[FFmpeg-trac] #7296(undetermined:new): "frame size not set" muxing AAC alone to mpegts

[FFmpeg]

#7296: "frame size not set" muxing AAC alone to mpegts
-------------------------------------+-------------------------------------
             Reporter:  DeHackEd     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Error message when muxing to mpegts containing only AAC audio.

 [mpegts @ 0x17754c0] frame size not set

 How to reproduce:
 {{{
 % ffmpeg -f lavfi -i anullsrc -c aac -f mpegts testbroken.ts
 ffmpeg version N-91396-g27662ed Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-18)
   configuration: --enable-libx264 --extra-cflags='-march=core2' --enable-
 gpl --enable-libfdk-aac --enable-nonfree --disable-vdpau --disable-outdevs
 --disable-hwaccels --disable-indevs --disable-lzma --disable-bzlib
 --enable-zlib --disable-libx265 --enable-indev=lavfi
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 20.104 / 58. 20.104
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 25.100 /  7. 25.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Input #0, lavfi, from 'anullsrc':
   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_u8 (native) -> aac (native))
 Press [q] to stop, [?] for help
 [mpegts @ 0x2db9280] frame size not set
 Output #0, mpegts, to 'testbroken.ts':
   Metadata:
     encoder         : Lavf58.17.101
     Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s
     Metadata:
       encoder         : Lavc58.20.104 aac
 size=     634kB time=00:13:05.48 bitrate=   6.6kbits/s speed= 212x
 video:0kB audio:200kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 216.485977%
 [aac @ 0x2dba9c0] Qavg: 65536.000

 }}}

 The output doesn't appear broken though.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7296>
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