Questions relating to the mp4 multimedia file format

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82
votes
9answers
125k views

How can I convert audio from MP4 or FLV video files to mp3?

Is there an application that allows me to extract the audio from a MP4 or FLV video file and store it as an MP3 file for use in a portable media player?
64
votes
6answers
123k views

How to convert .mkv file into .mp4 file losslessly?

I need to convert a video file from Matroska container into mp4 container. Matroska file contains one h.264 video track and one AC3 sound track. It should be possible to do this losslessly, but how to ...
32
votes
8answers
103k views

How do I convert an MP4 to an MP3? [duplicate]

I have some songs which are in mp4 format and I want to convert them into mp3 format. I am new to Ubuntu/Linux. So please explain the step by step process or give any software which can do the above ...
11
votes
4answers
15k views

Batch extract audio with avconv without transcoding

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 ...
10
votes
2answers
34k views

How to fast convert mp4 to webm using ffmpeg?

Sorry to disturb you but I'm in a kind of a trouble. I have to convert 76 mp4 files to webm for the purpose of a website that uses HTML5 videos. I'm talking about 10 Gb of mp4 files... I know I can ...
8
votes
2answers
16k 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?
6
votes
5answers
58k views

How to convert a video from mp4/flv to mpeg/mpg [duplicate]

I download videos in mp4 or flv format but I need to convert them to mpeg 1/2/3 so that I can watch them on my special gadget. I think I need a program. any suggestion thanks
6
votes
3answers
19k views

How to extract the audio from an mp4 video to a mp3 file?

I'd like to extract the audio from an mp4 video. Is there a software for Ubuntu, which does the job?
6
votes
1answer
1k 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 ...
6
votes
3answers
810 views

What options exist for viewing mp4 tags in list view? [duplicate]

I have several mp4 videos. When using Windows7 Explorer I can create a details view (or list view) of the mp4 tag information on these videos, which makes it easy to organize them by genre, title, ...
6
votes
3answers
10k views

Trying to convert MKV to MP4 with avconv, failing

I am trying to convert an MKV file to MP4 to be compatible with my PS3. I am using: avconv -i file.mkv -c copy file.mp4 It fails and I get the following error: [mp4 @ 0x8a17c00] pts < dts in ...
5
votes
3answers
6k views

How to check how long a video (mp4) is using the shell?

I need to ftp upload all the mp4 files in a directory with length > 4 minutes using the shell. I can't find any script to check how long a video is. Does anybody have any idea how to do that? Thank ...
5
votes
1answer
15k views

How can I convert my mp4 files to avi using avconv?

I need to convert some mp4 files to another format (I chose avi: there may be a better one, suggestions welcome). I tried using ffmpeg but got the deprecated message so I am using avconv, but again ...
5
votes
2answers
8k views

How to convert an mpeg2 to a streamable or fragmented mp4?

I am trying to convert mythtv recorded mpg (mpeg2) files into streamable mp4 files. Converting to an mp4 is simple, however, the entire file must be converted first before it is usable. Even using ...
4
votes
1answer
3k views

Create gif animated image from mp4 video

I want make a .gif animated picture extracted from a given .mp4 video,. I would prefer to do it from the command line, so command line tools only are accepted
4
votes
2answers
3k views

SMPlayer not playing MP4 format

I am trying to run some MP4 videos on SMplayer , but the player is only playing the audio, and no video is visible. The same file I open in VLC player is showing video + audio. I like SMPlayer, as its ...
4
votes
1answer
8k 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
2k views

How to Convert All The .MOV Videos To .MP4 in folder

using ubuntu 14.04 i am a newbie can anyone help how to easily convert all the .mov files in my /var/sentora/hostdata/zadmin/public_html/ctkdonline_com/wp-content/uploads/2015/08 folder need to ...
3
votes
4answers
64k 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 ...
3
votes
2answers
13k views

Convert MTS to MPEG [duplicate]

Possible Duplicate: Converting panasonic .MTS video into high quality mpeg videos? I have a Sony handycam which records HD videos in AVCHD resulting in .MTS file names. The video doesnt play ...
3
votes
1answer
3k views

Best avconv settings for WebM video?

What are the best settings when converting, say, a .mp4 video to WebM? I have done some searching on here but nothing specific to what I need really. What I've been using: avconv -i input.mp4 \ ...
3
votes
2answers
13k views

Problems playing MP4 and MP3 files in 12.04 64bit

I'm experiencing the same problems on 2 machines with 12.04 (with beta2 AND yesterday final release); MP4 files don't play in default movie player and mp3 quality and timing seem poor. Installing ...
3
votes
1answer
953 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 ...
3
votes
2answers
892 views

Is there a program to manage movies and TV shows that supports mp4 tags?

I'm looking for a media manager that will display and play movies and TV shows and will read data included in mp4 and m4v files. So far I've looked at XBMC, Moovida and Boxee and all of these seem to ...
3
votes
5answers
8k 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
4answers
5k views

Need to convert a video file from mp4 to xvid

I checked out the questions with similar titles and didn't find anything that I thought would help. I am attempting to convert a video into an avi, preferably xvid. The video file's Video and Audio ...
2
votes
3answers
16k views

ffmpeg unkown libfaac ubuntu 14.04

I Have Installed ffmpeg 2.3 in Ubuntu 14.04 ffmpeg -i demo.mpg -acodec libfaac demo.mp4 ffmpeg version 2.3 Copyright (c) 2000-2014 the FFmpeg developers built on Aug 13 2014 22:15:33 with gcc 4.8 (...
2
votes
2answers
7k 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 with ffmpeg and -acodec copy but if i use mp4 as output it will still encode the video and I get the same file size. If I use m4a as output ...
2
votes
6answers
5k 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.
2
votes
2answers
24k views

Can't play .mp4 files embedded in html5 player in Firefox [closed]

I have just installed Lubuntu 14.04. I can run .mp4 video files directly with Firefox but if i put them into an HTML5 tag then I get error: 'video format or mime type is not supported'. I have been ...
2
votes
2answers
628 views

How can I play mp4 files from a USB live iso?

How can I play mp4 files from a USB live iso of Ubuntu 11.04? I can mount my external hard drive, but totem wouldn't allow me to play my mp4 files. Trying to find the ubuntu restricted packages with "...
2
votes
1answer
79 views

Play audio of video file on login

I want to play an mp4 file when my account is logged into. How can I do this? It should be noted that the file also has video, so I only want the sound to be played, and not the video to be shown. ...
2
votes
1answer
510 views

Handbrake ripped mp4 stops at 27mins 55 sec

I am running Ubuntu 14.04 LTS 32 bit. I have installed HandBrake from add-apt-repository ppa:stebbins/handbrake-snapshots (thus avoiding the Debian issue) but I've found that all of the MP4's play the ...
2
votes
1answer
955 views

Some videos have no thumbnail?

I just downloaded a video series and opened the videos folder to find that some of the videos have thumbnails and some do not. How can I force the others to generate thumbnails? I have tried playing ...
2
votes
0answers
290 views

Unable to play MP4 files on Ubuntu 14.04

Because I could not find answer to my question, I am raising it here in the forum. I have Acer Aspire One 722 and installed on it Ubuntu 14.04 LTS. I downloaded MP4 files from GoPro yesterday and ...
2
votes
1answer
858 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 ...
2
votes
3answers
2k 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.
1
vote
1answer
2k views

bulk/batch convert mp4 and m4v files to webm via command line?

is it possible to convert mp4 and m4v to webm via command line? I'd like to just in a bulk swoop convert my mp4 and m4v files to web so i can play them in firefox without any issues.
1
vote
2answers
5k views

Record my desktop in mp4 format

How do I record my desktop interaction (video) and audio directly in MP4 format? I have Ubuntu 10.04 LTS.
1
vote
2answers
6k 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.
1
vote
1answer
741 views

Why doesn't the faac package support mp4?

In Ubuntu 13.10, faac doesn't support MP4. If you run faac --help you get: Freeware Advanced Audio Coder FAAC 1.28 Usage: faac [options] infiles ... Options: -q Set ...
1
vote
1answer
36 views

How would you label an audio track as a “Japanese Surround 5.1” in MP4Box or ffmpeg

I have tried several methods of trying to label the track such as using MP4Box -lang 3=jpn file.mp4 and then did MP4Box -name 3="5.1 Surround" file.mp4 and the file in VLC keeps it's label only ...
1
vote
1answer
307 views

import mp4 file in blender

I installed blender to edit my videos with mp4 format, but when I started import files blender show me this error : "file could not be loaded"! I don't know what's the problem here! is a codec video ...
1
vote
1answer
791 views

How to repair videos?

Videos' size became 0byte. I don't know what happened. But some of the videos work, those recently played became 0byte. On Totem says: Stream contains no data. And on other player they don't play ...
1
vote
1answer
5k views

VLC player wont play AVI or MP4 [duplicate]

I'm brand new to Ubuntu (and linux all together). I just installed Ubuntu 12.10 on my Lenovo S10e, and I'm trying to play movies that I loaded from my external HD onto the netbook. I've tried 4 ...
1
vote
1answer
2k 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 ...
1
vote
0answers
29 views

How to open mp4 with Chrome?

You know, we can drag the mp4 movie to Chrome to play it. I want to open it with Chrome as default. But I can't find google-chrome at the "Other Application", as I can find the Firefox there. How ...
1
vote
0answers
66 views

How to convert webm video to mp4 when encountering errors for unsupported LBRR frames and decoding SILK/Opus

I have a low quality, but playable .webm video. It was recorded from a webrtc live stream that seems to have been on a bad connection. There are not many video frames and the audio cuts out for a ...
1
vote
1answer
99 views

How to connect two or more mp4 files?

I have two mp4 files (part 1 and part 2 of a video with sound), and when one ends I want the other to begin, but this gets a little annoying because it is a music video and the sound has to stop while ...
1
vote
1answer
121 views

How can I split a .mp4 in two?

I have a bunch of .mp4 files (DRM free). Each file comprises two episodes of a kids TV show. I would like to simply split the file in two without re-encoding. What's the best way to do this? ...