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Crash when transcoding any MP4 file in 1.1.5
Posted: 13 Dec 2010 01:52
by tokyotech
I've been transcoding and streaming with VLC 1.0.5 for a long time. Virtually every file worked fine with it. I've recently upgraded to VLC 1.1.5. Now all my MP4 blu-ray rips immediately crash when I start transcoding. These MP4s are downloaded from various sources. MKV, AVI, and DIVX rips all work fine. I'm on Windows Vista Business 64-bit, by the way. I'm just using very simple transcode options. What's wrong?
Code: Select all
#transcode{vb=800, scale=0.6, venc=x264{}, vcodec=h264, acodec=mp3, ab=96, channels=2, threads=2}:duplicate{dst=standard{access=http, mux=asf, dst=127.0.0.1:1234}}
Example of functional MKV blu-ray rip:
Example of crashing MP4 blu-ray rip:
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 13 Dec 2010 06:11
by Rémi Denis-Courmont
Unfortunately, this is utterly useless informations. If you want developers to look at a crash report, you really need to provide a stack trace (for which you need to install debug symbols and a debugger, or compile your own VLC, unfortunately).
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 13 Dec 2010 06:33
by tokyotech
I don't know how to do any of what you just said.
I changed verbosity to 2, but it wasn't any more verbose than -1. Isn't this easy for a developer to reproduce? Just set your default stream output to what I have and pop in any MP4. I've tried dozens of MP4 blu-ray rips created from many different expert transcoders and they all crash VLC immediately. It's the container that screws up VLC. My MKVs also contain h264 encodings, yet they don't crash VLC.
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 14 Dec 2010 01:52
by Rémi Denis-Courmont
If you think it's easy to reproduce, you can file a bug on Trac.videolan.org but you should know that the volunteer developers are rather on the overwhelmed side w.r.t. bugs, and streaming on Windows is not exactly the top priority.
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 03 Jan 2011 13:52
by ChillOuT
I figured that the problem with transcoding of mp4 files is the audio (mp4a) and not the video. somehow vlc 1.1.5 doesnt like the transcoding of mp4a audio and crashes. Is there a fix for this?
Edit: or is it all 6 channel audio that make vlc 1.1.5 crash? hmm.
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 04 Jan 2011 00:21
by tokyotech
It's not just me. Everyone else is having the same problem here:
http://forums.veetle.com/forums/viewtop ... f=8&t=2292 . It has something to do with the audio.
Re: Crash when transcoding any MP4 file in 1.1.5
Posted: 04 Jan 2011 21:57
by Rémi Denis-Courmont
Currently, there are no developers working on Windows stream output. Since you don't pay the developers, you can't really tell them what to do (nor can I).