Extract AVI Frames

[saraswathisrinath]

Hi

i'm using this code - Extracting AVI Frames.

Problem is, code is not working for all avi files. What is the reason?

[Igor Vartanov]

You can't be serious. How could we know what the reason is? You have to provide more details about the files that work fine and the files that do not.

First thing you should find out if the problem files are playable at all. Second, if those are able to rewind/fastforward.

[saraswathisrinath]

You can't be serious. How could we know what the reason is? You have to provide more details about the files that work fine and the files that do not.

First thing you should find out if the problem files are playable at all. Second, if those are able to rewind/fastforward.

i checked files are playable. i tested with small avi files. so both files are not able to rewind/fastforward.

Kindly find the attached project.

i run my project using this file AVI Video Files, . Working good,

Dimention: 320*240
Length: 102 frames
Max bytes per second : 230032
samples per second : 14
streams: 1
file type: 8055788

clock.avi. Working good, got 12 frames(bmp files).

Dimention: 321x321
Length: 12 frames
Max bytes per second : 7100 
samples per second : 1
streams: 2
file type: 2681620

But some video files running properly. when i extract this by frames then the
msg display

Dimention: 1280*720
Length: 24 frames
Max bytes per second 4976640
samples per second : 24
streams: 2
file type: 4189556

video taken by camera,

Dimention: 320x120
Length: 81frames
Max bytes per second : 0
samples per second : 29
streams: 1
file type: 18214892

both files are not running. break point at below lines,

BOOL CreateFromPackedDIBPointer(LPBYTE pDIB, int iFrame)
{
    ASSERT(pDIB!=NULL);
}

[saraswathisrinath]

PGETFRAME pFrame;
    pFrame = AVIStreamGetFrameOpen(pStream, 
           NULL/*(BITMAPINFOHEADER*) AVIGETFRAMEF_BESTDISPLAYFMT*/ /*&bih*/);
    if(!pFrame ) MessageBox(0, "AVIStreamGetFrameOpen() Function Failed.", "", MB_OK);

AVIStreamGetFrameOpen() - Returns a GetFrame object that can be used with the AVIStreamGetFrame function. If the system cannot find a decompressor that can decompress the stream to the given format, or to any RGB format, the function returns NULL.

Here AVIStreamGetFrameOpen function returns NULL. so only i'm getting error. How can i solve this issue.

its true. downloading the latest xvid codec, recover from this problem?

[Igor Vartanov]

You need to go some other way. Using IMediaDet interface maybe, or creating your own directshow filter. Or switching to other technology like ffmpeg, gstreamer, opencv, etc. Will depend on your goals and requirements.