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Questions tagged [mp4box]

103 questions
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Why the audio of my mp4 file is going out of async

I am having a problem converting a wmv file to mp4. I am using x264.exe this command to get the video stream x264 --output temporal.264 --fps 25 --preset slow --bitrate 2048 --vbv-maxrate 2048 --vbv-bufsize 9600 --min-keyint 48 --keyint 48…
Dop
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How to encode HEVC tile in JPEG?

I am trying to convert HEIF file into a JPEG file, I extract HEIC images tiles using MP4Box but when convert these tiles into JPEG using FFMPEG I get this : SAKATA-INX:desktop stellar$ MP4Box -dump-item 1:path=item1.hevc still_rear.HEIC ICC…
Ketan Chauhan
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Python 3 generating MP4 files via MP4Box

I overhauled my code to use popen and still not getting a new MP4 file. If I manually type it out in terminal MP4Box works. But when I run the code below it doesn't raise any error whatsoever. So I am puzzled as what is not working. The two…
Vyndicu
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How can I use MP4Box to create TS mpeg dash

I'm trying to create mpeg dash files with the TS profile using MP4Box. I tried the following command: MP4Box -dash 4000 -profile urn:mpeg:dash:profile:mp2t-simple:2011 -segment-name segment_ output.mp4 It results in a full profile as checked in…
Pedro Romano Barbosa
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Trim H264 Video and wrap in MP4 without re-encoding

So I have a Raspberry Pi app that records output from the on-board camera. These files are recorded as H264. After a user presses a button I want to display a portion of that video with OMXPlayer. OMXPlayer always needs an MP4 container ( it always…
dompardoe
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Video.js live stream setup: help request

I'm working with mpeg dash to stream live between mp4box and dash.js. The problem arises on the client side when the user pauses for too long time the playhead tries to read a point where the buffer has already passed. I'can't find how to get a live…
Massimo Vantaggio
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MP4Box -dash-live how to deal with dash.js

I'm trying to get a pseudo live with mp4box and visualise it with dash.js inside apache or mamp, my os is sierra. For my test i use a video already encoded of Simpsons http://www.h264info.com/clips.html, cause i understand that the encode by ffmpeg…
Massimo Vantaggio
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Retrieve duration of video using FFprobe vs MP4Box

I am using FFprobe and MP4Box for retrieving video streamlet information. I realised that there is a notable difference in the values returned. The following command was used for FFprobe: $ ffprobe -v error -select_streams v:0 -show_entries…
Zac
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convert heif/heic to jpg using gpac

I'm trying to convert HEIC to JPG using GPAC/MP4Box. I have been able to get small JPG "tiles" for a single HEIC file but I can't figure out how to get one large JPG. Commands are like: % MP4Box -dump-item 1:path=tile1.hevc iphonesample.heic %…
OneSolitaryNoob
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How do I use ffmpeg to create an audio-synced cut from a single file?

I have 1 large file (lets call it test.mp4), and I'd like to create a new file (out.mp4) that takes 3 segments that are 1 second apart: Seg1: 00:01:00 - 00:02:00 Seg2: 00:03:00 - 00:04:00 Seg3: 00:06:00 - 00:07:00 And merge them into out.mp4 I've…
AlaShiban
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What's difference result when I setup -frag and -dash with MP4Box?

I have read MP4Box Doc about Mpeg-Dash, but I don't clearly understand about "MP4Box -dash 10000 -frag 2000 largeFile.mp4" and MP4Box -dash 10000 -frag 1000 largeFile.mp4. When I open the *.mpd File I found the duration of SegmentList is 10023(about…
scott1028
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Removing specific lines in SRT file

Im currently working on a PS-script, that will go through my entire libary, locate all mp4 files with subtitles included, and strip them to SRT files with the same name as the video file. I'm doing the whole thing on a command-line level, but im…
Frederik S
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MPEG-DASH - Dash is not valid! Error

I've been trying to learn MP4Box and Dash, which I'm making some progress, but I cannot seem to get my video to work. I followed the instructions on adding the player to a simple html page and I tested with it a known MPD from Dash's test pages and…
Mike
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How can I install MP4Box on CentOS7.3

I can't install MP4Box on CentOS7.3. CentOS Linux release 7.3.1611 (Core) I attempted to install with reference to the following URL. https://www.24x7serversolutions.com/blog/install-mp4box-on-centos/ yum -y install freetype-devel SDL-devel…
Ubunkun
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Concat mp4 files with a command line tool

I am blocked trying to do something, and I'm ready to make a donation if somebody can help me: I try to concat http://s.serero.free.fr/rolex.mp4 video and http://s.serero.free.fr/video.mp4 video in one output mp4 file and I tried during a big time…
user1018697
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