Re: [Mjpeg-users] yuvkineco/mpeg2enc - Out of sync after 100 minutes?
Well, I've finally burned my first full-length DVD with pulldown. Thanks again for the quick response! And thanks to a patch I found against ffmpeg I now have ac3 audio working as well. So all the glitches I had are gone now. Time to start converting all my tapes over to DVD now :-) -- Ray On Mon, 30 Jun 2003 22:04:15 -0500 Ray Cole [EMAIL PROTECTED] wrote: Say, that worked! Thanks! I haven't actually performed an mpeg2enc on it yet (didn't want to wait that long to know if the patch was going to work or not), but the output from -c looks perfect. -- Ray On Mon, 30 Jun 2003 23:28:39 +0900 Kawamata/Hitoshi [EMAIL PROTECTED] wrote: Hi, Ray. Thank you bug report. Ray Cole [EMAIL PROTECTED] writes: I've been using yuvkineco/mpeg2enc for pulldown. It stays perfectly in sync until it reaches around 100 minutes into the video. Then it gets WAY out of sync. It isn't slowly getting out of sync at 100, it just suddenly gets out of sync. Any ideas? If I use shorter videos that are less than 100 minutes I don't ever seem to see the problem. Certainly that could be coincidence... This seems intermediate integer value overflow. I'm sorry but now I have no time to test, Could you (or anybody) test this patch? --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] yuvkineco/mpeg2enc - Out of sync after 100 minutes?
Hi, Ray. Thank you bug report. Ray Cole [EMAIL PROTECTED] writes: I've been using yuvkineco/mpeg2enc for pulldown. It stays perfectly in sync until it reaches around 100 minutes into the video. Then it gets WAY out of sync. It isn't slowly getting out of sync at 100, it just suddenly gets out of sync. Any ideas? If I use shorter videos that are less than 100 minutes I don't ever seem to see the problem. Certainly that could be coincidence... This seems intermediate integer value overflow. I'm sorry but now I have no time to test, Could you (or anybody) test this patch? yuvkineco.c.diff Description: Binary data
Re: [Mjpeg-users] yuvkineco/mpeg2enc - Out of sync after 100 minutes?
It happens right on a 32-bit boundary...if I take the 24fps frame number 143352 (which is the frame where it starts getting off) and multiple it by 3 (I'm using 29.97 frame rate, or 3/1001) I get just over 256^4, so I do believe this to be an integer overflow problem. So I believe the patch hitoshi.kawamata will do the trick. I'll cross my fingers :-) -- Ray On Mon, 30 Jun 2003 19:02:54 -0500 Ray Cole [EMAIL PROTECTED] wrote: Attached is the output. See around 1:40:00 where it starts to get out of sync. -- Ray On Mon, 30 Jun 2003 00:16:29 -0400 [EMAIL PROTECTED] wrote: I've been using yuvkineco/mpeg2enc for pulldown. It stays perfectly in sync until it reaches around 100 minutes into the video. Then it gets WAY out of sync. It isn't slowly getting out of sync at 100, it just suddenly gets out of sync. Any ideas? Use yuvkineco -C frames.lst in your pipeline (instead of just yuvkineco) to get a list of all the frames and what yuvkineco did with them. Another thing you might try is to cut out just the offending part and run it through yuvkineco to see if it's the content or the position that's the problem. I went through the yuvkineco code recently to add 4:1:1 support (to be posted shortly) and I didn't see any obvious place where something might overflow after 100 minutes (but, of course, I wasn't looking either). Dan --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] yuvkineco/mpeg2enc - Out of sync after 100 minutes?
Say, that worked! Thanks! I haven't actually performed an mpeg2enc on it yet (didn't want to wait that long to know if the patch was going to work or not), but the output from -c looks perfect. -- Ray On Mon, 30 Jun 2003 23:28:39 +0900 Kawamata/Hitoshi [EMAIL PROTECTED] wrote: Hi, Ray. Thank you bug report. Ray Cole [EMAIL PROTECTED] writes: I've been using yuvkineco/mpeg2enc for pulldown. It stays perfectly in sync until it reaches around 100 minutes into the video. Then it gets WAY out of sync. It isn't slowly getting out of sync at 100, it just suddenly gets out of sync. Any ideas? If I use shorter videos that are less than 100 minutes I don't ever seem to see the problem. Certainly that could be coincidence... This seems intermediate integer value overflow. I'm sorry but now I have no time to test, Could you (or anybody) test this patch? --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] yuvkineco/mpeg2enc - Out of sync after 100 minutes?
I've been using yuvkineco/mpeg2enc for pulldown. It stays perfectly in sync until it reaches around 100 minutes into the video. Then it gets WAY out of sync. It isn't slowly getting out of sync at 100, it just suddenly gets out of sync. Any ideas? Use yuvkineco -C frames.lst in your pipeline (instead of just yuvkineco) to get a list of all the frames and what yuvkineco did with them. Another thing you might try is to cut out just the offending part and run it through yuvkineco to see if it's the content or the position that's the problem. I went through the yuvkineco code recently to add 4:1:1 support (to be posted shortly) and I didn't see any obvious place where something might overflow after 100 minutes (but, of course, I wasn't looking either). Dan --- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa0016ave/direct;at.asp_061203_01/01 ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
