[FFmpeg-trac] #2686(avcodec:open): Native AAC encoder collapses at high bitrates on some samples

FFmpeg trac at avcodec.org
Thu Feb 19 01:58:33 CET 2015


#2686: Native AAC encoder collapses at high bitrates on some samples
-------------------------------------+-------------------------------------
             Reporter:  Kamedo2      |                    Owner:
                 Type:  defect       |  klaussfreire
             Priority:  normal       |                   Status:  open
              Version:  git-master   |                Component:  avcodec
             Keywords:  aac          |               Resolution:
  regression                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Kamedo2):

 Other assertion errors. Hope it helps.
 {{{
 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 40k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28
 zeros:  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0

 sf_idx122122121121121126126124129126129133134136138141139200176146137131123122123123123124124
 diff :...................................................
 +1.................................
      : 60 60 59 60 60 65 60 58 65 57 63 64 61 62 62 63 58121 36 30 51 54
 52 59 61 60 60 61 60


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 64k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32
 zeros:  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0

 sf_idx108108107112107118125125117120130133134136138140137200157145137131123122123123121124120121121122119
 diff :...................................................
 +3.............................................
      : 60 60 59 65 55 71 67 60 52 63 70 63 61 62 62 62 57123 17 48 52 54
 52 59 61 60 58 63 56 61 60 61 57


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 80k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35
 zeros:  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0
            #
 sf_idx158158120123118118120120120120120120122127130134140178187130132127129131184186125130160188136140188144122178
 diff :...
 ........................................................................
 -1...........................
      : 60    22 63 55 60 62 60 60 60 60 60 62 65 63 64 66 98 69  3 62 55
 62 62113 62 -1 65 90 88  8 64108 16 38116


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 128k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
 zeros:  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
            #
 sf_idx152161109103103103118119111105105107170163133123117128123174174133129174174138177186135163129168129163124166126163129169
 diff :...   ..............................
 +3.................................................................................
      : 60    17 54 60 60 75 61 52 54 60 62123 53 30 50 54 71 55111 60 19
 56105 60 24 99 69  9 88 26 99 21 94 21102 20 97 26100


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 160k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
 zeros:  0  1  0  0  0  1  1  1  1  1  0  0  0  0  0  0  0  0  0  0  0  0
 1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
            #           #  #  #  #  #
 #
 sf_idx159159108108 88 88 88 88 88 88 88
 98102102109111152145122125114109115173156127118159148130139148126130148120131148120135148
 diff :...   .........               ....................................
 +4...................................................
      : 60     9 60 40                60 70 64 60 67 62101 53 37 63 49 55
 124 43 31 51101 49 42 69 69 38 64 78 32 71 77 32 75 73


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 320k "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
 zeros:  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0

 sf_idx102102 99104102104101103100100 99102102104
 99103134165103102102103103101101101103102103101102100102101102100101
 99100100101101109110101
 diff :......................................................
 -2..............................................................................
      : 60 60 57 65 58 62 57 62 57 60 59 63 60 62 55 64 91 91 -2 59 60 61
 60 58 60 60 62 59 61 58 61 58 62 59 61 58 61 58 61 60 61 60 68 61 51


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -q:a 0.5 "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35
 zeros:  0  1  0  0  0  1  1  1  1  1  1  1  1  1  1  0  0  0  0  0  0  0
 1  1  1  0  0  1  0  0  0  0  0  0  0  0
            #           #  #  #  #  #  #  #  #  #  #
 #  #  #        #
 sf_idx186186121119119119119119119119119119119119119121124130179178129123123123123175176180123134188129122171182133
 diff :...    -5......                              .....................
 ......   ........................
      : 60    -5 58 60                               62 63 66109 59 11 54
 112 61     7 71114  1 53109 71 11


 $ ffmpeg_v9b -y -i "snippet_tai4.wav" -c:a aac -strict experimental
 -aac_coder anmr -q:a 1 "kfanmr2.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 i    :  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21
 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
 zeros:  0  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
            #
 sf_idx180180119123120120121122124126121163157123119119119140166127127123176132156170136165120165160165171134171128168167166167138
 diff :...
 -1..................................................................................................................
      : 60    -1 64 57 60 61 61 62 62 55102 54 26 56 60 60 81 86 21 60
 56113 16 84 74 26 89 15105 55 65 66 23 97 17100 59 59 61 31







 $ ffmpeg_v9b -y -i "snippet_tai3.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 192k "kfanmr3.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  1  1  1  1  1  1  1  1  1  1
 1  1  4  4  4  4  4  4  4  4  4  4  4  4  7  7  7  7  7  7  7  7  7  7  7
 7
 i    :  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9
 10 11  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9 10
 11
 zeros:  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0
         #
 sf_idx 91 91 90 90 88 92 93 93 93100104109 85 83 82 78 76 76 84 84
 95100111148 86 83 77 73 87 96102105106110117153 90 89 77 77 77 98
 98102106108116156
 diff :
 .....................................................................
 -2................................. -3.................................
      :    60 59 60 58 64 61 60 60 67 64 65 36 58 59 56 58 60 68 60 71 65
 71 97 -2 57 54 56 74 69 66 63 61 64 67 96 -3 59 48 60 60 81 60 64 64 62
 68100


 $ ffmpeg_v9b -y -i "snippet_tai3.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 256k "kfanmr3.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  1  1  1  1  1  1  1  1  1  1
 1  1  4  4  4  4  4  4  4  4  4  4  4  4  7  7  7  7  7  7  7  7  7  7  7
 7
 i    :  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9
 10 11  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9 10
 11
 zeros:  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0
         #
 sf_idx 91 91 90 90 84 92 93 93 93100102105 85 83 81 78 76 76 84 84
 95100111148 86 83 77 73 91 91102105106110117153 90 89 77 77 88
 91102102106110116156
 diff :
 .....................................................................
 -2................................. -3.................................
      :    60 59 60 54 68 61 60 60 67 62 63 40 58 58 57 58 60 68 60 71 65
 71 97 -2 57 54 56 78 60 71 63 61 64 67 96 -3 59 48 60 71 63 71 60 64 64
 66100


 $ ffmpeg_v9b -y -i "snippet_tai3.wav" -c:a aac -strict experimental
 -aac_coder anmr -b:a 320k "kfanmr3.mp4"
 w    :  0  0  0  0  0  0  0  0  0  0  0  0  1  1  1  1  1  1  1  1  1  1
 1  1  4  4  4  4  4  4  4  4  4  4  4  4  7  7  7  7  7  7  7  7  7  7  7
 7
 i    :  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9
 10 11  0  1  2  3  4  5  6  7  8  9 10 11  0  1  2  3  4  5  6  7  8  9 10
 11
 zeros:  1  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
 0
         #
 sf_idx 91 91 90 90 84 92 93 93 93100102105 85 83 81 78 76 76 84 84 95
 98111148 86 83 77 73 91 91102105106110117153 90 82 81 77 88
 98102102106110116156
 diff :
 .....................................................................
 -2................................. -3.................................
      :    60 59 60 54 68 61 60 60 67 62 63 40 58 58 57 58 60 68 60 71 63
 73 97 -2 57 54 56 78 60 71 63 61 64 67 96 -3 52 59 56 71 70 64 60 64 64
 66100
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:362>
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