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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How do I use the transitions in Davinci Resolve 17?
This program stands in stark contrast of the simple but effective Windows Movie Maker of old, Davinci is not as 'simple' and it seems like it very 'complex' at times. One of the things that I liked ...
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How to make DVR-generated MP4 easily playable in Windows?
I have a HAR324-8 DVR, and when I export a video clip, I get an MP4 that I cannot play with Windows Media Player 12, Chrome, or Edge browser. When I open the file with VLC Media Player 3.0.16, it will ...
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A 2 Gigabyte MP4 file on AWS S3 can be played on Browser instantly (no need to download the whole file before streaming), why? [closed]
I thought when streaming a mp4 file on a browser, the browser needs to download the whole MP4 file before playing, because the player needs to know metadata like video codec, audio codec, etc. and ...
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Combine mp4 video and a RTMP stream into 1 RTMP output stream via ffmpeg
I need a ffmpeg command to first feed a mp4 video into a RTMP output stream, then followed by a RTMP input subsequently; what should be the parameters to get it working?
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Is my MP4 file size too big?
I am working on a film, which I'm editing, and I rendered the one-hour long video to MP4, and the file size is 64,8 GB, and I think it's absurd, when google says the typical file size for MP4 is 700 ...
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Video Stream Loop FFMPEG for YouTube, what is missing here?
I am using FFMPEG for streaming 24/7 mp4 video on youtube.
The video is somewhere in 2 minutes, the stream starts but does not go on replay, what should I do?
I am using this code:
@echo off
d:
cd &...
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imported a movie now it has two audio tracks
ok, so i ripped a dvd with handbrake, converted it to an mp4, i import the mp4 to kdenlive and kdenlive is doing this thing where it's giving me two audio tracks, so at first i thought it was a right ...
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Lossless convert 3gp video to mp4 using ffmpeg
I'm trying to get lossless conversion of 3gp to mp4 using ffmpeg.
I tried
ffmpeg -i input.3gp -vcodec h264 -c:a aac output.mp4
I tried with "libx264" for the video codec, I tried just a ...
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Converting m2ts to mp4 with ffmpeg I get empty date fields
I am trying to turn an m2ts to an mp4 and add geotagging metadata to it in the process.
I am using the following command
ffmpeg -i input.m2ts -movflags use_metadata_tags -map_metadata 0 -metadata ...
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same image MP4 and png color differences
I'm making a 3D animation but, parts of it need to be static. I can use png renders for that, but pang format have slightly another color than mp4's. Because of this, ther's a visible difference when ...
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Video format for instagram
I need convert to the .mp4 video with this requirements.
Container: MOV or MP4 (MPEG-4 Part 14), no edit lists, moov atom at the front of the file.
Video codec: HEVC or H264, progressive scan, closed ...
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Stabilize MP4 from gyroscope metadata? (Insta360)
I just got an Insta360 One R 1-inch sensor and the footage is shaky as hell. I realised that you need their desktop application to actually stabilise in post-production but since I'm on Linux this is ...
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I want to convert .mp4 to .ts using H264 at constant framerate 25fps
I've been trying to do this conversion for a couple of days reading through forums
ffmpeg -i in1.mp4 -vcodec libx264 -s 720x576 -vf "fps=25"-vsync cfr -b:v 2300k -acodec aac -b:a 128k out1....
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What is the difference between .mts and .mp4 video files, and which is better to edit?
I know that .mts video files use MPEG-4 video compression. But why then don't they just have the .mp4 file name extension?
Since they don't, this means they are not digitally nor conceptually ...
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Does transcoding or compression occur when importing and editing .mts (.mp4) video files?
If a .mts video file is opened or imported to a project in a video editor like Adobe Premiere Pro, is transcoding going on? Video or audio compression? If so, why, instead of editing the raw file as ...
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Streaming MP4 files through HTTP without HLS or DASH?
I am building a web application that consists of a web client and a server. The web client needs to play a continuous stream of MP4 files to the user, preferably through a player like video.js. The ...
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Moov atom not found on Raspberry Pi platform (Linux)
I have asked this question on innumerable sites but I haven’t been able to get an answer to solve my problem. The question
Need help to fix a broken MP4 which lacks a MOOV atom
Seems to be on point ...
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Does ffmpeg concat demuxer update the position of the moov atom if present in each video file?
Years ago I asked this question on: stackoverflow about correct syntax using the ffmpeg Concat demuxer to join mp4 files together. One question I hadn't thought to ask at the time was, when joining ...
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VLC doesn't play mp4v video converted with VLC to h264/h265
VLC reports the original video as:
Codec: MPEG-4 Video (mp4v)
Video resolution: 8192x8192
Frame rate: 7.549296
I am using the Convert / Save option to convert the video using the following profile:
...
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How to convert Fast Mpeg 4v2 (mp4v) with ffmpeg
I have problem with ffmpeg properly recognizing a video encoded with Microsoft Fast Mpeg 4v2 codec. Apparently it's a software codec. VLC plays the video fine. The codec reported by VLC is:
Codec: ...
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Store video files on USB, SD card, microSD, or external hard drive?
Working with raw .mts (MP4) video scenes that are about 6.5 GB in size each (but automatically partitioned by the camcorder into separate 10-minute chunks), what arguments are there for not storing ...
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Should color grading be performed on raw clips, or final sequence?
Camcorders that record in .mts (.mp4) files usually split recorded files according to some maximum time limit per clip. For example, after recording straight for 30 minutes, we might find the entire ...
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FFmpeg convert 1 JPEG frame to 10 sec video
I have a 952×600 JPEG image, generated by a PHP script. I want to create another PHP script that uses ffmpeg, which converts that JPEG image to a MP4 video, which has only 1 frame that lasts for 10 ...
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Why "mat2" show over 90 lines of metadata for video file
I bought a video and see a lot of meta data. What do these metadata mean (overview summary)? Is there something like watermarking to track who the owner is?
mat2 -s video.mp4
[+] Metadata for video....
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Convert Horizontal 1920x1080 mp4 video to Vertical 1080x1920 mp4 with Actual content size of 1080x608
How to convert horizontal 1920x1080 mp4 video to vertical 1080x1920 mp4 with actual content size of 1080x608
I know ffmpeg can do it, but don't know how to do it.
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Is it possible to extract frames from corrupted mp4?
I have an mp4 file that I'm trying to recover. The file is missing a moov atom. I've tried all the usual utilities like ffmpeg, remoover, untrunc but all of them failed. I'm wondering now if it is at ...
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ffmpeg mov_text subtitle too small when converting mkv to mp4
I want to remux a mkv file into mp4.
I used the following command.
ffmpeg -i "input.mkv" -c:v copy -c:a copy -map 0:0 -map 0:1 -map 0:2 -map 0:3 -c:s mov_text "output.mp4"
Problem:...
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3
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Widely compatible video format with lossless audio
I'm a software developer. My software produces animated video files with music.
The video files should be compatible with a wide range of software, and they should have excellent audio quality. The ...
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How to cut part of MP4 file using FFmpeg without reencoding?
I have MP4 file. It's duration is 18 minutes 22 seconds. I want to cut part form 7:35 to 14:01 and to save this part as another MP4 file without reencoding. How to do it using FFmpeg?
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Merging mp4 files and preserving subtitles
I'm in the process of digitizing my entire movie collection. For the most part, it's pretty smooth. I'm using Handbrake to put everything in mp4 format, and it's getting moved to my Plex server.
The ...
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ffmpeg - Slow down video and loop/repeat audio
I am trying to use ffmpeg to slow down a video speed by 25% (75% speed) without changing the audio speed.
ffmpeg -i input_video.mkv -filter:v "setpts=1.3*PTS" "SlowVideo25.mp4"
On ...
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Video artifact removal and restoration - How can it be done? (Really?)
I have been researching this for the past couple of days, and all I could find on the subject were a bunch of research papers, a demonstration video of a model that isn't publicly available, and a ...
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Why does audio not work for this mp4 when played on IPad with headphones plugged?
I'm hosting this video : https://itype.techforge.com.au/assets/videos/repeated/WordRat.mp4.
It seems to work fine unless you happen to be on an IPad and plug the headphones in. With the headphones ...
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Can ffmpeg calculate a new starting keyframe when being asked to split/copy on a non-keyframe?
I understand from a question here that keyframes can (and do) occur anywhere in an h.264 stream, so I'm wondering why most of the advice I see where users want to cut on a specific time or frame (that ...
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How to Merge Multiple MP4 videofiles using concat of ffmpeg while transposing 180 degrees two MP4 videofiles
How to Merge Multiple MP4 videofiles using concat while transposing 180o two MP4 videofiles?
Currently, i am using the following ffmpeg (concat) command:
ffmpeg -f concat -safe 0 -i VIDEOFILES.txt -...
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How to solve audio/video sync issue on my mp4 screenrecording?
I'm relatively new to video editing and struggling to solve a problem whereas the video (i.e my lips) is out of sync with the audio (i.e my voice). The beginning of the video is fine but by the end ...
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Merge mp3 with jpg and add moving volume as background
I'm trying to put an image with a song and save it as a mp4.
But I need some app makes me able to add simple moving edits to the background like Volumes moving
Something like this :
I wish you can ...
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How to embed cover art into MP4 without errors?
I want to add artwork to my MP4 file. How do I do this successfully / without errors?
I've tried these methods with numerous MP4 files, none worked.
If you would like to replicate the errors / bugs, ...
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Premiere Pro on Windows 10 N version - Can't import MP4
I've tried to install various codecs - not working.
I still can download whole Media Feature, but that's what I would like to avoid, since N version is way lightier.
Can you please advice me how I ...
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Screen-Video with 7 FPS (in Davinci Resolve - or other tools?)
I currently edit/cut a lot of computer screen recording footage. The original mp4 files have 7 FPS and I am totally happy with that quality. If I now edit the files in Davinci Resolve 16, the lowest ...
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AAC stream in MP4 file has wrong duration. How to fix?
I've got an MP4 file that is actually 2:09:42 long. But when playing it in VLC player it is being shown as 7:13:45 long. I'm trying to fix this file.
I remuxed it using ffmpeg -i input.mp4 -codec ...
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How can I convert a large file from MP4 to MOV?
I recorded a 5 minute video with my phone, it is a 565M MP4 file. I need to submit it as MOV, specifically. All online converters reject the file as 'too large' and all downloadable programs cost at ...
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"Unable to open key file" error when remuxing a set of encrypted .ts files (as a .m3u8 playlist) into .mp4 with FFmpeg
I'm trying to remux a set of encrypted .ts files (as a .m3u8 playlist) into a single .mp4 file with the next command:
"C:\Users\~\Desktop\test\ffmpeg.exe" -allowed_extensions ALL \
-i "C:\Users\~\...
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Issues with transcoding to a MXF container
I'm new here, so hi to all :).
I'm new to FFmpeg too, and I'm trying to transcode a HEVC file to a mxf file and I'm having some issues. The original file is a rip I made from a Bluray HDR movie a ...
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How to convert ts to mp4
I have a lot of videos needed to convert from ts to mp4, how can I convert it without losing quality? I mean a lot like 30+ each week.
I did a search already but none can do it fast enough, doing it ...
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Need help to fix a broken MP4 which lacks a MOOV atom
Please be forgiving to a video file format newbie, who has travelled far and wide all over the Web in search of a relatively simple question and hoped to get an answer (even a fairly complicated one ...
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5k
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How to prevent ffmpeg from dropping frames when trimming?
I'm using ffmpeg to trim a Zoom video recording (format: ISO Media, MP4 v2 [ISO 14496-14]) via this command:
ffmpeg \
-ss 00:11:42 \
-to 01:11:22 \
-i input-original.mp4 \
-c copy \
output-...
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Smallest Possible Video File in H.264 Format
I am writing some unit-tests for a software that does some work with videos. To do so, I need a programmatically generated video file that is both small and legitimate in that it is actually a ...
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How do I change output file format in ffmpeg batch, when using drag and drop?
I've been searching around for this for some time but can't find a working solution.
I found this question, which is close, but not exactly what I need.
I'm windows and ffmpeg to convert movs to mp4.
...
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how can I convert slow motion video into normal speed without losing fps or audio sample rate?
I want to download a slow-motion video playlist (with the frame rate of the videos being either 480 fps or 1000 fps.) and be able to speed up the videos at least 16x without losing the frame rate or ...
