[FFmpeg-trac] #10008(avcodec:new): "Reserved bit set" errors while decoding aac

FFmpeg trac at avcodec.org
Fri Nov 4 10:20:33 EET 2022


#10008: "Reserved bit set" errors while decoding aac
---------------------------------+---------------------------------------
             Reporter:  pszemus  |                     Type:  enhancement
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  unspecified
             Keywords:  aac      |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
---------------------------------+---------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 $ ffmpeg -i 20221102_NEWSROOM_BRONOWICZ_ZAPORA.mp4 -f null -
 ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
   built with gcc 12 (GCC)
   configuration: --prefix=/usr --bindir=/usr/bin
 --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg
 --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man
 --arch=x86_64 --optflags='-O2 -flto=auto -ffat-lto-objects -fexceptions -g
 -grecord-gcc-switches -pipe -Wall -Werror=format-security
 -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
 -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
 -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection'
 --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now
 -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat
 /redhat-annobin-cc1 -Wl,--build-id=sha1 ' --extra-cflags='
 -I/usr/include/rav1e' --enable-libopencore-amrnb --enable-libopencore-
 amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --enable-
 chromaprint --disable-crystalhd --enable-fontconfig --enable-frei0r
 --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-
 libdav1d --enable-libass --enable-libbluray --enable-libbs2b --enable-
 libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-
 libfribidi --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-
 libmysofa --enable-nvenc --enable-openal --enable-opencl --enable-opengl
 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-
 libpulse --enable-librsvg --enable-librav1e --enable-librubberband
 --enable-libsmbclient --enable-version3 --enable-libsnappy --enable-
 libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-
 libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvorbis
 --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3
 --enable-vapoursynth --enable-libvpx --enable-vulkan --enable-libglslang
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid
 --enable-libxml2 --enable-libzimg --enable-libzmq --enable-libzvbi
 --enable-lv2 --enable-avfilter --enable-libmodplug --enable-postproc
 --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-
 debug --disable-stripping --shlibdir=/usr/lib64 --enable-lto --enable-
 libmfx --enable-runtime-cpudetect
   libavutil      57. 17.100 / 57. 17.100
   libavcodec     59. 18.100 / 59. 18.100
   libavformat    59. 16.100 / 59. 16.100
   libavdevice    59.  4.100 / 59.  4.100
   libavfilter     8. 24.100 /  8. 24.100
   libswscale      6.  4.100 /  6.  4.100
   libswresample   4.  3.100 /  4.  3.100
   libpostproc    56.  3.100 / 56.  3.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 '20221102_NEWSROOM_BRONOWICZ_ZAPORA.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: avc1isommp42
     creation_time   : 2022-11-02T07:38:41.000000Z
   Duration: 00:00:58.37, start: 0.000000, bitrate: 9220 kb/s
   Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 8876 kb/s, 25 fps, 25 tbr, 90k tbn (default)
     Metadata:
       creation_time   : 2022-11-02T07:38:41.000000Z
       handler_name    : Apple Video Media Handler
       vendor_id       : [0][0][0][0]
       encoder         : inegy Cinecoder H.264 Encoder
   Stream #0:1[0x2](und): Audio: aac (LTP) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 339 kb/s (default)
     Metadata:
       creation_time   : 2022-11-02T07:38:41.000000Z
       handler_name    : Apple Sound Media Handler
       vendor_id       : [0][0][0][0]
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
   Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: avc1isommp42
     encoder         : Lavf59.16.100
   Stream #0:0(und): Video: wrapped_avframe, yuv420p(top coded first
 (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn
 (default)
     Metadata:
       creation_time   : 2022-11-02T07:38:41.000000Z
       handler_name    : Apple Video Media Handler
       vendor_id       : [0][0][0][0]
       encoder         : Lavc59.18.100 wrapped_avframe
   Stream #0:1(und): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
 (default)
     Metadata:
       creation_time   : 2022-11-02T07:38:41.000000Z
       handler_name    : Apple Sound Media Handler
       vendor_id       : [0][0][0][0]
       encoder         : Lavc59.18.100 pcm_s16le
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:00.32 bitrate=N/A
 speed=8.05x
     Last message repeated 9 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:11.58 bitrate=N/A speed=
 11x
     Last message repeated 1 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:17.83 bitrate=N/A
 speed=11.5x
     Last message repeated 6 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:23.82 bitrate=N/A
 speed=11.6x
     Last message repeated 1 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:29.67 bitrate=N/A
 speed=11.6x
     Last message repeated 9 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:35.58 bitrate=N/A
 speed=11.6x
     Last message repeated 14 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:41.74 bitrate=N/A
 speed=11.7x
     Last message repeated 9 times
 [aac @ 0x5556746778c0] Reserved bit set.=00:00:48.06 bitrate=N/A
 speed=11.8x
     Last message repeated 15 times
 frame= 1459 fps=326 q=-0.0 Lsize=N/A time=00:00:58.36 bitrate=N/A speed=
 13x
 video:638kB audio:10944kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: unknown
 }}}

 Lots of "`[aac @ 0x5556746778c0] Reserved bit set`" errors but file
 proceeds correctly. Maybe they should be suppressed, silenced or
 downgraded to warnings?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10008>
FFmpeg <https://ffmpeg.org>
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