[Bug 992884] [NEW] convert to mpeg fails due to ffmpeg flags argument

[rt_davies]

Public bug reported:

I have a script to make a directory full of jpegs into an mpeg movie.
It simply calls convert with a couple arguments.  The script has worked
for 2 years.  Recently, I ran it for the first time in a few months and
it failed with the following error message:

convert: delegate failed `"ffmpeg" -v -1 -mbd rd -flags +4mv+aic
-trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2 -i "%M%%d.jpg" "%u.%m" 2>
"%Z"' @ error/delegate.c/InvokeDelegate/1061.

After reading man pages and online documentation for a while, I believe
that the -flags argument is at fault.  I believe that the current
version of ffmpeg does not accept a -flags argument at all.  Removing it
from delegates.xml allows my old script to succeed again.

I propose the solution is to remove the -flags argument from
delegates.xml line 83:

$ diff /usr/lib/ImageMagick-6.6.0/config/delegates.xml.orig /usr/lib/ImageMagick-6.6.0/config/delegates.xml
83c83
<   <delegate encode="mpeg:encode" stealth="True" command=""ffmpeg" -v -1 -mbd rd -flags +4mv+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2 -i "%M%%d.jpg" "%u.%m" 2> "%Z""/>
---
>   <delegate encode="mpeg:encode" stealth="True" command=""ffmpeg" -v -1 -mbd rd -trellis 2 -cmp 2 -subcmp 2 -g 300 -i "%M%%d.jpg" "%u.%m" 2> "%Z""/>
 
With the -flags argument removed, the delegate command matches the latest ImageMagick release (http://www.imagemagick.org/source/delegates.xml).

Here is more information about my configuration

$ sudo aptitude show imagemagick
Package: imagemagick                     
New: yes
State: installed
Automatically installed: no
Version: 8:6.6.0.4-3ubuntu1
 
$ uname -a
Linux 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -rd
Description:	Ubuntu 11.10
Release:	11.10

** Affects: imagemagick (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/992884

Title:
  convert to mpeg fails due to ffmpeg flags argument

Status in “imagemagick” package in Ubuntu:
  New

Bug description:
  I have a script to make a directory full of jpegs into an mpeg movie.
  It simply calls convert with a couple arguments.  The script has
  worked for 2 years.  Recently, I ran it for the first time in a few
  months and it failed with the following error message:

  convert: delegate failed `"ffmpeg" -v -1 -mbd rd -flags +4mv+aic
  -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2 -i "%M%%d.jpg" "%u.%m" 2>
  "%Z"' @ error/delegate.c/InvokeDelegate/1061.

  After reading man pages and online documentation for a while, I
  believe that the -flags argument is at fault.  I believe that the
  current version of ffmpeg does not accept a -flags argument at all.
  Removing it from delegates.xml allows my old script to succeed again.

  I propose the solution is to remove the -flags argument from
  delegates.xml line 83:

  $ diff /usr/lib/ImageMagick-6.6.0/config/delegates.xml.orig /usr/lib/ImageMagick-6.6.0/config/delegates.xml
  83c83
  <   <delegate encode="mpeg:encode" stealth="True" command=""ffmpeg" -v -1 -mbd rd -flags +4mv+aic -trellis 2 -cmp 2 -subcmp 2 -g 300 -pass 1/2 -i "%M%%d.jpg" "%u.%m" 2> "%Z""/>
  ---
  >   <delegate encode="mpeg:encode" stealth="True" command=""ffmpeg" -v -1 -mbd rd -trellis 2 -cmp 2 -subcmp 2 -g 300 -i "%M%%d.jpg" "%u.%m" 2> "%Z""/>
   
  With the -flags argument removed, the delegate command matches the latest ImageMagick release (http://www.imagemagick.org/source/delegates.xml).

  Here is more information about my configuration

  $ sudo aptitude show imagemagick
  Package: imagemagick                     
  New: yes
  State: installed
  Automatically installed: no
  Version: 8:6.6.0.4-3ubuntu1
   
  $ uname -a
  Linux 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

  $ lsb_release -rd
  Description:	Ubuntu 11.10
  Release:	11.10

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