[mythtv-commits] Ticket #2707: ffmpeg, mytharchivehelper report wrong fps for some .nuv files

[MythTV]

#2707: ffmpeg, mytharchivehelper report wrong fps for some .nuv files
-----------------------------------+----------------------------------------
 Reporter:  thrantastic at gmail.com  |       Owner:  ijr    
     Type:  defect                 |      Status:  new    
 Priority:  minor                  |   Milestone:  unknown
Component:  mythtv                 |     Version:  0.20   
 Severity:  medium                 |  
-----------------------------------+----------------------------------------
 Mytharchivehelper incorrectly reports some of my transcoded .nuv files as
 having a fps of 29.9167 when it is actually 29.97 by NTSC standard.  This
 error results in audio sync issues when exporting the video with
 Mytharchive.  I can fix the audio sync by hacking the mythburn.py script
 to always return a fps of 29.97, which pinpoints the incorrect fps as the
 cause.

 Through some digging I found that mytharchivehelper gets its fps value
 from libavformat/utils.c, so the problem appears to be with ffmpeg.  I
 don't know enough about the code to be sure, but perhaps
 [http://svn.mplayerhq.hu/ffmpeg?view=rev&revision=6544 ffmpeg revision
 6544] fixes the problem?

 I can supply a .nuv file affected by this (not all of them are) for
 testing if needed.  Attached is the output of mytharchivehelper for an
 offending .nuv.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/2707>
MythTV <http://www.mythtv.org/>
MythTV