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

[FFmpeg]

#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):

 {{{
 ffmpeg77208 -y -i ffmpeg_aac_error2.flac -c:a aac -profile:a aac_ltp -b:a
 96k out.mp4
 ffmpeg version N-77208-gb4f1636 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 5.2.0 (GCC)
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
 libmp3
 lame --enable-libvo-aacenc --enable-libvorbis --enable-libfdk-aac
 --enable-w32th
 reads --extra-ldflags=-static --extra-cflags='-mtune=nocona'
 --optflags=-O2
   libavutil      55. 10.100 / 55. 10.100
   libavcodec     57. 17.100 / 57. 17.100
   libavformat    57. 20.100 / 57. 20.100
   libavdevice    57.  0.100 / 57.  0.100
   libavfilter     6. 20.100 /  6. 20.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, flac, from 'ffmpeg_aac_error2.flac':
   Metadata:
     REPLAYGAIN_TRACK_GAIN: -0.57 dB
     REPLAYGAIN_TRACK_PEAK: 0.474701
   Duration: 00:00:15.00, start: 0.000000, bitrate: 658 kb/s
     Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
     Side data:
       replaygain: track gain - -0.570000, track peak - 0.000011, album
 gain - un
 known, album peak - unknown,
 Output #0, mp4, to 'out.mp4':
   Metadata:
     REPLAYGAIN_TRACK_GAIN: -0.57 dB
     REPLAYGAIN_TRACK_PEAK: 0.474701
     encoder         : Lavf57.20.100
     Stream #0:0: Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo,
 fltp (16
  bit), 96 kb/s
     Metadata:
       encoder         : Lavc57.17.100 aac
 Stream mapping:
   Stream #0:0 -> #0:0 (flac (native) -> aac (native))
 Press [q] to stop, [?] for help
 Audio encoding failed (avcodec_encode_audio2)
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/2686#comment:460>
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