[FFmpeg-trac] #374(undetermined:new): Artefacts with packed B frames

[FFmpeg]

#374: Artefacts with packed B frames
-------------------------+--------------------------
  Reporter:  cehoyos     |      Owner:
      Type:  defect      |     Status:  new
  Priority:  normal      |  Component:  undetermined
   Version:  git-master  |   Keywords:
Blocked By:              |   Blocking:
Reproduced:  0           |   Analyzed:  0
-------------------------+--------------------------
 {{{
 $ ffmpeg version N-31715-g1c54806, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Aug  1 2011 01:24:30 with gcc 4.5.3
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
   libavutil    51. 11. 1 / 51. 11. 1
   libavcodec   53.  9. 0 / 53.  9. 0
   libavformat  53.  6. 0 / 53.  6. 0
   libavdevice  53.  2. 0 / 53.  2. 0
   libavfilter   2. 27. 5 /  2. 27. 5
   libswscale    2.  0. 0 /  2.  0. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mpeg4 @ 0x12d84a0] Invalid and inefficient vfw-avi packed B frames
 detected

 Seems stream 0 codec frame rate differs from container frame rate:
 30000.00 (30000/1) -> 25.00 (25/1)
 Input #0, avi, from 'getting_stuck.avi':
   Duration: 00:00:15.00, start: 0.000000, bitrate: 689 kb/s
     Stream #0.0: Video: mpeg4, yuv420p, 640x360 [SAR 1:1 DAR 16:9], 25
 fps, 25 tbr, 25 tbn, 30k tbc
     Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 [buffer @ 0x12d6360] w:640 h:360 pixfmt:yuv420p tb:1/1000000 sar:1/1
 sws_param:
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf53.6.0
     Stream #0.0: Video: mpeg4, yuv420p, 640x360 [SAR 1:1 DAR 16:9],
 q=2-31, 200 kb/s, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press [q] to stop, [?] for help
 [mpeg4 @ 0x12d84a0] Invalid and inefficient vfw-avi packed B frames
 detected
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 6 5
 [mpeg4 @ 0x12d84a0] Error at MB: 211
 [mpeg4 @ 0x12d84a0] concealing 818 DC, 818 AC, 818 MV errors
 [mpeg4 @ 0x12d84a0] 1. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 276
 [mpeg4 @ 0x12d84a0] concealing 750 DC, 750 AC, 750 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 38 1
 [mpeg4 @ 0x12d84a0] Error at MB: 79
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] 2. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 277
 [mpeg4 @ 0x12d84a0] concealing 830 DC, 830 AC, 830 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 4 5
 [mpeg4 @ 0x12d84a0] Error at MB: 209
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] 1. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 90
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 18 2
 [mpeg4 @ 0x12d84a0] Error at MB: 100
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] 2. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 401
 [mpeg4 @ 0x12d84a0] concealing 617 DC, 617 AC, 617 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 14 2
 [mpeg4 @ 0x12d84a0] Error at MB: 96
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 5 5
 [mpeg4 @ 0x12d84a0] Error at MB: 210
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 24 6
 [mpeg4 @ 0x12d84a0] Error at MB: 270
 [mpeg4 @ 0x12d84a0] concealing 820 DC, 820 AC, 820 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 0 6
 [mpeg4 @ 0x12d84a0] Error at MB: 246
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 31 2
 [mpeg4 @ 0x12d84a0] Error at MB: 113
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 15 3
 [mpeg4 @ 0x12d84a0] Error at MB: 138
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] I cbpy damaged at 22 6
 [mpeg4 @ 0x12d84a0] Error at MB: 268
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 1 6
 [mpeg4 @ 0x12d84a0] Error at MB: 247
 [mpeg4 @ 0x12d84a0] concealing 774 DC, 774 AC, 774 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 12 2
 [mpeg4 @ 0x12d84a0] Error at MB: 94
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 16 2
 [mpeg4 @ 0x12d84a0] Error at MB: 98
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] 1. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 131
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 30 2
 [mpeg4 @ 0x12d84a0] Error at MB: 112
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] Error at MB: 71
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 15 3
 [mpeg4 @ 0x12d84a0] Error at MB: 138
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] ac-tex damaged at 23 2
 [mpeg4 @ 0x12d84a0] Error at MB: 105
 [mpeg4 @ 0x12d84a0] concealing 920 DC, 920 AC, 920 MV errors
 [mpeg4 @ 0x12d84a0] 2. marker bit missing in 3. esc
 [mpeg4 @ 0x12d84a0] Error at MB: 262
 [mpeg4 @ 0x12d84a0] concealing 825 DC, 825 AC, 825 MV errors
 frame=  197 fps=  0 q=31.0 Lsize=     473kB time=00:00:15.00 bitrate=
 258.1kbits/s dup=0 drop=1
 video:458kB audio:0kB global headers:0kB muxing overhead 3.164174%
 }}}

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/374>
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