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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moov atom not found
I downloaded this video using youtube-dl's HLS downloader. The video was being HLS streamed using AES-128. Even though I could view it perfectly fine when it was being streamed in the browser, VLC ...
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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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Sony AVC vs. MAGIX AVC vs. MainConcept MPEG-2: what's the difference?
In VEGAS Pro 16.0 I'm given (at least) three options if I want to render a 1080p 30fps video for YouTube upload:
Sony AVC/MVC, template "Internet 1920x1080-30p"
Use this setting to create the ...
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Extract file thumbnail from mp4 file
I'm currently converting a few mp4 file to mkv. In the process they lose their file thumbnails and I wanted to keep them. So I'm searching for a way to extract the custom thumbnails from the mp4 files ...
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what encoder can take advantage of 16-core setup? converting/ripping Blu-ray to mp4 format
I'm thinking of upgrading my 6-core setup (single CPU) setup to a 2x8-core/CPU setup. I'm wondering what software will allow me to fully utilize all the cores.
I've been using handbrake but I do not ...
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Using GoPro Studio to edit non-GoPro videos
I'm trying to use GoPro Studio to create a video that includes GoPro video as well as HD video from an iPhone. GoPro Studio was not able to deal with the .MOV file from the iPhone (the audio was ...
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Set ipad compatible thumbs for mp4 videos based on a frame of the video with command line
I have a directory of 100 mp4 files. All are working well on my ipad but most of them do not have a working thumb.
I want to generate these thumbs with a command line command (on macosx) based on a ...
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How to convert camrec to mp4 using ffmpeg?
I raise such problem but in the same post I raise the solution.
The first thing to know is that the .camrec format (from Camtasia) is a compressed file, so we must first decompress these files before ...
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DaVinci Resolve 16 - Can you embed markers as chapters into the rendered metadata?
In DaVinci Resolve 16, I see that you can edit the Metadata and that will get embedded into the mp4 container. I also noticed that if an mp4 has embedded Chapters that Resolve doesn't recognize those ...
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Fragmented MP4, speed up initial image (change fragmentation on-the-fly)
I need to remux a live stream from an RTSP container to framgented MP4.
Video stream is a h264 baseline one.
I can have a very good results with ffmpeg, however, I'm struggling with one key thing:
I ...
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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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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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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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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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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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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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MP4 Video created with ffmpeg C++ api does not show in OSX
I am writing a MP4 video from scratch using the C++ API (libav* 4.1.1). This video can be played back just fine using ffplay or VLC. But the Finder Preview and the Quicktime Player on OSX (10.13 and ...
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What's wrong with VLC seeking and/or MKV created by ffmpeg?
I have creeated a video using FFmpeg. It is a result of putting 4 videos together, tiled, using -filter_complex with overlays.
Following the how-to here, I have it created as MKV.
When playing this ...
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Audio in source footage cuts out and starts over a third of the way through (Premiere Pro CS6)
This is a very odd issue that I have been experiencing with a particular video clip.
I have a 2 hour long clip that stops the audio at exactly 00:45:21:03 and starts over, as in the audio from the ...
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ffmpeg: How to avoid "start: 0.033333" when extraction audio from mp4
When extracting audio and video separately from a mp4 and recombining again
ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -vn output-audio.mp4
ffmpeg -accurate_seek -ss 30 -t 10 -i input.mp4 -an ...
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Change resolution according to bandwidth at the start of the video
The use case described here is very much the same as the YouTube's feature where a lower resolution of the video is selected if the user's network speed is low. But, I'd like to do this only at the ...
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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.
...
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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 ...
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Losing audio in re-encoding with ffmpeg
I have some DVDs I want to save MP4s from. The video files are VOB files. I can play them if I change the extension to .mp4, but I can't use the seek bar in Windows Media Player. Also, the files are ...
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Switching between H.264 video streams on the fly?
I have several H.264 encoded MP4 files, as well as still images. From these I want to generate a single video stream that I can broadcast. The stream will be composed of alternating still images and ...
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Gray screen issue after recovered video with ffmpeg
After recovered ".mp4" videos from mobile phone, some videos were corrupt. I used the FFMPEG method to fix the videos. Some CMD commands below;
First Code: recover_mp4.exe good.mp4 --analyze
...
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How much better is Thunderbolt external HDD for video editing?
For the two activities of
transferring 10GB-large mp4 (.mts) video files from external HDD
to laptop, and
editing these same files directly on the connected external HDD drive,
how much better/...
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Converting MTS to MP4 gives strange artefacts
I am converting video taken with various personal cameras in .MTS format to mp4 in order to reduce the file size. I am getting some strange artefacts and I wonder what simple mistake I am making?
...
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How to add subtitles choices to MP4
So I have a Mp4 file, and I want to add multiples subtitles choices to it that will stay forever. A bit like how YouTube, like there are the subtitles choices, and you select which one you want or ...
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why does video need to be in video container files? and why do those file need to be in multimedia container files?
this might be a tough question but i feel the need to ask
why does video need to be in video container files? and why do those file need to be in multimedia container files?
when people where first ...
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Do mobile phones really record in these odd framerates?
I received several video files for editing that were recorded on a mobile phone. (Samsung G11, if it matters.)
When I brought the files into VEGAS (still using version 15.0 Platinum), it reports some ...
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Grey overlay when reading mp4 files in WMP
For a few days, when I play a mp4 video in Windows Media Player (WMP), there is something like a grey filter/overlay.
Thus, the whites are greyish and blacks lack depth. This problem is only ...
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Change default subtitle track in Dolby Vision mp4
I need change default subtitle track in dolby vision mp4 file.
I'm tried to remux via ffmpeg - but after that my tv tell me - the file not supported.
For example - on default track 3 i have forced ...
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"Non-monotonous DTS in output stream 0:0 This may result in incorrect timestamps in the output file." error
Adding all mp4 file in the directory with FFMPEG .
my usual command:
ffmpeg -f concat -safe 0 -i <(for f in ./*.mp4; do echo "file '$PWD/$f'"; done) -c copy output.mp4
This shows below ...
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How to copy the file name to the video metadata title?
I have a bunch of video files, They have the correct file name but the title in the metadata is gibberish, I want to copy the file name & set it as the tile in the metadata.
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DVD similar menu for USB with mp4 movies that work on SmartTV with USB?
I have converted my old VHS-movies to MP4 and put them on a USB to be able to watch them on my smartTV which works well. However, I want a DVD-simular menu where I can have a description, and maybe a ...
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ffmpeg to output something video/mp4; codecs="avc1.42401f" can read
I have a webapp that plays a video through the MediaSource API. The codec is set to video/mp4; codecs="avc1.42401f" and I cannot change that.
I'm able to play the following file https://...
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Decode frames from mp4 file while new ones are encoded into a it
I wrote a video player (written in C++ and C#) that shows a live video stream and also encodes it into mp4 file at the same time. I want to also be able to playback (seek backward or forward) the ...
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Can I check if audio was removed from a mp4 video file?
I have a mp4 video file that has no sound.
I would like to check if its audio was edited/removed.
Can I somehow check this in the meta data?
Are there any other hints that the audio was removed?
The ...
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Trimming mp4 file with multiple audio tracks
Setup:
For recording gaming footage I use OBS together with Voice meeter to split my audio sources for later editing with DaVinci Resolve.
I use the "Replay" function of OBS that records the ...
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How can I transcode webcam MP4 footage to ProRes without losing lip-sync?
A client has recorded footage on a webcam and delivered it as MP4 files.
I am trying to transcode these files to ProRes 422 LT to work with them in Premiere. However, on doing so, the audio goes out ...
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FFmpeg embed thumbnail Windows
I have seen commands like this online:
ffmpeg -i video.mp4 -i image.png -map 1 -map 0 -c copy \
-disposition:0 attached_pic out.mp4
However these command don't work as advertised with Windows ...
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How to open MP4 video with mp42 codec (hvcC) in Vegas Pro?
Apparently the video is with no content. Vegas pro detects the file but shows a black footage for 8 hours. Thanks in advance.
General
Complete name : C:\Docs\A09_20220424145630_007....
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Confused about Bitrate
I am recording demos using a screen recorder (Wondershare DemoCreator) which will be uploaded to a video streaming website.
The website has certain recommendations for video quality like,
Codec: H.264
...
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MP4 file has incorrect length (duration) and plays back 5x slower than it should
I have five GoToMeeting (GTM) .mp4 recordings that I saved and downloaded from a five-day class I was teaching. Each recording represents each day's appx. 8 hour class duration. I am importing them ...
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Compressing video to specific size accurately
I'm using guide provided at this page to compress videos to specific size with ffmpeg. The sizes I'm aiming are relatively small (8mb wanted compared to 50mb original) and when I'm trying to compress ...
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189
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How to edit my Playstation 5 4K gameplay?
Members. I'm facing a few issues while trying to edit 4K gameplay footage from my PS5. PS5 has two options to capture gameplay:
1080P (.mp4)
4K (.webm)
First, the captured 4K footage extension is ....
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1
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How to play Video TS folder in VLC or convert it to MP4
I am trying to play a DVD by copying the contents (a Video TS and a Jacket_P folder) to my computer. I copied the Video_TS and Jacket_P folders from a DVD to my computer. The Video_TS folder has the ...
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