[FFmpeg-trac] #3745(avcodec:new): error with libopenjpeg encoding
FFmpeg
trac at avcodec.org
Fri Jun 27 23:15:02 CEST 2014
#3745: error with libopenjpeg encoding
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Reporter: dericed | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: libopenjpeg | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by dericed):
No, I don't think this can be fixed in ffmpeg but is with openjpeg. There
is an associated request here http://trac.ffmpeg.org/ticket/2866 to
request an option for ffmpeg to read what it is encoding to verify
losslessness, similar to the --verify option in the flac utility. Thanks
to framemd5 I was able to find it.
I tested the j2k you sent with openjpeg 2.1.0 with `opj_decompress -i
~/Downloads/out17.j2k -o image.tif`, which decoded correctly. I then
tested with 1.5.1 and got
{{{
j2k_to_image -i out17.j2k -o image.png
[ERROR] 00000000: expected a marker instead of 0
ERROR -> j2k_to_image: failed to decode image!
}}}
Next I'm off to see if ffmpeg will build with openjpeg 2.1.0.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3745#comment:7>
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