how to deal with wmv errors

[exekutive]

I have some WMV videos that only play in Windows Media Player. Nothing else ... not VLC, IINA, mplayer, etc.
Handbrake refuses to open it.
AVIdemux refuses to open it.

sample of errors I get:

[vc1 @ 0x7fc9b8907a40] Error in WVC1 interlaced frame
Error while decoding stream #0:1: Invalid data found when processing input
...
[mp4 @ 0x7fc9b8908080] Non-monotonous DTS in output stream 0:1; previous: 12249278, current: 12247998; changing to 12249279. This may result in incorrect timestamps in the output file.

I've tried utilities like ASFBIN

They play perfectly in WMP though.

Is there any hope for transcoding these?

[El Heggunte]

Give a try to Avisynth with DirectShowSource().
But first use GraphStudioNext for generating the .GRF files which will be opened by DirectShowSource().

http://avisynth.nl/index.php/Importing_media#How_do_I_use_GraphEdit_to_make_graphs_of_...in_AviSynth.3F

Wrongly-muxed .WMVs are very-common, sadly.

[exekutive]

OK graphstudio is able to play the file without any changes. I'm a bit lost what to do next.

[ProWo]

You could try a simple remux with clever Ffmpeg-GUI.

[El Heggunte]

You could try a simple remux with clever Ffmpeg-GUI.

Only if ffplay plays the video without glitches. Otherwise ffmpeg will fail at producing a correct remux.

[jagabo]

AviSynth's DirectShowSource() should work since it uses the same mechanism as WMP, GraphStudioNext, GraphEdt, etc.

[Selur]

Hardware decoding might help for other ffmpeg based tools aside from ffplay.

[exekutive]

You could try a simple remux with clever Ffmpeg-GUI.

yes you've already suggested it to me a few times before. Unfortunately, ffmpeg won't touch it either. I get the errors I quoted above (Error in WVC1 interlaced frame ).

Still waiting for that Mac version though.

[exekutive]

AviSynth's DirectShowSource() should work since it uses the same mechanism as WMP, GraphStudioNext, GraphEdt, etc.

How do I do that? I have no idea what avisynth is or does. Will it transcode my video?

[poisondeathray]

AviSynth's DirectShowSource() should work since it uses the same mechanism as WMP, GraphStudioNext, GraphEdt, etc.

How do I do that? I have no idea what avisynth is or does. Will it transcode my video?

Avisynth is a script based frameserver and processing tool.

You need to feed the .avs to another program that accepts avs scripts, such as vdub/vdub2, or ffmpeg, or some encoder like x264/x265

To the receiving program, the avs script "looks like" uncompressed video and audio


Delete the video renderer for the video, so the last pin is unconnected save the graph e.g "video.grf" . Repeat for the audio e.g. audio.grf

Install avisynth and write a script in notepad , or you can use a script editor like avspmod

vid = DirectShowSource("D:\video.grf", audio=false)
aud = DirectShowSource("D:\audio.grf", video=false)
AudioDub(vid, aud)

save the script, with .avs extension (if you had .txt, change it to .avs) . Use that as input to one of those encoders

[jagabo]

You can probably use a simpler script like:

DirectShowSource("filename.wmv")

I believe you can use StaxRip which uses AviSynth. So you don't even have to write your own script. It should also include everything else you need to reencode the video.

[exekutive]

I believe you can use StaxRip which uses AviSynth.

Thank you. This was pretty much a one-click solution.

I'm really surprised and disappointed that the more well-known software isn't up to the task.

[El Heggunte]

I believe you can use StaxRip which uses AviSynth.

Thank you. This was pretty much a one-click solution.

I'm really surprised and disappointed that the more well-known software isn't up to the task.

It's because the ASF container (improperly renamed to ".WMV" by Microsoft) is a P.I.T.A.
In the end, ASF is just a glorified AVI (as the author of VirtualDub said in 2000) which happened to be even worse (misbehaving) than AVI itself.

[exekutive]

can I decomb using staxrip?

[exekutive]

It's because the ASF container (improperly renamed to ".WMV" by Microsoft) is a P.I.T.A.

That may be true, but if this is known about wmv, then we simply need to write better software to handle it. Evidently it is possible.

[exekutive]

can I decomb using staxrip?

Got it.
Click AVS Filters>Add>Restoration>DeComb