vcs

  • Status Researching
  • Percent Complete
    0%
  • Task Type Bug Report
  • Category General
  • Assigned To
    Toni Corvera
  • Operating System
  • Severity High
  • Priority Defer
  • Reported Version 1.0.6b (1.4.1)
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: vcs
Opened by Toni Corvera - 02.03.2010
Last edited by Toni Corvera - 18.03.2010

FS#32 - vcs gets stuck on first capture (or during probe)

Fails on some files (gets stuck forever while capturing the first frame).

Happens often with Matroska. 1.0.7a introduced a workaround (-Wo) with ffmpeg’s argument order that worked with other file types.

Project Manager
Toni Corvera commented on 05.03.2010 04:24

Might happen if ffmpeg chokes on a file. E.g. I came a cross a broken file, redirection stderr output went like:

$ vcs -O stderr=/dev/stderr brokenfile.avi
[...]
Error while decoding stream #0.0
[mpeg4 @ 0x13e6980]ac-tex damaged at 9 15
[mpeg4 @ 0x13e6980]Error at MB: 504
[mpeg4 @ 0x13e6980]concealing 343 DC, 343 AC, 343 MV errors
[mpeg4 @ 0x13e6980]ac-tex damaged at 0 7
[mpeg4 @ 0x13e6980]Error at MB: 231
[mpeg4 @ 0x13e6980]illegal mb_num in video packet (1023 768) 
[mpeg4 @ 0x13e6980]concealing 614 DC, 614 AC, 614 MV errors
[mpeg4 @ 0x13e6980]ac-tex damaged at 3 6
[mpeg4 @ 0x13e6980]Error at MB: 201
[mpeg4 @ 0x13e6980]illegal mb_num in video packet (1023 768) 
[mpeg4 @ 0x13e6980]concealing 643 DC, 643 AC, 643 MV errors
[...]

Not sure if that's the same bug.
The file was unplayable.

Project Manager
Toni Corvera commented on 18.03.2010 20:05

With the new probing stuff this can happen before capturing.

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