Questions relating to the mp4 multimedia file format

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2
votes
3answers
5k views

VLC unable to play mp4 files downloaded from youtube

Regarding the above, not sure what happen since previously I could play any files I download from youtube, be it avi or mp4. Now I cannot play any mp4 file downloaded from youtube but no issue to ...
2
votes
2answers
956 views

mp4 video playback is horrible

How can I get mp4 video to playback normal. They skip and look horrible. I was able to get them to playback on Fedora using a different setting with smplayer but nothing seems to work with Ubuntu.
0
votes
2answers
1k views

mp4 to mp3 conversion

I have worked on multiple tools that convert a "mp4" file to "mp3" format, but what I am really interested in, is there a way I can convert multiple mp4 files to mp3 format in a single go.
0
votes
2answers
3k views

split video from mkv, avi, mp4

I've a mkv video file and want to split some important scenes. Is there any tool in ubuntu to split them. I'm looking for GUI tool. any help is appreciated.
2
votes
1answer
97 views

mp4v and mp4a in Ubuntu VLC

In 13.10, I have this error in VLC: [0x7f529c0038a0] main decoder error: no suitable decoder module for fourcc `mp4v'. VLC probably does not support this sound or video format. [0x7f529c004470] main ...
1
vote
1answer
518 views

error while trying to play .mp4 file

after agree to download and install extra multimedia plugins, it says package dependency can not be resolved, with below error: The following packages have unmet dependencies: ...
0
votes
1answer
18 views

How to extract aac audio from an mp4 file to m4a

How can I extract the aac-audio from an mp4 file? I tried so with ffmpeg -acoded copy but if i use mp4 as output it will still encode the video and I get the same filesize m4a as output it will ...
0
votes
1answer
208 views

MP4 plays too fast

I am trying to play an MP4, but it plays too fast, as in fast-forward. The sound track is on time though. Existing solutions don't apply to me. Should I be able to slow down the frame rate on VLC or ...
0
votes
1answer
425 views

VLC lagging while running HD videos

My vlc player keeps lagging while i play hd videos. To be more especific, it has been lagging in mp4 files with 720p and 1080p. It keeps stopping like 10 seconds to 10 seconds. The stopping time is ...
0
votes
1answer
246 views

Can't play mp4 files in Edubuntu 12.04

I have installed new Edubuntu 12.04 and unfortunately my mp4 files are not running.
0
votes
0answers
31 views

video playback running very slow (mp4, youtube, etc) on Asus EEPC 1201t 2gb using Ubuntu 13

I used to have a Windows 7 starter edition OS installed on a Asus EEPC 1201t 2gb and mp4 HD videos from my camcorder used to play fine. So I switched to Ubuntu 13, the whole system is pretty faster ...
0
votes
0answers
10 views

Arista Transcoder not keeping the subtitles after convertion from MKV to MP4

I'm trying to convert a TV show episode from MKV to MP4 to run on my PSP and the MKV file has subtitles embedded, but when I use Arista Transcoder to convert, the result is a video without the ...
0
votes
0answers
14 views

How to slow down a PAL video to NTSC?

I have a video file that was ripped from a DVD that was converted from NTSC to PAL. Now, that file is faster and higher-pitched than it should be. How can I slow down this mp4 file (both in video ...
0
votes
0answers
21 views

mp4 does not upload from android to ubuntu 1

I am experiencing issue uploading mp4 files from android to ubuntu 1 using the app as well as chrome browser. Files are less than 150mb and there is enough space on my cloud. Files does not upload in ...
0
votes
0answers
73 views

An error occurred mp4 files

plz help me to read my mp4 files and mov files i can't read it a error message apparre say An error occurred This file contains no playable streams. this is the picture from my lap ![error ...
0
votes
0answers
144 views

MP4 Player Not Detected in Ubuntu 12.04

When I plug my New Sony MP4 Player into the computer it is suppose to be recognized as a Flash Drive so I can drag files into it. Ubuntu does not Recognize it at all. I Also noticed Ubuntu does not ...
0
votes
0answers
72 views

Pcmanfm — thumbnail disappears after opening file

Pcmanfm has a strange behaviour with video thumbnails. Every time I right-click and choose "VLC media player" the thumbnail disappears. Reloading view makes video thumbnail reappear again.
0
votes
0answers
391 views

How to convert+resize+deinterlace MKV (H.264+MP3) to MP4 (H.264+AAC) with avconv - while keeping subtitles?

I'd like to convert MKV to MP4 by considering the following on Precise (64bit): deinterlace denoise resize (only want specify width and aspect ratio, height is variable between files) make use of ...