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Questions tagged [mp4box]

108 questions
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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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How to change a track ID with ffmpeg or MP4Box?

I need to change the id of a video track in an mp4 container and of course without re-encoding. How can I do that with ffmpeg or MP4Box ? Is that even possible ?
user2061057
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when MP4Box merge videos, cannot play part2 sub video

I wanna add sns accounts in video end, so I have two videos, "/tmp/video/0-1-1-to.mp4" is original video, "/tmp/video/0-1-2-to.mp4" is white board with black text(my accounts), I use: MP4Box -cat /tmp/video/0-1-1-to.mp4 -cat /tmp/video/0-1-2-to.mp4…
chikadance
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Evaluate Traces in Evalvid

I am using evalvid 2.7, ns-2.35, ubuntu 14.04 to evaluate video traffic. But when i use this command: ~/myevalvid2$ ./etmp4 -f -0 sd_a01 rd_a01 st_a01 a01.mp4 a01out i receive this with an error at the end: loss_a01out.txt: percentage of lost…
jjfotso
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MP4Box: Concat working on OSX but not Linux (Ubuntu)

the following code MP4Box -force-cat -add split0.mp4 -cat split1.mp4 -cat split2.mp4 -cat split3.mp4 -new output.mp4 works perfectly on my OSX installation of MP4Box, but fails on an Ubuntu EC2 throwing these warnings WARNING: Concatenating track ID…
user3730954
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SegmentTimeline in MP4Box

Based on DASH standard, there are 4 DASH segment referencing schemes. SegmentBase, SegmentList, SegmentTemplate and SegmentTimline. How to create a MPD file with SegmentTimeline scheme in MP4Box? In SegmentTimeline, there is r attribute which is…
majapahit
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FFMPEG combining videos - returning video with black background?

I'm trying to combine two .mp4 files so they play next to each other in one window. They are the same length (9 seconds), have the same number of frames, and the sources are both independently playable. Here's what i've tried so far: ffmpeg -i…
Julia
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MP4Box set both init and segment-name?

I want to specify my segment names as such: $RepresentationID$/segment_$Number$.m4s and my Init file as $RepresentationID$/play.mp4 I have tried these: This generates segments (init value will be segment_.m4s) mp4box -dash 4000 -segment-name…
MaggiQ
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MP4Box shell script not working

I am trying to use MP4Box to concatenate several .mp4 files in a directory. The basic command in a simple form looks like this: mp4box -cat 'Film.mp4' -cat 'Credits.mp4' -new Total.mp4 I made this script, but it doesn't…
verlager
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