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I am attempting to use the Convert/Save feature of VLC to convert an mkv file to an mp4. (H.264 video with MPEG-4 AAC audio)

I get the following error:

VLC could not open the mp4a audio encoder

How can I remedy this? VLC 2.2.4 on Windows 10.

Thank you!

Mooseman
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  • Is there any more information you could provide? Any other debug/error messages? VLC version? Metadata of the video? What media codecs you have installed? What OS are you running this on? If you're running it on a Linux distro, would you be able to provide additional debug info by starting VLC from terminal? – Caturday Saint Feb 13 '17 at 20:57
  • I added "VLC 2.2.4 on Windows 10" to my question. I haven't installed any codecs manually. – Mooseman Feb 14 '17 at 00:01
  • Would you also be able to add the commands/process you're using to get the error message? Maybe a screenshot? – Caturday Saint Feb 14 '17 at 15:28
  • @ServiceManager Open UI -> Convert/Save. No other errors as VLC will continue to convert the video. However no audio track is saved. – Mooseman Feb 14 '17 at 19:10

3 Answers3

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Go to Tools > Preferences > Input/Codecs > Video codecs > FFmpeg Changing the 'Strict standard compliance to -2 worked for me.

Found this method here: Streaming / Transcoding failed

Community
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MemoRee
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    As dankohn noted below, you need to select "Show All at the bottom left" to show FFmpeg option – Harry Cho Nov 12 '17 at 08:16
  • My problem was the video that I used VLC to convert, the convered MP4 was no audio, only video, I found that the audio format was not same with the original file format "MPEG-4 AAC" audio.You solution is works for me. – Json Jan 28 '18 at 02:22
  • Like https://superuser.com/a/1233748/396998 answer says, you need to scroll down to find the `Strict standard compliance` section (doesn't always show an obvious scrollbar on a mac) - thanks @dankohn! – Rock Lee Apr 17 '18 at 06:03
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On OS X, you select VLC menu and then Preferences. Then click Show All at the bottom left. Then under Video Codecs in the left pane, select FFmpeg, scroll halfway down and change Strict standard compliance to -2.

Dan Kohn
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0

If you want to open an mpeg4 video an alternative is to use the command below:

xdg-open test_video.mp4

If you get error, you might need to install the following in CentOS:

sudo yum install gstreamer gstreamer-ffmpeg gstreamer-plugins-bad gstreamer-plugins-bad-free gstreamer-plugins-bad-nonfree gstreamer-plugins-base gstreamer-plugins-good gstreamer-plugins-ugly gstreamer-plugin-crystalhd gstreamer1-plugins-bad-freeworld gstreamer1-plugins-bad-free gstreamer1-plugins-good gstreamer1-libav ffmpeg
Mona Jalal
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