[FFmpeg-trac] #631(undetermined:new): h264 in mov shows artefacts

[FFmpeg]

#631: h264 in mov shows artefacts
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  mov h264
             Blocked By:             |               Blocking:
Reproduced by developer:  1          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/33553

 http://ffmpeg.org/pipermail/ffmpeg-
 user/attachments/20111108/dae58f17/attachment.mp4
 http://cache.gmane.org//gmane/comp/video/ffmpeg/user/33553-001.bin

 File is said to play fine with WMP12, plays (too small but) without
 artefacts with QuickTime, shows many artefacts with FFmpeg.

 Works mostly with
 ffmpeg -i noStartCode.mp4 -vcodec copy -bsf h264_mp4toannexb out.h264
 {{{
 $ ffmpeg -i noStartCode.mp4 -qscale 2 out.avi
 ffmpeg version N-34594-g3bdfef3, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov  9 2011 09:56:19 with gcc 4.5.3
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc
   libavutil    51. 24. 0 / 51. 24. 0
   libavcodec   53. 29. 0 / 53. 29. 0
   libavformat  53. 20. 0 / 53. 20. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 47. 0 /  2. 47. 0
   libswscale    2.  1. 0 /  2.  1. 0
 [h264 @ 0x1390720] no frame!

 Seems stream 0 codec frame rate differs from container frame rate: 59.94
 (60000/1001) -> 60.00 (60/1)
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'noStartCode.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isom
     creation_time   : 2011-09-26 19:20:57
   Duration: 00:00:37.81, start: 0.000000, bitrate: 881 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 720x480 [SAR 8:9 DAR 4:3], 875 kb/s, 60 fps, 60 tbr, 600 tbn, 59.94 tbc
     Metadata:
       creation_time   : 2011-09-26 19:20:57
       handler_name    : ?Apple Alias Data Handler
 [buffer @ 0x13885c0] w:720 h:480 pixfmt:yuv420p tb:1/1000000 sar:8/9
 sws_param:
 Output #0, avi, to 'out.avi':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isom
     creation_time   : 2011-09-26 19:20:57
     ISFT            : Lavf53.20.0
     Stream #0:0(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x480
 [SAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 60 tbn, 60 tbc
     Metadata:
       creation_time   : 2011-09-26 19:20:57
       handler_name    : ?Apple Alias Data Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> mpeg4)
 Press [q] to stop, [?] for help
 [h264 @ 0x1390720] no frame!
 Error while decoding stream #0:0
 [h264 @ 0x1390720] mmco: unref short failure
     Last message repeated 1 times
 [h264 @ 0x1390720] no frame!
 Error while decoding stream #0:0
 [h264 @ 0x1390720] mmco: unref short failure
     Last message repeated 1 times

 ...

 [h264 @ 0x1390720] no frame!
 Error while decoding stream #0:0
 [h264 @ 0x1390720] mmco: unref short failure
     Last message repeated 1 times
 [h264 @ 0x1390720] no frame!
 Error while decoding stream #0:0
 [h264 @ 0x1390720] mmco: unref short failure
     Last message repeated 1 times
 [h264 @ 0x1390720] no frame!
 Error while decoding stream #0:0
 frame=   85 fps= 54 q=2.0 Lsize=    6264kB time=00:00:06.03
 bitrate=8505.1kbits/s
 video:6250kB audio:0kB global headers:0kB muxing overhead 0.226366%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/631>
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