#5089 closed defect (invalid)
AC EOB marker is absent in MXF DV
Reported by: | gausss | Owned by: | |
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Priority: | normal | Component: | undetermined |
Version: | unspecified | Keywords: | mxf dvvideo |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
The decoding for some MXF DV file results in multiple AC EOB marker is absent errors. The decoding error is visible in the output results in the form of colored squares and frames jumping. The attached file is a cut of the first 10 mb of the original file.
How to reproduce:
% ffmpeg -i input output.mp4 ffmpeg version N-75794-gd1c8368 built on gcc 5.2.0 for windows 64 bit, static lib.
Attachments (1)
Change History (10)
by , 9 years ago
follow-up: 2 comment:1 by , 9 years ago
follow-up: 5 comment:2 by , 9 years ago
Replying to gausss:
The attached file is a cut of the original file, cutted with ffmpeg itself.
Please provide a cut of the original file made with dd
(or the whole original file) do not cut files with FFmpeg.
comment:3 by , 9 years ago
Keywords: | mxf dvvideo added; Concealing bitstream errors AC EOB marker is absent removed |
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comment:4 by , 9 years ago
Sorry, I attached the byte-cut of the first 11 MB.
Please referr to the 4 pieces disk1 7zip attachment.
I add that the "AC EOB marker is absent" seems not to be the cause of the problem, but between second 2nd and 3rd, another error pops out.
Tested with the latest ffmpeg build version N-77234-g906c0b7:
[mxf @ 00000029ddfaab40] OPAtom misinterpreted as OP1a? KLV for edit unit 59 extending into next edit unit is not implemented. Update your FFmpeg vers ion to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented. [mxf @ 00000029ddfaab40] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing l ist. (ffmpeg-devel@ffmpeg.org) [dvvideo @ 00000029de07eb40] could not find dv frame profile Error while decoding stream #0:0: Error number -1 occurred
comment:5 by , 9 years ago
Replying to cehoyos:
Replying to gausss:
The attached file is a cut of the original file, cutted with ffmpeg itself.
Please provide a cut of the original file made with
dd
(or the whole original file) do not cut files with FFmpeg.
I've added disk1.7z attachment, that is a byte-cut of the first 11MB. thanks
comment:6 by , 9 years ago
Which player does not show artefacts for disk1.mxf uploaded to http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket5089/ ?
comment:7 by , 9 years ago
I've tested the file in VLC, and with mainconcept codecs; it shows artifacts also with this players.
At this point the file seems corrupted.
If I try to transcode the entire file (2.1GB MXF) I get a 100GB h.264 file full of timecode jumps!
Since I can't upload the entire file, and given that the file seems corrupted I close the ticket.
Thanks for support.
comment:8 by , 9 years ago
Resolution: | → invalid |
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Status: | new → closed |
comment:9 by , 9 years ago
There is no file size limit for the FTP server, you pasted the address above...
The attached file is a cut of the original file, cutted with ffmpeg itself.