CV_CAP_PROP_POS_FRAMES problem (Bug #225)

Added by Georgios Petrou almost 15 years ago. Updated over 12 years ago.

Status:Done Start date:
Priority:High Due date:
Assignee:- % Done:

0%
Category:highgui-video
Target version:-
Affected version: Operating System:
Difficulty: HW Platform:
Pull request:

Description

When setting this property in SVN version i can't get the right frame. It moves from 0 to 250, 500 and so on.
However in the version 2.0 it works fine.
The video codec in 4CC is DX50 (DivX I guess).

Associated revisions

Revision 09be997e
Added by Vadim Pisarevsky about 12 years ago

Merge pull request #225 from pieleric:2.4

Revision 4b0e9185
Added by Vadim Pisarevsky over 10 years ago

Merge pull request #225 from vpisarev:fix_upnp_perf

History

#1
Updated by guan-jhih chen almost 15 years ago

I meet the same problems too.
For many types of video codecs.

#2
Updated by Georgios Petrou almost 15 years ago

The problem remains in the last SVN revision (2999)
I forgot to mention I am using windows vista.

#3
Updated by Benoit R almost 15 years ago

Have the same problem, with more type of videos.

#4
Updated by He Yang over 14 years ago

Has the same problem, I have a video file which has total 389 frame
It can correctly set during 0-385, when I try to set frame to 386-389
It will show
HIGHGUI ERROR: AVI EROOR: can't not seek to position 0.0000

I know there is key-frame in avi file. However, It should be process by api transparently.

#5
Updated by Georgios Petrou over 14 years ago

The problem still remains at the current SVN version (3584)
I tried it both at Vista and Windows 7.

I managed to solve the problem by replacing the following line

result = cvCreateFileCapture_Win32 (filename);

with the line

result = cvCreateFileCapture_VFW (filename);

in the file cap.cpp

I think the cvCreateFileCapture_Win32 uses ffmpeg which has some kind of problem I haven't manage to find yet.

#6
Updated by anonymous - over 14 years ago

Same problem here on Windows 7.

#7
Updated by Georgios Petrou about 14 years ago

The problem seems to have been solved in the 2.2 version for me. I have tested the zip version of the library not the VS2010 installer. But the https://code.ros.org/svn/opencv/branches/2.2 does not work again. Can someone confirm this?

#8
Updated by Vadim Pisarevsky over 13 years ago

The problem should have been solved now. If not, please, reopen the ticket.

  • Status changed from Open to Done
  • (deleted custom field) set to fixed

#9
Updated by Vadim Pisarevsky over 13 years ago

I mean, the problem is fixed in trunk version, which should become OpenCV v2.3 in a few days.

#10
Updated by Andrey Kamaev over 12 years ago

  • Category changed from highgui-images to highgui-video

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