[FFmpeg-trac] #8099(undetermined:reopened): empty output converting from 8ch .aac

[FFmpeg]

#8099: empty output converting from 8ch .aac
-------------------------------------+-------------------------------------
             Reporter:  martinbe     |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  aac          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by martinbe):

 * status:  closed => reopened
 * resolution:  invalid =>


Comment:

 Also reproduced.  Output file size is 0 byte.  Info about tested build:

 ffmpeg.exe -v 9 -loglevel 99 -i 8ch_noLfeFiltering_decodeFails.aac

 ffmpeg version N-94664-g0821bc4eee Copyright (c) 2000-2019 the FFmpeg
 developers
   built with gcc 9.1.1 (GCC) 20190807
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   libavutil      56. 33.100 / 56. 33.100
   libavcodec     58. 55.101 / 58. 55.101
   libavformat    58. 31.104 / 58. 31.104
   libavdevice    58.  9.100 / 58.  9.100
   libavfilter     7. 58.101 /  7. 58.101
   libswscale      5.  6.100 /  5.  6.100
   libswresample   3.  6.100 /  3.  6.100
   libpostproc    55.  6.100 / 55.  6.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument '99'.
 Reading option '-i' ... matched as input url with argument
 '8ch_noLfeFiltering_decodeFails.aac'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input url 8ch_noLfeFiltering_decodeFails.aac.
 Successfully parsed a group of options.
 Opening an input file: 8ch_noLfeFiltering_decodeFails.aac.
 [NULL @ 0000024f319b8980] Opening '8ch_noLfeFiltering_decodeFails.aac' for
 reading
 [file @ 0000024f319b9300] Setting default whitelist 'file,crypto'
 Probing aac score:51 size:2048
 Probing flac score:13 size:2048
 [aac @ 0000024f319b8980] Format aac probed with size=2048 and score=51
 [aac @ 0000024f319b8980] Before avformat_find_stream_info() pos: 0 bytes
 read:65696 seeks:4 nb_streams:1
 [aac @ 0000024f319cac40] channel element 0.7 is not allocated
     Last message repeated 426 times
 [aac @ 0000024f319b8980] decoding for stream 0 failed
 [aac @ 0000024f319b8980] Estimating duration from bitrate, this may be
 inaccurate
 [aac @ 0000024f319b8980] stream 0: start_time: -326791809695.818 duration:
 9.020
 [aac @ 0000024f319b8980] format: start_time: -9223372036854.775 duration:
 9.020 bitrate=435 kb/s
 [aac @ 0000024f319b8980] Could not find codec parameters for stream 0
 (Audio: aac (LC), 7.1, fltp, 435 kb/s): unspecified sample rate
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 [aac @ 0000024f319b8980] After avformat_find_stream_info() pos: 490874
 bytes read:523802 seeks:4 frames:427
 Input #0, aac, from '8ch_noLfeFiltering_decodeFails.aac':
   Duration: 00:00:09.02, bitrate: 435 kb/s
     Stream #0:0, 427, 1/28224000: Audio: aac (LC), 7.1, fltp, 435 kb/s
 Successfully opened the file.
 At least one output file must be specified
 [AVIOContext @ 0000024f319c1dc0] Statistics: 523802 bytes read, 4 seeks

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8099#comment:3>
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