Questions tagged [mp4]

A digital multimedia container format most commonly used to store video and audio, but which can also be used to store other data such as subtitles and still images.

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Is it possible to encode MP4 video with VP9 codec?

Does MP4 support VP9 codec or is it exclusive to WebM?
adityav's user avatar
  • 141
4 votes
3 answers
19k views

MKVToolNix equivalent for .MP4's

Good day! I'm looking for MKVToolNix equivalent software for .MP4's. I will use it in a video file without subtitles, I'll find it's subtitle and merge it with the video file just like what I did in ...
Julius Alfeche's user avatar
1 vote
1 answer
109 views

Replacement for Windows Live Movie Maker for combining images and audio (Windows 10)?

I want to combine some audio I recorded with an image (for uploading to YouTube). Googling turned up "Windows Live Movie Maker" which appears to be more dead than alive, now, at least as far as ...
B. Clay Shannon-B. Crow Raven's user avatar
0 votes
1 answer
3k views

mp4 to avi/mpeg conversion

I'm trying to convert an mp4 video to play on a digital photo frame. The photo frame (Living Image Li1210) manual states: The digital photo frame can playback MPEG1, MPEG2, MPEG4, and AVI (dependant ...
jx12345's user avatar
  • 101
2 votes
2 answers
18k views

Why when you specify a video bitrate with ffmpeg does the resulting files displayed bit rate differ?

I'm fairly new to transcoding.I've been generating some mp4's from mxf files. I've been playing around with some settings on ffmpeg and been specifying various bitrate's for audio and video with the -...
treetop's user avatar
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2 votes
1 answer
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ffmpeg convert mp4 to mov with dnxhd codec

I'd like to convert an mp4 file to DNxHD for use with DaVinci Resolve. Here is my attempt of doing the conversion using ffmpeg: C:\FFMPEG\bin\ffmpeg.exe -i "H:\Downloads\test.mp4" -vcodec dnxhd "...
TweedleChicken's user avatar
1 vote
1 answer
1k views

FFmpeg, encode video for 720p @ 4mbps playback

I've been fighting with this dilemma for about a week or two now and I've tried my best to understand it from whatever I can find through google. What I need (or at least I think I need) to do is ...
Rycore's user avatar
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2 votes
1 answer
1k views

How to batch covert a folder of mp4 files to avi?

I'm trying to batch convert a folder of MP4 files to AVI using this script: for f in *.mp4; do ffmpeg -i "$f" -q:v 6 "encoded/${f%.*}.avi”; done (This is based an earlier question that was helpfully ...
d13's user avatar
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10 votes
1 answer
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Convert mp4 to avi while keeping frame rate and quality and being able to play in QuickTime?

I'm trying to convert an mp4 file to avi. I've tried this basic ffmpeg script: ffmpeg -i inputFile.mp4 outputFile.avi It works, but: the encoded avi file is very pixelated does not work with ...
d13's user avatar
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1 vote
0 answers
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FFMPEG MXF -> MP4 - Cannot get proper audio on output file

I am software developer working on a project that requires my video files to be an mp4 format, as this is what most vendors support. I am trying to use ffmpeg, to rewrap the MXF file, into an mp4. ...
Busturdust's user avatar
7 votes
3 answers
25k views

Howto Repaire or fix the duration of a mp4 video

I'm having a film that's ffmpeg and other progs claims to be 07:03:52 long, but the real playtime is actually more like 2:35:00 ffprobe video.mp4 ffprobe version 3.0.2 Copyright (c) 2007-2016 the ...
Joakim's user avatar
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1 vote
3 answers
1k views

Camera configuration - Should I select an AVCHD interlaced format over MP4?

I just bought a 2016 Full HD (not 4K capable) video camera and it supports encoding in AVCHD (I believe this is AVCHD 2.0) and MP4. The available Full HD formats are: AVCHD 1080:60p 1920x1080 60p ...
jmbouffard's user avatar
0 votes
2 answers
415 views

Convert 29.970030 fps .mp4 to 29.970000

I'm working on web project where the position of the user's mouse triggers a video to play forward and backwards. Here's my problem: The code I'm using to achieve this requires the video file to be ...
Androbaut's user avatar
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1 vote
1 answer
1k views

Why does ffmpeg report wrong or missing size information when demuxing some EXRs?

I am converting EXR image sequences to mp4. Some sequences are converted without error, but others report "wrong or missing size information" and generate . It is difficult to identify what is ...
lofidevops's user avatar
0 votes
1 answer
48 views

Where can one find a current and definitive reference for video quality as it pertains to hosting HTML5 Videos?

At my job, I have encoded our sites videos for a couple years by using X-Media Re-encode: MP4 1024x576 VBR 1500kbps WebM 1024x576 CBR 1200kbps I never had complaints about quality or buffering, I ...
zer00ne's user avatar
  • 101
1 vote
1 answer
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How do I preserve the filesize of an MP4 edited in After Effects?

I'm editing a small animation video (.mp4) of our app with After Effects (cropping composition to region of interest). I then add the composition to Adobe Media Encoder Queue and process it with the ...
styke's user avatar
  • 111
6 votes
1 answer
9k views

ffmpeg concat introduces a/v sync problem

I have one 2-hour video file and want to add a 10-second title sequence to its start. The long file has perfect a/v sync from start to finish. However, when I use ffmpeg -f concat -i mylist.txt -c ...
trinkner's user avatar
  • 163
1 vote
1 answer
4k views

Youtube processing stuck at 95%

Well I'm trying to upload a video recorded with ffmpeg, but Youtube fail at processing it. Here's the video information: Here's the link . EDIT: Here's the command ...
lcssanches's user avatar
-1 votes
1 answer
63 views

How to optimize h.264 to play it on every possible device

I coding videos in MP4 for my windows phone, but now I want to be sure that this videos will be played on every mobile device possible, so question is: What the best unified settings for H.264 codec I ...
Oleg Shakhov's user avatar
3 votes
2 answers
4k views

How can I generate a color-correct h264/MP4 from a DPX sequence using ffmpeg?

We are converting a sequence of DPX files into an MP4. When the artist uses Adobe Media Encoder CC to generate the video, the colors match the original DPX. When we use ffmpeg, the video has a reddish ...
lofidevops's user avatar
0 votes
1 answer
106 views

Best encoding to fit 10hours of 1080p in 30gb?

I will be running a 10hour loop on a 1080p screen with only 30gb of storage. The loop will be created from a variety of 1080p .mp4s that will need to be compressed. (for example, one video is 12mins ...
Artimath's user avatar
1 vote
1 answer
1k views

How to create MPEG-DASH variants at resolutions where one dimension is not a whole number in pixels?

I've created a bunch of variants and a DASH manifest for Sintel, which more or less works, but does not pass validation. The issue is when I want to scale a video to a specific width, but the height ...
Peter Tseng's user avatar
1 vote
1 answer
1k views

Batch encode to X265 on the Mac

I need to encode thousands of MP4 H264 (mostly) files in a folder hierarchy to H265. Unfortunately Handbrake that I'd normally use have dismal support for batch processing of hierarchies. The ...
MiB's user avatar
  • 141
0 votes
2 answers
746 views

AviSynth mp4 Not Supported

(Total beginner) Trying to process an MP4 file using an AviSynth script, as follows: DirectShowSource(inputFile, fps=25, convertfps=true, logfile=logFile) Error message: "DirectShowSource: couldn'...
rfm's user avatar
  • 11
4 votes
1 answer
51k views

Big difference in the video file size after the conversion (.mov to .mp4)

After converting from .mov into .mp4, a video file is greatly reduced in size (.mov - 75,2mb .mp4 - 11,9mb) - does this mean that the converted video degraded (loss of color information, or the ...
Rumata's user avatar
  • 165
9 votes
3 answers
14k views

Corrupt MP4 [recording interrupted]

I was recording an MP4 file using PlaysTV, and my computer had a power fault half-way through the recording. I'm sure that the file contains valid data, it's just that no media player will recognize ...
username_unavailable's user avatar
4 votes
1 answer
322 views

Converting WMV to MP4

I just joined this community and hope my question is acceptable since it is quite "noob" like. I have a .wmv video file that is 1280x720 and causes windows media player to abort after excessive ...
AMSGH's user avatar
  • 41
1 vote
1 answer
707 views

Can I reproduce video in 1440×1080 12M MP4 on a Full HD TV?

I am interesting in shooting some amatorial videos (family) with a digital camera. At the moment my camera support AVCHD and MP4. I found AVCHD less compatible and more time consuming to process so ...
GibboK's user avatar
  • 133
1 vote
1 answer
4k views

Issues looping a stream with FFMpeg

I'm trying to overlay a video on top of an image. The problem that I'm facing is that the video duration that I want is longer than my input video's duration. To solve this issue, I try to generate a ...
user361526's user avatar
1 vote
1 answer
409 views

App to rotate .mp4 video for Windows or Android

I have an .mp4 format video filmed in portrait format, when currently played on any landscape format device the people appear sideways. I would like a sipmle app for either Windows™ or Android OS to ...
Arif Burhan's user avatar
6 votes
2 answers
8k views

Removing MP4 encoding information

Is it possible to remove certain information form a MP4 file? Specifically things like tagging and encoding dates, Writing library and application, Encoding settings... No client needs to know when I ...
eppic's user avatar
  • 145
2 votes
3 answers
348 views

Best way to trim and save an existing mp4

If I have an existing MP4/H264 video file and I need to trim the start and end, Then save it as an MP4 again, Are there any recommendations on export settings?
alexh's user avatar
  • 703
2 votes
1 answer
3k views

Convert mkv to mp4 (or webM) with the output file viewable in the process

I'm trying to find a way to convert a MKV file into MP4 and actually already start to view it, while it's still converting. The output file would be viewed via Chrome or Firefox and I would like to ...
user avatar
0 votes
1 answer
440 views

Compressing a large MP4 file that is on 2.30mins long

I have been sent a video that is only 2.30 mins long. But is a whopping 168mb, unfortunetely this has to be embedded into an app - so I need it as small as possible. I need to get the file size down ...
me9867's user avatar
  • 101
0 votes
2 answers
2k views

Canon Vixia HF R600 - MP4 vs AVCHD

I just bought a Canon Vixia HF R600. It's giving me the option to save files as AVCHD or MP4. I will be importing them to my PC and editing them in Adobe Premiere CC. I'd heard that AVCHD has a ...
BrettFromLA's user avatar
  • 1,589
0 votes
1 answer
107 views

Why is a screencast produced by Quicktime (.mov) is much smaller than the converted MP4 file?

I recently recorded numerous screencasts using Quicktime. The .mov files produced by Quicktime are 2876x1748. To goal was to upload the files to YouTube and so I wanted to convert to the ...
Prembo's user avatar
  • 101
2 votes
1 answer
272 views

How can I avoid Quicktime Vulnerability with h.264 encoded MP4 files?

I posted this earlier on SuperUser, but realized that this is likely the more appropriate forum for my question. We have several thousand very large MP4 files that have been encoded over the past ...
GDP's user avatar
  • 322
-1 votes
1 answer
3k views

Unedit, remove all edits Video [closed]

How do I remove all edits from my video and view the original footage? I have tried and looked up everything I have gotten closest with after effect and Adobe Media converter.
Day Kahler's user avatar
4 votes
1 answer
2k views

inserting video clip into another video but keep original audio

I need to replace video in a larger mp4 file with a smaller mp4 clip - but leaving the original (larger clip) audio intact. So for example I might want the first 2 seconds of SmallClip.mp4 to replace ...
WoogieBoogie's user avatar
1 vote
0 answers
79 views

ffmpeg h264 crashes IE intermittently

First for moderators, this is relevant because I have incorporated ffmpeg in a program to render videos needed for a web-app. My problem is that the videos I render randomly crash IE 11. Other ...
Conley Johnson's user avatar
0 votes
1 answer
1k views

How can I insert a censor bar into a mp4 movie?

I have a feature film in mp4 format. There is one scene where I just want to place a black censor box to conceal one part of the screen, no more than 7 seconds. I'm a beginner, so my concern is that ...
Joe Morano's user avatar
2 votes
1 answer
799 views

Does the MP4 HTML5 compatible video type allow for mono audio?

I'm doing some rendering in Vegas Pro and notice that if I select MainConcept (which gives me an HTML5 compatible MP4) the audio tab only has options for the bit rate and the sample rate. Before ...
user3643's user avatar
  • 2,134
0 votes
1 answer
151 views

Is there a way to split a mp4 into 2 mp4, one is metadata.mp4 and another is mediadata.mp4

When media data is stored in the end of the mp4 file(it always be there),it is very difficult to extend or delete metadata infos,because metadata will use absolutely offset of this mp4 file to locate ...
aicco's user avatar
  • 25
4 votes
7 answers
79k views

Is it possible to create a continuously looping video?

Is is possible to create a continuously looping video? Maybe by editing the container it's in so that it restarts automatically? I have a demonstration video that is playing on a TV in the lobby of ...
John S's user avatar
  • 143
4 votes
2 answers
3k views

How can I ensure that DaVinci Resolve will detect and/or load my .mp4 / .avi files?

New user of DaVinci Resolve, explain-like-I'm-five. =) Have installed and followed instructions for setting up Resolve 12 on my Windows 7 16gb ram computers with GeForce 760 gpu. Initially, Resolve ...
Reverend Speed's user avatar
2 votes
2 answers
771 views

Avid Media Composer Not Importing MP4s

I just installed Avid Media Composer 8.4.1, and am trying to edit some screen captured MP4s H.264 format I recorded with OBS. However, when I try to import,transcode or link to file the video layer ...
ErynEton's user avatar
-1 votes
1 answer
6k views

Shooting .mp4 with the CANON EOS 600D

Please help. I need to know if I can shoot videos with my CANON EOS 600D in mp4 format. I don't want to go full HD .mov. I just want the camera to record small .mp4 videos - in order for me to load ...
Chanelle's user avatar
7 votes
1 answer
12k views

Removing / Overlaying logo on mp4 video format with ffmpeg on linux

I'm trying to remove a logo from an .MP4 video format with ffmpeg on a Linux machine without re-encoding (for preserving the same quality) with the following command: ffmpeg -i input.mp4 -vf delogo=x=...
SilverShadow's user avatar
2 votes
1 answer
8k views

Why does VLC player convert a 4-minute mp4 to a 4-hour webm?

I used standard webm settings in VLC player 2.2.1 (the latest) to convert a 4-minute mp4 made in Handbrake. In the conversion panel it says "Streaming 04:00" but the end result is "03:49:15" and, on ...
plugincontainer's user avatar
2 votes
4 answers
17k views

Canon C100 mk1 AVCHD vs MP4

I recently bought a Canon C100 mk1 after lots of comparing, specs etc. Now I have a question which I cannot really find a final answer for on the interweb. The Canon C100 can record in either AVCHD ...
Adam Mann Pro's user avatar