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bavc / qctools

QCTools (Quality Control Tools for Video Preservation) is a free and open source software tool that helps users analyze and understand their digitized video files through use of audiovisual analytics and filtering. QCTools is funded by the National Endowment for the Humanities and the Knight Foundation, and is developed by the Bay Area Video Coalition.
http://www.bavc.org/qctools
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QCTools File Size Limit? #114

Closed glwhicks closed 8 years ago

glwhicks commented 8 years ago

I have found that files larger than around 30gb (or video content larger than 31 minutes) will not load into QCTools. Is this supposed to be the case? In addition to the 30 min video files, I have video files that are 60 & 90 mins and I can't use QCTools to analyze them. I have Version 0.7.2 installed.

dericed commented 8 years ago

QCTools is expected to handle larger files, but there could be a memory issue. What exactly happens when you put a larger file in? What type of file is it?

glwhicks commented 8 years ago

When I drop the larger file into QCTools (FF video codec 1; FFV1) nothing happens. It acts as if I haven't dropped a file into the program.

dericed commented 8 years ago

What version of QCTools? What OS?

glwhicks commented 8 years ago

I have Version 0.7.2 installed. Windows 7 Enterprise, 64 bit Operating System. My machine has 16gb of RAM

dericed commented 8 years ago

@glwhicks Can you retest with these http://utzig.org/files/QCTools_0.7.3_Win32.exe http://utzig.org/files/QCTools_0.7.3_Win64.exe

glwhicks commented 8 years ago

?Dave,

I'm testing this out today. I'll let you know the results.

-Glenn

Glenn Hicks Quality Control Specialist Indiana University-MDPI glwhicks@indiana.edu (812)320-7410

From: Dave Rice notifications@github.com Sent: Friday, April 1, 2016 10:29 AM To: bavc/qctools Cc: Hicks, Glenn William Subject: Re: [bavc/qctools] QCTools File Size Limit? (#114)

@glwhickshttps://github.com/glwhicks Can you retest with these http://utzig.org/files/QCTools_0.7.3_Win32.exe http://utzig.org/files/QCTools_0.7.3_Win64.exe

You are receiving this because you were mentioned. Reply to this email directly or view it on GitHubhttps://github.com/bavc/qctools/issues/114#issuecomment-204417293

glwhicks commented 8 years ago

?Dave,

Thanks for the latest update. I've installed and tested the software with files of different sizes. I've found that I can now view files around 45 mins in length (approximately 23gigs), the software crashes with files that are longer/bigger.

I have a theory. I think the issue may be the Matroska wrapper our files are in. QCTools seems to work fine with MP4 files that are longer(60mins, 90 mins), displaying audio graphs as well as playing back in real time. The .mkv files that do load into QCTools don't show the audio info and the playback is at a very slow, frame by frame rate.

I hope this is helpful to you.

Best,

Glenn Hicks

Glenn Hicks Quality Control Specialist Indiana University-MDPI glwhicks@indiana.edu (812)320-7410

From: Dave Rice notifications@github.com Sent: Friday, April 1, 2016 10:29 AM To: bavc/qctools Cc: Hicks, Glenn William Subject: Re: [bavc/qctools] QCTools File Size Limit? (#114)

@glwhickshttps://github.com/glwhicks Can you retest with these http://utzig.org/files/QCTools_0.7.3_Win32.exe http://utzig.org/files/QCTools_0.7.3_Win64.exe

You are receiving this because you were mentioned. Reply to this email directly or view it on GitHubhttps://github.com/bavc/qctools/issues/114#issuecomment-204417293

utzig commented 8 years ago

Hi Glenn,

I fixed an issue which might be the one that is causing QCTools to fail with big files for you. I created test versions of the installer which can be downloaded here:

http://utzig.org/files/QCTools_0.7.3alpha_Win32.exe http://utzig.org/files/QCTools_0.7.3alpha_Win64.exe

Both the Win32 and Win64 have the same fix applied so just choose the one which is adequate for your Windows installation.

dericed commented 8 years ago

Is this fix relevant to https://github.com/bavc/qctools/issues/100?

utzig commented 8 years ago

Yes, not sure about the memory usage but for the crash it might be.

glwhicks commented 8 years ago

?Fabio,

Success (at least tentatively)! I have successfully loaded files as long as 1hr 55mins into the software. I am able to see the pertinent graphic information. The playback is still at a very slow rate (almost frame by frame) and the audio levels are still not displayed, but I'm very encouraged at this development. I will keep you posted if I encounter the crash again. Thank you for your hard work.

-Glenn

Glenn Hicks Quality Control Specialist Indiana University-MDPI glwhicks@indiana.edu (812)320-7410

From: Fabio Utzig notifications@github.com Sent: Monday, May 16, 2016 10:34 AM To: bavc/qctools Cc: Hicks, Glenn William; Mention Subject: Re: [bavc/qctools] QCTools File Size Limit? (#114)

Yes, not sure about the memory usage but for the crash it might be.

You are receiving this because you were mentioned. Reply to this email directly or view it on GitHubhttps://github.com/bavc/qctools/issues/114#issuecomment-219440864

dericed commented 8 years ago

Thanks for testing @glwhicks, the playback issue should hopefully be addressed in a refactoring of the player to use libmpv.

dericed commented 8 years ago

Hi @glwhicks, the audio issue is noted here https://github.com/bavc/qctools/issues/118 and playback is noted in https://github.com/bavc/qctools/issues/84, so I am closing this issue.