[libav-bugs] [Bug 204] New: avconv has no control over the libx264 2pass log files

bugzilla-daemon at aruru.libav.org bugzilla-daemon at aruru.libav.org
Fri Jan 13 21:22:01 CET 2012


http://bugzilla.libav.org/show_bug.cgi?id=204

           Summary: avconv has no control over the libx264 2pass log files
           Product: Libav
           Version: git HEAD
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: general
        AssignedTo: bugzilla at libav.org
        ReportedBy: john.vansickle at gmail.com


Two pass encoding using libx264 results in three logfiles being created. avconv
has no control over the names of libx264's log files. Here is the list of files
created using a simple '-c:v libx264 -pass 1' command:

  1) av2pass-0.log          <--- This file is blank
  2) x264_2pass.log         <--- This is the actual 1st pass log file.
  3) x264_2pass.log.mbtree  <--- mb-tree ratecontrol info

Also, specifying "-passlogfile test" only modifies av2pass-0.log. Would I guess
should happen is, "av2pass-0.log" is not created and avconv passes the
equivalent of x264's "--stats <string>" to libx264. 

Tested with: avconv version 71b3a63, Copyright (c) 2000-2011 the Libav
developers
               built on Jan 13 2012 14:30:06 with gcc 4.6.2

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