may not be a
 regression or that I see a different problem).

 I was unable to reproduce this issue on a Core-2 Duo.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1122#comment:3>
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