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Mar 26 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

It would be nice if Blender could detect the situation and notify the user (maybe offer to carry out the suggested solution).

Mar 26 2016, 2:37 AM · Audio, BF Blender

Mar 20 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

Re-encoding with these formats were the only that gave issue with ffmpeg via CLI:

Mar 20 2016, 10:50 PM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

The best/quickest/easiest way to duplicate the bug is

Mar 20 2016, 6:53 AM · Audio, BF Blender

Mar 18 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

I tried re-encoding before blederizing and the result is the same. Audio and/or video drifting. (after blender's VSE conversion)

Mar 18 2016, 9:17 PM · Audio, BF Blender

Mar 17 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

It seems that this problem is pretty much Blender-specific. I'm currently looking at/around https://wiki.blender.org/index.php/Dev:Ref/GoogleSummerOfCode/2005/FFMpeg_Integration for insight.

Mar 17 2016, 11:44 PM · Audio, BF Blender

Mar 16 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

I get noticeable drift, when rendering (with NLE exclusively) the 20 FPS WMV sample from above, to any output via Blender.

Mar 16 2016, 10:55 PM · Audio, BF Blender

Mar 15 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

TYPO: All of the above "outfile.wmv" were actually "outfile.avi"... except for the very first one.

Mar 15 2016, 12:37 AM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

ffmpeg 2.8.4 (win64 static):

Mar 15 2016, 12:34 AM · Audio, BF Blender

Mar 13 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

Sorry, forgot to test the identical (from Blender) on the command-line:

Mar 13 2016, 10:35 AM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

All of these work fine; Audio/Video stays in sync and framerate remains correct (bps varies);
They all keep the correct length (9m:51s):

$ ffmpeg -i infile.wmv -vcodec copy -acodec copy outfile.wmv
$ ffmpeg -i infile.wmv -vcodec copy -acodec pcm_s16le -ac 1 -ar 44100 outfile.mkv
#WARNING: The following command will produce a huge file...
$ ffmpeg -i infile.wmv -vcodes huffyuv -acodec pcm_s16le -ac 1 -ar 44100 outfile.mkv
$ ffmpeg -i infile.wmv -vcodec libx264 -ar 44100 outfile.mkv
$ ffmpeg -i infile.wmv -vcodec libx264 outfile.mkv
$ ffmpeg -i infile.wmv -vcodec libx264 -acodec aac -b:a 192k outfile.mkv
$ ffmpeg -i infile.wmv -vcodec libx264 -ar 48000 outfile.mkv

Mar 13 2016, 10:14 AM · Audio, BF Blender

Mar 11 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

Cool. Nice work! That doesn't sound like a bug, per se, because it makes sense (logically).

Mar 11 2016, 10:07 PM · Audio, BF Blender

Mar 5 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

^ The .wmv and .blend file are referenced from my C:\temp\ folder (in case you need to duplicate that structure)

Mar 5 2016, 2:05 AM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

I've created a "wmv.blend" project file that should reflect the (mostly default) settings that I am trying to use to produce this 20 FPS video...

Mar 5 2016, 2:03 AM · Audio, BF Blender

Feb 29 2016

vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

I'm experiencing the same exact problem in version 2.77 RC1.

Feb 29 2016, 8:28 PM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

The particular workflow, that I am using, doesn't utilize a .blend file... unless you would like me to somehow export one that includes my specific settings. Others seem to be experiencing a similar/exact problem, as well, with no mention of WMV:
http://blender.stackexchange.com/a/13679/22331

Feb 29 2016, 7:12 PM · Audio, BF Blender
vegan (vegAnaize) added a comment to T47627: Audio will not keep sync with video at 20 FPS..

I've tried it with & without AV-sync. I also tried Frame Drop.

Feb 29 2016, 4:46 AM · Audio, BF Blender
vegan (vegAnaize) created T47627: Audio will not keep sync with video at 20 FPS..
Feb 29 2016, 3:58 AM · Audio, BF Blender

Dec 22 2015

vegan (vegAnaize) changed the status of T47021: ALT+LMB not providing MMB functionality from Invalid to Resolved.

I finally see what you mean about the redundancy. And the new text reads nicely.

Dec 22 2015, 8:45 PM · BF Blender
vegan (vegAnaize) added a comment to T47021: ALT+LMB not providing MMB functionality.

I meant replacing the text at:
https://www.blender.org/manual/preferences/input.html#mouse

Dec 22 2015, 7:14 AM · BF Blender

Dec 21 2015

vegan (vegAnaize) added a comment to T47021: ALT+LMB not providing MMB functionality.

I would say that references to [ALT]+[LMB] are fine. It is just the fact that there is no mention of enabling this alternative setting in the current documentation:

Dec 21 2015, 9:45 PM · BF Blender

Dec 20 2015

vegan (vegAnaize) added a comment to T47021: ALT+LMB not providing MMB functionality.

You are correct. Thank you. I couldn't find that anywhere, in any documentation. But everything is written with the assumption that the "Emulate 3 Button Mouse" option is pre-selected.

Dec 20 2015, 7:19 PM · BF Blender
vegan (vegAnaize) created T47021: ALT+LMB not providing MMB functionality.
Dec 20 2015, 8:21 AM · BF Blender