Questions tagged [mp4]

Questions relating to the mp4 multimedia file format

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49 views

Can I stream video with nginx module?

I want to stream video from nginx to my browser. The videos are generlly in .mp4 format, but I can transcode either on the fly or in advance with avconv or ffmpeg/whatever. Is there a module I can ...
1
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1answer
180 views

18.04 ffmpeg: Play mp4 on fake webcam, “Conversion Failed!”

Trying to create a new fake webcam device (/dev/video2) and play a video on it so I can use it as a virtual webcam. Steps I took: sudo apt-get install v4l2loopback-dkms sudo modprobe v4l2loopback ...
1
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0answers
33 views

Remove preview (and thumbnail) from MP4 file

How does one remove the preview and thumbnail from a MP4 file (or other video format)? I just simply want to remove it and have a blank icon and preview image. I'm using OpenShot video editor which ...
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0answers
10 views

Window shutdown opening properties mp4

When I click on the properties of a mp4 file, doesn't matter which size it is, the window shuts down. Moving the files to the desktop doesn't help, then the desktop shuts down. Ubuntu 18.4 i5, 12 gb ...
2
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1answer
644 views

Ffmpeg: can TS video be converted directly to MP4 video without re-coding?

I see here (How to convert .ts file into a mainstream format losslessly?) that MKV is recommended for that purpose (ffmpeg -i input -map 0 -c copy output.mkv), but not MP4, which is said to involve re-...
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0answers
121 views

ffmpeg png + mp3 = mp4, howto make all image in a folder + random mp3 file to mp4 video with name file mp4 is name of png file?

i have a folder with 10 file png and 5 file mp3, i want use ffmpeg convert png+mp3=mp4, random 5 file mp3 for 10 file png, name of file mp4 finish is name of file png. how to do it, please help!
1
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0answers
371 views

Repairing a corrupt mp4 - I'm having issues getting untrunc installed

Basically, I get the error "moov atom not found" when attempting to play an mp4 video on vlc or any other players. Following the advice given on this thread, I'm attempting to use untrunc to generate ...
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0answers
379 views

Fast method for hardcoding subtitles to MP4/MKV

Until now I have tried 4-5 methods to hardcoding subtitles to mp4/mkv videos. ffmpeg - too slow mkvmerge - not sure thats hardcoding, because on TV subtitles are missing mkvtoolnix - program is ...
4
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2answers
1k views

h264 video does not play in Opera with Ubuntu 19.10 [duplicate]

I can't watch h.264 video mp4 format in Opera browser. Ubuntu version 19.10. It was working in 19.04.
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0answers
20 views

mp4 displays fractured overlay in 19.04

i've just done a fresh install of ubuntustudio 19.04 to replace a happily working older version of ubuntustudio. Now every single mp4 file that I previously had or try to download shows either a pink ...
1
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1answer
559 views

Batch Compress Videos with ffmpeg

I have many videos in a folder, and I want to compress them all with one command. To compress one video I use: sudo apt-get install ffmpeg ffmpeg -i input.mp4 output.mp4 But what if I have many ...
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0answers
37 views

Command line tool retreive movie metadata?

I've been using tinyMediaManager but wondering if there is anything similar and simpler ? It searches and retrieves from IMDB & such very well but has far too many options.
3
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2answers
480 views

How to resize and convert mov to mp4 on Ubuntu 16.04

I have a very heavy mov video that I need to convert to mp4 and resize. I tried some applications like Mencoder and Ffmpeg but none worked. I'm using Ubuntu 16.04.
0
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1answer
54 views

How to list all mp4 files with HDp60 (to separate them from p30)?

I need to separate my mp4 files into p30 and p60 and would like to use command line tools to do this. I know that there is an option to check the details of a media file and I need to do this as a ...
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0answers
662 views

mp4 files get corrupted when transfering them to ubuntu 18.04

This seems like a weird issue, so I've transfered some mp4 files to Ubuntu via FTP and some of them seem to be broken, more specifically the header, I get this message when I try to play them with VLC:...
2
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1answer
135 views

Why do *some* mp4 files play normally and other show unreadable static patterns on one ubuntu machine

All my mp4's are watchable on my desktop Ubuntu 18.04. But when I transfer them to my laptop Ubuntu 18.04 they show the pattern below. This is despite the fact that when I record mp4 videos locally ...
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0answers
144 views

Make Rhythmbox play .mp4 files

Once my Rhythmbox was capable of playing .mp4 files, but I can't seem to make it the same again. I tried installing: sudo apt-get install ubuntu-restricted-extras sudo apt-get build-dep rhythmbox ...
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0answers
539 views

check if list of mp4/m4v/mkv files has subtitles

i have list of about 230 video files (mp4, m4v and mkv), i want to make sure that all of them has english subtitles. is there an easy way to check it? (instead of open each 1 to see if it contains ...
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0answers
378 views

I can't play mp4 videos in Parole version 0.9.1 (codec missing), Xubuntu 16.04.6

I can't fix Parole media player to play mp4 videos! I search and research on internet but none of suggestions worked for me. I installed latest version via Ubuntu repositories but no avail to play ...
8
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1answer
1k views

How can I create a 30 second GIF from a long random video?

I have hundreds of videos in a folder that I want to make a gif for. Each videos length is different but all videos are longer than 30 seconds. I want to take 10 3 second gif images from a video over ...
2
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1answer
1k views

Any way to fix this mp4 that was cut off during recording

I took a video with my Android phone but failed to press the Stop button properly. So my phone ran out of disk memory and the Video App probably just cut off the file. After copying the file (size 2....
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0answers
1k views

Chromium doesn't play mp4 / h.264 files in video tag

Firefox plays movie on the page: https://demotywatory.pl/4908893/Prawdziwy-pies-pasterski-dba-o-swoich-podopicznych Chromium doesn't. it just shows the static backround image. when i dig the page ...
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0answers
61 views

VLC's dependencies unmet problem

I was trying to play an mp4 file but the video player said "H.264 High Profile decoder" was unavailable. I downloaded a package, but the mp4 still didn't play. I tried downloading VLC to play the mp4 ...
1
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1answer
956 views

FFMPEG Merge mp4 to mp4 batch

Hi sorry if this has already been asked but ive got intro.mp4 and over 1000 mp4 in another folder what i need is intro.mp4 to be added to every mp4 in folder im using ubuntu whats the best way to do ...
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2answers
9k views

Twitch error #6000

I just installed a fresh Ubuntu and logged into Firefox. I got my usual addons and credentials and after some time logged into twitch to find that every stream gets the following error: I tried ...
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0answers
609 views

Convert .h264 to .mp4, with timings

I am recording from a Raspberry Pi Camera to an .h264 stream. I have each frame as well as its presentation timestamp. How can I convert this to an .mp4 file? Specifically I need to be able to provide ...
0
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1answer
1k views

Firefox won't play MP4 files from the server

I'm hosting mp4 videos on my university server and when I try to play them in Firefox, I get the following error "No video with supported format and MIME type found". I can play those videos on Chrome ...
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0answers
696 views

Join / Concatenate / Glue mp4 files to one file using mencoder

I tried to concatenate some mp4 videos using mencoder like this: mencoder -ovc copy -oac pcm P10408*.mp4 -o new.mp4 When trying to play the new video I was asked to install some additional decoder ...
2
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0answers
2k views

Ubuntu 18.04.1 playing MP4 doesn't work

Installed on three (one dell latitude laptop, one dell all-in-one and one ASUS desktop) systems Ubuntu 18.0.1. After install cannot play, with standard installed Totem player, on any of the systems ...
3
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3answers
610 views

Double file extension with FFmpeg

I'm trying to get FFmpeg to go through all files and sub-folders under the path I run the command in, to convert any MKV file to an MP4 container instead. I've got the below command working but the ...
1
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1answer
927 views

How to retrieve a mp4 file into KdenLive for Ubuntu?

I've installed Kedenlive on Ubuntu 18.04. And I have also downloaded an mp4 video from AndroidAir; the video was originally recorded on my phone (Huawei Mate 10 Pro). When I tried to retrieve the mp4 ...
3
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1answer
2k views

How to convert an mp4 video by 180 degrees using ffmpeg or mencoder

After reading about how to convert a video by 90 degrees I tried these commands: mencoder old.mp4 -oac lavc -ovc x264 vcodec=mpeg4 -vf flip,mirror -o new.mp4 mencoder old.mp4 -oac lavc -ovc x264 ...
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0answers
6k views

Convert .mkv to .mp4

I am trying to convert .mkv to .mp4 Following is the my terminal. I get an error saying Cannot find H264 start code. Error importing video.h264: BitStream Not Compliant gayan@GayanF:~/Videos/...
1
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1answer
2k views

How to shrink mp4 video file size by 92%? [duplicate]

I want to minimize the size of a .mp4 video file from 300MB to around 25MB. How do I do it? I tried using HandBrake, but it is not doing as much as I wanted. Is there any coding procedure to do it in ...
0
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2answers
902 views

List MP4 by “ file '*.mp4' ” to a .txt

I want create a .txt with all mp4 files of a folder, but vertically and with file '/root/mp4/*.mp4' line by line. In Windows it's like (for %i in (*.mp4) do @echo file '%i') > files.txt
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0answers
19 views

Winphone MP4 on ubuntu

If I connect my Winphone to my Lubuntu PC with a USB cable and drag its Mp4 videos across the will not open (Unrecognized format). If I take the SD card out of the phone & pop it into my USB2.0 ...
2
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1answer
25k views

FFmpeg command for mpeg-ts encoding

I have just started using FFmpeg encoder. I have a command to encode video files to mp4 containers: ffmpeg -i input.mp4 \ -vcodec libx264 -s 426x240 -pix_fmt yuv420p \ -crf 22 -minrate ...
0
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0answers
40 views

mp4 videos has somehow changed to jpg format

I was thinking that I have lost some of my mp4 videos. Now I have found them as a large size jpg files. I don't know how that happened bud would like to be able to play them again. Just renaming them ...
0
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0answers
334 views

totem crashes — mplayer works fine

Looking to play a video with totem but the screen is non-responsive and shows a force quit button: thufir@dur:~$ thufir@dur:~$ mplayer Downloads/media.mp4 MPlayer 1.3.0 (Debian), built with gcc-7 (...
0
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1answer
2k views

Problems playing .mp4 files in Firefox on Ubuntu 17.10

Currently .mp4 files do not stream properly in Firefox. Can I check to see what file types are supported on my Ubuntu machine?
1
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0answers
184 views

Made an MP4 recording with SimpleScreenRecorder and default player or VLC won't play it

I had been using MKV and tried MP4 and would like to get it to work some way or another. I'm using Ubuntu version 14.04. When I try to play it with the default player it says no playable data and ...
3
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1answer
776 views

Taking screenshots from random frames of a video file [duplicate]

How can I take sequential screenshots from a video file using terminal? With ffmpeg I could capture a single frame, but I need something like this
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2answers
9k views

VLC opens and closes immediately when I play video files

I made a clean install on my laptop yesterday and installed VLC via command line. VLC crashes immediately as soon as I play any MP4 file. MP3 files play fine. I reinstalled Ubuntu. The problem ...
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2answers
1k views

Fix MP4 files which were improperly stopped while recording due to lack of space?

I have used my Android cell phone to record online lectures while driving home. The problem is that the version of Android across all my devices is 32 bit, so the maximum file size is limited. ...
1
vote
1answer
938 views

Why can't the default Ubuntu video player play MPEG4 movies without downloading additional codecs?

I know default video player in Ubuntu can download required codecs to play MPEG4 files. But I wonder why they are not embed this wide using codecs by default. Suppose a user cannot access to ...
1
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0answers
669 views

How to playback MP4 file in Mpeg4 Part 14 format?

I have some mp4 video files that come from my iPad. I am wanting to play them on Linux. By default, the player doesn't recognise the format. $ file 1.1.1.mp4 1.1.1.mp4: ISO Media, MP4 v2 [ISO 14496-...
0
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1answer
679 views

I need to make a dvd converted to a mp4 for my TV [duplicate]

I bought a DVD for my son but our DVD player is not reading it ; I think it is broken somehow. While my notebook can read DVD I want to make this animation DVD convert it mp4 or something else that ...
1
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1answer
885 views

youtube-dl removing downloaded parts

youtube-dl downloads mp4 parts and after downloading, combines that parts to make a single mp4 video file. I don't want a single, combined mp4 file. Because i want to edit those mp4.part files myself. ...
1
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0answers
43 views

How can I make the audio of this mp4 downloaded with youtube-dl work? [duplicate]

I opened the terminal of blender suite and typed: youtube-dl -f22 youtubeaddress The specifics of format 22 of the youtube-dl program is as follows: 22 mp4 1280x720 hd720 , ...
0
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1answer
491 views

Errors when attempting Playback on OpenMeetings

I am new to Linux, so if I am just overlooking something that should be obvious or if I'm directing this in the wrong place, please don't judge me too hard I just am stumped. I have just finished ...