[libav-bugs] [Bug 964] New: AVConv can't fix incompleted MKVs

bugzilla at libav.org bugzilla at libav.org
Sat Sep 17 12:28:28 CEST 2016


https://bugzilla.libav.org/show_bug.cgi?id=964

            Bug ID: 964
           Summary: AVConv can't fix incompleted MKVs
           Product: Libav
           Version: git HEAD
          Hardware: X86
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: ---
         Component: libavformat
          Assignee: bugzilla at libav.org
          Reporter: ilkertezcan at gmail.com

Created attachment 607
  --> https://bugzilla.libav.org/attachment.cgi?id=607&action=edit
AVconv's full verbose report

Dear LibAV Developers,

My sample file is actually incompleted. I only played some scenes speficic
intervals when streaming playback on a media player application. Therefore,
need two fixing for the temp stream file. 

1) Removing "00" gaps/full-zero bytes.
2) Timestamp (True length is only played scenes)

AVConv halts on the very first error without fixing.

AVConv -v 9 -loglevel 99 -i
"incompleted_video_only_specific_times_played_but_cannot_fix.mkv" -c:v copy
-c:a copy output.mkv

What about other tools?

FFmpeg can fix but the output video's timestamp is remains same original video. 

VLC is broke timestamps rather than fix.

Meteorite (MKV repair engine) can fix but it' stuck at
%99.9.(http://www.mkvrepair.com)

MEncoder can fix, even if it can timestamp! So then why am I using it? Because
it cannot always detect format of audio codec, want to -fafmttag switches.

P.S. 1: I added AVCon's full-report as the attachment.
P.S. 2: I uploaded a sample file to LibAV's FTP server. The filename:
incompleted_video_only_specific_times_played_but_cannot_fix.zip

Best regards...

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