Before reporting a bug, please consider the following:
ffmpeg -i input.mov
-an -vcodec foo output.avi
")ffmpeg -v 9 -loglevel 99 -i
followed by the name of your input file
(copy/pasted from the console, including the banner that indicates
version and configuration options), paste ffplay output
only if your problem is not reproducible with ffmpeg.-report
option or define the
FFREPORT
environment variable (to any value) to get the exact
command line and the full verbose console output in a file named
ffmpeg-*.log
in the current directory.-report
option is recent, it will not help
tracking regressions in old revisions.
gdb
output,
backtrace and disassembly, and if possible the valgrind
output,
using the the ffmpeg_g
debug binary.
For gdb
, proceed as follows:
gdb ffmpeg_g
In gdb
, type 'r' for run, along with the rest of the
ffmpeg
command line:
r <rest of command line>Alternatively, you can run
gdb --args ffmpeg_g <rest of command
line>
and just type 'r' at the gdb
prompt.
When gdb
encounters its problem, run the following commands and
copy/paste the output into your bug report:
bt disass $pc-32,$pc+32 info all-registers
With older gdb
versions, use disass $pc-32 $pc+32
.
For valgrind
, run the following command and copy/paste the
output into your bug report:
valgrind ffmpeg_g <rest of command line>
Once you have gathered this information, you can submit a report to the FFmpeg bug tracker.
Note, you must register there first before you can submit a report.
You should provide all information so that anyone can reproduce the bug.
Please do not report your problem on the developer mailing list:
Only send bug reports there if you also intend to provide a fix.
The developers may ask you to provide a sample media file illustrating your problem. In this case, please follow these steps:
dd if=sample-file of=small-sample-file bs=1024 count=10000and then upload small-sample-file rather than sample-file
h264_green_tint.mov
or
block_artifacts_after_seeking.mkv
. We already have plenty of bug.rm
and sample.avi
.
Movie files which have been compressed (rar,7z,gzip,...) will be
deleted without being examined unless they are raw RGB/YUV/PCM.
Furthermore movie files uploaded to services like rapidshare or
any other similar service will be ignored. We are not willing to spend our
time fighting with this ridiculous, bloated and spam-filled crap.