Error muxing a packet when limit file size parameter is set

[Jan]

Summary of the bug:

FFmpeg returns error code 187 when copying video file and limit file size parameter is set. The output ends with:

[out#0/mp4 @ 0x391da00] Error muxing a packetme=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
frame= 1563 fps=0.0 q=-1.0 Lsize=   49119kB time=00:01:04.19 bitrate=6268.6kbits/s speed= 236x    
video:48063kB audio:1012kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.089060%
Conversion failed!

OS: CentOS Stream release 8

How to reproduce:

% ffmpeg -ss 1.0 -i the_simpsons_movie_trailer.mp4 -c copy -fs 50000000 -reset_timestamps 1 -y test.mp4

 /opt/ffmpeg/bin/ffmpeg -version
ffmpeg version git-2023-04-20-adeb5b6 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 8 (GCC)
configuration: --prefix=/opt/ffmpeg-20230421 --enable-libx264 --enable-libx265 --enable-gpl --extra-ldflags='-L/opt/x264/lib -L/opt/x265/lib' --extra-cflags='-I/opt/x264/lib -I/opt/x265/lib' --pkg-config-flags=--static --extra-libs=-lpthread
libavutil      58.  6.100 / 58.  6.100
libavcodec     60. 10.100 / 60. 10.100
libavformat    60.  5.100 / 60.  5.100
libavdevice    60.  2.100 / 60.  2.100
libavfilter     9.  5.100 /  9.  5.100
libswscale      7.  2.100 /  7.  2.100
libswresample   4. 11.100 /  4. 11.100
libpostproc    57.  2.100 / 57.  2.100

built on 2023-04-21

Happens on any h264 video I have, tested for example on this video:

​https://dvdloc8.com/clip.php?movieid=12167&clipid=2

I have older FFmpeg builds on other servers:

• master 2022-12-07 - works
• master 2023-01-03 - works
• master 2023-02-15 - fails
• master 2023-03-10 - fails

Fails also on my Arch Linux:

ffmpeg version n6.0 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12.2.1 (GCC) 20230201

When I remove the -fs parameter, everything works fine.

[Jan]

Command output

[quinkblack]

Here is my patch:

​http://ffmpeg.org/pipermail/ffmpeg-devel/2023-April/308755.html

[Jan]

The patch works. Thanks.

[Balling]

Fixed in b56aca9b42411da444a0b267ea1dd183cbb4fbf7.