Errors in Mpeg4VcmVideoEncoder Issues

[bassill]

Errors in Mpeg4VcmVideoEncoder Issues

[Ken98045]

I did compile your library and sample code. The same problems are there too. More Info follows:
x264vfw - SingleThreadEncoderWrapper line 103 - Encode frame returns 0 length for encoded data.
Xvid - Mpeg4VcmVidenEncoder.cs line 275 - some error in StartCompression - divide by 0

There may possibly be an issue with the versions of x264vfw and Xvid -- I downloaded them fresh today. It is conceivable that there was something I missed in both, but.... It is possible the the Xvid install needs to be their $20 "pro" version. I did not install that.

[baSSiLL]

Have you tried the "Zero Latency" setting of x264vfw? See issue #49

Xvid is known to produce the DivideByZero when running in 64 bits. I've never managed to work this around. Should work in 32 bits though.

[Ken98045]

Thank! That did it! BTW, is this documented somewhere? If not, could you. This cost me over 6+ hours trying to figure out if I was doing something wrong. From: Vasili Maslov Sent: Monday, August 22, 2022 7:08 AM To: baSSiLL/SharpAvi ***@***.***> Cc: Ken98045 ***@***.***>; Author ***@***.***> Subject: Re: [baSSiLL/SharpAvi] Errors in Mpeg4VcmVideoEncoder Issues (Issue #57) Have you tried the "Zero Latency" setting of x264vfw? See issue #49 <#49> Xvid is known to produce the DivideByZero when running in 64 bits. I've never managed to work this around. Should work in 32 bits though. — Reply to this email directly, view it on GitHub <#57 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACSQ24N37QGLMKX2K42ZNGTV2OCVNANCNFSM57EE63WA> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/ACSQ24KNCL7E7PGS6SOTC2LV2OCVNA5CNFSM57EE63WKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOJDOI7LQ.gif> Message ID: ***@***.*** ***@***.***> >

[baSSiLL]

It's mentioned in the docs https://bassill.github.io/SharpAvi/using-video-encoders.html#mpeg-4
as well as in comments for the Mpeg4VcmVideoEncoder class.

[Ken98045]

Thanks again! FYI: In my case the symptoms were somewhat different. It wouldn’t encode even one frame. I must have missed the tip though. Maybe I’m just more blind than I thought. I did start looking at the source code, but I didn’t look too deeply once I hit the exceptions. I know you warned against Divx. I saw that they had a new version so I thought I’d give it a try once I ran into a roadblock on vfw. From: Vasili Maslov ***@***.*** Sent: Monday, August 22, 2022 4:00 PM To: baSSiLL/SharpAvi Cc: Ken98045; Author Subject: Re: [baSSiLL/SharpAvi] Errors in Mpeg4VcmVideoEncoder Issues (Issue #57) It's mentioned in the docs https://bassill.github.io/SharpAvi/using-video-encoders.html#mpeg-4 as well as in comments for the Mpeg4VcmVideoEncoder class. — Reply to this email directly, view it on GitHub <#57 (comment)> , or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACSQ24OKFBLMPDXJEU676S3V2QA7ZANCNFSM57EE63WA> . You are receiving this because you authored the thread. <https://github.com/notifications/beacon/ACSQ24NOZST2BJGSO25N4ALV2QA7ZA5CNFSM57EE63WKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOJDU7U6A.gif> Message ID: ***@***.***>