[FFmpeg-trac] #9908(ffmpeg:new): Trigger assertion during converting mp4
FFmpeg
trac at avcodec.org
Tue Sep 6 19:28:56 EEST 2022
#9908: Trigger assertion during converting mp4
------------------------------------+----------------------------------
Reporter: microfuzz | Owner: (none)
Type: defect | Status: new
Priority: important | Component: ffmpeg
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+----------------------------------
Description changed by microfuzz:
Old description:
> Summary of the bug:
>
> I triggered an assertion failure during converting the mp4 file.
> The sample can be accessed at:
> https://github.com/zr950624/Bug_submit/blob/main/crash1.mp4
> How to reproduce:
> {{{
> % ./ffmpeg -f mp4 -i crash1.mp4 -f mxf aa37 -y
>
> Full output log:
> /home/microfuzz/FFmpeg/ffmpeg -f mp4 -i ~/ffmpeg_crashes/crash1.mp4 -f
> mxf aa37 -y
> ffmpeg version git-2022-09-05-8913539 Copyright (c) 2000-2022 the FFmpeg
> developers
> built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
> configuration:
> --cc=/home/microfuzz/MicroFuzz/benchmarks/fuzzers/AFLplusplus/afl-clang
> --cxx=/home/microfuzz/MicroFuzz/benchmarks/fuzzers/AFLplusplus/afl-
> clang++
> libavutil 57. 36.101 / 57. 36.101
> libavcodec 59. 42.104 / 59. 42.104
> libavformat 59. 30.101 / 59. 30.101
> libavdevice 59. 8.101 / 59. 8.101
> libavfilter 8. 48.100 / 8. 48.100
> libswscale 6. 8.104 / 6. 8.104
> libswresample 4. 9.100 / 4. 9.100
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] multiple fourcc not supported
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] overread end of atom 'stsd' by
> 1076899745 bytes
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] stream 0, timescale not set
> [NULL @ 0x4b4fc40] Codec type or id mismatches
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Failed to open codec in
> avformat_find_stream_info
> [NULL @ 0x4b4fc40] Codec type or id mismatches
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Failed to open codec in
> avformat_find_stream_info
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Could not find codec parameters for
> stream 1 (Audio: mpeg2video (mp4a / 0x6134706D), 12336 Hz, 12336
> channels): unspecified sample format
> Consider increasing the value for the 'analyzeduration' (0) and
> 'probesize' (5000000) options
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
> '/home/microfuzz/ffmpeg_crashes/crash1.mp4':
> Metadata:
> major_brand : 0000
> minor_version : 808464432
> compatible_brands: 000
> creation_time : 1995-08-15T05:27:12.000000Z
> Duration: 00:04:16.00, start: 0.000000, bitrate: 0 kb/s
> Stream #0:0[0x1]: Audio: pcm_u8 (raw / 0x20776172), 12328 Hz, 255
> channels, u8, 25149 kb/s (default)
> Metadata:
> handler_name : 0000000000000
> vendor_id : [0][0][0][0]
> Stream #0:1[0x1](lap): Audio: mpeg2video (mp4a / 0x6134706D), 12336 Hz,
> 12336 channels (default)
> Metadata:
> creation_time : 2014-02-23T23:09:36.000000Z
> handler_name : 0000000000000
> vendor_id : [0][0]0[0]
> Side data:
> unknown side data type 24 (84 bytes)
> Stream mapping:
> Stream #0:0 -> #0:0 (pcm_u8 (native) -> pcm_s16le (native))
> Press [q] to stop, [?] for help
> [pcm_u8 @ 0x4b533c0] Multiple frames in a packet.
> [auto_aresample_0 @ 0x4ba4680] [SWR @ 0x4ba47c0] Input channel layout
> "255 channels" is invalid or unsupported.
> [auto_aresample_0 @ 0x4ba4680] [SWR @ 0x4ba47c0] Output channel layout
> "255 channels" is invalid or unsupported.
> Assertion ctx->channels == out->ch_count failed at
> libswresample/audioconvert.c:202
> [1] 255437 abort ./ffmpeg -f mp4 -i ~/ffmpeg_crashes/crash1.mp4 -
>
> ffmpeg version:
> ffmpeg version git-2022-09-05-8913539 Copyright (c) 2000-2022 the FFmpeg
> developers
> built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
>
> built on:
> Distributor ID: Ubuntu
> Description: Ubuntu 18.04.6 LTS
> Release: 18.04
> Codename: bionic
> }}}
> Patches should be submitted to the ffmpeg-devel mailing list and not this
> bug tracker.
New description:
Summary of the bug:
I triggered an assertion failure during converting the mp4 file.
The sample is attached below.
How to reproduce:
{{{
% ./ffmpeg -f mp4 -i crash1.mp4 -f mxf aa37 -y
Full output log:
/home/microfuzz/FFmpeg/ffmpeg -f mp4 -i ~/ffmpeg_crashes/crash1.mp4 -f mxf
aa37 -y
ffmpeg version git-2022-09-05-8913539 Copyright (c) 2000-2022 the FFmpeg
developers
built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
configuration:
--cc=/home/microfuzz/MicroFuzz/benchmarks/fuzzers/AFLplusplus/afl-clang
--cxx=/home/microfuzz/MicroFuzz/benchmarks/fuzzers/AFLplusplus/afl-clang++
libavutil 57. 36.101 / 57. 36.101
libavcodec 59. 42.104 / 59. 42.104
libavformat 59. 30.101 / 59. 30.101
libavdevice 59. 8.101 / 59. 8.101
libavfilter 8. 48.100 / 8. 48.100
libswscale 6. 8.104 / 6. 8.104
libswresample 4. 9.100 / 4. 9.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] multiple fourcc not supported
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] overread end of atom 'stsd' by
1076899745 bytes
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] stream 0, timescale not set
[NULL @ 0x4b4fc40] Codec type or id mismatches
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Failed to open codec in
avformat_find_stream_info
[NULL @ 0x4b4fc40] Codec type or id mismatches
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Failed to open codec in
avformat_find_stream_info
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x4b44480] Could not find codec parameters for
stream 1 (Audio: mpeg2video (mp4a / 0x6134706D), 12336 Hz, 12336
channels): unspecified sample format
Consider increasing the value for the 'analyzeduration' (0) and
'probesize' (5000000) options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'/home/microfuzz/ffmpeg_crashes/crash1.mp4':
Metadata:
major_brand : 0000
minor_version : 808464432
compatible_brands: 000
creation_time : 1995-08-15T05:27:12.000000Z
Duration: 00:04:16.00, start: 0.000000, bitrate: 0 kb/s
Stream #0:0[0x1]: Audio: pcm_u8 (raw / 0x20776172), 12328 Hz, 255
channels, u8, 25149 kb/s (default)
Metadata:
handler_name : 0000000000000
vendor_id : [0][0][0][0]
Stream #0:1[0x1](lap): Audio: mpeg2video (mp4a / 0x6134706D), 12336 Hz,
12336 channels (default)
Metadata:
creation_time : 2014-02-23T23:09:36.000000Z
handler_name : 0000000000000
vendor_id : [0][0]0[0]
Side data:
unknown side data type 24 (84 bytes)
Stream mapping:
Stream #0:0 -> #0:0 (pcm_u8 (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[pcm_u8 @ 0x4b533c0] Multiple frames in a packet.
[auto_aresample_0 @ 0x4ba4680] [SWR @ 0x4ba47c0] Input channel layout "255
channels" is invalid or unsupported.
[auto_aresample_0 @ 0x4ba4680] [SWR @ 0x4ba47c0] Output channel layout
"255 channels" is invalid or unsupported.
Assertion ctx->channels == out->ch_count failed at
libswresample/audioconvert.c:202
[1] 255437 abort ./ffmpeg -f mp4 -i ~/ffmpeg_crashes/crash1.mp4 -
ffmpeg version:
ffmpeg version git-2022-09-05-8913539 Copyright (c) 2000-2022 the FFmpeg
developers
built with clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
built on:
Distributor ID: Ubuntu
Description: Ubuntu 18.04.6 LTS
Release: 18.04
Codename: bionic
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9908#comment:1>
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