[FFmpeg-trac] #7995(undetermined:new): Division by zero at libavcodec/aacpsy.c:797:29
FFmpeg
trac at avcodec.org
Sun Sep 15 15:36:27 EEST 2019
#7995: Division by zero at libavcodec/aacpsy.c:797:29
-------------------------------------+-------------------------------------
Reporter: Suhwan | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: git-master | Resolution:
Keywords: ubsan asan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by Suhwan):
{{{
ffmpeg version N-94906-gcb8d6a4e3e Copyright (c) 2000-2019 the FFmpeg
developers
built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
configuration: --cc=clang --cxx=clang++ --ld=clang --enable-debug
--toolchain=clang-usan
libavutil 56. 35.100 / 56. 35.100
libavcodec 58. 56.101 / 58. 56.101
libavformat 58. 32.104 / 58. 32.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.102 / 7. 58.102
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
Input #0, flv, from 'tmp.flv':
Metadata:
encoder : Lavf57.66.105
Duration: 00:00:05.60, start: 0.000000, bitrate: 627 kb/s
Stream #0:0: Audio: mp3, 48000 Hz, mono, fltp, 64 kb/s
Stream #0:1: Video: flv1, yuv420p, 560x320, 200 kb/s, 30 fps, 30 tbr,
1k tbn
Stream mapping:
Stream #0:0 -> #0:0 (mp3 (mp3float) -> aac (native))
Stream #0:1 -> #0:1 (flv1 (flv) -> zmbv (native))
Press [q] to stop, [?] for help
[aac @ 0x9b19d40] Bitrate 945 is extremely low, maybe you mean 945k
[aac @ 0x9b19d40] Using a PCE to encode channel layout "2.1"
The bitrate parameter is set too low. It takes bits/s as argument, not
kbits/s
Output #0, latm, to 'tmp_.loas':
Metadata:
encoder : Lavf58.32.104
Stream #0:0: Audio: aac (LC), 48000 Hz, 2.1, fltp, 0 kb/s
Metadata:
encoder : Lavc58.56.101 aac
Stream #0:1: Video: zmbv, bgr0, 560x320, q=2-31, 200 kb/s, 6 fps, 6
tbn, 6 tbc
Metadata:
encoder : Lavc58.56.101 zmbv
libavcodec/aacpsy.c:797:29: runtime error: division by zero
[latm @ 0x9af9500] LATM packet size larger than maximum size 0x1fff=
1.8kbits/s speed=0.559x
av_interleaved_write_frame(): Invalid data found when processing input
[latm @ 0x9af9500] LATM packet size larger than maximum size 0x1fff
Error writing trailer of tmp_.loas: Invalid data found when processing
input
frame= 2 fps=0.0 q=-0.0 Lsize= 0kB time=00:00:00.33 bitrate=
2.2kbits/s dup=0 drop=1 speed=0.555x
video:291kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: unknown
[aac @ 0x9b19d40] Qavg: 0.067
Conversion failed!
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7995#comment:1>
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