[FFmpeg-trac] #8621(undetermined:new): FFMPEG Audio decoding fails on audio packet (works using libfdk)
FFmpeg
trac at avcodec.org
Sun Aug 30 02:48:06 EEST 2020
#8621: FFMPEG Audio decoding fails on audio packet (works using libfdk)
-------------------------------------+-------------------------------------
Reporter: rayaudius | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: aac | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Changes (by ricidina):
* cc: brendon@… (added)
Comment:
We seem to have encountered the same bug. We upgraded from ffmpeg 3.3 in
Debian Stretch to a Docker container running Alpine Linux and ffmpeg 4.3.
So far only one video that we know of has been affected thankfully.
I have tested this with ffmpeg 3.3, 3.4, 4.0, 4.1, and 4.3. It seems the
bug is present ONLY in 4.0+ using the built-in aac.
Workaround is to use ffmpeg < 4.0 or libfdk_aac.
Here is an example command line we are using:
{{{
/usr/bin/env ffmpeg -i /app/scratch/tomars_theme_song_remix.mp4 -y -c:v
libx264 -s 640x360 -preset veryfast -crf 21 -maxrate 2000000 -bufsize
2500000 -pix_fmt yuv420p -movflags +faststart -c:a aac -b:a 384000
-profile:v baseline /app/scratch/tomars_theme_song_remix.360p.mp4
}}}
Here is the build info:
{{{
ffmpeg version 3.4.8 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3.0 (Alpine 9.3.0)
configuration: --disable-debug --disable-doc --disable-ffplay --enable-
shared --enable-avresample --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-gpl --enable-libass --enable-fontconfig
--enable-libfreetype --enable-libvidstab --enable-libmp3lame --enable-
libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libwebp --enable-libxcb --enable-libx265 --enable-libxvid --enable-libx264
--enable-nonfree --enable-openssl --enable-libfdk_aac --enable-postproc
--enable-small --enable-version3 --enable-libbluray --enable-libzmq
--extra-libs=-ldl --prefix=/opt/ffmpeg --enable-libopenjpeg --enable-
libkvazaar --extra-cflags=-I/opt/ffmpeg/include --extra-
ldflags=-L/opt/ffmpeg/lib
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
}}}
{{{
ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3.0 (Alpine 9.3.0)
configuration: --disable-debug --disable-doc --disable-ffplay --enable-
shared --enable-avresample --enable-libopencore-amrnb --enable-
libopencore-amrwb --enable-gpl --enable-libass --enable-fontconfig
--enable-libfreetype --enable-libvidstab --
enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis
--enable-libvpx --enable-libwebp --enable-libxcb --enable-libx265
--enable-libxvid --enable-libx264 --enable-nonfree --enable-openssl
--enable-libfdk_aac --enable-postproc --enable-small --enable-version3
--enable-libbluray --enable-libzmq --extra-libs=-ldl --prefix=/opt/ffmpeg
--enable-libopenjpeg --enable-libkvazaar --enable-libaom --extra-
libs=-lpthread --enable-libsrt --enable-libaribb24 --extra-
cflags=-I/opt/ffmpeg/include --extra-ldflags=-L/opt/ffmpeg/lib
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
}}}
[https://uploads.ungrounded.net/ffmpeg_bug/tomars_theme_song_remix.original.mp4
Original video.]
[https://uploads.ungrounded.net/ffmpeg_bug/tomars_theme_song_remix.encoded_with_ffmpeg_4_3.mp4
Video encoded with 4.3.1.] This freezes at around the 16 second mark in
Chrome.
ffmpeg reports:
{{{
ffmpeg -i ffmpeg_bug/tomars_theme_song_remix.encoded_with_ffmpeg_4_3.mp4
-f null -
...
[aac @ 0x560f2f6dfe00] error in spectral data, ESC overflow
Error while decoding stream #0:1: Invalid data found when processing input
}}}
[https://uploads.ungrounded.net/ffmpeg_bug/tomars_theme_song_remix.encoded_with_ffmpeg_3_4.mp4
Video encoded with 3.4.8.] No issue with this one.
[https://uploads.ungrounded.net/ffmpeg_bug/ffmpeg_log_3_4.txt Full encode
log for 3.4.]
[https://uploads.ungrounded.net/ffmpeg_bug/ffmpeg_log_4_3.txt Full encode
log for 4.3.]
These logs are the full debug log for the project so contain ffprobe
output and other stuff as well.
Let me know if I can provide anything else.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8621#comment:6>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list