Questions tagged [mp4]

Questions relating to the mp4 multimedia file format

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2answers
184 views

How to convert MKV to MP4 using ffmpeg keeping all video, audio tracks and subtitles?

I have been trying to convert mkv to mp4 using ffmpeg -i input.mkv -vcodec copy -acodec copy output.mp4 The input.mkv has two different audio track and one subtitle . But the problem I am getting is ...
0
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1answer
46 views

Move all mp4 from folders into another folder

Currently I have a folder with alot of mp4 files located like this: Folder1/titleplaylist/mp4files Folder1/titleplaylist2/mp4files Folder1/titleplaylist3/mp4files Currently I'm using this command: ...
2
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0answers
46 views

How to play brand mp42 video?

Outout of file: VID_20190129_195553.mp4: ISO Media, MP4 v2 [ISO 14496-14] Output of ffprobe: [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5589e5bb7e40] moov atom not found VID_20190129_195553.mp4: Invalid data found ...
-3
votes
1answer
109 views

Cannot open Kazam file

My PC cannot display the video, as an error informs that there isn't any app for doing so. The error message is this: So far it makes sense, because the problem appears when pressing on the button ...
0
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2answers
955 views

MP4 and other format Video Issues Ubuntu 20.04

I have an issue which has recently presented itself which didn't happen before and I'd really appreciate some help. Unfortunately I cannot trace it back to a specific change I made and my extensive ...
2
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2answers
132 views

Converting directory full of h264 to images

first time here. Please be gentle. let me know what I missed out on and I will correct it. my question is similar to this. So, I am hoping to get an answer for my specific query too. How can I convert ...
2
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0answers
262 views

MP4 problems after installing ubuntu-restricted-extras

After installing ubuntu-restricted-extras on Ubuntu 20.04 LTS Desktop, I can play MP3 but not MP4 in both Firefox 82.0.3 (64 bit) and VLC 3.0.9.2. Ubuntu is running as a guest in VirtualBox on a ...
1
vote
1answer
712 views

Batch Convert MP4 with ffmpeg

I have a whole bunch of text files, jpg and mp4 in a folder. I want the jpg and text files to be left alone. I want to compress all the mp4 using ffmpeg's -crf argument with a value of 23, to save ...
0
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0answers
258 views

Using Open Shot Video Editor, audio is not heard in the preview

edited from Italian: Hi, I'm editing short mp4 movies using Open Shot, but when I look at the preview I don't hear the sound of the movie itself (not an external track). I have already tried to go to ...
0
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0answers
100 views

Da Vinci Resolve 16 cannot load .mp4 video

I am recording with OBS video files and remuxing after to mp4. However when I drag the mp4 file to Da Vinci Resolve, it does not load the video, just the audio tracks.
2
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0answers
93 views

How to convert an ATS video with no compression to a mp4 video?

I am using ResearchIR software in Windows 10 and I wonder if there is a tool or command in Ubuntu 20.04 which can convert the output of a thermal camera capture that is .ats with no compression, ...
2
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1answer
1k views

video not playing in Libre office impress

Using Ubuntu 18.04.4 and Libre office impress 6.0.7.3 When i insert a mp4 video in the slide only a screenshot of the video appears and I am not able to play it. How do I play mp4 videos in libre ...
5
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1answer
945 views

How to easily convert an MKV video to an MP4

I would like to easily be able to convert a MKV video to MP4 video in Ubuntu. Is there any way I can easily do this at all?
0
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1answer
608 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 ...
2
votes
1answer
2k 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
750 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 ...
2
votes
1answer
6k 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-...
0
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0answers
426 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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1answer
1k 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 ...
0
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0answers
1k 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
votes
2answers
5k 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.
1
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1answer
1k 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 ...
3
votes
2answers
2k 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
64 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 ...
1
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0answers
864 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
250 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 ...
0
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0answers
359 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 ...
1
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0answers
1k 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 ...
1
vote
1answer
737 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 ...
9
votes
1answer
2k 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
2k 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....
1
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0answers
2k 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 ...
1
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1answer
1k 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 ...
0
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2answers
10k 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 ...
1
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0answers
1k 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
votes
1answer
2k 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 ...
1
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0answers
1k 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
3k 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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4answers
968 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 ...
2
votes
1answer
2k 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
votes
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 ...
1
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0answers
7k 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
3k 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
2k 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
1
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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 ...
4
votes
1answer
31k 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
42 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
396 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
430 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 ...