[FFmpeg-trac] #1049(undetermined:new): bad sound (clicks + low pitch / slower speed)

[FFmpeg]

#1049: bad sound (clicks + low pitch / slower speed)
-------------------------------------+-------------------------------------
             Reporter:  goblin       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  low pitch    |               Blocked By:
  sound, clicks                      |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Since I've upgraded mplayer from debian squeeze's
 2:1.0~rc3++final.dfsg1-1, sound in one of my .mkv files became weird -
 hearing lots of clicks and lower pitch and possibly slower speed than it
 should have (like if you played a vinyl record on too slow RPM).

 In squeeze-backports' mplayer version 2:1.0~rc4.dfsg1+svn33713-2~bpo60+1
 it was logging lots of messages similar to:


 [aac @0x7f1e7b4acbe0]Not evaluating a further program_config_element as
 this construct is dubious at best.

 With latest mplayer with latest ffmpeg, I instead see lots of this (and
 the problem is the same):

 [aac @0x125c100]Evaluating a further program_config_element.

 Here's the full output of latest ffplay (version git-2012-03-09-d07de6d)
 when trying to play the file:


 ffplay version git-2012-03-09-d07de6d Copyright (c) 2003-2012 the FFmpeg
 developers
   built on Mar  9 2012 18:52:30 with gcc 4.4.5
   configuration:
   libavutil      51. 42.100 / 51. 42.100
   libavcodec     54. 10.100 / 54. 10.100
   libavformat    54.  2.100 / 54.  2.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 63.100 /  2. 63.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0.  7.100 /  0.  7.100
 [h264 @ 0x207be00] Increasing reorder buffer to 1
 Input #0, matroska,webm, from 'file.mkv':
   Metadata:
     title           : <cut>
     creation_time   : 2006-03-30 <cut>
   Duration: <cut>, start: 0.000000, bitrate: 1811 kb/s
     Stream #0:0(jpn): Video: h264 (Main), yuv420p, 1280x720, SAR 1:1 DAR
 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
     Metadata:
       title           : <cut>
     Stream #0:1(jpn): Audio: aac, 48000 Hz, 5.1, s16 (default)
     Metadata:
       title           : Japense Audio 6ch AAC
 [aac @ 0x207c480] Evaluating a further program_config_element.1/0   f=0/0
    1.70 A-V: -0.016 fd=   2 aq=  320KB vq= 1141KB sq=    0B f=1/0
     Last message repeated 2 times

 When playing the file with latest mplayer with -ac faad (as suggested by
 someone on IRC), the sound is fine.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1049>
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