Questions relating to the mp4 multimedia file format

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9
votes
3answers
6k views

Batch extract audio with avconv

I have about 70 mp4 files, and I want to extract the audio files directly without transcoding further. All the mp4 files have aac audio files. I understand I can use the following command to extract ...
3
votes
1answer
6k views

Movie Player won't play MP4, gxine does

I've recently installed Ubuntu 12.04. I have installed ubuntu-restricted-extras and ubuntu-restricted-addons, gstreamer0.10-ffmpeg, libdvdread4, libdvdcss2, run the .sh script, and I don't remember ...
4
votes
1answer
557 views

How can I convert .mp4 and .m4a files to .mp3 files automatically, keeping the cover art?

I have some .mp4 and .m4a audio files that I want to convert to .mp3 files. I want the resulting .mp3 files to include the cover art included in the source files, without fiddling with EasyTAG ...
3
votes
1answer
621 views

How do I get a Dane-Elec mp3/mp4 player working?

My MP3/MP4 does not plug-in and play and therefore I can not transfer any file to the MP3/MP4 dane-elec music my touch or only dane-elec with 8 gb in memory and perhapses model zt1 with radio,..and ...
2
votes
3answers
33k views

Convert mkv to mp4 with ffmpeg

When I try converting mkv to mp4 using ffmpeg, the following error occurs: version 0.8.3-4:0.8.3-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers built on Jun 12 2012 16:52:09 with ...
4
votes
2answers
4k views

What tools can I use to a text overlay to a video?

I have an MP4 that I uploaded from my Android to my Ubuntu workstation for editing. What tools can I use on Ubuntu to fade in and out professional-looking text?